Table of Contents Chapter 1 – Safety Instructions ________________________________________________ 1-1 Introduction ____________________________________________________________________ 1-1 Installation Safety Notices _________________________________________________________ 1-1 Operation Safety Notices __________________________________________________________ 1-2 Chapter 2 – Installation ______________________________________________________ 2-1 Uncrating _______________________________________________________________________ 2-1 Preparation For Use ______________________________________________________________ 2-1 Installation Location _____________________________________________________________ 2-2 Humidity Water Connection _______________________________________________________ 2-3 Plumbed Demineralized Water Installation __________________________________________________ 2-3 Water Recirculation System Installation, Model W100 _________________________________________ 2-3...
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Table of Contents Maintenance Procedures __________________________________________________________ 7-2 How to Clean the Chamber Interior and Exterior ______________________________________________ 7-2 How to Listen for Abnormal Noise or Vibration ______________________________________________ 7-2 How to Inspect the Door Seal _____________________________________________________________ 7-2 How to Inspect the Refrigeration Machinery Compartment ______________________________________ 7-3 How to Verify the Performance (Non-controlled humidity mode) _________________________________ 7-4 How to Verify the Performance (Controlled humidity mode) ____________________________________ 7-5 How to Inspect the Electrical Compartment __________________________________________________ 7-6...
6" from both the left and right side, and 12" from the rear. ! CAUTION: This chamber is designed for operation in a conditioned laboratory environment. Operation above 30°C (85°F) or below 16°C (60°F) ambient room temperature is NOT recommended. TestEquity 123HS Temperature/Humidity Chamber Page 1-1...
The independent EZ-Zone Limit Controller functions as the main system and product protection device. ! CAUTION: The EZ-Zone Limit Controller has been properly configured by TestEquity to match the chamber’s system requirements. Improper modifications to these setup values can result in unreliable and unsafe operation. Do not attempt to modify the setup values, unless you thoroughly understand what you are doing.
Chapter 2 – Installation Uncrating Inspect the shipping container for any signs of visible damage. Notify the carrier and TestEquity immediately if there are signs of shipping damage. The pallet is designed with ramps so the chamber can be rolled off without the need for a forklift or pallet jack.
6" from both the left and right side, and 12" from the rear. ! CAUTION: This chamber is designed for operation in a conditioned laboratory environment. Operation above 30°C (85°F) or below 16°C (60°F) ambient room temperature is NOT recommended. Page 2-2 TestEquity 123HS Temperature/Humidity Chamber...
The demineralizer filter cartridge must be replaced when it is used up. The color of the top half of the cartridge changes gradually through continued use. Replacement cartridges are available from TestEquity (part number TE-0014 for a carton of 6 cartridges). TestEquity 123HS Temperature/Humidity Chamber...
Finger-tighten the Water Supply and Drain connections to chamber. Plug the pump power supply into receptacle on the back of the chamber. The drain tube from the chamber must not be submerged in the water. Page 2-4 TestEquity 123HS Temperature/Humidity Chamber...
OFF. Humidity cannot be controlled in this range of temperature. 7. Turn the CONDITIONING Switch ON. Alternatively, turn the CONDITIONING Switch to the EVENT 1 position and turn EVENT 1 on the F4 controller or the Power button on the F4T controller ON. TestEquity 123HS Temperature/Humidity Chamber Page 3-1...
+7°C and +90°C. The chamber will cool in single-stage refrigeration mode. If the Humidity mode is disabled, the chamber will cool in cascade refrigeration mode and there will be no humidity control. Page 3-2 TestEquity 123HS Temperature/Humidity Chamber...
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+7°C and +90°C, and the humidifier water level must be correct for the HUMIDITY Light to correspond to the humidity output on the F4/F4T controller. There is no corresponding light on the front panel for the dehumidification function. TestEquity 123HS Temperature/Humidity Chamber Page 3-3...
Limit Controller’s temperature limits are exceeded. ! CAUTION: To prevent damage to your test sample and the chamber’s compressors, do not exceed the live load rating of the chamber. Live Load Capacity for Model 123HS (uncontrolled humidity mode only) Temp +23°C 0°C –40°C...
Make sure that all connectors, wiring, pc boards, and auxiliary components can withstand the temperature extremes that they will be subjected to. In some cases, these components may not be able to last after repeated tests and should be considered expendable. TestEquity 123HS Temperature/Humidity Chamber Page 3-5...
“cold start”. During most of that time, it might appear that “nothing is happening” because there is little increase in the humidity reading. Be patient – if the Humidity Light is ON, the humidity will eventually begin to rise after this initial heat-up period. Page 3-6 TestEquity 123HS Temperature/Humidity Chamber...
Compressed Air Inlet to Dry Air System. Shutoff valve on the Dry Air System is shown in the off position. Valve must be in the on position to operate. Figure 4.4 – Dry Air Purge System Installation TestEquity 123HS Temperature/Humidity Chamber Page 3-7...
A suggested starting setting is 2 SCFM. Relief Vent Excess pressure in the chamber workspace is vented through a pressure-relief check-valve, which is located on the top of the chamber. Page 3-8 TestEquity 123HS Temperature/Humidity Chamber...
3. Locate the Event Assembly and connect your wires to the desired solid state relay terminals. 4. A 1/2-inch conduit hole is provided on the back panel to route your wires through. Use the appropriate wire/cable management fittings. Event Numbers Figure 3-3 – Event Relay Location TestEquity 123HS Temperature/Humidity Chamber Page 3-9...
