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With F4 Controller and EZ

1. 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 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 TestEquity 115A Temperature Chamber Page 9 13 Chapter 9 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 ce See NOTE 1 below En Sensor Type C Do Not Change L n Linearization t Do Not Change dEC Decimal 0 Alt 0 0 C_F Cor F CAN PF rL o Range Low 75 Do not make any lower r h Range High 180 Do not make any higher Fag Output 2 Function L 9 Do Not Change L Sd Limit Sides both Alt high High only or LoW
2. Port plugs should be considered expendable and be replaced when they no longer provide a good seal TestEquity 115A Temperature Chamber Page 3 3 Chapter 3 Operation Performance Considerations The performance of all chambers is significantly effected 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 of the 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 airflow 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 Avoidi
3. to a higher or lower value EZ Key RESET Key Advance Key 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 key once to get the prompt in the lower display This is the Low Limit Set Point prompt 2 Press the Aor V 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 key once again to get the prompt in the lower display This is the High Limit Set Point prompt 4 Press the Aor W 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 Condition 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 Th
4. 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 acharging scale to weigh in 9 ounces of R 404A older units with Copeland compressors have a 7 ounce charge 5 Verify the cooling performance as outlined in How to verify the chamber performance R 508B Low Stage Charge Repair any leaks before recharging Attach a vacuum pump and manifold gauge to the suction and discharge ports 1 2 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 or propane is NOT necessary or desirable 5 Charge the system until the standby pressure is 120 PSIG at an ambient temperature of 73 F 23 C Allow time for the charge to equalize as read on the suction and discharge gauges This is 15 PSIG higher than the target amount of 105 PSIG This corresponds to approximately 6 ounces See NOTE below 6 Verify the cooling performance as outlined in How to verify the chamber performance NOTE Ifthe low stage has been evacuated and recharged the standby pressure should be rechecked after 24 hours to make sure it is 105 PSIG at an ambient temperature of 73 F 23 C 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 p
5. Air System Connect to PURGE fitting on chamber Compressed Air Inlet to Dry Air System Shutoff valve on the Dry Air System is shown in the off position Valve must be in the on position to operate Figure 6 1 Dry Air Purge System Installation typical TestEquity 115A Temperature Chamber Page 6 1 Chapter 6 Purge Purge Operation The Purge mode is enabled through Event 2 Digital Output 2 in the F4 Controller NOTE The Modbus register to program Digital Output 2 in static set point mode is 2010 NOTE Remember to set Digital Output 2 to On in all programmed steps when the you want to use the purge The Event Outputs are accessed from the DigitalOut prompt on the Main Page in static set point mode and the DIGIT OUT prompt in the Profile programming mode Adjusting the Purge Flow A flowmeter is located on the front panel to adjust the flow of purge gas into the chamber The flowmeter has a scale calibrated in SCFM The flow of purge gas should be adjusted to the minimum amount required to obtain the desired drying in the chamber for your particular conditions A suggested starting setting is 2 SCFM Relief Vent Excess pressure in the chamber workspace is vented through a pressure relief check valve which is located within the electrical compartment There is no need to vent this externally Page 6 2 TestEquity 115A Temperature Chamber Chapter 7 Frequently Asked Questions Chapter 7 Frequently Asked
6. Alarm Self Clears Main Page Go to Setup Silencing Yes Digital Output 2 7 Hysteresis 1 7 C 3 0 if F Name No Alarm Sides Both Function Event Output Alarm Logic Open on Alarm Main Page Go to Setup Show Message Yes on Main Page Digital Output 8 Function Compressor NOTE The alarm outputs of the Comp On Power 2 Temperature Controller are NOT connected Comp Off Power 2 to the chamber s safety system TestEquity Comp Off Delay 60 sec does NOT recommend using the Comp On Delay 10 sec Temperature Controller s alarm function as the main protection device Communications Menu Main Page Go to Setup Retransmit Output Menu Communications if retransmit option is ordered Baud Rate 9600 Main Page Go to Setup Address 1 Retransmit Output 1 Retransmit Source Set point 1 Custom Main Page Menu Analog Range pa Main Page Go to Setup Low Scale 74 0 C 101 0 if F Custom Main Page High Scale 175 0 C 347 0 if F Pl Current File Scale Offset 0 0 P2 Current Step Main Page Go to Setup n Sion Retransmit Output 2 PS Target SP1 Retransmit Source Input 1 P6 WaitFor Status Analog Range 0 5V P7 Jump Count Low Scale 74 0 C 101 0 if F P8 Time Remaining High Scale 175 0 C 347 0 if F P9 Digital Outputs Scale Offset 0 0 P10 Power 1 P11 Date P12 Time P13 Custom Message 1 P14 None P15 None P16 None Static Page Menu Main Page Go to Setup Static Message Message 1 TESTEQUITY 115A Series F4 Operations Par
7. ESI EQUITY Model 115A Temperature Chamber With F4 Controller and EZ Zone Limit Controller Serial Number 151984 and above 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 2012 2015 TestEquity LLC Rev 2 04 October 8 2015 _ C CtCC _CTable of Contents Chapter 1 Safety Instructions 1 1 Introduction 1 1 Installation Safety Notices 1 1 Operation Safety Notices 1 1 Chapter 2 Installation 2 1 Uncrating 2 1 Preparation For Use 2 1 Installation Location 2 2 Condensate Drain 2 2 Reversible Chamber Door 2 2 Chapter 3 Operation 3 1 Introduction 3 1 Summary of Chamber Operation 3 1 Front Panel Switches and Lights 3 2 POWER Switch 3 2 CONDITIONING Switch ON Mode 3 2 CONDITIONING Switch EVENT 1 Mode 3 2 LIGHT Switch 3 2 HEAT Light 3 2 COOL Light 3 2 Loading the Chamber 3 3 Port Plugs 3 3 Performance Considerations 3 4 Avoiding Moisture 3 4 Internal Test Fixtures 3 4 Chapter 4 Temperature Controller 4 1 Introduction 4 1 Security Features 4 1 Temperature Controller Keys and Displays 4 2 Main Page 4 3 Static Set Point Control 4 3 System Enable Function 4 4 Profile Programming 4 5 Step Types 4 5 How to Program a New Profi
8. 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 interior light or even higher if your test sample is energized If you want to turn the chamber off at the end of a profile see System Enable Function on page 4 4 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 Then 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
9. Questions I need to send the chamber outside North America Will it work with their power Outside North America most countries have 50 Hz Nominal voltages in are typically 220 V to 240 V You CANNOT simply step the voltage down to 120 V because the compressors have a 50 Hz rating of 100 V nominal 95 V min to 110 V max We do make a special export version for this purpose model 115A EX It has 230 V 50 Hz compressors and an internal step down transformer for the heater and control circuitry 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 chamber performance How can I modify the chamber to cool faster Unfortunately there is little you can do to improve upon the designed in performance TestEquity does NOT recommend using CO2 or LN2 in this chamber t
