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532 User Manual (Previous Generation)

1. 1 0 Recommended The Derivative Approach Control determines how quickly the unit will reach the set point without overshooting The dAC creates a gently sloping exponential curve that the system must follow when approaching the set point The smaller the number the quicker the unit will allow the set point to be reached The dAC multiplied by the band determines where the beginning of the approach curve will be located A larger dAC setting will cause the beginning of the dAC curve to be further away from the set point The larger setting will control overshoots better but will cause responses to disturbances to be slower 24 CYC t 1 0 Recommended Cycle time means how often the unit can potentially be turned on and then off in succession The Humidifier may be safely turned on and off once a second DO NOT DECREASE CYCLE TIME BELOW 1 0 SECOND when operating this system The shorter the cycle time the greater the degree of precision that may be achieved with the Controller If using any other humidification system determine the minimum cycle time at which the unit can safely operate consult the manufacturer s instructions for the unit oFSt 0 0 Do Not Change The Offset Manual Reset control is only usable when the integral time int t is turned off Since the integral time is being used the offset control may be ignored SP LK OFF Locks the set point preventing unauthorized adjustment SP2 OPERATING
2. The derivative time in combination with the dAC is responsible for keeping the environment moving toward the set point following a pre determined curve set by the dAC in combination with the bAnd The curve is followed to help avoid set point overshoots Shortening the derivative time will cause the controller to recover slowly from disturbances Lengthening the derivative time may cause oscillations dAC 1 0 Recommended The Derivative Approach Control determines how quickly the unit will reach the set point without overshooting The dAC creates a gently sloping exponential curve that the system must follow when approaching the set point The smaller the number the quicker the unit will allow the set point to be reached The dAC multiplied by the band determines where the beginning of the approach curve will be located A larger dAC setting will cause the beginning of the dAC curve to be further away from the set point The larger setting will control overshoots better but will cause responses to disturbances to be slower CYC t 1 0 Recommended Cycle time means how often the unit can potentially be turned on and then off in succession The ETS 500 Watt heater may be safely turned on and off once a second DO NOT DECREASE CYCLE TIME BELOW 1 0 SECOND when operating this system The shorter the cycle time the greater the degree of precision that may be achieved with the controller If using any other heating system det
3. The amount of purification that_can be performed on the water is in direct proportion to how long it takes the water to flow through the column Slow flow rate highly purified water Fast flow rate poorly purified water 11 a Attach the open end of the tubing to the WATER IN fitting on the side of the ETS Model 532 Chamber 4 Turn on the water Set the flow rate to the pre determined amount DO NOT OPERATE THE HUMIDIFIER WITH THE FAUCET 100 OPEN High flow rates will cause the humidifier to overfill and possibly damage the unit The humidifier consumes very little water a low flow rate will be sufficient to keep the unit full 5 Turn onthe HUMIDITY STANDBY switch The Humidifier basin will begin to fill with water as soon as this switch is turned ON 2 1 3 Operation After setting up the system properly the user does not have to do anything else to operate the system Total operation will be under the control of the Model 532 Microprocessor Humidity Controller Refer to Section 3 2 Microprocessor Humidity Controller Operation Continue only after reading the Model 572 section of this manual and completing the preliminary set up 1 Remove the green Caplug covering the Chamber Vent The vent inside the chamber is the 1 orifice on the right wall the green plug will be found here The vent passes through to the outside right wall the 1 barb on the outside should remain open Set th
4. column The flow into the second column is in the opposite direction from 17 the flow in the first column The dried air under high pressure forces out any moisture in the second column through the dryer vent located internally Every 30 seconds the process reverses and the second column will perform the air drying while the first column is regenerating The flip flop process continues as long as the system is in use The dried air not used for regeneration is sent to the dryer output The output of the dryer is attached to the 3 way control valve When dry air is needed in the chamber the valve is energized and opens to allow dry air to flow into the workspace When the valve is not energized the dry air is vented 2 2 2 2 Unit Specifications 1 The average flow rate from the unit is 0 26 cfm 7 3 lpm 2 The air will be dried to a minimum dew point of 40 F with a saturated input at 90 F 3 Power 115 VAC 60 Hz 4 30Amps 230 VAC 50 Hz 2 15Amps 4 Working Pressure is 50 60 psig Dryer unit may be used with compressed air systems up to 120 psig 5 Dual column dryer uses a molecular sieve desiccant 2 2 2 3 Self Regenerating Dehumidification System Set Up The standard self regenerating dehumidification system is contained entirely within the chamber control section If house air is used a quick disconnect air fitting will be installed on the Chamber rear panel 2 2 2 4 Operation To operate the self regenerat
5. red seal on the top Make sure the seal is clean and free of debris Also check the valve internally for obstructions After cleaning carefully replace the Valve Stem and Solenoid For help with any other problems please contact ETS 4 2 2 Thermoelectric Cooling Systems Models 573 800 amp 1500 The Model 573 Series of thermoelectric cooling systems utilize the Peltier effect to reduce the temperature of a large heat sink One or more 110 cfm fans circulate the air within the workspace through the heat sink to continuously reduce the temperature Very precise temperatures can be maintained with this system by the microprocessor temperature controller The standard Model 573 800 is capable of removing up to 800 BTU hr 240 Watts hr from the Chamber The Model 573 1500 is capable of removing up to 1500 BTU hr 450 Watts from the Chamber 4 2 2 1 Thermoelectric Cooling Systems Set Up 1 The Model 573 800 amp 1500 Thermoelectric Cooling Systems operate in the same manner The Model 573 800 uses an external DC Power Supply mounted in the Chamber Control Cavity The Model 573 1500 has an internal DC Power Supply While the type of Power Supply and location of the Supply does not affect operation it is noted for maintenance purposes The Thermoelectric System is an integral part of the Chamber protruding through the rear wall The cold side of the unit is located behind the fan panel The Thermoelectric Cooler is shipped separ
6. C 210 2 F reading to 100 C 212 0 F without affecting lower temperature readings ZEro 0 0 ZEro Increases or decreases the Process Display reading linearly over the entire 0 100 C 32 212 F scale An increase of 1 0 C 1 8 F will raise all temperature values 1 0 C 1 8 F The SPAn and ZEro settings can be used to recalibrate the entire system in the field without recalibrating the Model 554 Temperature Sensor_separately ZEro should be adjusted to a low reference temperature SPAn should be adjusted to a high reference temperature 48 PERFORMANCE DATA ChEK oFF Select control accuracy monitor rEAD Var Read control accuracy monitor TECH Ct A Read Autotune cycle data Using the Autotune function is not recommended with the ETS Model 523 Temperature Controller VEr software version rSEt none Do Not Change If the unit is reset all programmed information will be lost Each parameter must be re entered manually 5 3 6 LEVL 4 Level 4 Level 4 is a hidden level This allows locked functions to be inaccessible to any unauthorized user Access to Level 4 is gained through VEr in Level 3 Press and hold and 7 for ten seconds Enter Level 4 at LoCk release and Y together LoCK LEV 2 Select from three lock options LEV 3 Locks Level 3 and 4 only Technical Functions LEV 2 Locks Levels 2 3 and 4 only Configuration and
7. ETS Model 572 Ultrasonic Humidification System The Humidifier is installed inside the Chamber Control Cavity To access the Humidifier remove the large white acrylic panel on the right hand side of the Model 532 Chamber The panel is held in place with eight 8 Phillips head 6 32 Truss Head Stainless Steel screws Refer to the Model 572 Set up instructions before using the Humidifier The Model 572 Ultrasonic Humidifier produces a fine water mist through ultrasonic action The mist is forced from the humidifier into the chamber by a small quiet air pump The integral air pump draws in ambient air This is not a closed loop system 2 1 1 Ultrasonic Humidifier Accessories 1 5 Gallon Water Tank A Tank includes plastic faucet The Faucet is attached to the lid on the inside of the tank upon arrival to the user B A 1 OD Tubing Quick Connect Fitting is attached to the Faucet 2 Water Deionizer Column A 10 Clear Sump with black Lid and 1 4 OD Tubing Connectors B The Column is filled with a mixed bed deionizing resin for water C The Column has Filter Pads on the input and output The Filter Pads are held firmly in place by a cadmium plated steel spring 2 1 2 Set Up The Model 572 Humidifier may be operated using a water tank or directly from a faucet without a tank Use Distilled or Deionized water ONLY A water de ionizing column is included suitable for up to 100 psig NOTE The life of the deionizing column
8. Output Wiring Connections Temperature Positive Pin 9 RH Positive Pin 1 Common Temp amp RH Ground Pin 4 DEHUMIDIFY IN OUT The Model 571 Desiccant Pump Dehumidification System uses a pair of Quick Disconnect fittings The Pump is inside the Chamber Control Cavity and the Desiccant Column is outside the Chamber These two fittings connect the Column into the Dehumidify loop See Section 2 2 1 Model 571 Dehumidification System COOL INPUT When using the standard Model 563 Liquid COz Cooling System a Brass Quick Disconnect Fitting is located in the top right corner of the acrylic Side Panel The Brass Male Quick Disconnect Fitting protrudes out through the acrylic panel for connection to the Cooling Gas Tank See Section 4 2 1 Model 563 Cooling System 7 1 2 Controlled Environment Description The controlled environment section of the Chamber is 13 ft 0 32 m and measures 39 Wx22 5 Dx22 H 99x57x56 cm Located against the rear wall is an aluminum screen that protrudes 4 from the rear wall and contains the heater thermal safety switch variable speed 110 cfm fan s controlled by a speed control knob located on the front panel to the left of the Standby switches and accessory power outlet Mounted to the top of the unit is a weather tight 18 Watt florescent light controlled by an ON OFF switch located on the front panel to the right of the Standby switches The thermoelectric
