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With F4 Controller and EZ-Zone Limit

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1. Description Mfr Mfr Part No Ref Part Qty UOM Solenoid Valve LN2 Setup CUSTOM CUSTOM SV4 180100 1 ea Solenoid Valve LN2 Supply CUSTOM CUSTOM sv3 180102 1 ea Relief Valve Rego SS 9432 180104 1 ea Arc Suppressor ITW Paktron 104M06QC100 AS3 4 200296 2 ea General Parts Description Mfr Mfr Part No Ref Part Qty UOM Port Plug Silicone Foam 4 CUSTOM CUSTOM 300534 2 ea Viewing Window CUSTOM CUSTOM 300692 1 ea Door Gasket CUSTOM CUSTOM 300541 1 ea Door Latch Chamber Workspace Southco A2 10 501 21 300009 1 ea Caster Swivel RollMaster 35 15 11 300011 2 ea Caster Rigid RollMaster 35 16 11 300012 2 ea Shelf with 4 Clips CUSTOM CUSTOM TE 0701 1 ea Shelf Retainer Clip Kason Style 66 0066000008 300015 4 ea Blower Wheel CW CUSTOM Required when replacing circulator motor 382498 1 ea Blower Wheel CCW CUSTOM Required when replacing circulator motor 382499 1 ea Seal Fan Motor Shaft CUSTOM Required when replacing circulator motor 300286 2 ea TestEquity 3007C Temperature Chamber Page 8 13 Chapter 8 Maintenance Series F4 Temperature Controller Setup Parameters CAUTION The Series F4 User s Manual is a general manual and is written by the manufacturer Watlow for a wide variety of applications and configurations Not all features or functions are applicable Only the capabilities of a model F4SH CKAO 01 as described on page A 7 of the Series F4 User s Manual
2. R 508B pressure switch DPS2 trips If cooling from high to low temp is reduced Trips during a high temp pull down Trips when the cool light cycles from on to off Low charge leak R 508B discharge pressure regulator may be defective Solenoid valve SV2 may be defective Hot gas bypass regulator may be defective or set too low Page 8 8 TestEquity 3007C Temperature Chamber Chapter 8 Maintenance SYMPTOM CONDITION CAUSES R 508B standby pressure is less than 132 PSIG When unit is off and system is equalized Low charge leak R 404A sightglass has bubbles or does not look full During all running conditions Only when cool light is cycling Low charge leak No problem This is normal Cools too slow or does not reach 73 C Cools all the time R 508B standby is ok no bubbles in R 404A sightglass When cool light is OFF Chamber interior is overloaded Test sample is energized giving off heat Circulator motor is not turning Port plug is not in port Door is not sealing completely Ice on evaporator Solenoid valve SV1 may be defective in open position Temperature varies more than 0 5 C or 1 C total If tuning PID control parameters in temperature controller were changed If tuning PID control parameters in temperature controller are as shipped from TestEquity If tuning PID control parameters in temperature co
3. Page 8 4 TestEquity 3007C Temperature Chamber Chapter 8 Maintenance How to inspect the electrical compartment 1 Disconnect the chamber from the power source 2 Turn the Main Disconnect Switch to the OFF position 3 Remove the lower door retaining screw located on the right side Open the lower door 4 Check for loose components loose wires burned insulation near terminals and burned or excessively pitted contacts on contactors How to clean the condenser 1 Disconnect the chamber from the power source 2 Turn the Main Disconnect Switch to the OFF position 3 Remove the lower door retaining screw located on the right side Open the lower door 4 Clean the condenser and desuperheater fins with a vacuum cleaner NOTE You may need to clean the condenser more frequently if the chamber is in a dusty environment You may be able to clean the condenser less frequently if the chamber is in a very clean environment How to verify the calibration TestEquity recommends verifying the calibration before attempting to actually perform a calibration The state of the art instrumentation used in TestEquity chambers is of the highest quality and seldom goes out of calibration If you try to calibrate the instrumentation before determining that calibration is necessary you may make it worse if done incorrectly Variations in temperature throughout the chamber interior are NOT a measurement of accuracy These variations called
4. WARNING Nitrogen gas is heavier than air It makes up about 78 of the Earth s standard atmosphere is non toxic colorless odorless and tasteless Pure nitrogen gas in a closed area can present an asphyxiation hazard suffocation without warning Page 1 2 TestEquity 3007C Temperature Chamber Chapter 1 Safety Operation Safety Notices IN CAUTION Al CAUTION IN CAUTION IN CAUTION IN CAUTION IN CAUTION IN CAUTION This chamber has a crankcase heater to protect the high stage compressor The chamber must be connected to the power source AND the Main Disconnect Switch must be ON for 3 hours prior to operating the chamber Although it may be safe to use the chamber immediately this procedure ensures the longest possible life for the high stage compressor if the chamber has been removed from the power source for more than 24 hours The Series F4 User s Manual is a general manual and is written by the manufacturer Watlow for a wide variety of applications and configurations Not all features or functions are applicable Only the capabilities of a model F4SH CKAO 01 as described on page A 7 of the Series F4 User s Manual are applicable Cascade Control as described on page 3 6 of the Series F4 User s Manual is not applicable in this configuration The Retransmit function is available as an option The Series F4 Alarm functions are NOT used in the chamber s safety
5. The supply connection is on the upper back ofthe chamber centered between the two fan motors This connection is a 3 8 inch JIC Joint Industrial Council stainless steel 37 degree flare fitting rated for very low temperature operation The fitting is mounted on a non metallic thermal breaker to help limit frost formation and condensation Page 2 4 TestEquity 3007C Temperature Chamber Chapter 2 Installation The recommended connection method from your source of liquid nitrogen is either a length of 3 8 inch OD ASTM A269 0 049 inch Wall Seamless 316 series stainless steel tube terminated on one end with a 37 degree JIC flare fitting and insulated with closed cell vapor sealed foam or alternately a commercially manufactured vacuum jacketed liquid nitrogen connecting tube designed for this service For urethane and polyisocyanurate Dow Trymer foam typical long term operation liquid nitrogen insulation wall thickness is approximately 2 inches per side 4 inches OD If a 3 8 inch OD tube stainless steel tube is selected the insulation should be installed flush against the non metallic thermal breaker around the LN2 Inlet fitting on the chamber Ifa vacuum jacketed tube is selected a short adapter may be required to make the final connection to the chamber s LN2 Inlet fitting For a vacuum jacketed connection a short ring of closed cell vapor sealed foam should be applied flush against the thermal breaker on one side and overlappin
6. are applicable Cascade Control as described on page 3 6 of the Series F4 User s Manual is not applicable in this configuration The Retransmit function is available as an option CAUTION The Series F4 Temperature Controller has been properly configured by TestEquity to match the chamber s system requirements and to perform optimally over a wide range of operating conditions Improper modifications to these setup values can result in erratic performance and unreliable operation Setup examples in the Series F4 User s Manual are NOT applicable to this chamber Do not attempt to modify the setup values unless you thoroughly understand what you are doing If there is any doubt please call TestEquity before proceeding CAUTION The alarm outputs ofthe Temperature Controller are NOT connected to the chamber s safety system TestEquity does NOT recommend using the Temperature Controller s alarm function as the main protection device CAUTION NEVER select Full Defaults in the Factory Test Menu Full Defaults are NOT the TestEquity configuration parameters for this chamber If you select Full Defaults you must reconfigure all System and Operation Parameters as documented in the TestEquity manual NOT the Series F4 User s Manual TestEquity has configured the Temperature Controller with the parameters as documented on the following pages Page 8 14 TestEquity 3007C Temperature Ch
7. C_F Cor F Alt P r Lo Range Low 75 Do not make any lower r h Range High 180 Do not make any higher Fag Output 2 Function _ P 9 Do Not Change 5d Limit Sides both Alt high High only or LoW Low only L h Yj Limit Hysteresis ce Change not recommended AE Y Alarm Type oFF Do Not Change PA I Upper Display ACP Alt none PAr e Lower Display LSE Alt Lh s High Set Point or LL S Low Set Point Ad S Zone Address 1 Not functional for this application NOTE 1 The Lockout Menu sets the security clearance level as follows i Operations Menu read only e Operations Menu set point read write 3 Operations Menu set point read or write same as level 2 4 Operations Menu full access read write required to access Calibration Offset below S Operations Menu and Setup Menu full access required to access Setup Menu and Calibration Offset below Operations Menu Prompt Function Setting Alternate Setting Low Set Point Appropriate Low Limit Set Point High Set Point Appropriate High Limit Set Point Calibration Offset Calibration Offset as required see NOTE 2 below NOTE 2 LoC parameter in Setup Menu must be set for 4 or 5 to access the Calibration Offset parameter TestEquity 3007C Temperature Chamber Page 8 17 Chapter 9 Warrant Chapter 9 Warranty TestEquity LLC Limited Warranty TestEquity LLC TestEquity warrants Environmental Chambers Equipment
8. Event Output2 to On in static set point mode when the LN2 Boost Cooling System is to be operational In this mode the Modbus programming register for Digital Output 2 is 2010 CAUTION Remember to set LN2 to On in the profile event prompt for all programmed steps when the LN2 Boost Cooling System is to be operational To Enable or Disable the LN2 Boost Cooling System in static set point mode 1 The F4 Temperature Controller must first be on the Main Main Page Page Press the Aor Y key to position the Cursor next to SP1 85 0 C A the DigitalOut prompt gt Digitalout1 A Power1 50 Y 2 Press the key once You will see Choose Event Output_ Choose Event Output prompt in the lower Event Output1 display Press the Aor Y key to position the Cursor Event Output2 A nextto Event Output2 Event Output3 y 3 Press the key once to select Event Output2 Event Output2_ Then press the Aor Y key to select On or Off Off gt On 4 Press the key once to return to the Main Page Choose Event Output prompt SP1 85 0 C A 5 Press the lt key once to return back to the Main Page gt Digital0ut12_____ E Power 1 50 V You will see a 2 in the DigitalOut line if Event is On When the demand for cooling throttle is at least 50 Powerl prompt on lower display of F4 Temperature Controller indicates 50 or more the number 7 will be indicated at the DigitalOut prompt This will energize the LN2 Cooling Solenoid to inject LN2 into the chambe
9. and are not covered in these instructions Your chamber was configured prior to shipment for the particular voltage that was specified at time of order These instructions should be used to verify the input voltage configuration prior to installation or to change the input voltage from one configuration to another Z CAUTION This chamber must be properly configured for either 208 V or 230 V 240 V nominal input 208 V and 230 V 240 V are NOT the same Do NOT guess Do NOT assume you have 220 V You must verify the exact type of electrical service you have If there is any doubt you must consult with a qualified electrician who is familiar with industrial plant wiring In addition the input line voltage should be measured while the chamber is operating in a continuous HEAT mode to ensure that the expected nominal voltage of either 208 V 5 10 or 230 V 10 is present 208 V Wire T1 to 3 230 V Wire T1 to 4 1234 Control Transformer TR1 Figure 2 1 Location of Input Configuration Terminals on the Electrical Sub Panel Page 2 2 TestEquity 3007C Temperature Chamber Chapter 2 Installation NOTE Refer to Figure 2 1 for the location of the input configuration terminals on the electrical sub panel that are described below 230 V 60 Hz Input Configuration for 240 V lines 1 Turn the Main Disconnect switch to the OFF position 2 Remove the lower door retaining screw located on the right side Open the lower
10. e Press to select Resume Continue Holding gt Resume Terminate While a profile is on Hold the current set point can be adjusted at the SP1 prompt on the Main Page When a profile is resumed during a Ramp step the controller uses the Static Set Point from the Main Page to calculate the rate of change needed to get to the set point at the end of the step When a profile is resumed in a soak step the new set point value will be used as the soak value for the time remaining in the step How to Terminate a Running Holding Profile 1 Press the Profile key while the profile is running to enter the Resume Control menu e Then press Aor Y to make your choice for Terminate e Press to select Terminate Hold Profile _ Don t Hold Hold gt Terminate If you manually terminate a running profile the profile ends with a set point of Off This does not turn off the chamber fan The chamber temperature can reach 55 C just from heat generated by the fan and even higher if your test sample is energized See Protecting an Energized Test Sample in Chapter 5 for important information regarding energized test samples How to Delete or Re Name a Profile 1 Go to the Profiles Page Move the cursor down the Main Page to Go to Profiles then press the key Main Page___ gt Go to Profiles Go to Setup Go to Factory lt EM gt 2 Choose Delete or Re Name e Press Aor Y to scroll through your choice
11. gradients are a function of the physical design of the chamber and its airflow the characteristics of the test sample and how it is oriented in the chamber You cannot calibrate to improve gradients The correct way to adjust what the temperature controller displays compared to what is measured at some point other than the controller s sensor is with the Calibration Offset parameter See page 6 2 of the Series F4 User s Manual for details Calibration verification should be performed with the Calibration Offset set to 0 0 zero The F4 Temperature Controller accuracy is specified 1 55 C above 50 C and 1 66 C below 50 C Total system accuracy in the chamber includes the controller plus the thermocouple wire accuracy of 1 0 C Total system accuracy over the chamber s operating range is can be as much as 2 66 C although it is typically better than 1 0 C The easiest way to verify the instrumentation accuracy is with an independent calibrated temperature sensor and display Place the sensor near the chamber s sensors which are located towards the right side of the conditioner fan grille If the readings agree within the specified limits above then no calibration adjustments are necessary If calibration of the temperature controller is necessary refer to page 9 2 of the Series F4 User s Manual and follow the instructions for Thermocouple Input Procedure TestEquity 3007C Temperat