10. 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 I m 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 storage This will ensure that the chamber will be ready to operate when it is taken out of storage If the 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 nothi
11. Unplug the chamber from the power source Remove the top 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 Inspect for loose wires and burned insulation near terminals SD Sey Mee Inspect for signs of insect or rodent infestation Yes it does happen 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 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 w
12. and this can be changed in the System Menu Page 4 6 TestEquity 115A 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 gt key Main Page gt Go to Profiles Go to Setup Go to Factory lt gt 2 Create a new Profile The cursor will be on Create Profile Press the 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 Profile1 and skip this step To name a profile e Press gt to enter the name space and the first position e Press the Aor to scroll through the alphabet and stop at the letter or number desired e Press gt 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 gt to save the name of the profile Choose to Name No gt Yes Enter Profile Name _ PROFILE1 A v Adjusts Char lt gt Save Changes 4 Choose the step type e There are five 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 Soak v 5 Define each step type The Series F
13. cycling noises How to inspect the door seal The chamber has two silicone gaskets to minimize thermal losses and 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 Repeat this all around the door at several places e If the seal is not tight on the latch side adjust the latch bracket The latch bracket is mounted to the chamber and has slotted holes to permit adjustment e If the seal is not tight on the hinge side adjust the door hinge The hinges have a slotted hole on the door side to permit adjustment How to clean the condenser 1 Unplug the chamber from the power source 2 Remove the condenser cover lower panel from the front of the chamber 3 Clean the condenser 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 Page 9 2 TestEquity 115A Temperature Chamber Chapter 9 Maintenance How to inspect the electrical amp refrigeration machinery compartments WARNING Wear safety goggles when inspecting the refrigeration machinery compartment to protect against a refrigerant line which could break
14. 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 total of 2 C when measured at least 3 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
15. 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 TM1 This reduces the system s starting current while allowing the cascade condenser to get cool before the low stage turns on Page 9 6 TestEquity 115A Temperature Chamber Chapter 9 Maintenance Troubleshooting SYMPTOM CONDITION CAUSES 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 light is ON Solid State Relay SSR1 is defective open Heat Limiter HL is open Heat is on all the time If temperature controller light 1A is OFF the Heat light is ON Solid State Relay SSR1 is defective shorted Compressors do not run R 404A pressure switch PS2 trips When set point is lower than chamber temperature and temperature controller DigitalOut prompt shows 8 Trips after operating for a while Pressure switch PS2 is tripped Ambient temperature may be too high over 90 F Dirty condenser inadequate clearance from back of chamber to the wall Cools down too slow Does not meet published specifications with empty chamber and ambient temperature is not over 80 F Low charge leak Solenoid valve SV1 is defective doesn t close completely Does not cool down at all Both compressors are r
16. the electrical amp refrigeration machinery compartments How to verify the calibration How to verify the chamber performance Theory of Operation Overview Heating System Refrigeration System Troubleshooting Refrigeration System Charging Instructions R 404A High Stage Charge R 508B Low Stage Charge 9 8 Recommended Spare Parts Major Electrical Parts Major Refrigeration Parts General Parts 9 10 Series F4 Temperature Controller Setup Parameters Series F4 Setup Parameters 9 11 9 12 Series F4 Operations Parameters 9 12 Series F4 Set Lockout Parameters 9 13 EZ Zone Limit Controller Setup Parameters Setup Menu 9 14 9 14 Operations Menu 9 14 Chapter 10 Warranty Chapter 11 Drawings 10 1 11 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 injury 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 Installatio
17. 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 WARNING 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 TestEquity 115A Temperature Chamber Page 1 3 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 Cut the bands that hold the packaging together Remove the top cover and top foam inserts Remove the outer box Remove the front and one side 2x4 retainer from the base of the pallet Remove the foam inserts from the base of the pallet Carefully roll for model 115A F and or lift the chamber off the pallet This should be done with at least four people DN OE BY OO Preparation For Use A WARNING The power cord is equipped with a NEMA 5 20P grounded polarized plug To prevent a shock hazard DO NOT defeat the ground or polarization feature This device MUST be plugged DIRECTLY into a properly grounded and polarized NEMA 5 20R receptacle Due to high current demand on start up use of an extension cord is NOT recommended YES NO NEMA 5 20R NEMA 5 15R 20 Amp Receptacle 15 Amp Receptacle Inspect
18. 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 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 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 operating 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 doub
19. 4 TestEquity 115A 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 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 wh
20. 4 prompts you to define the parameters of each step type See Step Types earlier in this chapter Not all choices are shown in this example Choose to wait ___ gt Step does not wait Step waits for Choose DIGIT OUT1 gt Off On Enter Ramp Time 00 00 01 H M S A v Adjusts Digit lt gt Save Changes Enter Chi SP _ 85 0 C A v Adjusts Value lt Back gt Next 6 Choose the end state e All profiles end with an End step which is preprogrammed into the new profile See End Step earlier in this chapter Choose End State 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 Y Restore A Save TestEquity 115A Temperature Chamber Page 4 7 Chapter 4 Temperature Controller Programming Hints e The first step in a program should be an initialization step of 1 second e 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 e 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 e TestEquity recommends having the end step type to be Hold or Idle e TestEquity does NOT recommend using an end step type of All Off or Control
