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Chapter 8 – Maintenance 

 

 

Page 8-4 

TestEquity 1007S Temperature Chamber 

How to verify the chamber performance. 

These tests verify the performance of the heating, refrigeration, electrical controls, temperature 

controller, and air circulation systems. The chamber should meet all published performance 

specifications if all of these tests are successfully passed. 

 

These tests assume that the Temperature Controller’s setup and tuning values have not been 

changed from the values as shipped from TestEquity. Also, the Limit Controller high limit must 

be set to over +85°C (+88°C would be fine), and the low limit set to –75°C. 

 

If the chamber fails any of these tests, it should be removed from service to prevent further 

damage until the cause of the problem is determined and resolved. 

 

1.

 

The chamber interior should be empty and at ambient temperature, approxi23°C. 

2.

 

Set the Temperature Controller Set Point to +85°C and turn the Conditioning Switch ON. 

3.

 

The Heat Light should be ON continuously and the Cool Light should be OFF. 

4.

 

The chamber should heat up to about +80°C and begin controlling (Heat Light cycles 

ON/OFF) within 7 minutes. 

5.

 

The chamber temperature should slowly increase and stabilize to +85°C. It should NOT 

overshoot 85°C by more than a few tenths of a degree, and the compressors should 

NOT need to turn ON in order to ma85°C. 

6.

 

After stabilization, the chamber temperature should vary no more than ±0.5°C, or a total of 

1°C. 

7.

 

Let the chamber stay at +85°C for two hours. 

8.

 

After two hours at +85°C, set the Temperature Controller Set Point to –30°C. 

9.

 

The compressor should turn ON within a few seconds. The Cool Light should be ON 

continuously and the Heat Light should be OFF. 

10.

 

The chamber should cool down to about –25°C and begin controlling (Cool Light cycles 

ON/OFF) within 18 minutes. 

11.

 

The chamber temperature should slowly decrease and stabilize to –30°C. It should NOT 

undershoot beyond –30°C by more than a few tenths of a degree, and the compressors should 

NOT need to turn OFF in order to maintain –30°C. 

12.

 

After stabilization, the chamber temperature should vary no more than ±0.5°C, or a total of 

1°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 Conditioning Switch OFF. 

 

Содержание 1007S

Страница 1: ...1 2018 Model 1007S Temperature Chamber Serial Number 30511 and above Operation and Service Manual TestEquity LLC 6100 Condor Drive Moorpark CA 93021 Support 877 512 3457 Toll Free 805 480 0638 Corpora...

Страница 2: ......

Страница 3: ...________________ 3 2 COOL Light __________________________________________________________________________ 3 2 Loading the Chamber ____________________________________________________________3 3 Port...

Страница 4: ...5 How to verify the calibration _____________________________________________________________ 8 5 Theory of Operation______________________________________________________________8 7 Troubleshooting...

Страница 5: ...C 85 F or below 16 C 60 F ambient room temperature is NOT recommended CAUTION The Input Voltage label on the back of the chamber indicates the input voltage configuration as shipped from the factory I...

Страница 6: ...yond 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...

Страница 7: ...at there is also Velcro that holds the retainer in place Place the retainer in the front of the pallet on the floor 5 Locate the two ramps under the chamber and remove them 6 Attach the ramps to the f...

Страница 8: ...bient room temperature is NOT recommended Condensate Drain The chamber has a condensate drain connection on the rear of the chamber This provides a way to remove condensate that may accumulate in the...

Страница 9: ...CAUTION This chamber must be properly configured for either 208 V or 230 V nominal input 208 V and 230 V are NOT the same Do NOT guess Do NOT assume you have 220 V You must verify the exact type of el...

Страница 10: ...cian who is familiar with industrial plant wiring The Disconnect Switch on the front panel removes primary power to the entire chamber All branch circuits on the load side of the Disconnect Switch are...

Страница 11: ...ual for details on how to use the Temperature Controller CAUTION This chamber has a crankcase heater to protect the compressor The chamber must be connected to the power source AND the Main Disconnect...

Страница 12: ...longest possible life for the compressor if the chamber has been removed from the power source for more than 24 hours CONDITIONING Switch ON Mode The CONDITIONING Switch enables all chamber functions...

Страница 13: ...ts and surfaces that are hot or cold to prevent severe burns or frostbite Protective gloves are recommended CAUTION If your test sample is energized it may be capable of raising the workspace temperat...

Страница 14: ...ing 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 chambe...

Страница 15: ...tive pressure can result if the chamber door is opened at high temperature and then closed A positive pressure can also occur if the optional Dry Air Purge or GN2 Purge system is operational A negativ...

Страница 16: ......

Страница 17: ...d 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 PM6L1AJ AAAABAA are applicab...