12. www testequity com GPIB Ethernet optional The optional Ethernet interface model TE 1055 consists of an external converter box that connects to the chamber s RS 232C interface Ethernet programming resources can be downloaded from http www testequity com ETHERNET Page 4 16 TestEquity 3007C Temperature Chamber Chapter 5 Limit Controller Chapter 5 Limit Controller Introduction The EZ Zone Limit Controller is a protection device It turns the chamber OFF if the workspace temperature exceeds either a high temperature or low temperature limit You can set these limits to correspond to the maximum and minimum temperature that your test sample can safely withstand This provides protection against someone setting the F4 Controller to a temperature that is unsafe for the test sample It also provides protection in the unlikely event of a chamber system component failure The Limit Controller has its own temperature sensor thermocouple and functions completely independent of the F4 Controller This section provides a brief overview on how to operate the Limit Controller For more detailed instructions see the EZ Zone User s Manual CAUTION The EZ Zone User s Manual is a general manual and is written by the manufacturer Watlow for a wide variety of applications and configurations Not all features or functions are applicable Only the capabilities of a model PM6LIAJ AAAABAA are applicable CAUTION The
13. 2 27 100072 1 ea Compressor Copeland ZF11K4E TF5 241 1 part of 17 1100059 2 ea Crankcase Heater 40 W 120 V Copeland 018 0041 01 2 CC1 100071 1 ea Desuperheater Coil CUSTOM CUSTOM 16 100621 1 ea Discharge Pressure Regulator Sporlan ORI 6 80 325 H 23 100069 1 ea Distributor Sporlan D260 2 1 4 2 L 7 100491 1 ea Dual Pressure Switch Johnson P70NA IC 11 DPS1 2 100015 2 ea Evaporator Coil CUSTOM CUSTOM 8 100620 1 ea Expansion Tank Ref Research 9027 22 100075 1 ea Expansion Valve HS Danfoss 068U2317 24 32 100471 2 ea Expansion Valve Main Danfoss 068U3317 28 100487 1 ea Expansion Valve Suction Cool HS Sporlan SBFJ AA C 25 100077 1 ea Expansion Valve Suction Cool LS Sporlan SBFS B ZP 3 8 x 5 8 odf 26 100507 1 ea Filter Drier Sporlan C 083 S 4 100070 2 ea Gauge 0 x 400 PSIG Pressure Miljoco CUSTOM 14 100495 2 ea Gauge 30 x 200 PSIG Compound Miljoco CUSTOM 12 100494 2 ea Hot Gas Bypass Regulator HS Sporlan ADRI 1 1 4 0 55 10 100078 1 ea Hot Gas Bypass Regulator LS Sporlan ADRS 2 0 30 29 100068 1 ea Oil Separator Temprite 901 19 100537 1 ea Orifice for 100471 100487 Danfoss 068U1037 24A 28A 32A 100472 3 ea Pressure Switch Johnson P70AA 118C 30 PS3 180119 1 ea Sight Glass Danfoss 140 0143 3 100081 1 ea Solenoid Valve Sporlan E6S130 3 8X3 8 ODF 5 6 31 100067 3 ea Solenoid Valve Coil Sporlan MKC 1 120 50 60 SV1 2 3 100011 3 ea Strainer Suppco 8 218 20 100050 1 ea LN2 Parts opt 0018
14. 3 1 Chapter 3 Operation Front Panel Switches and Lights Main Disconnect Switch The Main Disconnect Switch large knob on the front right side controls power to the entire chamber and provides a mechanical safety interlock to the lower door In the ON position clockwise primary power is connected The Temperature Controller Limit Controller and optional Chart Recorder are always functional when the Main Disconnect Switch is ON regardless of the Master Switch position The Main Disconnect Switch should be left ON if the chamber is usually used on a daily basis In the OFF position counter clockwise primary power is disconnected The Main Disconnect Switch can be left OFF if the chamber is not used on a daily basis It can also be locked in the OFF position with a padlock The knob has a red insert that can be pushed in at the top to reveal the lock hole CAUTION This chamber has a crankcase heater to protect the high stage compressor The chamber must be connected to the power source AND the Main Disconnect Switch must be ON for 3 hours prior to operating the chamber Although it may be safe to use the chamber immediately this procedure ensures the longest possible life for the high stage compressor if the chamber has been removed from the power source for more than 24 hours Conditioning Switch ON Mode The Conditioning Switch enables all chamber functions When the Conditioning Switch is OFF and the Power switch is O
15. ESI EQUITY Model 3007C FastRate Temperature Chamber With F4 Controller and EZ Zone Limit Controller Operation and Service Manual TestEquity LLC 6100 Condor Drive Moorpark CA 93021 Support 877 512 3457 Toll Free 805 480 0638 Corporate 800 732 3457 805 498 9933 http www testequity com Copyright 2010 2015 TestEquity LLC Rev 1 6 Oct 7 2015 A TableofContents 9 Chapter 1 Safety Instructions 1 1 Introduction 1 1 Installation Safety Notices 1 1 Operation Safety Notices 1 3 Chapter 2 Installation 2 1 Uncrating 2 1 Preparation For Use 2 1 Installation Location 2 1 Condensate Drain 2 2 Input Power Configuration 2 2 Connection to the Power Source 2 3 Power Source Connection 2 3 Phase Sequence 2 3 LN2 Liquid Nitrogen Installation Option 0018 2 4 Chapter 3 Operation 3 1 Introduction 3 1 Summary of Chamber Operation 3 1 Front Panel Switches and Lights 3 2 Main Disconnect Switch 3 2 Conditioning Switch ON Mode 3 2 Conditioning Switch Event 1 Mode 3 2 Light Switch 3 3 Heat Light 3 3 Cool Light 3 3 Loading the Chamber 3 4 Port Plugs 3 4 Performance Considerations 3 5 Avoiding Moisture 3 5 Internal Test Fixtures 3 5 Chapter 4 Temperature Controller 4 1 Introduction 4 1 Security Features 4 1 Temperature Controller Keys and Displays 4 2 Main Page 4 3 System Enable Function 4 4
16. EZ Zone Limit Controller has been properly configured by TestEquity to match the chamber s system requirements Improper modifications to these setup values can result in unreliable and unsafe operation Do not attempt to modify the setup values unless you thoroughly understand what you are doing The correct values are documented in the EZ Zone Limit Controller Setup Parameters section of this manual CAUTION Always verify that the Limit Controller s high and low limits are set to temperatures that are appropriate for your test sample CAUTION If your test sample is energized it may be capable of raising the workspace temperature beyond safe limits This could occur if your test sample exceeds the live load rating of the chamber or if the chamber s refrigeration system fails This chamber has a set of contacts that can be used to remove power to your test sample if the Limit Controller s temperature limits are exceeded TestEquity 3007C Temperature Chamber Page 5 1 Chapter 5 Limit Controller Limit Controller Keys and Displays Temperature Units Indicator Indicates whether the temperature is Upper Display displayed in Fahrenheit or Celsius Indicates the actual chamber temperature or displays the value of the parameter in the lower display EZ ZONE Output Indicator Lit when the limit setting is exceeded Only light 2 is applicable for this configuration Lower Display Indicates SAF E during nor
17. Static Set Point Control Manual Mode 4 5 Boost Heat 4 5 LN2 Liquid Nitrogen Boost Cooling Option 0018 4 6 Profile Programming 4 7 Step Types 4 7 How to Program a New Profile 4 9 Programming Hints 4 10 Profile Key 4 10 How to Start a Profile 4 10 How to Hold Resume a Running Profile 4 11 How to Terminate a Running Holding Profile 4 11 How to Delete or Re Name a Profile 4 11 How to Edit a Profile 4 12 Profile Example 4 13 Digital Event Outputs 4 14 Event Relays 4 14 Operations Page 4 15 Setup Page 4 15 Table of Contents Factory Page Computer Interface RS 232C 4 16 4 16 4 16 Common Modbus Registers 4 16 GPIB optional 4 16 Ethernet optional 4 16 Chapter 5 Limit Controller Introduction Limit Controller Keys and Displays 5 1 5 1 5 2 How to Set the High and Low Temperature Safety Limits Resetting an Out of Limit Condition 5 2 Silencing the Audible Alarm 5 2 Protecting an Energized Test Sample 5 3 Chapter 6 Frequently Asked Questions Chapter 7 Specifications Model 3007C Chamber Specifications F4 Temperature Controller Specifications Chapter 8 Maintenance Preventive Maintenance Intervals Maintenance Procedures How to clean the chamber interior and exterior 6 1 7 1 7 1 7 2 8 1 8 1 8 2 How to listen for abnormal noise or vibration 8 2 How to inspect the door seal 8 2 How to inspect the refrigeration m
18. Terminal Strip on the electrical sub panel Connections to the safety contacts are I mm at terminals Al and A2 Sel OUL III EI Figure 5 2 Location of Safety Contact Connections on the Electrical Sub Panel TestEquity 3007C Temperature Chamber Page 5 3 Chapter 6 Frequently Asked Questions Chapter 6 Frequently Asked Questions The input voltage label says 230 or 208 VAC I thought I had 220 or 240 VAC Is that ok 220 V is a misnomer there is no such standard as nominal 220 V in the United States The standard line voltage in the United States is either 208 V or 240 V You must verify the exact type of electrical service you have If there is any doubt you must consult with a qualified electrician who is familiar with industrial plant wiring In addition the input line voltage should be measured while the chamber is operating in a continuous HEAT mode to ensure that the expected nominal voltage of either 208 V 5 10 or 230 V 10 is present Also make sure the chamber is properly configured for either 208 V or 240 V nominal input as described in Chapter 2 Input Power Configuration If you have a 208 V line that measures under 198 V the chamber will require boost transformers If you have a 240 V line that measures over 252 V a 240 V line which is 10 high could measure up to 264 V the chamber will require bucking transformers Why doesn t the chamber come with a power cord and plug Most local ele
19. by choosing e Profile to jump to e Step to jump to and e Number of Repeats NOTE If a power out condition occurs during a profile and more than 20 jump steps are stored in the F4 s Profile Program memory the controller will terminate the profile and turn off all outputs if Continue Hold or Terminate was selected as the Power Out action If Profile Reset or Go to Idle Set Point was selected the controller will take those actions A pop up message will warn of this when the 21st jump step is programmed End Step End terminates the profile in a chosen state All profiles must have an End step It cannot be deleted or changed to another step type Define the End by choosing Hold Control Off All Off or Idle end state NOTE TestEquity recommends having the end step type to be Hold or Idle TestEquity does NOT recommend using an end step type of Control Off or All Off This does not turn off the chamber fan The chamber temperature can reach 55 C just from heat generated by the fan and even higher if your test sample is energized Wait For step option The use of Wait For in a profile is optional Ramp Time Ramp Rate and Soak steps can be programmed to wait for a particular chamber temperature or event input condition The wait conditions must be satisfied before the time clock and the step activity proceeds Digital inputs must first be configured in the System Menu as Wait For Events with the condition to be met also specified The
20. chamber should be connected to the AC power source by a qualified electrician who is familiar with industrial plant wiring TestEquity 3007C Temperature Chamber Page 1 1 Chapter 1 Safety WARNING Liquid nitrogen is extremely cold 190 C or 320 F It can cause severe burns frostbite or eye damage When handling liquid nitrogen containers or piping wear goggles for eye protection protective clothing and thick impervious gloves such as welder s leather WARNING The connecting tube must include a relief valve designed for use with liquid nitrogen if a manual or automatic isolation valve is present at your source of supply or at any point between the source and the connection point on the back of the 3007C Chamber This relief valve must be rated for at least 35 psig and less than 100 psig It is needed to prevent excessive pressure from developing when the nitrogen in the connecting line evaporates during off cycles Care should be exercised in sighting the relief valve to assure that should it relieve the effluent will not discharge towards operating personnel WARNING All liquid nitrogen connecting piping or tubing must be well insulated with appropriate vapor sealed or vacuum jacketed materials Un insulated nitrogen connecting lines can condense pure oxygen on their surface since liquid nitrogen is colder than liquid oxygen Liquid oxygen can present a spontaneous fire hazard when spilled onto organic materials
21. continuously 3 After about 5 minutes of operation in this mode inspect the sightglass 4 If you see bubbles or it appears partially full then this indicates that there is probably a leak 5 When the Temperature Controller is cycling Cool Light cycles on off the sightglass may appear 1 2 to 2 3 full This is normal TestEquity 3007C Temperature Chamber Page 8 3 Chapter 8 Maintenance How to verify the chamber performance These tests verify the performance of the heating refrigeration electrical controls temperature controller and air circulation systems The chamber should meet all published performance specifications if all of these tests are successfully passed These tests assume that the Temperature Controller s setup and tuning values have not been changed from the values as shipped from TestEquity Also the Limit Controller high limit must be set to over 85 C 88 C would be fine and the low limit set to 75 C If the chamber fails any of these tests it should be removed from service to prevent further damage until the cause of the problem is determined and resolved The chamber interior should be empty and at ambient temperature approximately 23 C Set the Temperature Controller Set Point to 85 C Turn the Master Switch ON Turn Event 1 DigitalOut 1 on the F4 Controller ON The Heat Light should be ON continuously and the Cool Light should be OFF The chamber should heat up to about 80 C and be
22. door 3 Locate the Control Transformer TR1 Wire number T1 must be connected to the 230 V terminal 4 on Control Transformer TR1 208 V 60 Hz Input Configuration 1 Turn the Main Disconnect switch to the OFF position 2 Remove the lower door retaining screw located on the right side Open the lower door 3 Locate the Control Transformer TR1 Wire number T1 must be connected to the 208 V terminal 3 on Control Transformer TR1 Connection to the Power Source CAUTION This chamber should be connected to the AC power source by a qualified electrician who is familiar with industrial plant wiring The Main Disconnect Switch on the front panel removes primary power to the entire chamber All branch circuits on the load side of the Main Disconnect Switch are individually fused However your local electrical code may require a separate disconnect switch within sight of the chamber Power Source Connection 1 Turn the Disconnect Switch to the OFF position 2 Remove the lower door retaining screw located on the right side Open the lower door 3 Remove the chamber s right side panel 4 Mount the input wire through the hole on the rear of the chamber using an appropriate bushing An additional 4 feet of wire will be needed need to reach to the terminals on the electrical subpanel The wires will need to pass through the Input Access Hole This hole is located in the corner of the partition which separates the compressor compartment fr
23. e Press to select your choice The controller will prompt you to select the profile you want to delete or re name Main gt Profile__ Edit Profile Delete Profile Re Name Profile mi TestEquity 3007C Temperature Chamber Page 4 11 Chapter 4 Temperature Controller How to Edit a Profile 1 Go to the Profiles Page Move the cursor down the Main Page to Go to Profiles then press the gt key Main Page___ gt Go to Profiles Go to Setup Go to Factory 2 Choose Edit Profile e Press the W key to choose on Edit Profile Then press the gt gt key Main gt Profile__ Create Profile Edit Profile Delete Profile 3 Select the desired stored profile to edit Edit Profile e Press the Aor Y to scroll through the list of Profilet stored profiles gt Profile2 e Press to select the desired profile Profile3 4 Choose how to edit the step Choose to e Press the Aor Y to scroll through the list of step Insert Step edit choices gt Edit Step e Press to select your choice Delete Step Done 5 To edit a step Edit Step De e Press the Aor Y to scroll through the list of steps gt Step 1 Ramp Time you want to edit Step 2 Soak e Press to scroll through the step parameters and Step 3 Ramp Time make any desired changes 6 To insert a step e Choose Edit Profile see step 4 above Press the Aor Y to scroll through the number of the step that the ne