21. Disable all chamber functions in static set point mode 1 The F4 Temperature Controller must first be on the Main Main Page Page Press the Aor VW key to position the Cursor next to SP1 85 0 C A the DigitalOut prompt gt DigitalOut E Power 1 50 V 2 Press the key once You will see Choose Event Output_ Choose Event Output prompt in the lower gt Event Output display Press the Aor V key to position the Cursor Event Output2 E next to Event Output1 Event Output3 y 3 Press the gt key once to select Event Output1 Event Output1 Then press the Aor V key to select On or Off Off gt On 4 Press the gt 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 Digitalout1 i You will see a 1 in the DigitalOut line if Event is Power 50 Y On Page 4 4 TestEquity 115A 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 p
22. Low only L h Y Limit Hysteresis Change not recommended REY Alarm Type oFF Do Not Change PA I Upper Display ACP Alt none PA 2 Lower Display LSt Alt Lh s High Set Point or LL S Low Set Point Ad 5 Zone Address I Not functional for this application NOTE 1 The Lockout Menu sets the security clearance level as follows i Operations Menu read only 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 Appropriate Low Limit Set Point Prompt Function Setting Alternate Setting Low Set Point High Set Point Calibration Offset Q Appropriate High Limit Set Point 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 Page 9 14 TestEquity 115A Temperature Chamber Chapter 10 Warranty Chapter 10 Warranty TestEquity LLC Limited Warranty TestEquity LLC TestEquity warrants Environmental Chambers Equipment 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
23. ON 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 that generate surface temperatures over 1000 F This is NOT an explosion proof chamber Do NOT put items in the chamber that 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 could occur if your test sample exceeds the live load rating of the chamber or if the chamber s refrigeration system fails To prevent damage to your test sample and the chamber s compressor do not exceed the live load rating of the chamber Live Load Capacity for Model 115 Temp 23 C 0 C 40 C 55 C 65 C Watts 300W 255W 160W 110W 80W 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
24. Off This does not turn off the chamber fan The chamber temperature can reach 55 C just from heat generated by the fan and interior light or even higher if your test sample is energized e Ifyou must turn off all chamber functions at the end of a profile see System Enable Function in on page 4 4 If this function is used the you must remember to set Event 1 CONDITION to On in all programmed steps when the chamber is to be operational Profile Key The Profile key e Initiates the profile mode e Initiates the Hold profile state e Initiates the Resume profile command e 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 1 Press the Profile key to enter the Profile Control Start a Profile menu e The Profile Indicator will begin blinking v No A Yes e Press the A key for Yes 2 Select the desired stored profile Start Profile e Press the Aor W to scroll through the list of Profilet stored profiles gt Profile2 i e Press gt to select the desired profile Profile3 y 3 Select the desired step to start on Start e Press the Aor V to scroll through the list of steps gt 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 A e Press to select the desired start step and t
25. Page parameters and the description of their functions Main Page Current File Displayed if running a profile the name of the profile Current Step Displayed if running a profile the current step of the profile gt SP1 Static manual temperature set point entry If running a profile the current set point Step Type Displayed if running a profile the type of step Target SP1 Displayed if running a profile the target temperature during a ramp step WaitFor Status Displayed if running a profile the status during a WaitFor step Jump Count Displayed if running a profile the number of jumps completed Time Remaining Displayed if running a profile the remaining time of the current step DigitalOut Status of the event outputs 1 to 8 An 8 indicates when cooling system is ON Power The of throttle of the heat output Date Real time clock date Time Real time clock time TESTEQUITY 115 Identifies the chamber model number Go to Operations Access to Operations Page Go to Profiles Access to Profiles Page Go to Setup Access to Setup Page Not displayed if running a profile Go to Factory Access to Factory Page Not displayed if running a profile Static Set Point Control 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 f
26. ailable for customer use Event 2 3 4 Not available for customer use if Purge option is ordered Event 3 5 6 Event 4 7 8 Event 5 9 10 Event 6 11 12 Event 7 13 14 The event outputs are just switches You must provide power from an external source 5 Drill an access hole in the upper compartment to route your wires through Use the appropriate wire cable management fittings Page 4 12 TestEquity 115A 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 CAUTION The Series F4 Temperature 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
27. ameters PID Set Channel 1 Menu Alarm Setpoints Menu Main Page Go to Operations Edit PID PID Set Channel 1 Main Page Go to Operations Alarm Setpoints Alarm1 PID Set 1 5 Alarm1 Low SP 74 0 C 101 0 if F Proportional Band A 5 0 C 9 0 if F Alarm1 High SP 175 0 C 347 0 if F Reset A 0 10 min Main Page Go to Operations Alarm Setpoints Alarm2 Rate A 0 00 min Alarm2 Low SP 74 0 C 101 0 if F Dead Band A 0 0 C Alarm2 High SP 175 0 C 347 0 if F Proportional Band B 5 0 C 9 0 if F Reset B 0 10 min NOTE The alarm outputs of the Temperature Controller are NOT Rate B 0 00 min connected to the chamber s safety system TestEquity does NOT Dead Band B 0 0 recommend using the Temperature Controller s alarm function as the main protection device Page 9 12 TestEquity 115A Temperature Chamber Chapter 9 Maintenance 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 password 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
28. ants 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 115A Temperature Chamber Page 7 3 Chapter 8 Specifications Chapter 8 Specifications Model 115A Chamber Specifications Temperature Range 73 C to 175 C Control Tolerance 0 2 C Measured at the control sensor after stabilization Uniformity t1 0 C Variations throughout the chamber after stabilization Live Load Capacity 23 C 0 C 40 C 55 C 65 C 300W 255W 160 W 110 W 80 W Cool Down Transition Time End Temp Start Temp to gt 23 C 0 C 40 C 55 C 65 C 73 C 23 C 5 min 20 min 30 min 40 min ultimate 85 C 16 min 25 min 45 min 57 min 69 min ultimate Heat Up Transition Time 5 C per minute typical Note Transition times are measured after a 1 hour soak at the respective start temperature with an empty chamber as indicated on the temperature controller 23 C ambient Measured with set point beyond the start and end temperatures Does not include the effect of proportional band when approaching set point Measured at nominal line voltage of 120V 60 Hz Refrigeration and Heating System High Stage Refrigerant R 404A Dupont HP 62 Low Stage Refrigerant R 508B Dupont SUVA 95 Compressors 1 2 HP x 1 3 HP hermetic compressors in a cascade configuration Condenser Air Cooled Heater Power 600 Watts Input Pow