9. PARAMETERS The SP2 parameters can be configured in a variety of ways In the Model 532 Humidity Controller the SP2 parameters are used to tailor the Dehumidification System output for best RH control SET 2 0 0 Setpoint 2 allows the user to create a setpoint offset for the Dehumidification System It is generally not used for the Desiccant Dehumidification System bnd 2 10 0 Recommended Band 2 should generally be equal to bAnd The heating and cooling system will work within the same proportional band helping to prevent overlap in the system s operation i e the dehumidification system will have a tendency to stay off when only humidification is needed and vice versa CyC 2 1 0 Recommended Cycle time means how often the unit can potentially be turned on and then off in succession The Dehumidifier may be safely turned on and off once a second DO NOT DECREASE THE CYCLE TIME BELOW 1 0 SECOND when operating this system ETS Model 578 Self Regenerating Dehumidification System solenoid valve CyC 2 may be set as low as 0 5 second but short times will accelerate valve wear The recommended Cycle Time is 5 0 seconds To extend the life of the internal solenoid valve the cycle time may be increased but control may suffer 25 If using any other dehumidification system determine the minimum cycle time at which the unit can safely operate consult the manufacturer s instructions for the unit NOTE All fu
10. and refrigerated cooling systems are mounted to the rear wall behind the screen when the chamber is equipped with these optional cooling systems The wall separating the controlled environment from the electronics compartment is 0 25 acrylic and contains the humidity and temperature sensor dry air in out ports plus the gas cooling fitting if so equipped Located on the upper middle portion of the wall is the humidifier input The front of the compartment contains 8 20 cm glove ports that accepts either gloves or iris ports The standard Model 532 is equipped with neoprene gloves with removable size 10 hands other sizes are available Silicon rubber iris ports or no glove ports at all are optional The left hand side of the Chamber consists of a 12 W x 4 H opening with a hinged access door Towards the rear of the Chamber is a 1 25 ID access hole for feeding cables and tubing to instrumentation placed inside This hole should be sealed using a soft putty compound The front of the Chamber consists of a large door containing a pair of accordion neoprene gloves The access opening is 32 W x 14 H which enables large objects to be placed inside To the right of the front door is the humidity and temperature control module This module is easily removed for servicing by loosening the four 4 captive mounting screws Section B Humidity 2 0 HUMIDITY OPERATING SYSTEMS 2 1 Humidification System The Model 532 Chamber includes an
11. of operating systems and chamber volume The Autotune operates using the Humidifier only The Dehumidification System will be disabled during an auto tune The Tune At Setpoint At SP option is recommended with the Model 532 Chamber Occasionally the message Tune Fail will appear in the microprocessor display after the unit attempts an autotune The user will need to clear the Tune Fail message and attempt another autotune To clear the message turn the Model 532 Main Power Switch Off and then On again When power is re applied the message will no longer be displayed A Tune Fail may be caused by many variables However performing multiple Tune attempts will generally result in a successful Tune bAnd 10 0 Proportional Band for Humidifier int t 0 5 Integral Time in minutes The integral time is responsible for calculating how much output should be coming from the Heating and Cooling Systems to maintain the desired conditions der t 2 0 Derivative Time in seconds The derivative time in combination with the dAC is responsible for keeping the environment moving toward the set point following a pre determined curve set by the dAC in combination with the bAnd The curve is followed to help avoid set point overshoots Shortening the derivative time will cause the controller to recover slowly from disturbances Lengthening the derivative time may cause oscillations dAC
12. selected this setting over rides the scale resolution setting in di SP in level 2 SP3 SETTINGS The Standard ETS Model 532 does not use the SP3 Operating Mode SP3 MODES SP3 A nonE Main SP3 operating Mode SP3 b nonE Subsidiary SP3 operating Mode SP3 ADJUSTMENTS SEt 3 0 SP3 setpoint adjustment HYS 3 20 Set SP3 hysteresis 0 1 to 100 of hi SC 29 SP3 SAFETY SETTINGS brn 3 UPSC Sensor burn out break protection Select Upscale or Downscale rEV 3 3d Reverse SP3 output mode Select direct or reverse operation 3 4 CALCOMMS Computer Interface CALCOMMS is a graphic Windows based software package designed for PC supervision of CAL 3300 Controllers It offers the capability of remote adjustment instrument configuration cloning saving and retrieving instrument settings to files together with logging and charting in real time Communications uses the MODBUS protocol via a fully isolated RS485 link To gain full benefit of CALCOMMS software it is recommended that the PC be fitted with a Pentium processor although a 486 will work and is running WINDOWS 95 or Windows NT programs A minimum of 16 MB RAM is recommended to run the program slightly less is OK together with enough free hard disc space to meet logging requirements Because the controllers are stand alone they do not need PC supervision for their normal function and will continue to control the process unaffected by f
13. used to gently clean the transducer surface 6 Never leave water in the humidifier or water tank when the humidifier is not in service Always empty all water and thoroughly dry all parts of the humidifier when it is to be stored or taken out of service for any period longer than one week Do not seal the water tank in storage Leave the top off to allow the air to completely dry the tank Any residual moisture will encourage bacterial growth Never clean any parts of the humidifier with water above 120 F 2 2 Dehumidification System The Model 532 Chamber includes an ETS Model 571 Desiccant Pump Dehumidification System as the standard dehumidification system As an option the ETS Model 578 Self Regenerating Dehumidification System is available Operation of each system will be described below 2 2 1 Desiccant Pump Dehumidification System The Model 571 Dehumidification System is a closed loop system designed to reduce the relative humidity in the Model 532 Chamber to less than 10 When paired with the Model 532 Microprocessor Humidity Controller the humidity inside the chamber can be controlled to within 0 2 RH of the set point at the sensor 2 2 1 1 Description The Model 571 Dehumidification System includes a small air pump located inside the Chamber Control Cavity 2 5 lbs of indicating calcium sulfate CASO z in a clear plastic column sits outside the chamber and 1 4 O D tubing to interface the drying column
14. user needs to do is connect the Transfer Hose to the appropriate liquid CO2 cylinder with dip tube NOTE CO gas will not work The ETS Model 563 Gas Cooling System enables the temperature within the Model 532 Chamber to be reduced below ambient 1 The System utilizes Liquid CO2 Carbon Dioxide as the cooling medium COz is user supplied 50lb COz tanks are readily available from local bottled gas companies Liquid CO2with a DIP Tube must be specified The DIP Tube allows liquid to be siphoned from the bottom of the tank CO2 Gas without DIP Tube will not provide cooling with this system 2 The CO is allowed to evaporate expand from a liquid to a gas within the chamber 3 The phase change of the CO2 produces a large cooling effect The temperature directly in front of the nozzle will be near 100 F 4 The Microprocessor Temperature Controller will monitor the chamber temperature and proportionally control the Solenoid Valve to provide the appropriate amount of cooling to maintain the desired set point 4 2 1 1 Cooling System Accessories 1 Liquid COz Transfer Hose a 4 long with Braided Stainless Steel Safety Shield b Brass High Pressure Fitting for mating to Liquid COs tank c Brass Quick Disconnect female for mating to Valve Input 2 Cooling Nozzle Cleaning Tool 4 2 1 2 Liquid CO2 Tank Connections 1 Secure the COs cylinder to a wall using an approved securing belt or clamp 33 2 Failure to secur
15. will be greatly increased by using a carbon block water filter in line with the deionizer When the deionizing resin is depleted it will change from dark to light in color When it is light it must be replaced 2 1 2 1 Using the Water Tank 1 Attach the water de ionizing column to a faucet The faucet should go to the side marked IN The user must provide an appropriate faucet adapter fitting 2 Run the outlet tube to the 5 gallon water tank 3 Turnon the water The water flow rate through the purifier should not exceed 8oz every 25 30 seconds Water will pass at up to 10 gallons per hour NOTE Do not increase the flow rate The amount of purification that can be performed on the water is in direct proportion to how long it takes the water to flow through the column Slow flow rate highly purified water Fast flow rate poorly purified water 4 Fill the tank with the amount of water that can be used in 1 2 weeks of normal operation at the required operating conditions Different conditions will consume different amounts of water Leaving water in the tank longer than 1 2 weeks is not recommended Always refresh your water supply to prevent the growth of bacteria and other things that will degrade the water quality NEVER add anti bacterial growth treatment to this water it will damage the humidifier 5 Attach the provided plastic faucet to the water tank a Remove the tank lid and unscrew the faucet from
16. with the pump The tubing connects to the chamber through the quick connect fittings on the right side of the Chamber The desiccant column may be placed on top of or next to the Chamber The air pump is already wired into the Model 532 Microprocessor Humidity Controller All the user needs to do is connect the Desiccant Column into the system using the provided 1 4 OD Tubing The desiccant removes any moisture that is in the air This dried air is then forced back into the chamber The desiccant contains an indicator that turns the normally blue colored desiccant pink as it absorbs moisture When the cylinder is mostly pink the desiccant should be renewed or replaced 2 2 1 2 Unit Specifications 1 The average flow rate from the unit is 1 2 cfm 34 lpm 2 The air is dried to a dewpoint of 100 F 3 Capacity for water vapor up to 100 grams 4 Power 115 VAC 60 Hz 0 35 Amps 230 VAC 50 Hz 0 18 Amps 5 Desiccant Column is safe for working pressures up to 100 psig 6 Contents 2 lbs of 8 mesh CASQ Indicating Desiccant 7 All connections are made using 1 4 OD tubing Hose barb adapters may be provided for using 1 ID tubing as an alternative 8 Plastic cap is fitted with O Ring gasket 9 Desiccant coil spring is made of cadmium plated steel The system delivers air dried to a dew point of 100 F At room temperature the system will lower the humidity in the Model 532 Chamber from 50 RH to 12 RH in abo