24. letter or number desired e Press to move to the next position e Continue until the name is complete or until you move through the name space into the next screen e Press to save the name of the profile Choose to Name _ No gt Yes Enter Profile Name _ PROFILE1 A Y Adjusts Char lt gt Save Changes 4 Choose the step type There are six step types each of which must be defined through different parameters See Step Types earlier in this chapter Choose Step1 Type __ Autostart gt Ramp time p Ramp Rate v 5 Define each step type e The Series F4 prompts you to define the parameters of each step type See Step Types earlier in this chapter Choose to wait o gt Step does not wait Step waits for Enter Ramp Time 00 00 01 A v Adjusts Digit lt gt Save Changes H M S Enter Chi SP _ 85 0 C A v Adjusts Value lt Back gt Next 6 Choose the end state All profiles end with an End step which is preprogrammed into the new profile See End Step earlier in this chapter Choose End State gt Control Off All Off gt Idle gt 7 Save your settings e Press lt to exit the Profiles Page e After exiting the Profiles Page choose A to save profile data Save profile data or restore values v Restore A Save TestEquity 3007C Temperature Chamber Page 4 9 Chapter 4 Temperature Controller Programming Hint
25. list of Profilet stored profiles gt Profile2 A e Press to select the desired profile Profile3 vy 3 Select the desired step to start on Start e Press the Aor Y to scroll through the list of steps Step 1 Ramp Time Generally you would start on Step 1 but you can Step 2 Soak also start on any other step Step 3 Ramp Time v e Press to select the desired start step and the profile will begin to run The Profile Indicator will stay lit Main Page gt Profile 2 Running Step 1 SP1 85 0 C V While running a profile the Main Page on the lower display will keep you informed about the progress of the profile Use the Aor V key to scroll through the list of running profile parameters You cannot manually change any operating condition while the profile is running Page 4 10 TestEquity 3007C Temperature Chamber Chapter 4 Temperature Controller How to Hold Resume a Running Profile 1 To Hold a running profile press the Profile key to enter the Profile Control menu e Then press Aor Y to make your choice for Hold e Press to select Hold e The Main Page will appear with a profile status of Holding The Profile Indicator will be off Hold Profile _ Don t Hold gt Hold Terminate Main Page gt Profile 2 Holding Step 2 SP1 23 0 C Y Resume Profile 2 To Resume profile on hold press the Profile key to enter the Resume Profile menu e Then press Aor Y to make your choice for Resume
26. manufactured by TestEquity and supplied under this contract to be free from defects in materials and workmanship under normal use and proper maintenance TestEquity will repair or replace any defective part for a period of THREE YEARS from the date of invoice TestEquity reserves the right to require any defective part be returned freight prepaid to TestEquity s factory or to inspect any defective part at the Purchaser s site TestEquity shall have sole discretion to determine whether any part is defective and whether any defective part will be repaired or replaced This limited warranty shall extend to any standard chamber accessory and component part which is normally sold by TestEquity Non standard accessories and component parts specified by the Purchaser shall be warranted only to the extent of the original manufacturer s warranty if any exists If the repair or replacement is performed in the FIRST YEAR from the date of invoice TestEquity will also pay for the labor associated with the repair at the Purchaser s site subject to TestEquity s prior approval During the SECOND and THIRD YEAR of the warranty period Purchaser will be responsible for the installation and cost of installation of replacement or repaired parts Purchaser shall notify TestEquity in writing of any alleged defect within 10 days after its discovery within the warranty period TestEquity reserves the right to satisfy the labor portion of this limited warranty either thr
27. proper ventilation around the chamber must be at least 12 from both the left and right side and 24 from the rear CAUTION This chamber is designed for operation in a conditioned laboratory environment Operation above 30 C 85 F or below 16 C 60 F ambient room temperature is NOT recommended TestEquity 3007C Temperature Chamber Page 2 1 Chapter 2 Installation Condensate Drain The chamber has a condensate drain connection on the rear of the chamber This provides a way to remove condensate that may accumulate in the chamber during low to high temperature cycling or when the refrigeration system runs to maintain moderate temperatures Any time the ambient air is subjected to temperatures below the dew point moisture will condense out of the air The effect is ice or frost during low temperature operation When the chamber is heated above 0 C the ice or frost will turn into water The fitting accommodates a 12 inch male pipe thread The chamber drain water is not under pressure and is fed by gravity Therefore it must empty into an open floor drain Alternatively the chamber drain can empty into a condensate pump You can purchase a condensate pump from suppliers such as Grainger www grainger com Input Power Configuration This chamber can be easily configured for operation from a 208 V 60 Hz or 230 V 240 V 60 Hz 3 Phase nominal input Other input voltages and 50 Hz operation are available as special options
28. system and are NOT connected TestEquity does NOT recommend using the Series F4 alarm function as the main protection device The independent EZ Zone Limit Controller functions as the main protection device The Series F4 Temperature Controller has been properly configured by TestEquity to match the chamber s system requirements and to perform optimally over a wide range of operating conditions Improper modifications to these setup values can result in erratic performance and unreliable operation Setup examples in the Series F4 User s Manual are NOT applicable to this chamber Do not attempt to modify the setup values unless you thoroughly understand what you are doing If there is any doubt please call TestEquity before proceeding NEVER select Full Defaults in the Series F4 Controller s Factory Test Menu This will erase all the correct values which are documented in the Series F4 Temperature Controller Setup Parameters section of this manual The EZ Zone Limit Controller has been properly configured by TestEquity to match the chamber s system requirements Improper modifications to these setup values can result in unreliable and unsafe operation Do not attempt to modify the setup values unless you thoroughly understand what you are doing The correct values are documented in the EZ Zone Limit Controller Setup Parameters section of this manual Always verify that the Limit Controller s high and low limits
29. the workspace temperature approaches and reaches the temperature set point Cool Light The Cool Light will illuminate when the Temperature Controller turns on the cooling valve to maintain the workspace temperature The Cool Light will cycle on off as the workspace temperature approaches and reaches the temperature set point TestEquity 3007C Temperature Chamber Page 3 3 Chapter 3 Operation Loading the Chamber IN WARNING IN WARNING IN WARNING IN WARNING IN WARNING IN CAUTION CAUTION Port Plugs Do NOT put items in the chamber that could burn or explode at high temperatures This chamber uses open wire heating elements which generate surface temperatures over 1000 F This is NOT an explosion proof chamber Do NOT put items in the chamber which can emit corrosive vapors or substances This chamber is NOT a curing oven There are NO provisions for venting fumes The chamber door must remain closed while the chamber is operating If you need to open the door while the chamber is operating wear safety goggles to prevent the high velocity airflow from blowing particles or objects into your eyes This chamber operates at extreme temperatures Avoid contact with air objects and surfaces that are hot or cold to prevent severe burns or frostbite Protective gloves are recommended If your test sample is energized it may be capable of raising the workspace temperature beyond safe limits This coul
30. 50 mA sink max Internal supply 5 VDC 80 mA Communications EIA 232 and EJA 485 serial communications with Modbus RTU protocol Safety amp Agency Approvals UL c UL 916 listed File E185611 CE to EN61010 NEMA 4X and IP65 CE EMC to EN50082 2 CE EMC to EN55011 Displays Process 5 seven segment red LED Interface Display 4 line high definition green LCD selectable C or F Data Retention Retention upon power failure via nonvolatile memory seven years for battery backed RAM Note Total system accuracy in the chamber includes thermocouple wire accuracy Thermocouple wire accuracy is 1 C or 0 75 of reading whichever is greater Therefore total system accuracy over the chamber s operating range can be as much as 2 66 C although the typical accuracy is often better than 1 0 C Page 7 2 TestEquity 3007C Temperature Chamber Chapter 8 Maintenance Chapter 8 Maintenance WARNING Maintenance must be performed by properly trained personnel only Preventive Maintenance Intervals Daily or As Needed e Clean chamber interior and exterior e Listen for abnormal noise or vibration Every 3 Months e Inspect the door seal e Inspect the refrigeration machinery compartment e Check the low stage refrigeration charge e Check the high stage refrigeration charge e Verify the chamber performance Every 6 Months e Inspect the electrical compartment e Clean the condenser Every 12 Months e Verify th
31. N only the F4 Controller and Limit Controller are operational When the Conditioning Switch is ON the chamber s conditioning system will function to maintain the temperature humidity set point The Conditioning Switch does not illuminate Conditioning Switch Event 1 Mode When the Conditioning Switch is in the Event 1 position you can enable and disable all chamber functions through Event 1 Digital Output 1 of the F4 Controller When the Conditioning Switch is in the Event 1 position and Event 1 on the F4 Controller is Off all chamber functions are disabled If Event 1 is On all chamber functions are enabled See page 4 7 for instructions on how to control the events in manual mode In profile mode Event is named CONDITION CAUTION Remember to set DigitalOut 1 Event Output1 to On in static set point mode when the chamber is to be operational In this mode the Modbus register for Digital Output 1 is 2000 emember to set to Un n the profile event prompt for a CAUTION R b CONDITION to On in the profil prompt for all programmed steps when the chamber is to be operational Page 3 2 TestEquity 3007C Temperature Chamber Chapter 3 Operation Light Switch The Light Switch controls the workspace light The Light Switch illuminates when it is ON Heat Light The Heat Light will illuminate when the Temperature Controller turns on the heater to maintain the workspace temperature The Heat Light will cycle on off as
32. Page 4 13 TestEquity 3007C Temperature Chamber Chapter 4 Temperature Controller Digital Event Outputs The Temperature Controller has digital outputs which can be configured as Event Outputs to turn remote devices on and off There are three Event Outputs which are available for customer use The remaining events are used for chamber system functions The Event Outputs are accessed from the Temperature Controller Main Page Event Function Event 1 System Enable CONDITION Works when Conditioning Switch is in the Event 1 position Event 2 LN2 Boost Enable LN2 Must be ON to enable the optional LN2 system Event 3 Available for customer use Event 4 Available for customer use Event 5 Available for customer use Event 6 Boost Heat function indicator only Event 7 Boost Cool function indicator only Event 8 Compressor Enable indicator only To control Event Outputs 1 through 5 1 Press the Aor Y key to position the Cursor next to the DigitalOut prompt 2 Press the key once You will see Choose Event Output prompt in the lower display 3 Press the Aor Y key to position the Cursor next to the EventOutput prompt which you want to change You will be able to select from EventOutput1 through EventOutput5 4 Press the key once to select the desired EventOutput Then press the Aor Y key to select On or Off 5 Press the key once to return to the Choose Event Output prompt 6 Press the key once to return back to t
33. Remaining P8 Digital Outputs P9 Power 1 P10 Digital Inputs P11 Date P12 Time P13 Custom Message 1 P14 16 None Static Page Menu Main Page Go to Setup Static Message Message 1 TESTEQUITY 3007C TestEquity 3007C Temperature Chamber Page 8 15 Chapter 8 Maintenance Series F4 Operations Parameters PID Set Channel 1 Menu Main Page Go to Operations Edit PID PID Set Channel 1 PID Set 1 5 Proportional BandA 5 0 C 9 0 if F Reset A 0 05 min Rate A 0 00 min Dead Band A 0 0 C Proportional BandB 5 0 C 9 0 if F Reset B 0 05 min Rate B 0 00 min Dead Band B 0 0 Alarm Setpoints Menu Main Page Go to Operations Alarm Setpoints Alarm1 Alarml Low SP 75 0 C 103 0 if F Alarml High SP 175 0 C 347 0 if F Main Page Go to Operations Alarm Setpoints Alarm2 Alarm2 Low SP 75 0 C 103 0 if F Alarm2 High SP 175 0 C 347 0 if F NOTE The alarm outputs of the Temperature Controller are NOT connected to the chamber s safety system TestEquity does NOT recommend using the Temperature Controller s alarm function as the main protection device Series F4 Set Lockout Parameters The Series F4 Controller has several levels of security to prevent unauthorized users from changing critical configuration parameters Only the Set Point and Profile menus have Full Access TestEquity has configured all other menus to Password and have protected them with a pass
34. TI 300096 1 ea Indicator Panel 240V Neon SoLiCo S412 2 1 N2 PL1 200026 1 ea Indicator Panel 120V Neon SoLiCo S412 2 1 N1 PL2 200025 1 ea Relay Phase Control Crouzet DWRS220A PVRI 200067 1 ea Resistor 10 k 5 W Vishay Dale 71 RH00510K00FE02 Ri 222334 1 ea Solid State Relay 25A Siemens SSRT 240D25 SSRI 2 200021 2 ea Solid State Relay 10A Omron G3NE 210T US DC5 SSR3 6 200129 4 ea Solid State Relay 5A Omron G3NA 205B DC5 24 SSR7 9 200032 3 ea Switch SPST Rocker Carlingswitch LRA211 RA B 125N SWl 200023 1 ea Switch ON OFF ON Carlingswitch RC911 RA B 0 N XLR1 SW2 200275 1 ea Temperature Controller Watlow F4SH CKA0 01AE TCR1 200001 1 ea High Low Limit Controller Watlow PM6L1AJ AAAABBS TCR2 200301 1 ea Timing Module Airotronics THCU30SC TMI 200287 1 ea Control Transformer Hammond PH350MLI TRI 200219 1 ea Chart Recorder Option Recorder 1 Pen 10 Honeywell DR4301 0000 G0100 RCD1 200094 1 ea Chart paper 90 to 210 C Honeywell 24001660 034 200095 1 ea Chart paper 130 to 410 F Alternate Honeywell 24001660 033 200096 1 ea Pen Purple Six Pack Honeywell 30735489 007 200097 1 ea Page 8 12 TestEquity 3007C Temperature Chamber Chapter 8 Maintenance Major Refrigeration Parts Description Mfr Mfr Part No Ref Part Qty UOM Capillary Tube 0 050 x 12 J B TC 50 21 100019 1 ea Cascade Condenser Flat Plate CH3 1