29. at 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 115A 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 SAFE during normal operation or FA L in an out of limit condition or the parameter whose value appears in the Up Down Keys 0 O rw 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
30. condense out of the air The effect is ice or frost during low temperature operation When the chamber is heated above 0 C or the cooling system turns off the ice or frost will turn into water The drain fitting accommodates a 1 4 inch male pipe thread The chamber drain water is not under pressure and is fed by gravity Therefore it must empty into a container or 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 Reversible Chamber Door The chamber door can be mounted to open from the left or right side The chamber cabinet has mounting holes on both sides for the hinges and door latch If you reverse the door see How to inspect the door seal in the Maintenance chapter of this manual to make sure the hinges and door latch are adjusted correctly Page 2 2 TestEquity 115A Temperature Chamber Chapter 3 Operation Chapter 3 Operation Introduction The Front Panel Switches control power to the temperature controller and all chamber functions The Limit Controller is a protection device It turns the chamber OFF and sounds an alarm if the workspace temperature exceeds either a high temperature or low temperature limit set point The Temperature Controller controls the temperature of the chamber The Temperature Controller automatically turns the refrigeration system on or off as required based on the devia
31. d begin controlling Cool Light cycles ON OFF within 1 hour and 7 minutes 67 minutes 11 The chamber temperature should slowly decrease and stabilize to 65 C It should NOT undershoot beyond 65 5 C and the compressors should NOT need to turn OFF in order to maintain 65 C 12 After stabilization the chamber temperature should vary no more than 0 2 C or a total of 0 4 C 13 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 14 This concludes the chamber performance verification tests 15 Let the chamber heat up to 23 C before turning the chamber OFF Page 9 4 TestEquity 115A Temperature Chamber Chapter 9 Maintenance Theory of Operation Overview The chamber is heated by an open element nichrome heater Cooling is accomplished by a cascade refrigeration system which consists of two compressors The air is circulated by a propeller fan The heater evaporator cooling coil and fan are located within an air plenum which is on the top of the chamber interior 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 TCR1 provides a time proportioned output to a solid state relay SSR1 This turns the heater on o
32. e 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 TEMP 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 115A Temperature Chamber Chapter 6 Purge Chapter 6 Purge Introduction Optional GN gaseous nitrogen Purge or optional Dry Air Purge can be used to reduce to possibility of condensation in the chamber at low temperatures CAUTION Nitrogen cannot be detected by human senses Nitrogen is non toxic However if adequate ventilation is not provided nitrogen will displace air This can cause dizziness unconsciousness or death without warning The chamber must be located in a well ventilated area Do not open the chamber door with the GN flowing GN2 Gaseous Nitrogen Installation Option TE 1009 Connect a supply of GN with a maximum pressure of 100 psig to the 1 4 inch FPT fitting which is designated PURGE on the rear panel Dry Air Installation Option TE 0017 Connect the hose from the Dry Air system to the fitting which is designated PURGE on the rear panel Connect a supply of compressed air to the 3 8 inch FPT shutoff valve of Dry Air system This system requires a 5 cfm supply air flow rate at 100 psig 175 psig max Purge Inlet from Dry
33. e condenser e Inspect the electrical and refrigeration machinery compartments e Verify the chamber performance Every 12 Months e Verify the calibration TestEquity 115A Temperature Chamber Page 9 1 Chapter 9 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 Valve
34. e values e After exiting the Profiles Page choose A to save v Restore A Save the new profile values or V to restore the old values e Inserting or deleting a step will renumber all steps that follow e A Jump Step that jumps to an End Step cannot be deleted e An End Step cannot be deleted e Inserting a new ramp step usually requires inserting an associated soak step Deleting a ramp step usually requires deleting the associated soak step Page 4 10 TestEquity 115A Temperature Chamber Chapter 4 Temperature Controller The following are examples of two typical profiles Note that Digit Out 1 is named Profile Examples CONDITION Profile Summary 40 C to 85 C no ramps 30 minute soak time 4 cycles End with return to 23 C manual set point Step Step Date Choose Digit Out Time Chi PID Guar Jump to End Number Type Day Time Wait for 1 2 3 4 5 6 7 H M S Rate SP Set Soak Profile Step Repeats Type 1 Ramp Time gt gt gt gt gt gt gt gt 00 00 01 23 0 1 No 2 Ramp Time gt ne ee e E a S 00 00 01 40 0 1 No 3 Soak gt gt gt gt gt gt gt gt 00 30 00 1 Yes 4 Ramp Time gt Ba L EN l 00 00 01 85 0 1 No 5 Soak gt Be D a a ao 00 30 00 1 Yes 6 Jump gt Bi T A SN RA SRA S Name 2 3 7 End Idle 23 0 Step Description Establishes a recommended initialization step Goes to 23 C as quickly as possible Goes to 40 C as
35. ecific 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 Page 3 4 TestEquity 115A Temperature Chamber 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 and 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 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 func
36. ed 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 V 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 interior light or even higher if your test sample is energized How to Delete or Re Name a Profile 1 Go to the Profiles Page Main Page Move the cursor down the Main Page to gt Go to Profiles A Go to Profiles then press the gt key Go to Setup B Go to Factory y 2 Choose Delete or Re Name Main gt Profile _ e Press Aor to scroll through your choice e Press gt to select your choice The controller will prompt you to select the profile you want to delete or re name Edit Profile gt Delete Profile Re Name Profile gt TestEquity 115A Temperature Chamber Page 4 9 Chapter 4 Temperature Controller How to Edit a Profile 1 Go to the Profiles Page Main Page Move the cursor down the Main Page to gt Go to Profiles Go to Profiles then press t
37. er 120 V nominal 110 to 126 VAC 60 Hz 1 PH Max Current Draw 15 A Recommended Minimum Service 20 A Workspace Dimensions 16 Wx 12 Hx 14 D 1 55 cubic feet Outside Dimensions Bench Version 24 W x 44 H x 26 D nominal Floor Version 24 W x 61 H x 26 D nominal Min Installed Clearance 6 from the left and right side 12 from the rear Access Ports 3 Port on left and right side two total Supplied with foam plugs Weight 115A B Bench Version 260 pounds 115A F Floor Version 300 pounds Sound Level 52 dBA in cooling mode A weighted measured 36 from the front surface 63 from the floor in a free standing environment 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 will 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 115A Temperature Chamber Page 8 1 Chapter 8 Specifications F4 Temperature Controller Specifications Specifications as configured for the TestEquity 115A 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 U