17. 54 Temperature Sensor 0 5 VDC max unit C F Selects process units The process units can be changed independent of the calibration settings In other words changing the setting from C to F or any other units will not affect the calibration settings it will only change the units displayed 47 5 3 5 LEVL 3 Level 3 Level 3 is the output configuration level There are also features for calibration adjustment and performance data reading OUTPUT CONFIGURATION SP1 d SSd1 Do not change Assigns heating control to the appropriate output SP2 d SSd2 Do not change Assigns cooling control to the appropriate output SAFETY SETTINGS Burn uP SC Do Not Change Sensor burnout break protection This safety setting will protect a system if the sensor quits working All systems will be shut down if the temperature rises above the hi SC setting rEv d 1r 2d Do Not Change Select output modes Direct Reverse Select Reverse for Heating and Direct for Cooling rEv I 1n 2n Do Not Change Selects Microprocessor LED display mode Normal mode is selected for each LED In normal mode the lower left red LED will light when the microprocessor calls for the Cooling System and the upper left green LED will light when the microprocessor calls for the Heating System SPAn 0 0 SPAn adjusts the range error over the 0100 C 32 212 F temperature scale An increase of 1 0 will adjust a 99 0
18. F 0 position AC power is manually disconnected from the control relays and no humidification or dehumidification may take place until the switch is placed in the ON I position All devices in the Model 532 are connected through screw terminals on the Relay PC Board All relays and screw terminals are labeled Microprocessor Humidity Controller Operation 3 2 1 Set Point Adjust 1 Press and hold the button The letters rh will appear followed by the current set point value The set point value is displayed on the lower half of the microprocessor display 2 To adjust the set point higher press the lt button To adjust the set point lower press the 7 button 3 Release the button 3 2 2 Humidification System The Humidifier is built into the Model 532 Chamber located inside the Chamber Control Cavity To access the Humidifier remove the Side Access Panel 20 To operate the Model 532 Humidification System 1 Attach the 1 4 OD Water Tube to the fitting labeled WATER IN on the Side Interface Panel The water source may be a water tank or a pressurized water line up to 100p s i 2 Adjust the RH set point to a value above the ambient RH conditions 3 Turn onthe RH STANDBY switch on the Model 532 Front Panel This will not automatically apply power to the Humidifier Turning on the RH STANDBY switch only makes the Humidifier av
19. RS 485 COMM PORT on the Side Interface Panel 2 Connect the other end of the cable to the RS485 side of the RS 232 485 converter 3 Connect the RS232 side of the converter into the appropriate Comm Port on the PC 5 4 1 4 Software Installation Software installation instructions can be found on pp 9 11 in the CALCOMMS Manual The CALCOMMS Manual is separate from the CAL 3300 Users Manual It is the manual with the color cover 5 4 2 Operation After installing the computer program and making the appropriate wiring connections to a PC turn to p 11 in the CALCOMMS Manual This section is tiled GETTING STARTED follow the directions to begin operating the program 5 4 2 1 MODBUS Addresses The MODBUS address is found in Level C See Section 2 4 1 TEMPERATURE controller address is set to 1 at the ETS factory 5 4 2 1 Open Communications Instructions for opening communication are found on p 13 of the CALCOMMS Manual 5 4 3 Logging and Charting Instructions for operating the Logging and Charting functions of the CALCOMMS program begin on P 21 of the CALCOMMS Manual 2 20 03 52 6 0 WARRANTY Electro Tech Systems Inc warrants its equipment accessories and parts of its manufacture to be and remain free from defects in material and workmanship for a period of one 1 year from date of invoice and will at the discretion of Seller either replace or repair without charge F O B Glenside similar equipment o
20. Section A Chambers 1 0 Model 532 CONTROLLED ENVIRONMENT CHAMBER 1 1 Many applications require a controlled environment for testing fabricating and or storage The Model 532 Microprocessor Controlled Environmental Chamber is a completely integrated system fabricated from 0 375 clear and white acrylic that provides the user with undistorted visibility of the inside of the controlled environment section It includes glove ports equipment and sample access doors circulating fan s lighting and accessory power outlets The Chamber is capable of precisely controlling temperatures from 32 122 F 0 55 C and humidity from 5 98 RH NOTE The entire humidity range cannot be obtained at all temperatures The complete Model 532 measures 54 Wx22 5 Dx22 H 137x57x56 cm The addition of any of the optional cooling systems requires up to 18 46 cm more in overall depth Chambers Controllers amp Operating Systems The controllers and some of the operating systems are housed in a separate compartment on the right side of the Chamber as shown in Figure 1 0 1 Figure 1 0 1 Model 532 Controlled Environment Chamber The systems are totally accessible via the removable white acrylic panel on the right side of the Chamber Controllers and operating systems that are available with the Model 532 are as follows 1 Microprocessor Temperature Controller includes Model 554 RTD Temperature Sensor Std Integrated 500 Watt Heate
21. Technical Functions ALL Locks all functions unrestricted LEVL VEr dAtA SP LK Note Locked functions and options may be read ProG Auto Program mode auto exit switch Auto exit returns display to normal after 60 seconds of key inactivity select StAy to disable no AL oFF Disable SP2 alarm annunciator AL Select on to disable AL diS S dir Do Not Change Display sensitivity DEr S 0 1 Do Not Change Derivative sensitivity 5 3 7 LEVL A Level A Level A contains the Linear Input Scaling Settings and the SP3 Settings The SP3 operating mode is not used in the ETS Model 585 49 LINEAR SCALING AND INPUT SETTINGS C to F conversion A total of 3 settings must be modified to change scales These include An hi An Lo and unit See Level 2 For these settings there will be two sets of values in parenthesis The first one is the C setting the second is the F setting An hi 100 0 C 212 0 F Sets process display high scale value corresponding to the hi in setting An Lo 0 0 C 32 F Sets the process display low scale value corresponding to the Lo in setting hi in 10 0 Sensor Input Maximum mV The 9500P Controller uses a resistive divider of 100 to adjust the input voltage across the desired mV range A 1VDC Maximum Sensor Output 10 0mV hi in setting Lo in 0 0 Sensor Input Minimum mV dECP 000 0 Sets the resolution for the Linear Input Settings W
22. ailable to the Microprocessor Controller When the microprocessor activates the Humidifer the small green LED in the upper left corner of the RH Microprocessor display will illuminate The Humidifier misting unit and air pump will activate and begin pushing a fine water mist into the chamber 4 The Microprocessor will determine the amount of humidification needed to maintain the desired set point in the Chamber If less than the full output capacity of the Humidifier is needed the Controller will provide pulses of power to the unit to limit the output The Humidifier will be turned on and off cyclically to obtain an average humidity output lower than the full capacity of the Humidifier appropriate to maintain the desired set point in the enclosure For best results the Cycle Time CyC t should be set as short as possible See the Humidifier Manufacturers Instructions for minimum cycle time recommendations The minimum cycle time for the Humidification System is 1 0 second 3 2 3 Dehumidification System The Dehumidification System air pump is located inside the Chamber Control Cavity The Desiccant column is attached externally through the fittings labeled AIR IN and AIR OUT on the SIDE INTERFACE PANEL To operate the Model 532 Dehumidification System 1 Read the operating instructions for the Dehumidification System being used 2 Adjust the set point to a value below the ambient RH conditions 21 3 4 T
23. ailure of any part of the communications loop When used with the Model 532 Chamber the Temperature amp Humidity Microprocessor COMM PORTS are wired together in parallel One RS 485 COMM PORT common to both Controllers is located on the Side Interface Panel of the Model 532 Chamber 3 4 1 Set up and Installation See Pp 2 amp 3 in the CALCOMMS Manual 3 4 1 1 RS 485 COMM PORT RS 485 is a half duplex serial communications link and is the standard most commonly used for industrial applications due to it s high noise immunity and multi drop capability It enables a PC to communicate with up to 32 instruments over distances of over 1200 meters and requires the addition of an RS 485 interface card or a separate RS 232 485 converter The RS 485 COMM PORT is a 9 pin subminiature D female connector located on the Side Interface Panel 3 4 1 2 RS 232 485 Converter The RS 232 485 Converter will not be needed if the computer is outfitted with an RS 485 interface card 30 The converter is a 9 pin 9 pin in line style connector The converter is gray and bears the label RS 232 TO RS 485 Model 485SDD9R 3 4 1 3 Connections 1 Connect the supplied 9 pin male female sub D cable to the RS 485 COMM PORT on the Side Interface Panel 2 Connect the other end of the cable to the RS485 side of the RS 232 485 converter 3 Connect the RS232 side of the converter into the appropriate Comm Por
24. al 10 15 F 5 5 8 3 C depending on the thickness and quality of the insulation 39 3 Contact ETS for details about insulating the Model 532 Chamber 4 2 3 Variable Load Refrigerated Cooling System Model 575 The Model 575 utilizes a standard Vapor Compression Cycle to provide up to 1500 BTU hr 450 Watts hr of cooling 32 F 0 C The System is operated above freezing at all times to eliminate the defrost cycle thus enabling a more even temperature to be maintained The standard components of the system include a compressor a condenser an evaporator plus a TXV expansion valve that measures the temperature of the R 134a refrigerant leaving the evaporator and adjusts the metering of the refrigerant to maintain a more uniform cooling capacity A Hot Gas Bypass Valve that effectively short circuits the refrigerant path enables the compressor to continue to run even when cooling is not required This provides both longer compressor life and better temperature stability 4 3 2 1 Set Up The Model 575 is installed onto the Chamber in the same manner as the Model 573 800 Thermoelectric unit Depending on the application this system can be configured to not only provide cooling but also provide dehumidification down to approximately 25 RH Refer to the separate instructions that describe custom configurations 5 0 MICROPROCESSOR TEMPERATURE CONTROLLER 5 1 System Description The Microprocessor Temperature Controller
25. all with a 34 NPT plastic liquietight fitting The input is configured at the factory to accept the signal from the ETS Model 554 Humidity Temperature Sensor The Model 554 signals are both 0 1VDC equaling 0 100 RH and 0 100 C 32 212 F respectively 1 1 2 Side Interface Panel Description All user connections to the Chamber are made through the Side Interface Panel shown in Figure 1 0 2 Power connections Operating Systems connections and the Computer interface are all on this panel The Side Interface Panel is a modular layout that will be modified to meet the specifications of the Operating Systems ordered with the Model 532 Chamber Tube fittings may be added removed and power outlets may be added removed The following sections will describe the main features of the Side Interface Panel in the Standard Model 532 Configuration For other configurations specific installation instructions will be included AIR OUT HUMIDIFIER o W _ IN AIRIN WATERIN Figure 1 0 2 Model 532 Side Interface Panel 1 1 2 1 AC Power Cord Input Labeled POWER this Universal IEC power connector is located on the bottom left corner of the panel Power supplied must match Chamber Voltage All Chambers are 115 VAC 60 Hz unless otherwise specified 1 1 2 2 COMM PORT RS 485 amp Analog Voltage Outputs The Comm Port is the 9 pin subminiature D jack sub D located directly above the AC Power Cord Input The Comm Port is comm