35. achinery compartment How to check the low stage refrigerant charge 8 3 How to check the high stage refrigerant charge 8 3 How to verify the chamber performance How to inspect the electrical compartment 8 5 How to clean the condenser 8 5 How to verify the calibration Theory of Operation Overview 8 6 8 6 Heating System 8 6 Refrigeration System 8 6 Troubleshooting Refrigeration System Charging Instructions R 404A High Stage Charge 8 8 8 10 8 10 R 508B Low Stage Charge 8 10 Recommended Spare Parts Major Electrical Parts Major Refrigeration Parts LN2 Parts opt 0018 General Parts Series F4 Temperature Controller Setup Parameters Series F4 Setup Parameters 8 11 8 12 8 13 8 13 8 13 8 14 8 15 Series F4 Operations Parameters 8 16 Series F4 Set Lockout Parameters 8 16 EZ Zone Limit Controller Setup Parameters Chapter 9 Warranty Chapter 10 Drawings 8 17 9 1 10 1 Chapter 1 Safety Chapter 1 Safety Instructions Introduction Follow all CAUTION notices to prevent damage to the chamber or your test sample Failure to follow all CAUTION notices may void your warranty CAUTION may also indicate a potentially hazardous situation which if not avoided may result in minor or moderate personal injury WARNING indicates a potentially hazardous situation which if not avoided could result in death or serious injur
36. amber Chapter 8 Maintenance Series F4 Setup Parameters System Menu Main Page Go to Setup System GSB 1 Source Guar Soak Band 1 Current Time Current Date PID Units F or C Show F or C Ch1 Autotune SP Input 1 Fail Open Loop Chl Power Out Time Power Out Action Input 1 3 0 C 5 4 if F local time local date US Reset Rate C Yes Upper Display 90 0 Off 10 Sec Continue Analog Input Menu Main Page Go to Setup Analog Input1 Sensor Type Decimal SP Low Limit SP High Limit Calibration Offset Filter Time Error Latch Thermocouple T 0 0 75 0 C 103 0 if F 175 0 C 347 0 if F 0 0 1 0 sec Self Clear Digital Input Menus Main Page Go to Setup Digital Input 1 4 Name Function No Off Control Output Menus Main Page Go to Setup Control Output 1A Function Choose Cycle Time Enter Cycle Time Hi Power Limit Low Power Limit Heat Fixed Time 3 0 sec 100 0 Main Page Go to Setup Control Output 1B Function Choose Cycle Time Enter Cycle Time Hi Power Limit Low Power Limit Cool Fixed Time 6 0 sec 100 0 Alarm Output Menus Main Page Go to Setup Alarm Output 1 2 Name No Alarm Type Process Source Input 1 Latching Alarm Self Clears Silencing Yes Hysteresis 1 7 C 3 0 if F Alarm Sides Both Alarm Logic Open on Alarm Show Message Yes on Main Page NOTE The alarm outputs of the Temperature Control
37. amber performance How can I modify the chamber to cool faster Liquid Nitrogen LN2 can be used to provide faster cooling rates or greater cooling capacity with heavy or energized loads It does NOT provide infinite cooling capability For example with a 25 pound load and a range of 85 C to 40 C the chamber will cool at 8 C minute without LN2 and 13 C minute with LN2 However it cannot transform the chamber into a shock chamber If this chamber was not ordered with LN2 Boost Cooling then you can retrofit the chamber by ordering Option 0018 You CANNOT use CO2 Liquid Carbon Dioxide in this system and we do not sell a CO2 Boost System due to potential reliability issues associated with the unintended formation of dry ice TestEquity 3007C Temperature Chamber Page 6 1 Chapter 6 Frequently Asked Questions Why is there water ice snow in the chamber Any time the ambient air is subjected to temperatures below the dew point moisture will condense out of the air The effect is ice or frost during low temperature operation When the chamber is heated above 0 C the ice or frost will turn into water To avoid moisture condensation make sure the port plugs are inserted at all times Also avoid opening the chamber door while the chamber is operating at temperatures below room ambient When a low temperature test is completed warm the chamber to at least room ambient before opening the chamber door and before removing your
38. ant causes it to boil or vaporize absorbing heat which provides a cooling effect The refrigerant vapor travels through the suction line to the compressor suction inlet The compressor takes the low pressure vapor and compresses it increasing both the pressure and the temperature The hot high pressure vapor is forced out of the compressor discharge valve and into the condenser As the high pressure vapor passes through the condenser it is cooled by a fan which blows ambient air Page 8 6 TestEquity 3007C Temperature Chamber Chapter 8 Maintenance across the finned condenser surface The vapor condenses into a liquid and the cycle is repeated During heavy load conditions as determined by the discharge pressure of the low stage pressure control PS3 energizes solenoid valve SV3 which allows an additional expansion valve to feed the cascade condenser inlet for increased capacity The Low Stage uses refrigerant R 508B High pressure liquid refrigerant is fed from the condenser circuit ofthe cascade condenser through the filter drier and liquid line solenoid valve to the thermostatic expansion valve The thermostatic expansion valve feeds the finned evaporator coil which is located in the air plenum where heat is absorbed to provide a cooling effect within the chamber The refrigerant vapor travels through the suction line to the compressor suction inlet The compressor takes the low pressure vapor and compresses it increasing both the pressu
39. are set to temperatures that are appropriate for your test sample TestEquity 3007C Temperature Chamber Page 1 3 Chapter 1 Safety IN CAUTION IN CAUTION IN WARNING IN WARNING IN WARNING IN WARNING IN WARNING Page 1 4 If your test sample is energized it may be capable of raising the workspace temperature beyond safe limits This could occur if your test sample exceeds the live load rating of the chamber or ifthe chamber s refrigeration system fails This chamber has a set of contacts that can be used to remove power to your test sample ifthe Limit Controller s temperature limits are exceeded To prevent damage to your test sample and the chamber s compressors do not exceed the live load rating of the chamber Do NOT put items in the chamber that could burn or explode at high temperatures This chamber uses open wire heating elements which generate surface temperatures over 1000 F This is NOT an explosion proof chamber Do NOT put items in the chamber which can emit corrosive vapors or substances This chamber is NOT a curing oven There are NO provisions for venting fumes The chamber door must remain closed while the chamber is operating If you need to open the door while the chamber is operating wear safety goggles to prevent the high velocity airflow from blowing particles or objects into your eyes This chamber operates at extreme temperatures Avoid contact with air objects and su
40. ay then you should purchase critical spare parts in advance Although most parts are standard and available from a variety of local distributors some parts are either harder to find or custom The following is a list ofthe kinds of parts that you may want to purchase in advance Electrical Parts Contactors Relays Fuses Heat Limiter Circulator Motor and Fan Switches Refrigeration Parts Solenoid Valves Expansion Valves Regulator Valves TestEquity 3007C Temperature Chamber Page 8 11 Chapter 8 Maintenance Major Electrical Parts Description Mfr Mfr Part No Ref Part Qty UOM Audible Alarm Floyd Bell MC 09 201 Q AL1 200005 1 ea Arc Suppressor ITW Paktron 104MACQRL150 AS1 2 5 200296 3 ea Contactor 3 P 304 Hartland HCC 3XT02SX C1 3 200245 3 ea Relay Octal DPDT 10A 120VAC Idec RR2P UCAC120 CRI 3 4 200292 3 ea Relay SPDT 5A 120VAC Omron G2R 1 T AC120 CRS 200160 1 ea Disconnect Switch 3 Pole 45A ABB OT63F3 DSW 200281 1 ea Fuse 4A Bussman FNQ R 4 Fl 2 200083 2 ea Fuse 3A Bussman FNM 3 F3 200186 1 ea Fuse 20A Bussman FNQ R 20 F4 6 200242 3 ea Fuse 20A Bussman LP CC 20 F7 12 200206 6 ea Circulator Motor 230V 1725 RPM CUSTOM CUSTOM FM3 4 222330 2 ea Heat Limiter Thermodisc G5A 01 240C HL1 3 200070 3 ea Heater Air CUSTOM CUSTOM HTI 222340 1 ea Appliance Light 40W 120V Generic Generic L
41. ct on chamber functionality and performance Fixtures should be designed for easy removal to permit maintenance and cleaning of the chamber The chamber liner should never be drilled or screwed into This will compromise the integrity of the liner and permit moisture migration due to condensation into the insulation which will eventually impact performance and lead to premature rusting of the outer cabinet Fixtures should be constructed of stainless steel This also applies to all screws and fasteners All welds should be passivated To prevent rust and corrosion never use iron or mild steel even 1f it is painted or plated Aluminum may be used However since the specific heat of aluminum is double that of steel it represents a greater load and will have more impact on the chamber performance Make sure that all connectors wiring pc boards and auxiliary components can withstand the temperature extremes that they will be subjected to In some cases these components may not be able to last after repeated tests and should be considered expendable TestEquity 3007C Temperature Chamber Page 3 5 Chapter 4 Temperature Controller Chapter 4 Temperature Controller Introduction The Series F4 Temperature Controller can function as either a single set point controller static mode or as a programmable profile controller A four line LCD display facilitates setup and programming and presents informative messages about status error a
42. ctrical codes require permanent wiring for this type of equipment If used as a portable device a flexible wire with a plug may be acceptable but local codes may limit the length to 6 feet TestEquity recommends that the appropriate method for your installation be determined by a qualified electrician who is familiar with industrial plant wiring I need to send the chamber outside North America Will it work with their power Outside North America most countries have 50 Hz Standard three phase voltage systems in most 50 Hz countries are typically 380 V or 400 V Please call TestEquity for details on voltage reducing transformers for 50 Hz operation Note that the cooling performance will be reduced by 17 at 50 Hz Why does my chamber heat or cool slower than the published specifications Performance is significantly affected by the characteristics of your test sample Factors include size weight material shape and power dissipation if energized The test sample should be placed in the chamber in a manner that allows for air circulation You should not place the test sample directly on the chamber floor It should be placed on the shelf Multiple test samples should be distributed throughout the chamber to ensure even airflow and minimize temperature gradients If necessary additional shelves should be used to evenly distribute the load You can determine if the chamber is operating properly by following the procedure in How to verify the ch
43. d occur if your test sample exceeds the live load rating of the chamber or if the chamber s refrigeration system fails This chamber has a set of contacts that can be used to remove power to your test sample ifthe Limit Controller s temperature limits are exceeded To prevent damage to your test sample and the chamber s compressors do not exceed the live load rating of the chamber Live Load Capacity for Model 3007C Temp 23 C 0 C 40 C 55 C 65 C Watts 3700 W 3500 W 2700 W 2300 W 1800 W Foam port plugs are provided with a gray silicone surface on one side The port plug must be inserted with the gray silicone surface facing the inside of the chamber Port plugs should be considered expendable and be replaced when they no longer provide a good seal Page 3 4 TestEquity 3007C Temperature Chamber Chapter 3 Operation Performance Considerations The performance of all chambers is significantly affected by the characteristics of your test sample Factors include size weight material shape and power dissipation if energized The test sample should be placed in the chamber in a manner that allows for air circulation The air plenum is located on the back wall ofthe chamber where air is sucked in from the bottom and exits from the top You should not place the test sample directly on the chamber floor It should be placed on the shelf Multiple test samples should be distributed throughout the chamber to ensure even air
44. e Controller PID values have been properly configured by TestEquity to match the chamber s system requirements and to perform optimally over a wide range of operating conditions Improper modifications to these values can result in erratic performance and unreliable operation Do not attempt to modify the PID values unless you thoroughly understand what you are doing Setup examples in the Series F4 User s Manual are NOT applicable to this chamber Ifthere is any doubt please call TestEquity before proceeding The correct values are documented in the Series F4 Temperature Controller Setup Parameters section of this manual ZA CAUTION The Autotune PID function is not appropriate for use in this chamber Using this function will result in tuning values that will not work correctly Setup Page The Setup Page provides access to menus for configuring the controller hardware TestEquity has configured the security to require a password for access to the Setup Page However there will be times when entry into these menus is necessary For example you may need to gain access to Setup Page in order to change from C to F display or to change the time or date You must call TestEquity at 877 512 3457 or 805 480 0638 to obtain the password ZA CAUTION The Series F4 Temperature Controller setup values have been properly configured by TestEquity to match the chamber s system requirements and to perform optimally over a wide range of o
45. e calibration TestEquity 3007C Temperature Chamber Page 8 1 Chapter 8 Maintenance Maintenance Procedures How to clean the chamber interior and exterior e Wipe or vacuum out all debris e Clean surfaces with a damp cloth mild detergent or stainless steel cleaner Avoid cleaners that are abrasive or leave a residue Do NOT use steel wool e If you clean the interior with something other than water you may want to operate the chamber at high temperature approximately 125 C after cleaning This helps to bake out any residue Remove the port plugs to permit the residual vapors to escape e Clean the silicone door gaskets with a damp cloth or mild detergent e Clean the exterior painted surfaces with a damp cloth or mild detergent If you are using a detergent test a small inconspicuous area to make sure it does not damage the finish How to listen for abnormal noise or vibration You should become familiar with normal operating noises Being able to recognize changes from normal operating noises can be a valuable way to identify problems and prevent further damage Examples of noises to be aware of include e Circulator motor and fan noises with compressors off e Compressor start up and running noises sequential starting of compressors e Condenser fan noises e Relay and valve cycling noises when cool light is cycling How to inspect the door seal The door has two silicone gaskets to minimize thermal losses a
46. eliable operation Setup examples in the Series F4 User s Manual are NOT applicable to this chamber The correct values are documented in the Series F4 Temperature Controller Setup Parameters section of this manual RS 232C The F4 Temperature Controller has an RS 232C interface A DB 9 connector is located on the rear panel It is wired to accommodate a null modem cable To communicate with the controller from a PC you need to run software that uses the Modbus RTU protocol Each controller function has a register number which can be read or written to when applicable These registers are listed Chapter Seven of the Series F4 User s Manual RS 232C Modbus programming resources can be downloaded from http www testequity com RS232 Common Modbus Registers e The actual chamber temperature reading is Modbus register 100 Input 1 Value e The static temperature set point is Modbus register 300 Set Point 1 e The temperature set point during a profile is Modbus register 4122 Set Point 1 Current Profile Status e The decimal points are implied For example 1005 is actually 100 5 and 230 is 23 0 GPIB optional The optional GPIB interface model TE 1052 consists of an external converter box that connects to the chamber s RS 232C interface Model TE 0003 is internal to the chamber and the GPIB connector replaces the RS 232C connector GPIB programming resources and LabVIEW drivers can be downloaded from http