38. f 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 Purchaser of this Equipment and is not transferable TestEquity 115A Temperature Chamber Page 10 1 Chapter 11 Drawings
39. ff as required to maintain the temperature set point The heat pilot light PL1 provides an indication on the front panel when the heater is on A fusible heat limiter HL provides failsafe protection against a catastrophic failure by opening the heater circuit 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 power switch SW1 temp switch SW2 and temperature limit controller TCR2 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 to a capillary tube with feeds the evaporator circuit of the cascade condenser The capillary tube reduces the pressure of the refrigerant to the evaporating or low side pressure The reduction of pressure on the liquid refrigerant causes it to boil or vaporize absorbing heat which provides a cooling effect The re
40. frigerant 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 across the finned condenser surface The vapor condenses into a liquid and the cycle is repeated The low stage uses refrigerant R 508B High pressure liquid refrigerant is fed from the condenser circuit of the cascade condenser through the filter drier and capillary tube The capillary tube 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 pressure and the temperature The hot high pressure vapor is forced out the compressor discharge valve and into the desuperheater The finned coil TestEquity 115A Temperature Chamber Page 9 5 Chapter 9 Maintenance 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 of the cascade condenser whe
41. he gt key Go to Setup Go to Factory 2 Choose Edit Profile Main gt Profile _ e Press the W key to choose on Edit Profile Create Profile Then press the gt key gt Edit Profile Delete Profile 3 Select the desired stored profile to edit Edit Profile e Press the Aor F 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 YW to scroll through the list of step Insert Step edit choices gt Edit Step e Press gt to select your choice Delete Step Done 5 To edit a step Edit Step e Press the Aor V to scroll through the list of steps gt Step 1 Ramp Time you want to edit Step 2 Soak e Press gt to scroll through the step parameters and Step 3 Ramp Time make any desired changes 6 To insert a step Insert Before e Choose Edit Profile see step 4 above Step 1 Ramp Time e Press the Aor Y to scroll through the number of gt Step 2 Soak the step that the new step will precede Step 3 Ramp Time e Press gt to enter the new step and follow the step parameter prompts 7 To delete a step Delete Step __ e Choose Delete Step see step 4 above Step 1 Ramp Time e Press the Aor Y to scroll through the number of gt Step 2 Soak the step you want to delete Step 3 Ramp Time e Press gt to delete the step 8 Save your settings Save profile data e Press lt successively to exit the Profiles Page or restor
42. he profile will begin to run The Profile Indicator will stay lit Main Page gt Profile 2 Running Step 1 SP1 85 0 C Y 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 8 TestEquity 115A 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 V 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 2 To Resume profile on hold press the Profile key to enter the Resume Profile menu e Then press Aor V to make your choice for Resume e Press to select Resume Hold Profile _ Don t Hold gt Hold Terminate Main Page gt Profile 2 Holding Step 2 SP1 23 0 C V Resume Profile 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 resum
43. igured 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 A 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 CAUTION To prevent damage to your test sample and the chamber s compressors do not exceed the live load rating of the chamber WARNING 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 WARNING Do NOT put items in the chamber which can emit corrosive vapors or substances WARNING This chamber is NOT a curing oven There are NO provisions for venting fumes Page 1 2 TestEquity 115A Temperature Chamber Chapter 1 Safety A WARNING The chamber door must remain closed while the chamber is operating If
44. ion 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 WV key to position the Cursor next to the EventOutput prompt which you want to change You will be able to select from EventOutput1 through EventOutput7 4 Press the gt key once to select the desired EventOutput Then press the Aor V key to select On or Off 5 Press the gt key once to return to the Choose Event Output prompt 6 Press the lt key once to return back to the Main Page Digital Output Connections See page 12 9 of the Series F4 User s Manual for details on how to connect to the controller s Digital Outputs Event Board Option Your chamber may have been ordered with the Event Board option The event board contains solid state relays to control AC operated devices such as power to a test sample The solid state relays are rated for 24 to 240 VAC 3 0 Amps However TestEquity recommends derating the maximum current to 2 5 Amps The solid state relay mounting board is UL recognized CSA certified for 120 VAC max with the board mounted fuses 250 VAC max with a 22 solid copper jumper wire instead of the fuses Connecting to the Event Board 1 Unplug the chamber from the power source 2 Remove the top cover 3 The Event Board is located towards the front left corner Connect to the board as follows Event Output Event Board Terminals Event 1 amp 8 Not av
45. ith 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 115A Temperature Chamber Page 9 3 Chapter 9 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 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 These tests a
46. lade CUSTOM 100578 FM1 100578 1 ea Contactor 1P 30A Hartland Controls HCC 1XTO2AA C2 3 200237 2 ea Fuse 3 10A Bussman MDL 3 10 Fl 200130 1 ea Heat Limiter Assembly CUSTOM 222253 HL 222253 1 ea Heater Air CUSTOM 200199 HT1 200199 1 ea High Low Limit Controller Watlow PM6L1AJ AAAABBS TCR2 200301 1 ea Indicator Panel 125V Neon SoLiCo 412 2 1 N1 PLI 2 200025 2 ea Lamp 15W E14 Base Philips T22 125 130V 15W E14 LTI 200203 1 ea Line Cord 12 3 NEMA 5 20P Intl Config 80560 N A 200205 1 ea Relay DPDT 30A 120VAC Magnecraft 92S11A22D 120 C1 200258 1 ea Solid State Relay 10A 24VDC In Omron G3NE 210T US DC24 SSR1 200177 1 ea Solid State Relay 5A Omron G3NA 205B DC5 24 SSR2 3 200032 2 ea Switch SPST Rocker Carlingswitch LRA211 RA B 125N SW1 3 200023 2 ea Switch ON OFF ON Carlingswitch RC911 RA B 0 N XLR1 SW2 200275 1 ea Temperature Controller Watlow F4SH CKA0 01AE TCRI 200001 1 ea Timing Module Airotronics THCU30SC TM1 200287 1 ea Major Refrigeration Parts Description Mfr Mfr Part No Ref Part Qty UOM Accumulator CUSTOM 100345 4 100345 1 Ea Cap Tube 0 050 x 10 ft HS J B or equiv TC 50 or equiv 11 100019 4 Ea Cap Tube 0 050 x 15 in Bleed J B or equiv TC 42 or equiv 12 100019 1 ea Cap Tube 0 042 x 5 ft LS J B or equiv TC 42 or equiv 13 100340 1 ea Cascade Condenser CUSTOM 100339 16 100339 1 ea Compressor LS Tecumseh AFE13C3E IAA 201 1 383233 1 ea Condensing Unit HS Tecumseh AE2415Z AAIA 2 383232 1 ea Desu