26. ally turn on the Dehumidification System Turning on the HUMIDITY STANDBY switch only makes the Dehumidification System available to the Microprocessor Controller When the microprocessor tells Dehumidification System to activate the large red LED on the lower left side of the microprocessor will light The internal air pump will begin moving The pump will draw moist air out of the Chamber and force it through the desiccant column The dried air will then be returned to the chamber The microprocessor will determine the amount of drying needed to maintain the desired set point If less than the full drying capacity of the Desiccant Dehumidification System is needed the controller will provide pulses of power to the unit to limit the quantity of dried air coming into the chamber The pump will be turned on and off cyclically to obtain an average input of dried air less than the full capacity of the Dehumidification System To achieve a smooth even dehumidification process the Humidity Microprocessor Cycle Time 2 CYC 2 should be set to 1 0 second Longer cycle times will create longer gaps between dried air pulses DO NOT SET THE CYCLE TIME LESS THAN 1 0 SECOND Shorter pulses may damage the Model 571 and the Model 524 2 2 2 Self Regenerating Dehumidification System The Model 578 Self Regenerating Dehumidification System is capable of drying the Model 532 Chamber from 50 RH to 12 RH in less than 3 hours at room temperat
27. ately and must be installed onto the rear wall of the Chamber by the user The Thermoelectric Cooler is a solid state heat pump It is virtually maintenance free with no filters to change The only moving parts are the fans As air inside the chamber is drawn through the interior heat sink by the internal thermoelectric fan this fan is separate and different form the chamber circulation fans heat is removed from the air and conducted through the thermoelectric modules to the exterior heat sink The heat is removed from the exterior heat sink and dissipated into the 37 atmosphere by a pair of external fans DO NOT BLOCK AIRFLOW TO THE REAR OF THE UNIT The hot air must be allowed to dissipate Increased hot side temperature Decreased cooling effect 4 2 2 2 Installation The Model 532 Chamber is shipped with mounting studs already installed Place the supplied gasket over the studs then fit the cooling to the rear wall Tighten the supplied nuts sufficiently to provide even compression of the gasket However before installing the unit onto the chamber the power wires must first be connected to the circulation fan s and Thermoelectric Modules The ORANGE Line or VDC WHITE ORANGE Neutral or VDC and GREEN Ground wires are for the Thermoelectric Module power The Circulation Fan wires are BLUE Line and YELLOW RED Neutral All of the wires are connected by slipping the male female connectors from the Cooler onto the resp
28. be added to the chamber Adding insulation will reduce heat loss and aid in stabilizing the chamber temperature especially at very low temperatures 4 2 1 6 Maintenance and Troubleshooting The Model 563 Liquid CO2 Cooling System should provide years of trouble free service Other than changing CO2 tanks when depleted very little servicing should be required Before performing any service the pressurized CO2 must be bled from the system See section 4 2 1 4 1 Clearing a clogged Cooling Nozzle Occasionally the Cooling Nozzle may become clogged due to impurities in the COs small pieces of dirt or small pieces of Teflon sealing tape breaking free and lodging in the nozzle Item 2 the Cooling Nozzle Cleaning Tool is provided to help clear such blockages If the Nozzle is extremely clogged it may be necessary to completely remove the Nozzle clear the orifice and reinstall it If the system is not producing a cooling effect after clearing the Nozzle make sure the CO tank is full and the manual valve is fully open If the Valve will not fully close when the system is turned OFF a small piece of dirt etc may have lodged in the valve seal The valve may be taken apart to inspect the seal 4 Remove AC Power from the unit 36 8 9 Remove the Solenoid from the Valve Stem Using a wrench carefully unscrew the valve stem from the upper portion of the valve body The stem contains a plunger with a round
29. ctly to the chamber Never attempt to combine the humidifier output with another air or gas source 2 Always provide a vent on the chamber being humidified 3 Clean the ultrasonic transducer frequently and thoroughly Any dirt or particle build up on the transducer will cause stress to the electronics Once the electronics overheat and stop working the humidifier must be replaced With frequent cleaning the electronics should operate reliably for many years 4 Use distilled or deionized water only 2 1 3 2 Maintenance amp Cleaning 1 Always unplug the Model 532 Chamber before cleaning Humidifier 2 Empty the unit of all water Siphon water out or soak up with a sponge 3 Disconnect or remove water tank or tap water source 13 4 Clean the surface of the transducer using distilled vinegar and a soft clean cloth This is very important f the transducer is not kept clean it will fail Using distilled or deionized water keeps the build up to a minimum but cleaning with distilled vinegar cannot be ignored NOTE Do not use any tools with metal parts or sharp edges to clean the transducer Scratching the transducer may cause fatal damage to the unit 5 To clean thick or heavy deposits pour a small amount of vinegar into the humidifier until the transducer surface is completely covered Let stand for 30 60 minutes Wipe clean with a soft cloth If further cleaning is needed a soft plastic bristle brush may be
30. e Controller is fitted with the COMMS option RS 485 computer interface card Level C is responsible for the communication protocol for the unit when interfacing with a PC The values in Level C must match the values on the computer screen to establish communication Addr 1 Instrument Communication Address This address may be changed to any number suitable to the user bAud 9600 The baud rate should be set as high as possible dAtA 18n1 Do Not Change The data format should not change DbuG off Do Not Change Debugging is an advanced feature that will not be covered in this manual 43 5 3 3 LEVL 1 Level 1 Level 7 is the programming level The Proportional Integral and Derivative controls are adjusted here The combination of PID values is virtually limitless This allows the controller to be used in a wide variety of applications However this flexibility can also lead to confusion when programming the controller in the Model 532 s limited mode of operation To avoid confusion this section will discuss which parameters may be adjusted which parameters should not be adjusted All Parameters are programmed at the ETS Factory to match the Operating Systems shipped with the Chamber The programmed values will control the Chamber within specifications For tighter control the user may want to adjust the values The values listed here are for standard chambers only Non standard units may have different valu
31. e Menu on Level 1 in the tunE function If using the CalGomm Computer Program see the CALCOMM section of the Manual To scroll to different parameters within a Level press the button to scroll right and the 7 button to scroll left To change a parameter or change Levels press and hold the button Press the lt or Y buttons to change the parameter 22 4 All factory programmed values listed here are optimized for use with the Dehumidification and Ultrasonic Humidification Systems Other systems may require different settings If the Model 532 Chamber has different systems the information programmed into the Controller will be different Information on the specific program should be provided separately if not contact ETS 5 To exit the menu press and hold lt for three seconds 3 3 2 LEVL C Level C Level C is only visible when the unit is fitted with the COMMS option RS 485 computer interface card Level C is responsible for the communication protocol for the unit when interfacing with a PC The values in Level C must match the values on the computer screen to establish communication Addr 2 Instrument Communication Address This address may be changed to any number suitable to the user bAud 9600 The baud rate should be set as high as possible dAtA 18n1 Do Not Change The data format should not change DbuG off Do Not Change Debuggi
32. e Model 532 Humidity Controller set point to a value above the ambient humidity Refer to Section 3 2 1 Microprocessor Humidity Controller Operation Turn on the HUMIDITY STANDBY switch on the front of the Model 532 Controller This will not automatically turn on the Humidifier Turning on the HUM STANDBY switch only makes the humidifier available to the Microprocessor Controller When the microprocessor tells the Humidifier to activate the small green LED in the upper left corner of the microprocessor will light The Humidifier will begin producing a mist and forcing it into the chamber through the Humidity Input Barb 4 The microprocessor will determine the amount of humidification needed to maintain the desired set point If less than the full capacity of the Humidifier is needed the controller will provide pulses of power to the unit to limit the output The Humidifier will be turned on and off cyclically to obtain an average humidity output lower than the full capacity of the Humidifier NOTE To obtain a smooth even humidity output the Model 532 Cycle Time CYC t should be set to 1 0 second Longer cycle times will create longer gaps between humidification pulses DO NOT SET THE CYCLE TIME LESS THAN 1 0 SECOND Shorter pulses may damage the Model 572 2 1 3 1 Operating Precautions The Model 572 should operate reliably if the following precautions are observed 1 Always run the humidifier dire
33. e buyer is expected to expressly waive rights to any warranty other than that stated herein ETS must be notified before any equipment is returned for repair ETS will issue an RMA Return Material Authorization number for return of equipment Equipment should be shipped prepaid and insured in the original packaging If the original packaging is not available the equipment must be packed in a sufficiently large box or boxes if applicable of double wall construction with substantial packing around all sides The RMA number description of the problem along with the contact name and telephone number must be included in formal paperwork and enclosed with the instrument Round trip freight and related charges are the owner s responsibility WARNING WOODEN CRATES MUST NOT BE USED PACKAGING OF DELICATE INSTRUMENTS IN WOODEN CRATES SUBSTANTIALLY INCREASES THE CONTENT S SUSCEPTIBILITY TO SHOCK DAMAGE DO NOT PLACE INSTRUMENTS OR ACCESSORIES INSIDE OTHER INSTRUMENTS OR CHAMBERS ELECTRO TECH SYSTEMS INC WILL NOT ASSUME RESPONSIBILITY FOR ADDITIONAL COST OF REPAIR DUE TO DAMAGE INCURRED DURING SHIPMENT AS A RESULT OF POOR PACKAGING 53