47. er stabilization Live Load Capacity 23 C 0 C 20 C 40 C 55 C 65 C 3700W 3500W 3300W 2700W 2300W 1800 W Cooling Rate Compressors Only empty chamber End Temp Start Temp to gt 23 C 0 C 40 C 55 C 65 C 73 C 85 C 18 C min 14 C min 12 C min 11 C min 10 C min Ultimate Cooling Rate Compressors Only 25 Ib static aluminum load End Temp Start Temp to gt 23 C 0 C 40 C 55 C 65 C 73 C 85 C 14 C min 10 C min 8 C min 7 C min 6 C min Ultimate Cooling Rate LN2 Boost and Compressors empty chamber 20 C minute from 85 C to 40 C Cooling Rate LN2 Boost and Compressors 25 Ib static aluminum load 13 C minute from 85 C to 40 C Heat Up Ramp Rate empty chamber 17 C minute from 40 C to 85 C Heat Up Ramp Rate 25 Ib static aluminum load 12 C minute from 40 C to 85 C NOTE Ramp rates are measured at the control sensor after a 2 hour soak at the respective start temperature with an empty chamber Measured with setpoint set beyond the start and end temperatures Ramp rates do not include the effect of proportional band when approaching setpoint Input Power Requirements 230 V 10 60 Hz 3 PH Max Current Draw 39 A Recommended Service 50 A 208 V 5 10 60 Hz 3 PH Max Current Draw 35 A Recommended Service 45 A Input may be configured for nominal 208 V or 230 V in the field by changing jumpers Call for other voltages or 50 Hz operation Workspace Dimens
48. es control power to the chamber The Front Panel Lights provide indication of heat and cool functions The Limit Controller is a protection device It turns the chamber OFF if the workspace temperature exceeds either a high temperature or low temperature limit set point The Temperature Controller controls the temperature of the chamber It can function as either a single set point controller or as a programmable profile controller The Temperature Controller automatically turns the refrigeration system on or off based on the demand for cooling NOTE If your chamber was ordered with the F4T Touch Screen Controller see the separate manual for that controller CAUTION This chamber has a crankcase heater to protect the high stage compressor The chamber must be connected to the power source AND the Main Disconnect Switch must be ON for 3 hours prior to operating the chamber Although it may be safe to use the chamber immediately this procedure ensures the longest possible life for the high stage compressor if the chamber has been removed from the power source for more than 24 hours Summary of Chamber Operation Turn the Main Disconnect Switch ON Enter the appropriate high and low temperature safety limits on the Limit Controller Enter the desired temperature set point or program on the Temperature Controller Load your test sample in the chamber Turn the Conditioning Switch ON POE S OS TestEquity 3007C Temperature Chamber Page
49. f the current step Status of the event outputs to 8 An 8 indicates when cooling system is ON The of throttle of the heat positive number or cool negative number output Status of the digital inputs 1 through 4 Real time clock date Real time clock time Identifies the chamber model number Access to Operations Page Access to Profiles Page Access to Setup Page Not displayed if running a profile Access to Factory Page Not displayed if running a profile TestEquity 3007C Temperature Chamber Page 4 3 Chapter 4 Temperature Controller System Enable Function The chamber can be configured to enable or disable all chamber functions through Event 1 Digital Output 1 in the F4 Controller The Conditioning Switch needs to be in the Event 1 position This configuration may be desirable if you want to turn off all chamber function at the end of a programmed profile or through the communications interface All chamber functions will be disabled if Event 1 is Off If Event 1 is On all chamber functions will be enabled NOTE The Modbus register to program Digital Output 1 in static set point mode is 2000 NOTE In the Profile Create and Edit menus Digital Output 1 is named CONDITION Remember to set CONDITION to On in all programmed steps when the chamber is to be operational To Enable or Disable all chamber functions in static set point mode 1 The F4 Temperature Controller must first be on the Main Page P
50. flow and minimize temperature gradients If necessary additional shelves should be used to evenly distribute the load Verify that the temperature gradients are within acceptable limits by measuring the chamber temperature at strategic points using a multipoint thermocouple meter or data logger You may find that the temperature throughout the chamber is even but always different from what the temperature controller indicates The correct way to adjust what the temperature controller displays compared to what is measured at some point other than the controller s sensor is with the Calibration Offset parameter NOT by recalibrating the controller Avoiding Moisture Any time the ambient air is subjected to temperatures below the dew point moisture will condense out of the air The effect is ice or frost during low temperature operation or water when maintaining over 0 C and cooling is required To avoid moisture condensation make sure the port plugs are inserted at all times Also avoid opening the chamber door while the chamber is operating at temperatures below room ambient When a low temperature test is completed warm the chamber to at least room ambient before opening the chamber door and before removing your test sample Internal Test Fixtures Some applications require internal fixtures to support test samples and provide a convenient method of connecting wires and sensors Fixtures must be designed to minimize their impa
51. g the vacuum jacket by approximately six inches on the other side Support all liquid nitrogen carrying lines with ridged hangers to prevent excessive flexing when cold Chamber Relief Vent Considerations with Liquid Nitrogen For installation in enclosed areas of any size or when ventilation in the room is limited e The workspace vent at the top of the chamber must be piped outside of the building to atmosphere with a backpressure free vapor tight insulated tube e The enclosed room must be adequately ventilated to prevent the buildup of nitrogen gas due to leakage pressure relief valve operation or chamber door opening e An automatic Low Level Oxygen Alarm must be installed to alert operators of potentially dangerous conditions within the enclosed room These devices are available from a number of sources An example is the Chemgard Gas Monitor from MSA Mine Safety Appliances Company in Pittsburgh PA 800 672 2222 www msanorthamerica com For installation in large factory areas with open doors and adequate ventilation certified by a qualified Mechanical Engineer e The vent at the top of the chamber can discharge directly into the factory If desired the vent can be extended upward approximately two feet with a length of insulated tubing to prevent frost buildup on the top of the chamber TestEquity 3007C Temperature Chamber Page 2 5 Chapter 3 Operation Chapter 3 Operation Introduction The Front Panel Switch
52. gin controlling Heat Light cycles ON OFF within approximately 3 minutes 6 The chamber temperature should slowly increase and stabilize to 85 C It should NOT overshoot beyond 85 C by more than a few tenths of a degree and the compressors should NOT need to turn ON in order to maintain 85 C 7 After stabilization the chamber temperature should vary no more than 0 5 C or a total of 19 8 Let the chamber stay at 85 C for two hours After two hours at 85 C set the Temperature Controller Set Point to 65 C 10 The compressor should turn ON within a few seconds and the Heat Light should be OFF After another 30 seconds the Cool Light should be ON continuously 11 The chamber should cool down to about 60 C and begin controlling Cool Light cycles ON OFF within approximately 15 minutes 12 The chamber temperature should slowly decrease and stabilize to 65 C It should NOT undershoot beyond 65 C by more than a few tenths of a degree and the compressors should NOT need to turn OFF in order to maintain 65 C 13 After stabilization the chamber temperature should vary no more than 0 5 C or a total of IPG 14 Set the Temperature Controller Set Point to 23 C The chamber should begin to heat up The compressors should turn off within approximately 1 minute 15 This concludes the chamber performance verification tests 16 Let the chamber heat up to 23 C before turning the Master Switch OFF A eee oe a
53. he Main Page Event Relays There are three solid state relays available to control AC operated devices such as power to a test sample The solid state relays are rated for 24 to 240 VAC 5 0 Amps Connecting to the Event Relays 1 Turn the Main Disconnect switch to the OFF position Remove the lower door retaining screw located on the right side Open the lower door 2 3 The Event Relays are located on the floor ofthe chamber cabinet towards the left side 4 The event outputs are just switches You must provide power from an external source 5 A 1 2 inch conduit hole is provided on the left side of the lower door to route your wires through Use the appropriate wire cable management fittings Page 4 14 TestEquity 3007C Temperature Chamber Chapter 4 Temperature Controller Operations Page The Operations Page provides access to menus for control tuning PID and controller alarms TestEquity has configured the security to require a password for access to all parameters in the Operations Page You must call TestEquity at 877 512 3457 or 805 480 0638 to obtain the password CAUTION The Series F4 Temperature Controller Alarm functions are NOT used in the chamber s safety system and are NOT connected TestEquity does NOT recommend using the Series F4 alarm function as the main protection device The independent EZ Zone Limit Controller functions as the main protection device A CAUTION The Series F4 Temperatur
54. heater circuits at 240 C The master heat contactor C1 provides a power interlock for the heaters circulator fan motor and the control system C1 is controlled by both the Master Switch the safety relay CR3 and the phase control relay PCR1 CR3 is controlled by the temperature limit controller TCR2 If either the high or low temperature safety limits are exceeded TCR2 turns off CR3 which turns off C1 PCR1 will disable CR1 if the input power phase sequence is incorrect Refrigeration System Cooling is accomplished by a cascade refrigeration system A cascade refrigeration system consists of two interdependent refrigeration systems The low stage provides cooling to the chamber interior through a finned evaporator coil which is located in the air plenum The high stage provides cooling to the cascade condenser The cascade condenser is a heat exchanger that has one circuit which is the evaporator of the high stage and another circuit which is the condenser of the low stage The high stage uses refrigerant R 404A High pressure liquid refrigerant is fed from the condenser through the liquid line filter drier and sight glass to the thermostatic expansion valve The thermostatic expansion valve controls the feed of liquid refrigerant to the evaporator circuit of the cascade condenser and by means of an orifice reduces the pressure of the refrigerant to the evaporating or low side pressure The reduction of pressure on the liquid refriger
55. ights up Reverse two of the input lines Control fuse F3 open Likely cause is shorted solenoid coil on SV1 or SV2 Does not heat up at all If controller light 1A is ON circulator fan is ON the Heat light is OFF If controller light 1A is ON circulator fan is ON the Heat Solid State Relay SSRlor SSR2 is defective At least two Heat Limiters HL are open light is ON Heats up too slow Does not meet published Chamber interior is overloaded specifications Port plug is not in port Verify that input voltage is within tolerance One heat limiter HL or one heater winding is open F4 Controller s Boost Heat output is misconfigured Heat is on all the time If temperature controller light 1A is OFF the Heat light is ON Solid State Relay SSR1 or SSR2 is defective Heater is shorted to chassis Does not cool at all R 404A pressure switch DPS1 trips If temperature controller light 1B is ON the Cool light is OFF both compressors are OFF If temperature controller light 1B is ON the Cool light is ON both compressors are ON Trips shortly after turn on Trips after operating for a while Pressure switch DPS1 or DPS2 is tripped Solenoid valve SV1 may be defective in closed position Ambient temperature may be too high Low charge leak Dirty condenser inadequate clearance from back of chamber to the wall R 404A hot gas bypass regulator may be defective or set too low
56. ions 24 W x 21 H x 24 D 7 cubic feet Outside Dimensions 33 W x 79 H x 54 25 D nominal Door latch adds 3 to width on right side may be removed for move in Min Installed Clearance 12 from the left and right side 24 from the rear Access Ports 4 Port on left and right side two total Supplied with foam plugs Weight 1 200 pounds Heat of Rejection 27 500 BTUH NOTE Performance is typical and based on operation at 23 C 73 F ambient and nominal input voltage This product is designed for use in a normal conditioned laboratory Operation at higher ambient temperatures may result in decreased cooling performance Additional ports and shelves will also affect performance Operation above 30 C 85 F or below 16 C 60 F ambient is not recommended TestEquity 3007C Temperature Chamber Page 7 1 Chapter 7 Specifications F4 Temperature Controller Specifications Specifications as configured for the TestEquity 3007C Chamber Accuracy amp Sensor Conformity 1 55 C above 50 C 1 66 C below 50 C Stability 0 1 C C rise in ambient Digital Inputs Four Contact closure or de voltage 10 kQ impedance Retransmit Outputs Optional Two User selectable ranges 0 to 10 VDC 0 to 5 VDC 1 to 5 VDC 0 to 20 mA 4 to 20 mA Alarm Outputs Two Electromechanical relay Form C 2 A 20 VDC or 240 VAC max Digital Outputs 3 available for customer use Open collector output OFF 42 VDC Y 10 uA max ON 0 2 VDC
57. itfor COND LN2 3 4 5 6 7 H M S Rate SP Set Soak Profile Step Repeats Type SP 1 Ramp Time u gt On DEE RN LP F 00 00 01 23 0 1 No 2 Ramp Rate gt On gt gt gt gt gt gt 5 0 85 0 1 No 3 Soak u gt On gt gt gt gt gt gt 01 00 00 1 No 4 Ramp Rate gt On SP ee AA 5 0 400 0 1 No 5 Soak gt On PLA A a A 01 00 00 1 No 6 Jump gt gt Pig SBS Re PAL A Name 2 99 7 Ramp Rate gt On Ba PA BE gt gt Ee 5 0 23 0 1 No 8 Soak gt Off gt gt gt gt gt gt 00 00 01 1 No 9 End Idle 23 0 Step Description Establishes a recommended initialization step Goes to 23 C as quickly as possible Chamber is turned ON via Event 1 named CONDITION Goes to 85 C at a controlled rate of 5 C per minute Chamber is turned ON via Event 1 named CONDITION Will hold for 1 hour Chamber remains ON via Event 1 Goes to 40 C at a controlled rate of 5 C per minute Chamber is turned ON via Event 1 named CONDITION Will hold for 1 hour Test sample remains ON via Event 1 Jumps back to step 2 Repeats this 99 times for a total of 100 cycles After all cycles are completed goes to 23 C at a controlled rate of 5 C per minute Chamber is turned ON via Event 1 named CONDITION Chamber is turned OFF via Event 1 named CONDITION End of program Controller returns to a 23 C manual set point Chamber remains OFF via Event 1 named CONDITION WNo0 DAA Dn