47. le 4 7 Programming Hints 4 8 Profile Key 4 8 How to Start a Profile 4 8 How to Hold Resume a Running Profile 4 9 How to Terminate a Running Holding Profile 4 9 How to Delete or Re Name a Profile 4 9 How to Edit a Profile 4 10 Profile Examples 4 11 Digital Event Outputs 4 12 Digital Output Connections 4 12 Event Board Option 4 12 Operations Page 4 13 Setup Page 4 13 Factory Page 4 14 Computer Interface 4 14 RS 232C 4 14 Common Modbus Registers 4 14 GPIB optional 4 14 Ethernet optional 4 14 Table of Contents 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 Chapter 6 Purge Introduction GN2 Gaseous Nitrogen Installation Option TE 1009 6 1 6 1 6 1 Dry Air Installation Option TE 0017 6 1 Purge Operation 6 2 Adjusting the Purge Flow 6 2 Relief Vent 6 2 Chapter 7 Frequently Asked Questions Chapter 8 Specifications Model 115A Chamber Specifications F4 Temperature Controller Specifications Chapter 9 Maintenance Preventive Maintenance Intervals Maintenance Procedures How to clean the chamber interior and exterior 7 1 8 1 8 2 9 1 How to listen for abnormal noise or vibration How to inspect the door seal How to clean the condenser How to inspect
48. le is turned ON via Event 1 Goes to 50 C at a controlled rate of 1 C per minute Test sample is turned ON via Event 1 Will hold for 1 hour Test sample remains ON via Event 1 Goes to 0 C at a controlled rate of 1 C per minute Test sample is turned OFF via Event 1 Will hold for 1 hour Test sample remains OFF via Event 1 Jumps back to step 2 Repeats this 3 times for a total of 4 cycles After all cycles are completed establishes the condition to end on Goes to 23 C at a controlled rate of 1 C per minute Test sample is turned OFF via Event 1 End of program Controller returns to a 23 C manual set point Test sample is remains OFF via Event 1 ONDARRA UN e Notes s Guaranteed Soak Band is set at the factory for 3 0 C Can be changed in the System Menu gt Means no entry or selection is required Just scroll through this prompt to the next prompt Means prompt does not show for this step type Page 4 11 TestEquity 115A 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 seven Event Outputs which are available for customer use Output number eight is configured to control the refrigeration compressors and is not available for customer use The Event Outputs are accessed from the Main Page To control the Event Outputs 1 Press the Aor V key to posit
49. ll 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 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 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 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 Te
50. n Safety Notices A WARNING The power cord is equipped with a NEMA 5 20P grounded polarized plug To prevent a shock hazard DO NOT defeat the ground or polarization feature This device MUST be plugged DIRECTLY into a properly grounded and polarized NEMA 5 20R receptacle Due to high current demand on start up use of an extension cord is NOT recommended CAUTION The minimum clearance you should allow for proper ventilation around the chamber must be at least 6 from both the left and right side and 12 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 Operation Safety Notices 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 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 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 p
51. n 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 e The Digital Output 1 turns the chamber ON OFF with the CONDITIONING Switch in the Event position is Modbus register is 2000 GPIB optional The optional GPIB interface model TE 1052 consists of an external converter box that connects to the chamber s RS 232C interface GPIB programming resources and LabVIEW drivers can be downloaded from http Awww 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 1
52. ng 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 impact 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 if it is painted or plated Aluminum may be used However since the sp
53. ng has been damaged and that a leak has not developed Page 7 2 TestEquity 115A Temperature Chamber Chapter 7 Frequently Asked Questions 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 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 if the 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 refriger
54. o achieve faster cooling due to reliability and safety considerations so it is NOT an available option Modifying the chamber to add CO2 or LN2 will void the warranty 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 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 TestEquity 115A Temperature Chamber Page 7 1 Chapter 7 Frequently Asked Questions 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
55. 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 through 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 Pu
56. perheater Coil CUSTOM 100325 3 100325 1 ea Evaporator Coil CUSTOM 180220 17 100375 1 ea Expansion Tank CUSTOM 100346 5 100346 1 ea Expansion Valve Danfoss 068U2284 15 180395 1 ea Filter Drier Danfoss 023Z5048 14A B 100524 2 ea Oil Separator Temprite 900 18 100536 1 ea Orifice for 180395 Danfoss 068U1031 22 180396 1 ea Pressure Control HS HPCO Johnson Controls P20DB 1D 8 PS2 100341 1 ea Pressure Control LS HP Limit Johnson Controls _ P20EA 1D 7 PS1 100342 1 ea Solenoid Valve Sporlan E3S130 3 8 X 3 8 ODF 20 SV1 100010 1 ea Solenoid Valve Sporlan E3S120 1 4 X 1 4 ODF 6 SV2 100310 1 ea Solenoid Valve Coil Sporlan MKC 1 120 50 60 21 SV1 2 100011 2 ea General Parts Description Mfr Mfr Part No Ref Part Qty UOM Caster Fixed for 115A F Trio Pines 2521 02P 300610 2 ea Caster Swivel for 115A F Trio Pines 2520 02P SB 300609 2 ea Door Gasket Inner CUSTOM 300593 300593 1 ea Door Gasket Outer CUSTOM 300594 300594 1 ea Door Latch Chamber Workspace Southco A7 10 301 20 300216 1 ea Port Plug Silicone Foam 3 CUSTOM 300373 300373 2 ea Shelf CUSTOM TE 1151 TE 1151 1 ea Viewing Window CUSTOM 300691 300691 1 ea Page 9 10 TestEquity 115A Temperature Chamber Chapter 9 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 a
57. power to remote devices e Rate in degrees per minute e Temperature Set Point PID set One of five sets of PID tuning parameters Normally just leave at PID Set 1 Guaranteed Soak TestEquity 115A Temperature Chamber Page 4 5 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 through 7 to turn ON or OFF For controlling the power to remote devices e Time e PID set One of five sets of PID tuning parameters Normally just leave at PID Set 1 e Guaranteed Soak Jump Step Jump initiates another step or profile Define the Jump step 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