34. e the cylinder to a wall or other suitable stationary object may result in serious injury to personnel should COs cylinder fall over 3 The CO cylinder contains liquid carbon dioxide under extremely high pressure 800 1000 psi Care must be exercised at all times when working with this cylinder The manual valve on top of the cylinder should be closed fully clockwise when the cooling system is not in use 4 Although COz is non toxic it can cause asphyxiation if not used in areas with adequate ventilation The Model 532 Chamber is equipped with a Chamber Vent 1 White Hose Barb located in the middle of the Black Panel on the right side of the Chamber The spent CO2 gas will escape from the Chamber Vent and dissipate into the room atmosphere To vent the gas outside of the room or building connect an appropriate length of 1 ID tubing to the Vent Hose Barb The open end of the tubing should be exhausted outside the working environment 5 Connect the Transfer Hose to the COs Tank and Valve A Connect the Female Quick Disconnect fitting to the Male Quick Disconnect fitting Pull back on the collar of the female fitting and place it onto the male fitting release the collar These fittings should mate to form a leak free seal B Connect the other end of the transfer hose Large Brass Fitting to the CO Cylinder Tighten the fitting onto the tank using a wrench 4 2 1 3 Operation The user does not have to do anything else to o
35. ective female male connectors inside the chamber All of the wires should be tagged and marked to indicate the appropriate connections After connecting all of the wires the Cooler may be placed onto the studs and secured to the chamber using the provided nuts and washers 4 2 2 3 Operation 1 The Thermoelectric cooler operation is divided into two parts 7 a The 115 VAC internal thermoelectric circulation fan b The Power Supply that provides power to the thermoelectric modules and the external 24 VDC fans 2 Turn on the TEMP STANDBY switch on the front of the Model 523 Controller This will allow the 24 VDC Power Supply to become available to the Temperature Microprocessor Controller in both the Model 573 888 amp Model 573 1500 3 Adjust the Temperature Microprocessor Controller set point to a value below the ambient temperature see Controller Operation When the Microprocessor determines that cooling is needed the external fans will begin moving the internal heat sink will begin to cool and the external heat sink will begin to warm 38 4 The Microprocessor will allow the Thermoelectric Module should be operated in on off mode only Therefore CYC 2 See Section 2 4 2 SP2 Operating Parameters will be set to On Off Bnd 2 See Section 2 4 2 SP2 Operating Parameters sets the range in which the TE Module will operate It will usually be set to a value of 2 0 C If the actual temperature differs from the se
36. ent temperature 2 Turnon the TEMP STANDBY switch on the front of the Control Panel This will not automatically apply power to the heaters Turning on the TEMP STANDBY switch only makes the heaters available to the Microprocessor Controller When the microprocessor activates the heaters the small green LED in the upper left corner of the Temperature Microprocessor display will illuminate The red neon light on the Fan Panel will also illuminate to indicate that the heaters are receiving power The Microprocessor will determine the amount of heating needed to maintain the desired set point in the enclosure If less than the full output capacity of the Heater is needed the Controller will provide pulses of power to the unit to limit the output The heater will be turned on and off cyclically to obtain an average temperature output lower than the full capacity of the heater appropriate to maintain the desired set point in the Chamber For best results the Cycle Time CyC t should be set as short as possible The minimum cycle time for the 500 Watt Heater in the Model 532 Chamber is 1 0 second Shorter cycle times may damage the Controller 41 5 2 3 Cooling System Model 563 Liquid Carbon Dioxide Cooling System may be disabled if it is not needed or if not connected to a gas tank In LEVEL 2 of the Programming Menu adjust SP1 P from Cool to nonE This will manually disable only the cooling system and p
37. ermine the minimum cycle time at which the unit can safely operate slightly shorter cycle times may be used for smaller heaters oFSt 0 0 Do Not Change The Offset Manual Reset control is only usable when the integral time int t is turned off Since the integral time is being used the offset control may be ignored SP LK OFF Locks the set point preventing unauthorized adjustment SP2 OPERATING PARAMETERS The SP2 parameters can be configured in a variety of ways In the Model 532 Temperature Controller the SP2 parameters are used to tailor the Cooling System output for best temperature control The SP2 parameters are all shown in C SET 2 0 0 Setpoint 2 allows the user to create a setpoint offset for the Cooling System It is generally not used for the Gas Cooling System When a 45 Thermoelectric Cooler or Refrigerated cooling system is used this setting may be increased or decreased to determine the point at which the Cooling System will activate These systems are operated in On Off mode instead of within a proportional band bnd 2 2 0 Band 2 should generally be equal to bAnd The heating and cooling system will work within the same proportional band helping to prevent overlap in the system s operation i e the cooling system will have a tendency to stay off when only heating is needed and vice versa When a Thermoelectric Cooler or Refrigerated cooling system is used this setting ma
38. es than those listed here The following settings are approximations that will allow any user to achieve good temperature control at any set point approximately 1 0 C depending on the specific conditions However as the user becomes familiar with each parameter and it s effect on temperature control the user will be able to program the unit to control within ever tightening tolerances Control of 0 2 C or better is achievable with this system tunE oFF The Autotune function may be used to help determine the optimum operating conditions for a given set of operating systems and chamber volume The Autotune operates using the Heater only The Cooling System will be disabled during an auto tune The Tune At Setpoint At SP option is recommended with the Model 532 Chamber Occasionally the message Tune Fail will appear in the microprocessor display after the unit attempts an autotune The user will need to clear the Tune Fail message and attempt another autotune To clear the message turn the Model 532 Main Power Switch Off and then On again When power is re applied the message will no longer be displayed bAnd 1 0 Proportional Band for the Heaters int t 4 1 Integral Time in minutes The integral time is responsible for calculating how much output should be coming from the Heating and Cooling Systems to maintain the desired conditions der t 14 0 Derivative Time in seconds 44
39. h reconnect the transfer hose Turn OFF the COOL switch on the Temperature Controller This will close the Cool Valve After the system is turned OFF open the manual valve on top of the CO2 cylinder The Transfer Hose and Cool Valve will now be pressurized If any leaks occur close the manual valve on top of the COz cylinder Then tighten any fittings that are leaking Open the manual valve and recheck for leaks 4 2 1 5 Specifications and Performance 1 Cooling Capacity 6 The Model 563 CO Gas Cooling System when used in the ETS Model 532 Chamber with a full 50 Ib CO2 tank will provide cooling to at least 32 F 0 C The total CO2 consumption rate for the system depends upon the temperature that is being maintained The following chart shows the approximate consumption rate for the system at different temperatures assuming a full 50lb COs tank and room ambient temperature of 72 F 23 C 35 Temperature Set point F Time approx to empty COz tank 62 F 16 7 C 52 F 11 1 C 42 F 5 6 C 32 F 0 C NOTE These consumption rates are for maintaining the shown temperatures When lowering the temperature from room ambient to the set point temperature the consumption rate will be higher The consumption rate will be as shown once the set point temperature is reached 2 To lower the CO2 consumption rate and extend the operating time per tank insulation should
40. hen the Linear Input option has been selected this setting over rides the scale resolution setting in di SP in level 2 SP3 SETTINGS The Standard ETS Model 585 does not use the SP3 Operating Mode SP3 MODES SP3 A nonE Main SP3 operating Mode SP3 b nonE Subsidiary SP3 operating Mode SP3 ADJUSTMENTS SEt 3 0 SP3 setpoint adjustment HYS 3 20 Set SP3 hysteresis 0 1 to 100 of hi SC SP3 SAFETY SETTINGS brn 3 UPSC Sensor burn out break protection Select Upscale or Downscale rEV 3 3d Reverse SP3 output mode Select direct or reverse operation 50 5 4 CALCOMMS Computer Interface CALCOMMS is a graphic Windows based software package designed for PC supervision of CAL 3300 amp 9500 Controllers It offers the capability of remote adjustment instrument configuration cloning saving and retrieving instrument settings to files together with logging and charting in real time Communications uses the MODBUS protocol via a fully isolated RS485 link To gain full benefit of CALCOMMS software it is recommended that the PC is fitted with a Pentium processor and running WINDOWS 95 98 or NT programs A minimum of 16 MB RAM is recommended to run the program 32 MB for Windows NT together with enough free hard disc space to meet logging requirements As an option the more sophisticated CALgrafix Process Monitoring and Configuration Software is available It requires a minimum 450 MHz Pe
41. icroprocessor calls for the Dehumidification System and the upper left green LED will light when the microprocessor calls for the Humidification System SPAn 0 0 SPAn adjusts the range error over the 0 100 RH scale 27 An increase of 1 0 will adjust a 99 RH reading to 100 RH without affecting lower RH readings ZEro 0 0 ZEro Increases or decreases the Process Display reading linearly over the entire 0 100 RH scale An increase of 1 0 will raise all RH values 1 0 The SPAn and ZEro settings can be used to recalibrate the entire system in the field without recalibrating the Model 554 Humidity Sensor separately Reference points of 12 0 ZEro and 75 5 SPAn RH are recommended when _ calibrating the System Humidity Sensor calibration should be performed at 23 0 C 73 3 F only PERFORMANCE DATA ChEK oFF Select control accuracy monitor rEAD Var Read control accuracy monitor TECH Ct A Read Autotune cycle data Using the Autotune function is not recommended with the ETS Model 524 RH Controller VEr software version rSEt none Do Not Change If the unit is reset all programmed information will be lost Each parameter must be re entered manually 3 3 6 LEVL 4 Level 4 Level 4 is a hidden level This allows locked functions to be inaccessible to any unauthorized user Access to Level 4 is gained through VEr in Level 3 Press and hold and 7 for te