58. ition If the limit is exceeded the Limit Controller will flash high limit or low limit in the upper display and in the lower display alternating with the actual chamber temperature in the upper display and in the lower display It will also shut down all chamber functions The Limit Controller cannot be reset until the temperature returns to within the limit set points Then you must press the RESET or EZ Key to resume normal operation Silencing the Audible Alarm Turning off the Conditioning switch on the chamber front panel lets you temporarily turn off the Audible Alarm even though the High or Low Limit condition may still exist Page 5 2 TestEquity 3007C Temperature Chamber Chapter 5 Limit Controller Protecting an Energized Test Sample If your test sample is energized it may be capable of raising the workspace temperature beyond safe limits This could occur if your test sample exceeds the live load rating of the chamber or if the chamber s refrigeration system fails This chamber has a set of safety contacts that can be used to remove power to your test sample if the Limit Controller s temperature limits are exceeded The safety contacts are rated as follows Resistive 10 A 250 VAC or 10 A 28 VDC Inductive 7 A 250 VAC To access the safety contacts 1 Turn the Main Disconnect Switch to the OFF position 2 Remove the lower door retaining screw located on the right side Open the lower door 3 Locate the
59. jects liquid refrigerant to cool the hot gas within safe limits The low stage discharge pressure is kept within safe limits with the discharge pressure regulator valve Ifthe discharge pressure exceeds 285 PSIG the discharge pressure regulator valve will dump refrigerant into the expansion tank This refrigerant is slowly returned from the expansion tank to the suction line through a capillary tube The expansion tank also provides sufficient volume in the system to keep the standby pressure also known as static or balance pressure when the system is off within safe limits Both the high and low stages each have a high low pressure switch which turns off the entire refrigeration system in the event of an out of limit condition The high stage compressor has a crankcase heater to prevent refrigerant from condensing in the oil when the compressor is off The temperature controller has internal logic to turn the compressors on if cooling is required to maintain the temperature set point The low stage compressor turns on 30 seconds after the high stage turns on through Timing Module TMI This reduces the system s starting current while allowing the cascade condenser to get cool before the low stage turns on TestEquity 3007C Temperature Chamber Page 8 7 Chapter 8 Maintenance Troubleshooting SYMPTOM CONDITION CAUSES Chamber completely Power is applied to chamber but Incorrect phase sequence inoperative nothing l
60. ler are NOT connected to the chamber s safety system TestEquity does NOT recommend using the Temperature Controller s alarm function as the main protection device Retransmit Output Menu if retransmit option is ordered Main Page Go to Setup Retransmit Output 1 Retransmit Source Set point 1 Analog Range 0 5V Low Scale 75 0 C 103 0 if F High Scale 175 0 C 347 0 if F Scale Offset 0 0 Main Page Go to Setup Retransmit Output 2 Retransmit Source Input 1 Analog Range 0 5V Low Scale 75 0 C 103 0 if F High Scale 175 0 C 347 0 if F Scale Offset 0 0 Digital Output Menu Main Page Go to Setup Digital Output 1 Name Yes Name Digital Out CONDITION Function Event Output Digital Output 2 Name Yes Name Digital Out LN2 Function Event Output Digital Output 3 4 5 Name No Function Event Output Digital Output 6 Name No Function Boost Heat Boost Power 50 Boost Heat Delay Time 1 sec Digital Output 7 Name No Function Boost Cool Boost Power 50 Boost Cool Delay Time 1 sec Digital Output 8 Function Compressor Comp On Power 2 Comp Off Power 0 Compressor Off Delay 60 sec Compressor On Delay 10 sec Communications Menu Main Page Go to Setup Communications Baud Rate 9600 Address 1 Custom Main Page Menu Main Page Go to Setup Custom Main Page Pl Current File P2 Current Step P3 Set Point 1 P4 Step Type PS Target SP1 P6 WaitFor Status P7 Time
61. mal operation or FA Lin an out of limit condition or the parameter whose value appears in the Up Down Keys O O T When in a menu scrolls through available options for any given prompt In other menus can change set points upper display and modify the upper display to a higher or lower value EZ Key RESET Key Advance Key O Resets the limit after a Returns to the Home Page or Advances through the trip condition has cleared Resets the limit after a trip parameter prompts condition has cleared Figure 5 1 Limit Controller Keys and Displays How to Set the High and Low Temperature Safety Limits 1 Press the O key once to get the prompt in the lower display This is the Low Limit Set Point prompt 2 Press the Aor Y key to enter the desired Low Limit Set Point in the upper display Make sure it is lower than your actual chamber temperature set point and at least below room temperature to prevent nuisance tripping 3 Press the O key once again to get the prompt in the lower display This is the High Limit Set Point prompt 4 Press the Aor Y key to enter the desired High Limit Set Point in the upper display Make sure it is higher than your actual chamber temperature set point to prevent nuisance tripping 5 Press the RESET Key to return to the Home Page The upper display will show the actual chamber temperature while the lower display will show as long as the limits are not exceeded Resetting an Out of Limit Cond
62. n to wait for this digital input you must specify On meaning the condition as configured in the Setup Page or Off meaning the opposite of that condition The digital inputs have been configured to Off by TestEquity so this option will not show unless reconfigured Guaranteed Soak step option The use of Guaranteed Soak in a profile is optional The Guaranteed Soak step requires the chamber temperature to be at the set point temperature within the Guaranteed Soak Band value before the time clock and the step activity proceeds The Guaranteed Soak Band is configured by TestEquity for 3 0 C and this can be changed in the System Menu Page 4 8 TestEquity 3007C Temperature Chamber Chapter 4 Temperature Controller How to Program a New Profile 1 Go to the Profiles Page Move the cursor down the Main Page to Go to Profiles then press the key Main Page gt Go to Profiles Go to Setup Go to Factory gt 2 Create a new Profile The cursor will be on Create Profile Press the gt gt key Main gt Profile__ gt Create Profile Edit Profile Delete Profile lt 3 Name the profile You can name your profiles for easy reference if desired Names can have up to 10 characters You can also use one of the default profile names ex Profilel and skip this step To name a profile e Press gt to enter the name space and the first position e Press the Aor Y to scroll through the alphabet and stop at the
63. nd alarm conditions Digital outputs profiles and alarms can be named for easy reference An Information Key gives you quick information about the pages menus parameters and values as well as error and alarm conditions if they occur The user interface is organized into five pages of menus NOTE If your chamber was ordered with the F4T Touch Screen Controller see the separate manual for that controller A CAUTION The Series F4 Alarm functions are NOT used in the chamber s safety system and are NOT connected TestEquity does NOT recommend using the Series F4 alarm function as the main protection device The independent EZ Zone Limit Controller functions as the main protection device CAUTION The Series F4 Temperature Controller has been properly configured by TestEquity to match the chamber s system requirements and to perform optimally over a wide range of operating conditions Improper modifications to these setup values can result in erratic performance and unreliable operation Do not attempt to modify the setup values unless you thoroughly understand what you are doing Setup examples in the Series F4 User s Manual are NOT applicable to this chamber If there is any doubt please call TestEquity before proceeding The correct values are documented in the Series F4 Temperature Controller Setup Parameters section of this manual A CAUTION NEVER select Full Defaults in the Series F4 Factory Test Men
64. nd moisture migration e Inspect the gaskets for dirt and tears e Repair minor tears with a high quality RTV silicone such as GE RTV167 e Check the integrity of the door seal by closing the door on a sheet of paper With the door closed slowly pull the paper You should feel the resistance getting lighter as the paper goes past the inner gasket Repeat this all around the door at several places e If the seal is not tight adjust the door latch The stainless steel catch on the bracket that is mounted to the chamber has slotted holes to permit adjustment e If the seal is still loose on the hinge side adjust the door hinge The hinges have slotted holes on the door side to permit adjustment Page 8 2 TestEquity 3007C Temperature Chamber Chapter 8 Maintenance How to inspect the refrigeration machinery compartment WARNING Wear safety goggles when inspecting the machinery compartment to protect against a refrigerant line which could break Turn the Main Disconnect Switch OFF Remove the side and rear panels Inspect for signs of refrigeration tubing abrasion Inspect for oil around refrigeration valves fittings and joints This may be a sign of leaks Inspect for loose hardware and tighten as required Di OT A Inspect for signs of insect or rodent infestation Yes it does happen How to check the low stage refrigerant charge The low stage refrigerant charge is checked by observing the standby pressure al
65. not be familiar with the microprocessor based controls This chamber should only be serviced by a qualified mechanic that is familiar with low temperature cascade refrigeration systems Call TestEquity to recommend one in your area or to check ifthe one you would like to use is qualified Can Should I put a filter in front of the condenser air inlet No TestEquity does not recommend this Just follow the maintenance procedures and clean the condenser fins periodically How often should I charge the refrigeration system This chamber uses a closed loop refrigeration system Just like your refrigerator at home it does not need periodic charging If the charge is low this means that there is a leak Leaks should be repaired before recharging What kind of Freon does the chamber use The word Freon is a DuPont registered trade name for their CFC based refrigerants and is incorrectly used as a generic term for refrigerants TestEquity chambers do not use CFC based refrigerants The high stage system uses R 404A which is also known as DuPont Suva HP62 The low stage system uses R 508B which is also known as DuPont Suva 95 TestEquity 3007C Temperature Chamber Page 6 3 Chapter 7 Specifications Chapter 7 Specifications Model 3007C Chamber Specifications Temperature Range 73 C to 175 C Control Tolerance 0 5 C Measured at the control sensor after stabilization Uniformity t1 0 C Variations throughout the chamber aft
66. ntroller are as shipped from TestEquity and only occurs in cool mode Re enter values as shipped from TestEquity Control parameters may need to be changed for your unique test conditions Control parameters may need to be changed for your unique test conditions R 508B hot gas bypass regulator may be defective or set too high R 508B expansion valve may be defective Compressors turn on and off too frequently If compressor control parameters in temperature controller were changed If compressor control parameters in temperature controller are as shipped from TestEquity Re enter values as shipped from TestEquity Control parameters may need to be changed for your unique test conditions Solenoid valve SV1 may be defective in open position Excessive noise and vibration when the compressor starts Chamber has been off for several hours or more and is not connected to source of power or main disconnect switch is off during that time Chamber has been off for several hours or more and is connected to source of power and main disconnect switch is on during that time The chamber must be connected to the power source AND the main disconnect switch must be on for 3 hours prior to operating the chamber Crankcase heater defective open TestEquity 3007C Temperature Chamber Page 8 9 Chapter 8 Maintenance Refrigeration System Charging Instructions WARNING Repai
67. om the electrical compartment Three tie points are provided on the side of the chamber to secure the input wiring with tie wraps 5 Connect the Hot input wires to terminals L1 L2 and L3 on the Main Disconnect Switch Connect the Ground wire NOT A NEUTRAL to the Ground terminal Phase Sequence This chamber has a protective circuit to ensure the proper input power phase sequence If the chamber does not function with the initial wiring hookup then reverse two of the input lines TestEquity 3007C Temperature Chamber Page 2 3 Chapter 2 Installation LN2 Liquid Nitrogen Installation Option 0018 Liquid Nitrogen Safety Notices WARNING Liquid nitrogen is extremely cold 190 C or 320 F It can cause severe burns frostbite or eye damage When handling liquid nitrogen containers or piping wear goggles for eye protection protective clothing and thick impervious gloves such as welder s leather WARNING The connecting tube must include a relief valve designed for use with liquid nitrogen if a manual or automatic isolation valve is present at your source of supply or at any point between the source and the connection point on the back of the 3007C Chamber This relief valve must be rated for at least 35 psig and less than 100 psig It is needed to prevent excessive pressure from developing when the nitrogen in the connecting line evaporates during off cycles Care should be exercised in sighting the relief valve
68. orage This will ensure that the chamber will be ready to operate when it is taken out of storage Ifthe chamber has a problem and is still under warranty these problems should be resolved before being placed into storage since the warranty period starts from the date of shipment The chamber should be stored in a conditioned environment Do not store it outside or where it will be subjected to dirt or excessive moisture I haven t used the chamber for a while Is there anything I should do to prepare it for operation Perform ALL the steps in the Preventive Maintenance Schedule before placing the chamber back into service This will ensure that nothing has been damaged and that a leak has not developed This chamber has a crankcase heater to protect the high stage compressor The chamber must be connected to the power source AND the Main Disconnect Switch must be ON for 3 hours prior to operating the chamber Although it may be safe to use the chamber immediately this procedure ensures the longest possible life for the high stage compressor if the chamber has been removed from the power source for more than 24 hours Can the person who services our air conditioning also service the chamber Probably not Most air conditioning mechanics are not familiar with low temperature cascade refrigeration systems While this chamber is relatively easy to maintain and repair most air conditioning mechanics do not have the necessary refrigerants and may
69. otal of 2 C when measured at least 2 away from the chamber interior walls These specifications are for an empty chamber The addition of a test sample may affect the temperature uniformity For example an energized test sample will produce a higher temperature near the sample Controller Accuracy This is the ability of the temperature controller to accurately display a temperature measurement when compared to a standard The controller display accuracy is 1 66 C However the total measurement accuracy in the chamber includes the thermocouple sensor wire accuracy Thermocouple wire accuracy is 1 C or 0 75 of reading whichever is greater Therefore total system accuracy over the chamber s operating range can be as much as 2 66 C although the typical accuracy is often better than 1 0 C Can I tilt the chamber to move it You should be able to tilt the chamber 45 degrees to move it After tilting it and moving it into place perform the steps as outlined in How to inspect the refrigeration machinery compartment and How to check the refrigerant charge before placing the chamber back into service to make sure that no damage has occurred Page 6 2 TestEquity 3007C Temperature Chamber Chapter 6 Frequently Asked Questions Pm not going to use the chamber for a while Is there anything I should do to prepare it for storage Perform ALL the steps in the Preventive Maintenance Schedule before placing the chamber into st