Страница 18: ...han your actual chamber temperature set point to prevent nuisance tripping 5 Press the RESET Key to return to the Home Page 6 The upper display will show the actual chamber temperature while the lower...

Страница 19: ...to remove power to your test sample if the Limit Controller s temperature limits are exceeded The safety contacts are rated as follows Resistive 10 A 250 VAC or 10 A 28 VDC Inductive 7 A 250 VAC To ac...

Страница 20: ......

Страница 21: ...nnect 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 Connect the pow...

Страница 22: ......

Страница 23: ...is familiar with industrial plant wiring I need to send the chamber outside North America Will it work with their power Outside North America most countries have 50 Hz Standard voltages in Europe are...

Страница 24: ...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...

Страница 25: ...ossible life for the compressor if the chamber has been removed from the power source for more than 24 hours Can the person who services our air conditioning also service the chamber Probably not Most...

Страница 26: ......

Страница 27: ...ange for a particular condition take the difference between the Start Temp and End Temp and divide by the Transition Time Cool Down Example empty From 85 C to 10 C 95 C 14 min 6 79 C min Cool Down Exa...

Страница 28: ......

Страница 29: ...Maintenance Intervals Daily or As Needed Clean chamber interior and exterior Listen for abnormal noise or vibration Every 3 Months Inspect the door seal Inspect the refrigeration machinery compartmen...

Страница 30: ...ing 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 Circulator motor and fan nois...

Страница 31: ...se hardware and tighten as required 6 Inspect for signs of insect or rodent infestation Yes it does happen How to check the refrigerant charge The refrigerant charge is checked by observing the sightg...

Страница 32: ...OFF within 7 minutes 5 The chamber temperature should slowly increase and stabilize to 85 C It should NOT overshoot beyond 85 C by more than a few tenths of a degree and the compressors should NOT nee...

Страница 33: ...es 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 ch...

Страница 34: ...For the F4T Controller If calibration of the temperature controller is necessary refer to the F4T Touch Screen Controller User s Guide For the F4 Controller If calibration of the temperature controlle...

Страница 35: ...r low temperature safety limits are exceeded TCR2 turns off CR3 which turns off C1 Refrigeration System Cooling is accomplished by a single stage refrigeration system The refrigeration system provides...

Страница 36: ...he suction pressure at 2 PSIG when SV1 is OFF Pilot Light PL2 provides an indication on the front panel when SV1 is ON During a high temperature pulldown or a continuous bypass condition it is possibl...

Страница 37: ...ce and matches the input power configuration see Chapter 2 Input Power Configuration Heat is on all the time 1 If F4T left PWR bar is 0 F4 controller light 1A is OFF 1 Solid State Relay SSR1 is defect...

Страница 38: ...3 If tuning PID control parameters in temperature controller are as shipped from TestEquity and only occurs in cool mode 1 Re enter values as shipped from TestEquity 2 Control parameters may need to...

Страница 39: ...charging the system by relying on a clear sight glass only Although a clear sight glass generally means the system is fully charged it can be misleading For example if the system is charged on a cool...

Страница 40: ...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 hard...

Страница 41: ...troller Watlow F4T1L2EAA2E1017 TCR1 222510 1 ea High Low Limit Controller Watlow PM6L1AJ AAAABAB TCR2 200301 1 ea Control Transformer Hammond PH350MLI TR1 200219 1 ea 60 Hz Low or High Line Option Tra...

Страница 42: ...OM CUSTOM 300534 2 ea Viewing Window CUSTOM CUSTOM 383382 1 ea Door Gasket CUSTOM CUSTOM 300541 1 ea Door Latch Chamber Workspace Southco A2 10 501 21 300009 1 ea Caster Swivel RollMaster 35 15 11 300...

Страница 43: ...Limit Sides both Alt high High only or LoW Low only L hY Limit Hysteresis 2 Change not recommended A ty Alarm Type oFF Do Not Change PAr1 Upper Display ACPu Alt none PAr2 Lower Display Lst Alt Lh s H...

Страница 44: ......

Страница 45: ...e Purchaser to return the Equipment to TestEquity when such return is feasible The following parts are excluded from this limited warranty and are sold as is or are considered expendable interior ligh...

Страница 46: ......

Страница 47: ...Chapter 10 Drawings TestEquity 1007S Temperature Chamber Page 10 1 Chapter 10 Drawings...

Страница 48: ......

Страница 49: ...Subpanel Component Location Disconnect Switch Terminal Strip Input L1 L2 T1 T2 Ground Lug F1 F2 F3 F4 F5 F6 C1 C2 SSR2 SSR1 CR1 CR2 CR3 FNM 3 FNQ R 15 LP CC R 15 A1 A2 H3 Control Transformer TR1 3 4...

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