42. ing system proceed as follows 1 Open the Chamber Vent by removing the supplied 1 green Caplug 2 The Chamber Vent inside of the chamber is the 1 orifice on the right wall the green plug should be removed from the orifice The vent 18 passes through to the outside right wall the 1 barb on the outside should also remain open The Model 578 is a positive pressure system Without adequate ventilation the system will pressurize the chamber Pressurizing the chamber is not recommended and may cause damage 3 Set the Microprocessor Humidity Controller set point to a value below the ambient humidity 4 Turn on the HUMIDITY STANDBY switch on the front of the Model 532 This will do two things a It will activate the high pressure pump and the dual column dryer They will begin producing dry air as soon as the HUMIDITY STANDBY switch is turned on However no dry air will be allowed into the chamber workspace until the 3 way control valve is energized b Turning on the HUMIDITY STANDBY switch makes the 3 way control valve available to the Microprocessor Controller When the microprocessor tells the control valve to energize the large red LED in the lower left corner of the Humidity Microprocessor will light The valve will open and dried air will flow into the chamber workspace The microprocessor will determine the amount of drying needed to maintain the desired set point If less than the fu
43. ld a sensor fail record typical SP1 P values beforehand PL 1 100 Set SP1 power limit percentage 100 to 0 of the duty cycle 46 Limits maximum SP1 heater output power during warm up and in proportional band PL 2 100 Set SP2 power limit percentage 100 to 0 of the duty cycle Limits maximum SP2 cooling output power during warm up and in proportional band SP2 OPERATING MODES SP2 A Cool Main SP2 operating mode Must remain in Cool mode properly to operate the cooling system If use of the Model 563 Liquid Carbon Dioxide System is not needed it is recommended that SP2 A be set as nonE The output to the cool valve will be disabled and will not click on and off unnecessarily SP2 b nonE Subsidiary SP2 mode latch sequence Non linear dehumidify proportional band INPUT SELECTION AND RANGING C to F conversion A total of 3 settings must be modified to change scales These include An hi An Lo See Level A and unit For these settings there will be two sets of values in parenthesis The first one is the C setting the second is the F setting diSP 0 1 Select display resolution With Linear Input selected Lin deCP in Level A supercedes this setting hi SC 212 0 Adjusts the maximum allowed value for the setpoint Lo SC 0 0 Adjusts the minimum allowed value for the setpoint inPt Lin Selects Linear Input Voltage setting for the ETS Model 5
44. ling System instructions for cycle time recommendations ETS Model 563 minimum cycle time is 1 0 seconds ETS Model 573 minimum cycle time is On Off ETS Model 577 minimum cycle time is On Off ETS Model 575 minimum cycle time is On Off 42 5 3 Programming the Microprocessor Controller 5 3 1 Accessing the Programming Menu 1 5 To access the Controller Program Menu press the and Y buttons simultaneously for three 3 seconds The controller will enter the Menu on Level 1 in the tunE function If using the CalComm Computer Program refer to the CALCOMM section of the Manual To scroll to different parameters within a Level press the button to scroll right and the 7 button to scroll left To change a parameter or change Levels press and hold the button Press the lt or Y buttons to change the parameter All factory programmed values listed here are optimized for use with the ETS Model 563 Liquid Carbon Dioxide Cooling System and the ETS Model 564 500 Watt Heating System Other systems may require different settings If the Model 532 Chamber has different systems the information programmed into the Controller will be different Information on the specific program should be provided separately if not contact ETS To exit the menu press and hold lt for three seconds 5 3 2 LEVL C Level C Level C is only visible when th
45. ll drying capacity of the Self Regenerating Dehumidification System is needed the controller will provide pulses of power to the Control Valve to limit the quantity of dried air coming into the chamber The controller will open and close the Control Valve cyclically to obtain an average input of dried air less than the full capacity of the system To achieve a smooth even dehumidification process the Humidity Microprocessor Cycle Time 2 CYC 2 should be set to a low value However a short cycle time will prematurely wear out the control valve As a compromise CYC 2 should be set to 5 0 seconds Shorter cycle times will afford better low humidity control at the desired set point but at the risk of accelerating valve wear 3 0 MICROPROCESSOR HUMIDITY CONTROLLER 3 1 3 2 System Description The Model 532 Microprocessor Humidity Controller with the Model 554 temperature compensated RH Sensor is capable of controlling the relative humidity in the Model 532 Chamber by supplying a proportionally controlled power output to the Humidification System and or Dehumidification System The Controller provides low voltage 6 VDC control signals to the HEAT and COOL solid state relays located on the RELAY PC Board When the low voltage signal is applied to the relay Input the Output of the relay closes and allows AC Power to flow to the connected device When the RH STANDBY switch on the Front Panel is in the OF
46. n seconds Enter Level 4 at LoCk release and Y together LoCK LEV 2 Select from three lock options LEV 3 Locks Level 3 and 4 only Technical Functions LEV 2 Locks Levels 2 3 and 4 only Configuration and Technical Functions ALL Locks all functions unrestricted LEVL VEr dAtA SP LK Note Locked functions and options may be read 28 ProG Auto Program mode auto exit switch Auto exit returns display to normal if 60 seconds of key inactivity select StAy to disable no AL oFF Disable SP2 alarm annunciator AL Select on to disable AL diS S dir Do Not Change Display sensitivity DEr S 0 1 Do Not Change Derivative sensitivity 3 3 7 LEVL A Level A Level A contains the Linear Input Scaling Settings and the SP3 Settings The SP3 operating mode is not used in the ETS Model 585 LINEAR SCALING AND INPUT SETTINGS An hi 100 0 Sets process display high scale value corresponding to the hi in setting An Lo 0 0 Sets the process display low scale value corresponding to the Lo in setting hi in 10 0 Sensor Input Maximum mV The 9500P Controller uses a resistive divider of 100 to adjust the input voltage across the desired mV range A 1VDC Maximum Sensor Output 10 0mV hi in setting Lo in 0 0 Sensor Input Minimum mV dECP 000 0 Sets the resolution for the Linear Input Settings When the Linear Input option has been
47. nctions in Level 2 3 amp 4 are locked and may not be altered unless unlocked See section 2 4 5 Level 4 3 3 4 LEVL 2 Level 2 Level 2 is the controller configuration level The controller is capable of being configured in an unlimited number of ways However the parameters needed to control the Temperature Operating Systems with the ETS Model 554 Humidity Sensor are programmed and locked MANUAL CONTROL MODES SP1 P Read SP1 output percentage power Read only hAnd off SP1 Manual percentage power control For manual control should a sensor fail record typical SP1 P values beforehand PL 1 100 Set SP1 power limit percentage 100 to 0 of the duty cycle Limits maximum SP1 humidifier output power during warm up and in proportional band PL 2 100 Set SP2 power limit percentage 100 to 0 of the duty cycle Limits maximum SP2 dehumidifier output power during warm up and in proportional band SP2 OPERATING MODES SP2 A Cool Main SP2 operating mode Must remain in Cool mode to properly operate the Dehumidification System SP2 b nonE Subsidary SP2 mode latch sequence Non linear dehumidify proportional band INPUT SELECTION AND RANGING The following settings are used to calibrate the input of the unit for use with the ETS Model 554 RH Sensor 26 diSP 0 1 Select display resolution With Linear Input selected Lin deCP in Level A supercedes this set
48. ng is an advanced feature that will not be covered in this manual 3 3 3 LEVL 1 Level 1 Level 1 is the programming level The Proportional Integral and Derivative controls are adjusted here The combination of PID values is virtually limitless This allows the controller to be used in a wide variety of applications However this flexibility can also lead to confusion when programming the controller in the Model 532 s limited mode of operation To avoid confusion this section will discuss which parameters may be adjusted which parameters should not be adjusted All Parameters are programmed at the ETS Factory to match the Operating Systems shipped with the Chamber The programmed values will control the Chamber within specifications For better control the user may adjust the values The values listed here are for standard chambers only Non standard units may have different values than those listed here The following settings are approximations that will allow any user to achieve good RH control at any set point approximately 2 0 depending on the specific conditions However as the user becomes familiar with each parameter 23 and it s effect on RH control the user will be able to program the unit to control within ever tightening tolerances Control of 0 2 RH or better is achievable with this system tunE oFF The Autotune function may be used to help determine the optimum operating conditions for a given set
49. ntium Processor with 128MB RAM and running Windows 98 ME NT 2000 Because the controllers are stand alone they do not need PC supervision for their normal function and will continue to control the process unaffected by failure of any part of the communications loop When used with the Model 532 Chamber the Temperature amp Humidity Microprocessor COMM PORTS are wired together in parallel One RS 485 COMM PORT common to both Controllers is located on the Side Interface Panel of the Model 532 Chamber 5 4 1 Set up and Installation See Pp 2 amp 3 in the CALCOMMS Manual 5 4 1 1 RS 485 COMM PORT RS 485 is a half duplex serial communications link and is the standard most commonly used for industrial applications due to it s high noise immunity and multi drop capability It enables a PC to communicate with up to 32 instruments over distances of over 1200 meters and requires the addition of an RS 485 interface card or a separate RS 232 485 converter The RS 485 COMM PORT is a 9 pin subminiature D female connector located on the Side Interface Panel 5 4 1 2 RS 232 485 Converter The RS 232 485 Converter will not be needed if the computer is outfitted with an RS 485 interface card 51 The converter is a 9 pin 9 pin in line style connector The converter is gray and bears the label RS 232 TO RS 485 Model 485SDD9R 5 4 1 2 Connections 1 Connect the supplied 9 pin male female subminiature D cable to the
50. oint Power will be applied to the heater as a series of time proportioned pulses See Section 2 2 Microprocessor Temperature Controller Operation for details The Electric Heating Element and Indicator Light are located on the Fan Panel the Heater is hidden from view The Fan Panel is the white metal panel inside the Chamber workspace on the rear wall The Heater Indicator Light will illuminate to indicate when power is being applied to the Heater The Microprocessor LED s will illuminate at the same time A thermal safety switch also on the fan panel is connected in series with the heater Power to the heater will be cut off if the temperature within the chamber exceeds 135 F The Acrylic Chamber will begin to melt at 150 F Cooling Systems The Model 532 Chamber includes the ETS Model 563 Liquid Carbon Dioxide Cooling System as a standard feature Other cooling options include ETS Model 573 800 800 BTU hr Thermoelectric Cooling System ETS Model 573 1500 1500 BTU hr Thermoelectric Cooling System ETS Model 575 Variable Load Refrigerated Cooling System 32 The implementation and operation of each of these systems is described in detail below 4 2 1 Model 563 Liquid CO Cooling System The Liquid COz Cooling System is standard and is already installed onto the Model 532 Chamber The Solenoid Control Valve is wired into the Relay PC Board which is controlled by the Microprocessor Temperature Controller All the