70. ough its own service personnel or an authorized agent In order to provide expeditious service TestEquity reserves the right to satisfy its limited warranty obligation by sending replacement parts to be installed by the Purchaser if they can be installed easily without special tools or training TestEquity reserves the right to satisfy this limited warranty by requiring the Purchaser to return the Equipment to TestEquity when such return is feasible TestEquity must initiate field service for in warranty claims Purchaser will not be reimbursed for labor if they initiate service on their own without prior approval from TestEquity Replacement parts must be supplied by TestEquity for in warranty claims Purchaser will not be reimbursed for parts they buy on their own without prior approval from TestEquity The following parts are excluded from this limited warranty and are sold as is or are considered expendable interior light bulb viewing window paint and cosmetic surface finishes and treatments port plugs and refrigerant This limited warranty shall extend in full to Equipment installed within continental United States and Canada For all other locations Purchaser is responsible for all labor costs for repairs or parts installation and for all shipping costs associated with providing replacement parts This limited warranty does not cover 1 Defects or damages arising as the result of shipment by common carriers or private transportation unle
71. perating conditions Improper modifications to these values can result in erratic performance and unreliable operation Do not attempt to modify the setup values unless you thoroughly understand what you are doing Setup examples in the Series F4 User s Manual are NOT applicable to this chamber If there is any doubt please call TestEquity before proceeding The correct values are documented in the Series F4 Temperature Controller Setup Parameters section of this manual TestEquity 3007C Temperature Chamber Page 4 15 Chapter 4 Temperature Controller Factory Page The Factory Page provides access to menus for controller diagnostics and calibration TestEquity has configured the security to require a password for access to the Setup Page However there will be times when entry into these menus is necessary For example you may need to gain access to Factory Page in order to perform a calibration or to change the security password You must call TestEquity at 877 512 3457 or 805 480 0638 to obtain the password CAUTION NEVER select Full Defaults in the Factory Test Menu This will erase all the correct values which are documented in the Series F4 Temperature Controller Setup Parameters section of this manual Computer Interface CAUTION Every setting in the F4 Controller can be accessed via the computer interface Improper modifications to configuration settings can result in erratic performance and unr
72. perature set point value Press the key once to enter the new temperature set point You are now back to the Main Page Main Page Static Set Point1 gt SP1 85 0 C 85 0 C Digitalout A A Power1 50 Y v Adjusts Value lt Back gt Next Boost Heat When the demand for heating throttle is at least 50 Powerl prompt on lower display of F4 Temperature Controller indicates 50 or more the number 6 will be indicated at the DigitalOut prompt This will energize the Boost Heating System Note that the Boost Heaters are only enabled when the compressors are off but the number 6 may still be indicated TestEquity 3007C Temperature Chamber Page 4 5 Chapter 4 Temperature Controller LN2 Liquid Nitrogen Boost Cooling Option 0018 Liquid Nitrogen can be used to provide faster cooling rates or greater cooling capacity with heavy or energized loads It does NOT provide infinite cooling capability For example with a 25 pound load and a range of 85 C to 40 C the chamber will cool at 8 C minute without LN2 and 13 C minute with LN2 However it cannot transform the chamber into a shock chamber The chamber is configured to enable or disable the LN2 Boost Cooling System through Event 2 Digital Output 2 in the Temperature Controller When Event 2 on the Temperature Controller is Off the LN2 Boost Cooling System is disabled If Event 2 is On the LN2 Boost Cooling System is enabled CAUTION Remember to set Digital0ut 2
73. play Displays actual chamber temperature during operation Displays error information if errors occur Main Page gt SP1 Digital Out Power1 Information Key about the cursor the display back to the parameter Left and Right Keys Provides information Move right to select the in the Lower Display choice to the right of the cursor and proceed selected parameter to the next screen Another press toggles Move left to exit Output Indicator Lights 1A Heat 1B Cool Alarm Output Indicator Lights Lit during an alarm state Communications Indicator Light Lit pulsates when the controller sends or receives valid data Scroll Bar Appears when the Up or Down Keys can reveal more information in the Lower Display Up and Down Keys Move the cursor position in the Lower Display through the menus in the direction of the key arrow Increase or decrease a value or change a letter in a user nameable field such as events and profile names Figure 4 1 Temperature Controller Keys and Displays To navigate through the menus Use the A or Y key to move the cursor to line up with the item to be selected in a menu on 1 i oe ie the lower display Press the key to select the item Enter or change the value or make a choice with the A or Y key Press the key to enter the value or choice Repeat until you return to the original list The gt key again saves the value and proceeds to
74. r Page 4 6 TestEquity 3007C Temperature Chamber Chapter 4 Temperature Controller Profile Programming The Series F4 Temperature Controller can be programmed to store up to 256 steps into as many as 10 profiles You do not need a computer to enter a profile it can be easily done through the controller s front panel keys A Profile is a set of instructions programmed as a sequence of steps The controller handles the profile steps automatically in sequence As many as 40 different profiles and a total of 256 steps can be stored in non volatile memory The 256 steps are grouped by profile So one profile could have 256 steps or 39 profiles could have 6 steps and one could have 22 or 32 profiles could have eight steps each The maximum number of steps is 256 and the maximum number of profiles is 40 Step Types Use the six available step types Autostart Ramp Time Ramp Rate Soak Jump and End to create simple or complex profiles involving all inputs and outputs The Series F4 prompts you to define each step s properties Autostart Step The use of an Autostart step in a profile is optional Autostart pauses a profile until the specified date or day and time of a 24 hour clock Define the Autostart by choosing e Day of the week or Date e Time To invoke an Autostart step in a profile you must activate the profile via the Profile Key and select the Autostart step Ramp Time Step Ramp Time changes the se
75. r of the refrigeration system must be performed only by a properly trained mechanic who is experienced in repairing cascade refrigeration systems Do NOT substitute any component Do NOT substitute refrigerants Improper repairs will void the warranty These instructions are intended as guidelines for repairing TestEquity chambers Details such as how to attach a gauge manifold are not covered These are NOT do it yourself instructions R 404A High Stage Charge TestEquity does NOT recommend charging the system by relying on a clear sight glass only Although a clear sight glass generally means the system is fully charged it can be misleading For example if the system is charged on a cool day or with an empty chamber it could be undercharged for hot days or with a heavy load The proper charging procedure is as follows 1 Repair any leaks before recharging 2 Attach a vacuum pump and manifold gauge to the suction and discharge ports 3 Evacuate the system to at least 100 microns DO NOT GUESS You must use a micron gauge 4 Use a charging scale to weigh in 100 ounces 6 25 pounds of R 404A 5 Verify the cooling performance as outlined in How to verify the chamber performance NOTE If the Temperature Controller is cycling Cool Light cycles on off the sightglass may appear 1 2 to 2 3 full This is normal R 508B Low Stage Charge 1 Repair any leaks before recharging 2 Attach a vacuum pump and manifold gauge to the suc
76. re and the temperature The hot high pressure vapor is forced out the compressor discharge valve and into the desuperheater The desuperheater removes some of the heat of compression Next the vapor goes through the oil separator which returns any entrained oil back to the compressor s crankcase The vapor flows through the condenser circuit ofthe cascade condenser where it is condensed back into a liquid The temperature controller cycles the low stage liquid line solenoid valve SV1 ON OFF to control the chamber temperature When SV1 is ON liquid refrigerant flows through the thermostatic expansion valve and evaporator to cool the chamber When SV1 is OFF the flow stops The hot gas bypass solenoid valve SV2 is ON whenever SV1 is OFF SV2 feeds high pressure vapor to the hot gas regulator which meters a precise amount into the suction line to maintain a minimum load on the system and keep it out ofa vacuum The hot gas regulator is adjusted to keep the suction pressure at 8 PSIG when SV1 is OFF This is also called bypass mode The temperature controller alternately cycles SV2 and SV1 through cool relay CR1 Pilot Light PL2 provides an indication on the front panel when SV1 is ON During a high temperature pulldown or a continuous bypass condition it is possible for excessive hot gas to return to the compressor A suction line cooling thermostatic expansion valve on both high and low stages senses the suction line temperature and in
77. ress the Aor Y key to position the Cursor next to the DigitalOut prompt Press the key once You will see Choose Event Output prompt in the lower display Press the Aor Y key to position the Cursor next to Event Output1 Press the key once to select Event Output Then press the Aor Y key to select On or Off Press the key once to return to the Choose Event Output prompt Press the key once to return back to the Main Page You will see a 1 in the DigitalOut line if Event is On Page 4 4 Main Page SP1 85 0 C gt DigitalOut gt Power 50 lt m gt Choose Event Output_ gt Event Output Event Output2 A Event Output3 y Event Outputi off gt On Main Page SP1 85 0 C gt DigitalOuti ____ Power1 50 lt gt TestEquity 3007C Temperature Chamber Chapter 4 Temperature Controller Static Set Point Control Manual Mode The Temperature Controller is in Static Mode when it is not controlling a Profile When in a Static Mode the Profile Indicator Light is off see Fig 4 1 The Upper Display shows the actual chamber workspace temperature The Static Set Point SP1 prompt is accessed from the Main Page To enter a Static Set Point 1 Press the Aor Y key to position the Cursor next to the SP1 prompt You may already be at this prompt 2 Press the key once You will see Static Set Point1 in the lower display with the current set point indicated below 3 Press the Aor Y key to change the tem
78. rfaces that are hot or cold to prevent severe burns or frostbite Protective gloves are recommended TestEquity 3007C Temperature Chamber Chapter 2 Installation Chapter 2 Installation Uncrating Inspect the shipping container for any signs of visible damage Notify the carrier and TestEquity immediately if there are signs of shipping damage The pallet is designed with ramps so the chamber can be rolled off without the need for a forklift or pallet jack Preparation For Use Inspect the chamber for signs of shipping damage Read this entire manual Select a suitable location to install the chamber Verify the input voltage configuration Connect to the power source A PS E Perform following the procedures as described in the Preventive Maintenance section a Inspect the electrical compartment b Inspect the refrigeration machinery compartment c Check the low stage refrigeration charge d Check the high stage refrigeration charge e Verify the chamber performance Installation Location The chamber will produce a significant amount of heat during normal operation Locate the chamber in a room with adequate ventilation to prevent excessive heat build up Allow enough space around the chamber to permit serviceability and the removal of the service access panels which are located on each side and the rear The chamber must be on a solid and level floor CAUTION The minimum clearance you should allow for
79. s The first step in a program should be an initialization step of 1 second usually at a set point of 23 C The next to last step establishes a condition to end on For example you may want to end the program by holding at 23 C so this step would be to go to 23 C The final step of every profile is End You cannot delete an End step or change it to another type but you can insert new steps before it TestEquity recommends having the end step type to be Hold or Idle TestEquity does NOT recommend using an end step type of All Off or Control Off This does not turn off the chamber fan The chamber temperature can reach 55 C just from heat generated by the fan and even higher if your test sample is energized See Protecting an Energized Test Sample in Chapter 5 for important information regarding energized test samples Profile Key The Profile key Initiates the profile mode Initiates the Hold profile state Initiates the Resume profile command Initiates the Terminate profile command The Profile Key functions only from the Main Page How to Start a Profile To initiate the profile mode press the Profile key and answer the questions that follow l Press the Profile key to enter the Profile Control Start a Profile menu The Profile Indicator will begin blinking vV No A Yes e Press the A key for Yes 2 Select the desired stored profile Start Profile e Press the Aor Y to scroll through the
80. so known as static or balance pressure 1 Make sure the chamber has been off for at least 8 hours 2 Locate the two low stage gauges marked R 508B on the left side of the rear of the chamber 3 The two gauges have different scales However they should read the same value of pressure This indicates that the system is equalized and an accurate reading can be taken 4 Both R 508B gauges should read approximately 132 PSIG 5 Ifthe pressure is low this indicates that there is probably a leak 6 If one gauge is low and the other is high then the system is not equalized yet and an accurate reading cannot be made Wait until both gauges read the same pressure NOTE If the low stage has been evacuated and recharged after a repair the standby pressure should be rechecked after 24 hours to make sure it is 132 PSIG This is because the R 508B refrigerant mixes with the oil in the compressor causing a lower standby pressure Do not mistake this initial loss of pressure with a leak After verifying that there is no leak you may need to top off the charge if the pressure is too low This note only applies to systems that have been evacuated and recharged How to check the high stage refrigerant charge The high stage refrigerant charge is checked by observing the sightglass The sight glass is located behind the rear bottom panel on the right side 2 Set the Temperature Controller to a low temperature Set Point The Cool Light should be on