58. quickly as possible Will hold for 30 minutes Time will not start until chamber reaches 37 C within the 3 Guaranteed Soak Band Goes to 85 C as quickly as possible Will hold for 30 minutes Time will not start until chamber reaches 82 C within the 3 Guaranteed Soak Band Jumps back to step 2 Repeats this 3 times for a total of 4 cycles End of program Controller returns to a 23 C manual set point Test sample is remains OFF via Event 1 NYDN HRWNP Profile Summary 50 C to 0 C 1 C minute ramp 1 hour soak time 100 cycles Test sample turned ON OFF depending on step End with return to 23 C manual set point Step Step Date Choose Digit Out Time Chi PID Guar Jump to End Idle Number Type Day Time Wait for 1 2 3 4 5 6 7 H M S Rate SP Set Soak Profile Step Repeats Type SP 1 Ramp Time gt On gt gt gt gt gt gt 00 00 01 23 0 1 No 2 Ramp Rate gt On gt gt gt gt gt gt 1 0 50 0 1 No 3 Soak gt On gt gt gt gt gt gt 01 00 00 1 No 4 Ramp Rate gt Off gt gt gt gt gt gt 1 0 0 0 1 No 5 Soak gt Off gt gt gt gt gt gt 01 00 00 1 No 6 Jump gt gt gt gt gt gt gt gt Name 2 99 7 Ramp Rate gt Off gt gt gt gt gt gt 1 0 23 0 1 No 8 End Idle 23 0 Step Description Establishes a recommended initialization step Goes to 23 C as quickly as possible Test samp
59. rchaser 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 unless 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 o
60. re it is condensed back into a liquid The temperature controller cycles the low stage liquid line solenoid valve SV2 on off to control the chamber temperature When SV2 is on liquid refrigerant flows through the capillary tube and evaporator to cool the chamber When SV2 is off the flow stops The hot gas regulator 19 is adjusted to keep the suction pressure at 5 PSIG when SV2 is off This is also called bypass mode Pilot Light PL2 provides an indication on the front panel when the F4 Controller is turning SV2 is on The low stage discharge pressure is kept within safe limits with the discharge pressure switch PS1 If the discharge pressure exceeds 280 PSIG the PS1 will energize solenoid valve SV1 to dump refrigerant into the expansion tank 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 During a high temperature pull down it is possible for excessive hot gas to return to the compressor The suction line cooling thermostatic expansion valve senses the suction line temperature and injects liquid refrigerant to cool the hot gas within safe limits The high stage has a high pressure switch PS2 which turns off both compressors if the high stage discharge pressure exceeds safe limits approximately 350 psig The temperature controller has internal logic to turn the compressors on if cooling
61. ressure with a leak After verifying that there is no leak you may need to top off the charge if the pressure is too low Or if the pressure is too high you will need to bleed out some refrigerant to achieve a standby pressure of 105 psig Page 9 8 TestEquity 115A Temperature Chamber Chapter 9 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 day 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 of the kinds of parts that you may want to purchase in advance Electrical Parts Contactors Relays Heat Limiter Circulator Motor and Fan Switches Refrigeration Parts Solenoid Valve Compressors TestEquity 115A Temperature Chamber Page 9 9 Chapter 9 Maintenance Major Electrical Parts Description Mfr Mfr Part No Ref Part Qty UOM Arc Suppressor ITW Paktron 104MACQRL150 ASI 200296 1 ea Audible Alarm Floyd Bell MC 09 201 Q ALI 200005 1 ea Circulator Motor Kit w fan b
62. rofile 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 set point to a new value in a chosen period of time Define the Ramp Time step by choosing Wait for an event or process value Event outputs 1 through 7 to turn ON or OFF For controlling the power to remote devices Time in hours minutes and seconds Temperature Set Point PID set One of five sets of PID tuning parameters Normally just leave at PID Set 1 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 through 7 to turn ON or OFF For controlling the
63. rom the Main Page To enter a Static Set Point 1 Press the Aor V key to position the Cursor next to the SP1 prompt You may already be at this prompt 2 Press the gt key once You will see Static Set Point1 in the lower display with the current set point indicated below 3 Press the Aor V key to change the temperature 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 Pointi gt SP1 85 0 C 85 0 C Digitalout i A Power 50 VW v Adjusts Value lt Back gt Next TestEquity 115A 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 as long as the Power Switch is also On 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
64. rotection device The independent EZ Zone Limit Controller functions as the main protection device TestEquity 115A Temperature Chamber Page 1 1 Chapter 1 Safety 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 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 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 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 The EZ Zone Limit Controller has been properly conf
65. ser 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 6 available for customer use Open collector output OFF 42 VDC 10 uA max ON 0 2 VDC 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 8 2 TestEquity 115A Temperature Chamber Chapter 9 Maintenance Chapter 9 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 6 Months e Inspect the door seal e Clean th
66. ssume 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 74 C The ambient temperature must be approximately 23 C for the cool down times to be valid All temperature readings below are as indicated on the temperature controller The chamber interior should be empty and at ambient temperature approximately 23 C 2 Turn ONLY the MASTER Switch ON Set the Temperature Controller Set Point to 85 C Then turn the TEMP Switch ON 3 The Heat Light should be ON continuously The chamber should heat up to about 80 C and begin controlling HEAT Light cycles ON OFF within approximately 12 minutes 5 The chamber temperature should slowly increase and stabilize to 85 C It should NOT overshoot beyond 85 5 C and the compressors should NOT need to turn ON in order to maintain 85 C 6 After stabilization the chamber temperature should vary no more than 0 2 C or a total of 0 4 C 7 Let the chamber remain at 85 C for 30 minutes 8 After 30 minutes at 85 C set the Temperature Controller Set Point to 65 C The high stage compressor should turn ON within a few seconds Then the low stage compressor should turn ON within approximately 30 seconds and the HEAT Light should be OFF 10 The chamber should cool down to about 60 C an
67. stEquity has configured the Temperature Controller with the parameters as documented on the following pages TestEquity 115A Temperature Chamber Page 9 11 Chapter 9 Maintenance Series F4 Setup Parameters System Menu Main Page Go to Setup System GSB 1 Source Input 1 Guar Soak Band 1 3 0 C 5 4 if F Current Time local time Current Date local date PID Units US Reset Rate F or C C Show F or C Yes Upper Display Ch1 Autotune SP 90 Input 1 Fail 0 Open Loop Ch1 off Power Out Time 10 Sec Power Out Action Continue Analog Input Menu Main Page Go to Setup Analog Input1 Sensor Thermocouple Type T Decimal 0 0 SP Low Limit 74 0 C 101 0 if F SP High Limit 175 0 C 347 0 if F Calibration Offset 0 0 Filter Time 1 0 sec Error Latch Self Clear Digital Input Menus Main Page Go to Setup Digital Input 1 4 Name No Function Off Control Output Menus Main Page Go to Setup Control Output 1A Function Heat Choose Cycle Time Fixed Time Enter Cycle Time 3 0 sec Hi Power Limit 100 Low Power Limit 0 Main Page Go to Setup Control Output 1B Function Cool Choose Cycle Time Fixed Time Cycle Time 6 0 sec Hi Power Limit 100 Low Power Limit 0 Alarm Output Menus Digital Output Menu Main Page Go to Setup Alarm Output Main Page Go to Setup 1 2 Digital Output 1 Name No Name Yes Alarm Type Process Name Digital Out CONDITION Source Input 1 Function Event Output Latching