51. on to both the Temperature and Humidity Microprocessor Controllers Comms access to either or both units is gained through this jack This Jack is used for the Analog Chart Recorder Output and the RS 485 Computer Interface See Sections 3 4 amp 5 4 CALCOMMS Computer Interface 1 RS 485 Computer Interface The RS 485 portion of the Comm Port will only be active if the Controller is fitted with the COMMS option see section 1 2 1 LEVL C The COMMS option allows the microprocessor to communicate with a PC running the CALCOMMS software The COMMS option must be specified at the time of purchase 1 1 2 3 1 1 2 4 RS 485 Wiring Connections Tx Rx Pin 7 Tx Rx Pin2 Ground Pin 4 If using the CALCOMM computer program see the CALCOMM section of this manual for set up instructions 2 Analog Voltage Output The Analog Voltage Output will always be active Temperatures of 0 100 C 32 212 F correspond to an output of 0 1VDC Relative Humidity of 0 100 RH corresponds to an output of 0 1VDC The analog output is a direct voltage reading from the sensors This jack is configured as an Analog Voltage 0 1VDC Output for monitoring the temperature and or humidity performance using a chart recorder or any other analog input device The minimum acceptable input impedance for the analog recording device is 20K ohms An input impedance lower than 20K ohms will affect sensor accuracy for the entire system Analog Voltage
52. ow the Temperature Controller to the left of the Fan Power Knob This switch disconnects all power going to the Chamber Systems I is ON O is OFF FAN The Fan Speed Control Knob is located to the right of the Power Switch In the ETS Model 532 Environmental Control Chamber this switch controls the speed of the circulation fans inside the cabinet workspace STANDBY SWITCHES 1 1 1 2 3 TEMP STANDBY Allows the user to manually disable the Temperature Control System Pushing this switch into the Off 0 position manually disconnects the AC Power from all of the Temperature Control Relays The Microprocessor will still show the Temperature in the display the set point may still be adjusted the internal LED s will still illuminate and the low voltage control signal will still be sent to the solid state Control Relays The Relay Output will close but AC Power will no longer be connected to the Relay therefore the Temperature systems will not receive AC Power and will not operate RH STANDBY Allows the user to manually disable the Humidity Control System Pushing this switch into the Off 0 position manually disconnects the AC Power from all of the Humidity Control Relays The Microprocessor will still show the Relative Humidity in the display the set point may still be adjusted the internal LED s will still illuminate and the low voltage con
53. perate the system Total operation will be under the control of the Microprocessor Temperature Controller The Temperature Controller is a PID Microprocessor with a time proportioned AC voltage output Refer to Section 5 2 Microprocessor Temperature Controller Operation for a full description of operation The user should periodically monitor the status of the COs cylinder The user should also periodically monitor the cooling performance of the system to check for an exhausted CO gt tank 4 2 1 4 Changing COz2 Tank Before disconnecting any fittings or attempting to change the tank all of the COz must be vented from the system Venting the CO will relieve any o1 amp pressure in the system Failure to bleed the system may result in injury To bleed the pressure from the line 1 Turn ON the Cooling Valve Turn on the COOL switch on the front panel of Temperature Controller and adjust the set point to the lowest possible setting Wait for the Cool Valve to turn ON While the Cool Valve is open turn off the manual valve on top of the CO2 tank This will shut off the CO2 supply to the system The CO will bleed out of the Cooling Nozzle into the chamber When all the COz is out of the system the flow of gas from the Nozzle will stop Using a wrench disconnect the Transfer Hose loosen the large brass fitting from the COo tank Replace the empty tank with a fresh Liquid CO2 tank Then using a wrenc
54. r Std Choice of Cooling Systems a Model 563 Liquid CO2 Cooling System Std b Model 573 800 BTU Thermoelectric Cooling System C Model 575 Variable Load Refrigerated Cooling System d Model 577 1500 BTU Thermoelectric Cooling System Microprocessor Humidity Controller includes Model 554 Temperature Compensated RH Sensor Std Model 572 Ultrasonic Humidification System Std Choice of Dehumidification Systems a Model 571 Desiccant Pump Dehumidification System 2 5 lbs of Desiccant Std b Model 578 Self Regenerating Dehumidification System requires external air compressor or house air at 50 100 psi C Model 565 Dry Gas Dehumidification System CALCOMMS Computer Software Interface Package Allows remote monitoring charting and reprogramming of the Microprocessor Controllers from a PC 1 1 1 Front Panel Description The front panel of the Model 532 Chamber is shown in Figure 1 0 3 CONTROLLED ENVIRONMENT CHAMBER REL ool ot HUMIDITY ned a STANDGY LIGHT OFF TEMP AH OFF Figure 1 0 3 Model 532 Chamber Front Panel 1 1 1 1 Microprocessor Controllers The Model 523 Microprocessor Temperature Controller is the top unit The Model 524 Microprocessor Humidity Controller is the lower unit See Sections 5 0 and 3 0 respectively for a full explanation of all functions and features 1 1 1 2 1 Front Panel Switches POWER The Main Power Switch is the black rocker switch located directly bel
55. r a similar part to replace any equipment or part of its manufacture which within the above stated time is proved to have been defective at the time it was sold All equipment claimed defective must be returned properly identified to the Seller or presented to one of its agents for inspection This warranty only applies to equipment operated in accordance with Seller s operating instructions Seller s warranty with respect to those parts of the equipment which are purchased from other manufacturers shall be subject only to that manufacturer s warranty The Seller s liability hereunder is expressly limited to repairing or replacing any parts of the equipment manufactured by the manufacturer and found to have been defective The Seller shall not be liable for damage resulting or claimed to result from any cause whatsoever This warranty becomes null and void should the equipment or any part thereof be abused or modified by the customer of if used in any application other than that for which it was intended This warranty to replace or repair is the only warranty either expressed or implied or provided by law and is in lieu of all other warranties and the Seller denies any other promise guarantee or warranty with respect to the equipment or accessories and in particular as to its or their suitability for the purposes of the buyer or its or their performance either quantitatively or qualitatively or as to the products which it may produce and th
56. revent the solenoid valve from clicking on and off unnecessarily The Heating System will be unaffected To operate the Model 532 Cooling System 1 Adjust the set point to a value below the ambient temperature 2 Turn on the TEMP STANDBY switch on the front of the Control Panel This will not automatically apply power to the cooling system Turning on the TEMP STANDBY switch only makes the cooling system the available to Microprocessor Controller When the microprocessor activates the cooling system the large red LED in the lower left corner of the Temperature Microprocessor display will illuminate The Microprocessor will determine the amount of cooling needed to maintain the desired set point in the enclosure If less than the full output capacity of the Cooling System is needed the Controller will provide pulses of power to the unit to limit the output The cooling system will be turned on and off cyclically to obtain an average output lower than the full capacity of the cooling system appropriate to maintain the desired set point in the enclosure For best results the Cycle Time 2 CyC 2 for the Model 563 Gas Cooling System should be set as short as possible The Cycle Time for the Thermoelectric Cooling Systems Models 573 800 amp 1500 and the Refrigerated Cooling System Model 575 must be set to ON OFF To extend the life of these systems they must be cycled as little as possible See the Coo
57. t on the PC 3 4 1 4 Software Installation Software installation instructions can be found on pp 9 11 in the CALCOMMS Manual The CALCOMMS Manual is separate from the CAL 9500 Users Manual it is the manual with the color cover 3 4 2 Operation After installing the computer program and making the appropriate wiring connections to a PC turn to P 11 in the CALCOMMS Manual This section is titled GETTING STARTED Follow the directions to begin operating the program 3 4 2 1 MODBUS Addresses The MODBUS address is found in Level C See Section 2 4 1 HUMIDITY controller address is set to 2 at the ETS factory 3 4 2 2 Open Communications Instructions for opening communication are found on p 13 of the CALCOMMS manual 3 4 3 Logging and Charting Instructions for operating the Logging and Charting functions of the CALCOMMS program begin on P 21 of the CALCOMMS Manual 31 Section C Temperature 4 0 HEATING OPERATING SYSTEMS 4 1 Heating System 4 2 The Model 532 Chamber contains two 2 250 Watt Electric Heaters 500 Watts total The Heater is an integral part of the chamber located inside the Chamber workspace Since the Heater is already installed there is no additional set up required After turning ON the TEMP STANDBY switch the Microprocessor Temperature Controller governs the operation of the Heating System 1 The Microprocessor will determine the amount of heat needed to maintain the desired set p
58. the inside of the lid b Remove the small white cap from the outside of the lid c Screw the faucet onto the outside of the lid where the white cap had been previously The faucet has a OD tubing quickconnect fitting attached to the outlet Make sure the faucet is closed then push the 1 4 OD tubing into the quick connect fitting Attach the other end of the tubing to the fitting on the Model 532 Chamber side panel labeled WATER IN Place the water tank output at least 12 above the humidifier water input Placing the water tank on top of the chamber is acceptable This is a gravity feed system that requires the source tank to be above the humidifier Also air must be allowed to enter the 5 gallon tank or water will not flow Simply loosen the cap on top of the tank to allow air to enter Turn on the HUMIDITY STANDBY switch The Humidifier basin will begin to fill with water as soon as this switch is turned ON 2 1 2 2 Using the Tap Water System 1 Attach the water de ionizing column to a faucet The faucet should go to the fitting on the column lid labeled IN The user must provide an appropriate faucet adapter fitting Turn on the water Establish the proper water flow rate before attaching to the humidifier The water flow rate through the purifier should not exceed 8 oz every 25 30 seconds Water will pass at up to 10 gallons per hour NOTE Do not increase the flow rate