81. ss TestEquity undertakes shipment and transportation of the Equipment to Purchaser s site or contractually assumes the risk of damage to the Equipment in shipment 2 Defects or damages arising out of or as the result of mishandling modification or improper start up installation or maintenance of the Equipment including start up installation or maintenance not in accordance with TestEquity s written procedures 3 Defects or damages resulting from or arising out of abuse misuse neglect intentional damage accident fire flood earthquake or any other act of God This warranty as to Equipment is LIMITED to repair or replacement of parts or Equipment in the determination of TestEquity LLC THE FORGOING LIMITED WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES INCLUDING THE IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE AND MERCHANTABILITY TestEquity LLC DISCLAIMS ANY LIABILITY FOR ANY DAMAGES RESULTING FROM DELAY OR LOSS OF USE IN SERVICE OR REPAIR OR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THE EQUIPMENT EXCEPT AS STATED IN THIS PARAGRAPH This limited warranty cannot be modified in any way except in writing by both TestEquity and Purchaser Invalidation of any one or more of the provisions of this limited warranty shall in no way affect any of the other provisions hereof which remain in full force and effect This limited warranty shall be extended only to the first P
82. t point to a new value in a chosen period of time Define the Ramp Time step by choosing e Wait for an event or process value e Event outputs 1 through 5 to turn ON or OFF For controlling the power to system functions and remote devices e Time in hours minutes and seconds e Temperature Set Point e PID set One of five sets of heat cool PID parameters Normally just leave at PID Set 1 e Guaranteed Soak Ramp Rate Step Ramp Rate changes the set point to a new value in a chosen rate of time Define the Ramp Rate step by choosing e Wait for an event or process value e Event outputs 1 through 5 to turn ON or OFF For controlling the power to system functions and remote devices e Rate in degrees per minute e Temperature Set Point e PID set One of five sets of heat cool PID parameters Normally just leave at PID Set 1 e Guaranteed Soak TestEquity 3007C Temperature Chamber Page 4 7 Chapter 4 Temperature Controller Soak Step Soak maintains the set point from the previous step for a chosen time in hours minutes and seconds Define the Soak step by choosing e Wait for an event or process value e Event outputs 1 through 5 to turn ON or OFF For controlling the power to system functions and remote devices e Time e PID set One of five sets of heat cool PID parameters Normally just leave at PID Set 1 e Guaranteed Soak Jump Step Jump initiates another step or profile Define the Jump step
83. test sample My test specification requires convection heat only Can I turn the circulator motor off NO This will damage the heating and refrigeration systems and void the warranty You need a gravity convection oven for that kind of test How accurate is the chamber That s a loaded question There is no chamber accuracy specification as such The answer requires an understanding of several performance parameters Control Tolerance The Temperature Controller uses a thermocouple control sensor which is located in the discharge airflow Control tolerance is a measure of how much the temperature varies after stabilization at the control sensor It is a measure of the relative variations NOT the absolute accuracy of the readout The control tolerance specification for this chamber is 0 5 C or a total of 1 C For example the temperature set point may be 25 0 C The actual temperature varies between 25 4 C and 24 5 C This corresponds to 0 4 C and 0 5 C or a total of 0 9 C of RELATIVE variations These specifications are for an empty chamber The addition of a test sample may effect the control variations In some instances the test sample will reduce these variations Uniformity Also known as Gradients This is a measure of variations in temperature at different locations throughout the chamber interior at the same time after stabilization The uniformity specification for this chamber is 1 0 C or a t
84. the next parameter in the series The lt key saves the value and backs out of the series and returns to the Main Page To edit a parameter proceed through the series using the key without changing values until you find the parameter you want to change After making the change with the with the A or V key you may back using the key out or proceed using the key to the end of the series Page 4 2 TestEquity 3007C Temperature Chamber Chapter 4 Temperature Controller Main Page The Main Page displays manual operating parameters running program parameters and error messages It also provides access to the Operations Profiles Setup and Factory pages The following is a list of Main Page parameters and the description of their functions Main Page Current File Current Step SP1 Step Type Target SP1 WaitFor Status Time Remaining DigitalOut Power1 DigitalIn Date Time TESTEQUITY 3007C Go Go Go Go to to to to Operations Profiles Setup Factory Displayed if running a profile the name of the profile Displayed if running a profile the current step of the profile Static manual temperature set point entry If running a profile the current set point Displayed if running a profile the type of step Displayed if running a profile the target temperature during a ramp step Displayed if running a profile the status during a WairFor step Displayed if running a profile the remaining time o
85. tion discharge and expansion tank ports Attaching to the expansion tank is very important because it is otherwise very difficult to evacuate the tank through the pressure regulator or capillary tube that is connects it to the system 3 Evacuate the system to at least 100 microns Do NOT guess You must use a micron gauge 4 Do NOT put any additives in the system Pentane is NOT necessary or desirable 5 Charge the system until the standby pressure is 142 PSIG Allow time for the charge to equalize as read on the suction and discharge gauges This is 10 PSIG higher than the target amount of 132 PSIG See NOTE below 6 Verify the cooling performance as outlined in How to verify the chamber performance NOTE If the low stage has been evacuated and recharged the standby pressure should be rechecked after 24 hours to make sure it is 132 PSIG This is because the refrigerant mixes with the POE oil in the compressor causing a lower standby pressure than was initially observed Do not mistake this initial loss of pressure with a leak After verifying that there is no leak you may need to top off the charge if the pressure is too low Page 8 10 TestEquity 3007C Temperature Chamber Chapter 8 Maintenance Recommended Spare Parts Replacement parts are available from TestEquity Parts are generally in stock and ready for immediate shipment Next day delivery is always available If you cannot risk being out of service for even one d
86. to assure that should it relieve the effluent will not discharge towards operating personnel WARNING All liquid nitrogen connecting piping or tubing must be well insulated with appropriate vapor sealed or vacuum jacketed materials Un insulated nitrogen connecting lines can condense pure oxygen on their surface since liquid nitrogen is colder than liquid oxygen Liquid oxygen can present a spontaneous fire hazard when spilled onto organic materials WARNING Nitrogen gas is heavier than air It makes up about 78 ofthe Earth s standard atmosphere is non toxic colorless odorless and tasteless Pure nitrogen gas in a closed area can present an asphyxiation hazard suffocation without warning Liquid Nitrogen Installation Your chamber may be configured with LN2 Boost Cooling capability The LN2 system is designed to operate with a low pressure Dewar or low pressure bulk supply system A customer provided source of liquid nitrogen at a supply pressure between 10 psig and 75 psig is required for LN2 Boost Cooling A high pressure Dewar may be used but the supply must be carefully regulated to less than 75 psig to prevent venting by the chamber s LN2 pressure relief valve which is set for 100 psig If a high pressure Dewar is used provide a liquid nitrogen rated relief valve with a setting of not more than 100 psig in the connecting line to relieve pressure in the event that the supply hand valve on the container is manually closed
87. u This will erase all the correct values which are documented in the Series F4 Temperature Controller Setup Parameters section of this manual Security Features The Series F4 Controller has several levels of security to prevent unauthorized users from changing critical configuration parameters Only the Set Point and Profile menus have Full Access TestEquity has configured all other menus to Password and have protected them with a password TestEquity does not recommend that these security levels be changed for most applications However there will be times when entry into these menus is necessary For example you may need to gain access to Setup Page in order to change from C to F display or to change the time or date You must call TestEquity at 877 512 3457 or 805 480 0638 to obtain the password TestEquity 3007C Temperature Chamber Page 4 1 Chapter 4 Temperature Controller Temperature Controller Keys and Displays Lower Display Displays information about the setup operation and programming ofthe controller Cursor Indicates selected parameter or present value in memory Moves via the four navigation keys Profile Indicator Light Lit when a ramping profile runs When blinking the profile is on hold When not lit the controller operates as a static set point controller Profile Key Summons a menu that allows you to start hold resume or terminate a profile Upper Dis
88. urchaser of this Equipment and is not transferable TestEquity 3007C Temperature Chamber Page 9 1 Chapter 10 Drawings Chapter 10 Drawings TestEquity 3007C Temperature Chamber Page 10 1 Electrical Subpanel Component Location FNQ R 4 FNQ R 20 LP CC 20 LP CC 20 Control F7 Transformer c R TM1 5 c1 C2 TB1 Terminals 10 12 13 14 15 16 17 18 19 Al A2 TB2 Terminals H H2 H3 G
89. ure Chamber Page 8 5 Chapter 8 Maintenance Theory of Operation Overview The chamber is heated by an open element nichrome heater Cooling is accomplished by a cascade refrigeration system The air is circulated by two blowers The heater evaporator cooling coil and blowers are located within an air plenum which is on the back wall ofthe chamber interior The heater compressor and circulator fan motor operate directly from the 208 230 VAC input line All line branch circuits are individually fused A stepdown transformer provides 115 VAC for all instrumentation and control elements Refer to the electrical and refrigeration drawings to identify the referenced items described below Heating System The chamber is heated by an open element nichrome heater HT1 The heater is located in the air plenum The temperature controller provides a time proportioned output to the solid state relays SSR1 2 This turns the heater on off as required to maintain the temperature set point SSRI is controlled by the F4 Controller s Heat Output F4 1A SSR2 is controlled by the F4 Controller s Boost Heat Output Digital Output 6 Relay CRS disables the boost heat capability when the refrigeration system is running in order to reduce the power consumption Pilot light PL1 provides an indication on the front panel when the heater is on Fusible heat limiters HL1 2 3 provide failsafe protection against a catastrophic failure by opening the
90. w step will precede Press to enter the new step and follow the step parameter prompts Insert Before Step 1 Ramp Time gt Step 2 Soak Step 3 Ramp Time 7 To delete a step e Choose Delete Step see step 4 above Press the Aor Y to scroll through the number of the step you want to delete e Press to delete the step Delete Step _ Step 1 Ramp Time gt Step 2 Soak Step 3 Ramp Time 8 Save your settings e Press successively to exit the Profiles Page e After exiting the Profiles Page choose A to save the new profile values or Y to restore the old values Save profile data or restore values Y Restore A Save An End Step cannot be deleted Page 4 12 Inserting or deleting a step will renumber all steps that follow A Jump Step that jumps to an End Step cannot be deleted Inserting a new ramp step usually requires inserting an associated soak step Deleting a ramp step usually requires deleting the associated soak step TestEquity 3007C Temperature Chamber Chapter 4 Temperature Controller manual set point Turn chamber off at end of profile The Conditioning switch must be in the 85 C to 40 C 5 C minute ramp 1 hour soak time 100 cycles End with return to 23 C Event 1 position if you want the profile to turn the chamber ON OFF Profile Example Step Step Date Choose Digit Out Time Chi PID Guar Jump to End Idle Number Type Day Time Wa
91. word TestEquity does not recommend that these security levels be changed for most applications However there will be times when Full Access is necessary For example you may need to gain access to Setup Page in order to change from C to F display or to change the time or date Y ou must call TestEquity at 877 512 3457 or 805 480 0638 to obtain the password Set Lockout Menu Main Page Go to Factory Set Lockout Set Point Full Access Oper Autotune PID Password Oper Edit PID Password Oper Alarm SP Password Profile Full Access Setup Password Factory Password Page 8 16 TestEquity 3007C Temperature Chamber Chapter 8 Maintenance EZ Zone Limit Controller Setup Parameters CAUTION The EZ Zone Limit Controller has been properly configured by TestEquity to match the chamber s system requirements Improper modifications to these setup values can result in erratic performance and unreliable operation Do not attempt to modify the setup values unless you thoroughly understand what you are doing If there is any doubt please call TestEquity before proceeding Setup Menu Prompt Function Setting Alternate Setting i of Lockout Menu See NOTE 1 below En Sensor Type C Do Not Change L im Linearization amp Do Not Change dEC Decimal 0 Alt 0 0
92. y The safety alert symbol A precedes a general CAUTION or WARNING statement The electrical hazard symbol A precedes an electric shock hazard CAUTION or WARNING statement Installation Safety Notices ZA CAUTION The minimum clearance you should allow for proper ventilation around the chamber must be at least 12 from both the left and right side and 24 from the rear ZA CAUTION This chamber is designed for operation in a conditioned laboratory environment Operation above 30 C 85 F or below 16 C 60 F ambient room temperature is NOT recommended CAUTION The Input Voltage label on the back of the chamber indicates the input voltage configuration as shipped from the factory If the input voltage configuration is changed this label must be replaced to reflect the new configuration Replacement labels are available from TestEquity at no charge ZA CAUTION This chamber must be properly configured for either 208 V or 230 V 240 V nominal input 208 V and 230 V 240 V are NOT the same Do NOT guess Do NOT assume you have 220 V You must verify the exact type of electrical service you have Ifthere is any doubt you must consult with a qualified electrician who is familiar with industrial plant wiring In addition the input line voltage should be measured while the chamber is operating in a continuous HEAT mode to ensure that the expected nominal voltage of either 208 V 5 10 or 230 V 10 is present A CAUTION This

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