68. t please call TestEquity before proceeding The correct values are documented in the Series F4 Temperature Controller Setup Parameters section of this manual TestEquity 115A Temperature Chamber Page 4 13 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 unreliable 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 o
69. the chamber for signs of shipping damage Read this entire manual Select a suitable location to install the chamber Connect to a 120 VAC 60 Hz power source with a minimum 20 Amp breaker D0 PS ee eS Perform the procedure How to verify the chamber performance in the Maintenance chapter of this manual to make sure that no damage has occurred in shipment TestEquity 115A Temperature Chamber Page 2 1 Chapter 2 Installation Installation Location The chamber will produce a moderate amount of heat during normal operation Locate the chamber in an area with adequate ventilation to prevent excessive heat build up The chamber must be on a solid and level surface that is rated to hold at least 350 pounds CAUTION The minimum clearance you should allow for proper ventilation around the chamber must be at least 6 from both the left and right side and 12 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 Condensate Drain The condensate drain connection is located on the rear of the chamber This provides a way to remove condensate that may accumulate on the evaporator cooling coil during 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
70. tion and EVENT 1 is Off all chamber functions are disabled If EVENT 1 is On all chamber functions are enabled See page 4 4 for instructions on how to control the EVENT 1 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 CAUTION Remember to set CONDITION to On in the profile event prompt all programmed steps when the chamber is to be operational 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 the workspace temperature approaches and reaches the temperature set point This light corresponds to the 1A indicator on the F4 Controller COOL Light The COOL Light will illuminate when the F4 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 This light corresponds to the 1B indicator on the F4 Controller Page 3 2 TestEquity 115A Temperature Chamber Chapter 3 Operation Loading the Chamber WARNING WARNING WARNING WARNING WARNING CAUTI
71. tion from temperature set point NOTE If your chamber was ordered with the F4T Touch Screen Controller see the separate manual for that controller Summary of Chamber Operation Turn the POWER Switch ON Enter the desired temperature safety limits on the Limit Controller Enter the desired temperature set point on the Temperature Controller Load your test sample in the chamber Turn the CONDITIONING Switch ON Alternatively turn the CONDITIONING Switch to the EVENT 1 position and turn EVENT 1 on the F4 controller ON oe ee T TestEquity 115A Temperature Chamber Page 3 1 Chapter 3 Operation Front Panel Switches and Lights POWER Switch The POWER Switch controls power to the entire chamber The POWER Switch illuminates when it is ON CONDITIONING Switch ON Mode The CONDITIONING Switch enables all chamber functions When the CONDITIONING Switch is OFF and the POWER Switch is ON only the Temperature Controller and Limit Controller is operational When both the CONDITIONING and POWER Switches are ON the chamber s temperature conditioning system will function to maintain the temperature set point The CONDITIONING Switch does NOT illuminate in any position 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 Temperature Controller When the CONDITIONING Switch is in the EVENT 1 posi
72. tions 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 CAUTION NEVER select Full Defaults in the Series F4 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 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 Se
73. tup 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 115A Temperature Chamber Page 4 1 Chapter 4 Temperature Controller Temperature Controller Keys and Displays Upper Display Displays actual chamber temperature during operation Displays error information if errors occur Lower Display Displays information about the setup operation and programming of the controller Cursor Indicates selected Main Page Output Indicator Lights 1A Heat 1B Cool Alarm Output Indicator Lights Lit during an alarm state parameter or present gt SP1 value in memory Digital Out_ Communications Moves via the four Power1 Indicator Light navigation keys Lit pulsates when the controller sends Profile or receives valid Indicator Light data Lit when a rampin rofi oP Scroll Bar profile runs When blinking the profile is on hold When not lit the controller operates as a static set point controller Appears when the Up or Down Keys can reveal more information in the Lower Display Profile Key Information Key Left and Right Keys Up and Down Keys Enters the profile menu to Provides information Move right to select the Move the cursor position in the start hold resume or in the Lower Display choice to the right of the Lower Display through the terminate a profile about the c
74. unning Low charge leak Plugged capillary tube Temperature varies more than 0 5 C or 1 C total If PID parameters in temperature controller were changed If PID parameters in temperature controller are correct and only occurs in cool mode Re enter values as shipped from TestEquity Solenoid valve SV2 may be defective does not completely seal when cycled off Compressors turn on and off too frequently If compressor control parameters in temperature controller were changed If compressor control parameters in temperature controller are correct Re enter values as shipped from TestEquity Solenoid valve SV2 may be defective does not completely seal when cycled off Figure 9 1 PS2 Pressure Switch Reset Button lower rear panel removed TestEquity 115A Temperature Chamber Page 9 7 Chapter 9 Maintenance Refrigeration System Charging Instructions WARNING Repair 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 1 Repair any leaks before recharging
75. ursor cursor and proceed menus in the direction of the key selected parameter to the next screen arrow Increase or decrease a Another press toggles Move left to exit value or change a letter ina the display back to user nameable field such as the parameter events and profile names Figure 4 1 Temperature Controller Keys and Displays To navigate through the menus 1 Use the A or V key to move the cursor to line up with the item to be selected in a menu on the lower display Press the key to select the item Enter or change the value or make a choice with the A or W key Press the key to enter the value or choice Sy ae Se Repeat until you return to the original list The key again saves the value and proceeds to 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 lt key out or proceed using the key to the end of the series Page 4 2 TestEquity 115A 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

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