59. ting hi SC 100 0 Adjusts the maximum allowed value for the setpoint Lo SC 0 0 Adjusts the minimum allowed value for the setpoint inPt Lin Selects Linear Input Voltage setting for the ETS Model 554 Humidity Sensor 0 5 VDC max unit rh Selects process units The process units can be changed independent of the calibration settings In other words changing the setting from rh to any other units will not affect the calibration settings it will only change the units displayed 3 3 5 LEVL 3 Level 3 Level 3 is the output configuration level There are also features for calibration adjustment and performance data reading OUTPUT CONFIGURATION SP1 d SSd1 Do not change Assigns humidification control to the appropriate output SP2 d SSd2 Do not change Assigns dehumidification control to the appropriate output SAFETY SETTINGS Burn uP SC Do Not Change Sensor burnout break protection This safety setting is not applicable for RH control it is meant as a high temperature low temperature cutoff for heating applications to protect the surroundings from damage due to sensor failure rEv d 1r 2d Do Not Change Select output modes Direct Reverse Select Reverse for Humidification and Direct for Dehumidification rEv I 1n 2n Do Not Change Selects Microprocessor LED display model Normal mode is selected for each LED In normal mode the lower left red LED will light when the m
60. tpoint temperature by more than 2 0 C then the microprocessor will turn on the TE Module to cool Once turned on the TE cooler will run at maximum output The heaters will receive pulses of power to precisely regulate the temperature of the chamber 5 The 115 VAC internal thermoelectric circulation fans are operated in tandem with the main circulation fans The Fan Speed Control located on the front panel operates all of the internal circulation fans 6 See Section 2 3 Microprocessor Temperature Controller Programming 4 2 2 4 Specifications and Performance All cooling capacity figures are based on a room ambient temperature of 73 F 23 C All figures are expressed as a AT AT expresses the difference in temperature from room ambient 73 F Example 73 F 63 F AT of 10 F 1 The Model 573 800 Thermoelectric Cooler will remove up to 800 BTU hr 240 Watts hr from the Model 532 Chamber In a non insulated Model 532 Chamber standard chamber AT 10 F 5 5 C In a Model 532 Chamber using appropriate insulation the AT may be increased an additional 10 15 F 5 5 8 3 C depending on the thickness and quality of the insulation 2 The Model 573 1500 Thermoelectric Cooler will remove up to 1500 BTU hr 450 Watts hr from the Model 532 Chamber In a non insulated Model 532 Chamber standard chamber AT 18 F 10 C In a Model 532 Chamber using appropriate insulation the AT may be increased an addition
61. trol signal will still be sent to the solid state Control Relays The Relay Output will close but AC Power will no longer be connected to the Relay therefore the Humidity systems will not receive AC Power and will not operate LIGHT The Light Switch is located to the right of the Standby Switches In the ETS Model 532 Environmental Control Chamber this switch controls the overhead light installed in the Chamber workspace Sensors amp PC Boards The Sensor Input Control Relays and Switches are contained on a pair of PC Boards located on the rear of the Front Panel The PC Boards are mounted on standoffs and stacked on top of one another 4 1 Switches The switches are permanently mounted to the front PC Board referred to as the Switch PC Board 2 Relays The relays are removable and mounted in sockets and secured with plastic cable ties on the rear PC Board referred to as the Relay PC Board 3 Sensor Input The Sensor Input is the 5 pin DIN jack located in the lower left corner of the Switch PC Board The ETS Model 554 Sensor is equipped with an RTD Temperature Sensor and a temperature compensated Relative Humidity Sensor Both input signals interface with the system through this jack The ETS Model 554 RH Sensor is plugged into this jack The Model 554 Sensor Head Sensing Elements should be in the 532 Chamber Environment The sensor is held in place on the divider w
62. ure 2 2 2 1 Description The Model 578 Self Regenerating Dehumidification System requires 50 100 psi of air pressure at 2 6 cfm to operate For normal short term usage an internal 50 psi pump may be supplied Since air must be provided continuously either a separate air compressor or house air should be used for long term dehumidification applications to ensure long term air delivery reliability The basic Self Regenerating Dehumidification System consists of a high pressure air pump 50 psi minimum a dual column self regenerating desiccant dryer utilizing molecular sieve desiccant and a 3 way control valve The high pressure pump and dual column dryer operate continuously to assure a constant supply of dried air on demand The 3 way control valve controls the flow of dried air into the chamber workspace The air pump dryer and valve are mounted inside the control section of the chamber The air intake to the pump is muffled and is very quiet The pump draws in ambient air and compresses it to 50 psi The compressed air is passed on to the dual column dryer where it is forced through one of the desiccant columns The desiccant removes the moisture and dries the air down to a dew point of 40 F minimum The dried air is then split in two directions Most of the dried air is sent to the output A small portion of the dried air is diverted from the main flow and directed into the second column to regenerate the desiccant in the second
63. urn on the RH STANDBY switch on the front of the Model 532 Control Panel This will not automatically apply power to the dehumidification system Turning on the RH STANDBY switch only makes the dehumidification system available to the Microprocessor Controller When the microprocessor activates the outlet the large red LED in the lower left corner of the RH Microprocessor display will illuminate The Microprocessor will determine the amount of dehumidification needed to maintain the desired set point in the enclosure If less than the full output capacity of the Dehumidification System is needed the Controller will provide pulses of power to the unit to limit the output The Dehumidification System will be turned on and off cyclically to obtain an average output lower than the full capacity of the Dehumidification System appropriate to maintain the desired set point in the Chamber For best results the Cycle Time 2 CyC 2 should be set as short as possible See the Dehumidification System instructions for cycle time recommendations Desiccant Pump Dehumidification System minimum cycle time is 1 0 second Self Regenerating Dehumidification System minimum cycle time is 5 0 seconds 3 3 Programming the Microprocessor Controller 3 3 1 Accessing the Programming Menu 1 3 To access the Controller Program Menu press the and Y buttons simultaneously for three 3 seconds The controller will enter th
64. ut 2 hours 2 2 1 3 Desiccant Dehumidification System Set Up 15 Place the desiccant column somewhere near the chamber Next to or on top of the chamber are good locations Cut 2 pieces of the 4 OD tubing long enough to connect the desiccant column to the Side Interface Panel of the Chamber Connect one piece of the tubing between the fitting labeled DEHUMIDIFY OUT on the Side Interface Panel of the chamber and the fitting labeled IN on the desiccant column To connect the tubing Push the tube into the fitting orifice as far as possible The tube will lock into place automatically To release the tube push in on the collar of the fitting and gently pull out the tube Connect the second piece of tubing between the fitting labeled OUT on the desiccant column and the fitting labeled DEHUMIDIFY IN on the Side Interface Panel of the chamber Cover the chamber vent with the supplied 1 green Caplug The chamber vent inside of the chamber is the 1 orifice on the right wall the green plug should be placed in the orifice The vent passes through to the outside right wall the 1 barb on the outside should remain open Set the Model 532 Humidity Controller set point to a value below the ambient humidity refer to Model 532 Microprocessor Humidity Controller Operation Turn on the HUMIDITY STANDBY switch on the model 532 Front Panel This will not automatic
65. with Model 554 RTD Temperature Sensor is capable of controlling the temperature in the Model 532 Chamber by supplying a proportionally controlled power output to the Heating System and or Cooling System The Controller provides low voltage 6 VDC control signals to the HEAT and COOL solid state relays located on the RELAY PC board When the low voltage signal is applied to the relay Input the Output of the relay closes and allows AC Power to flow to the connected device When the TEMP STANDBY switch on the Front Panel is in the OFF 0 position AC power is manually disconnected from the control relays and no heating or cooling may take place until the switch is placed in the ON I position All devices in the Model 532 are connected through screw terminals on the Relay PC Board All relays and screw terminals are labeled 5 2 Controller Operation 5 2 1 Set Point Adjust 1 Press and hold the button The letters C or F depending on set up will appear followed by the current set point value The set point value is displayed on the lower half of the microprocessor display To adjust the set point higher press the lt button To adjust the set point lower press the 7 button 3 Release the button 5 2 2 Heating System To operate the Model 532 Heating System 1 Adjust the Temperature set point to a value above the ambi
66. y be increased or decreased to determine the point at which the Cooling System will activate These systems are operated in On Off mode instead of within a proportional band CyC 2 3 0 Recommended Cycle time means how often the unit can potentially be turned on and then off in succession 3 0 SECONDS is the recommended cycle time for the ETS Model 563 cooling system to achieve good control and extended valve life The ETS Model 563 solenoid valve CyC 2 may be set as low as 0 5 second but short times will accelerate valve wear DO NOT DECREASE THE CyC 2 BELOW 0 5 SECOND when operating this system The cycle time may be increased above 3 0 seconds to extend valve life but control may suffer If using any other cooling system determine the minimum cycle time at which the unit can safely operate consult the manufacturer s instructions for the unit NOTE All functions in Level 2 3 amp 4 may be locked so that they may not be altered unless unlocked See section 4 4 5 Level 4 5 3 4 LEVL 2 Level 2 Level 2 is the controller configuration level The controller is capable of being configured in an unlimited number of ways However the parameters needed to control the Temperature Operating Systems with the ETS Model 554 Temperature Sensor are programmed and locked MANUAL CONTROL MODES SP1 P Read SP1 output percentage power Read only hAnd off SP1 Manual percentage power control For manual control shou

532 User Manual (Previous Generation)

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