Not all features or functions are applicable. Only the capabilities of a model PM6L1AJ-AAAABAA are applicable. ! CAUTION: The EZ-Zone Limit Controller has been properly configured by TestEquity to match the chamber’s system requirements. Improper modifications to these setup values can result in unreliable and unsafe operation. Do not attempt to modify the setup values, unless you thoroughly understand what you are doing.
Then, you must press the RESET or EZ Key to resume normal operation. Silencing the Audible Alarm Turning off the CONDITIONING switch on the chamber front panel lets you temporarily turn off the Audible Alarm, even though the High or Low Limit condition may still exist. Page 4-2 TestEquity 123HS Temperature/Humidity Chamber...
Connections to the safety contacts are at relay CR1 socket, terminals 6 and 8. Plug in the relay and reposition the retaining clip when finished. Figure 4-2 – Location of Safety Contact Connections on the Electrical Sub Panel TestEquity 123HS Temperature/Humidity Chamber Page 4-3...
How can I modify the chamber to cool faster? Unfortunately, there is little you can do to improve upon the designed-in performance. TestEquity does NOT recommend using CO or LN in this chamber to achieve faster cooling due to reliability and safety considerations, so it is NOT an available option. Modifying the...
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I haven’t used the chamber for a while. Is there anything I should do to prepare it for operation? Perform ALL the steps in the Preventive Maintenance Schedule before placing the chamber back into service. This will ensure that nothing has been damaged and that a leak has not developed. Page 5-2 TestEquity 123HS Temperature/Humidity Chamber...
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This chamber should only be serviced by a qualified mechanic that is familiar with environmental chambers. Call TestEquity to recommend one in your area, or to check if the one you would like to use is qualified.
Additional ports and shelves will also affect performance. Operation above 30°C (85°F) or below 16°C (60°F) ambient is not recommended. Due to continuous product development, specifications are subject to change without notice. TestEquity 123HS Temperature/Humidity Chamber Page 6-1...
• Verify the chamber performance. • Drain the water recirculation system reservoir. Every 6 Months • Inspect the electrical compartment. • Clean the condenser. • Drain the humidity system. Every 12 Months • Verify the calibration. TestEquity 123HS Temperature/Humidity Chamber Page 7-1...
• If the seal is not tight, adjust the door latch. The catch bracket that is mounted to the chamber has slotted holes to permit adjustment. • If the seal is still loose on the hinge side, adjust the door hinge. The hinges have slotted holes to permit adjustment. Page 7-2 TestEquity 123HS Temperature/Humidity Chamber...
5. Inspect for oil around refrigeration valves, fittings and joints. This may be a sign of leaks. 6. Inspect for loose hardware and tighten as required. 7. Inspect for signs of insect or rodent infestation. Yes, it does happen! TestEquity 123HS Temperature/Humidity Chamber Page 7-3...
These tests assume that the F4/F4T Controller’s setup and tuning values have not been changed from the values as shipped from TestEquity. Also, the EZ-Zone Limit Controller high limit must be set to over +85°C (+88°C would be fine), and the low limit set to –...
These tests assume that the F4/F4T 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). 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.
NOTE: You may need to drain and replace the water more frequently if the water appears dirty before the recommended maintenance interval of 3 months. Reservoir drain. Drain water when it appears dirty. Figure 7-1 – Reservoir Drain Valve Page 7-6 TestEquity 123HS Temperature/Humidity Chamber...
(as if you were facing the front of the valve handle). Humidifier. Warning – will be very hot during humidity system operation and can cause burns if touched! Figure 7-2 – Humidity Drain Valve (shown in the closed, or normal operating position) TestEquity 123HS Temperature/Humidity Chamber Page 7-7...
TestEquity recommends verifying the calibration before attempting to actually perform a calibration. The state-of-the-art instrumentation used in TestEquity chambers is of the highest quality and seldom goes out of calibration. If you try to calibrate the instrumentation before determining that calibration is necessary, you may make it worse if done incorrectly.
Chapter 7 – Maintenance How to Verify the Humidity Calibration TestEquity recommends verifying the humidity calibration before attempting to actually perform a calibration. If you try to calibrate the instrumentation before determining that calibration is necessary, you may make it worse if done incorrectly.
The hot gas regulator (9) is adjusted to keep the suction pressure at 2 PSIG when both S1 and SV2 are off. A suction line cooling thermostatic expansion valve (11A) senses the suction line temperature and injects liquid refrigerant to cool the suction return gas within safe limits. Page 7-10 TestEquity 123HS Temperature/Humidity Chamber...
No bubbles in the sightglass. Chamber interior is overloaded. Test sample is energized, giving reach –35°C. off heat. Circulator motor is not turning. Port plug is not in port. Door is not sealing completely. Ice on evaporator. TestEquity 123HS Temperature/Humidity Chamber Page 7-11...
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Re-enter values as shipped from parameters in F4/F4T Controller TestEquity. too frequently. were changed. If compressor control Solenoid valve SV1 may be parameters in F4/F4T Controller defective in the open position. are as shipped from TestEquity. Page 7-12 TestEquity 123HS Temperature/Humidity Chamber...
These are NOT do-it-yourself instructions! Refrigerant Charge TestEquity does NOT recommend charging the system by relying on a clear sight glass only. Although a clear sight glass generally means the system is fully charged, it can be misleading.
Chapter 7 – Maintenance Recommended Spare Parts Replacement parts are available from TestEquity. Parts are generally in-stock and ready for immediate shipment. Next-day delivery is always available. If you cannot risk being out of service for even one day, then you should purchase critical spare parts in advance. Although most parts are standard and available from a variety of local distributors, some parts are either harder to find or custom.
Improper modifications to these setup values can result in erratic performance and unreliable operation. Do not attempt to modify the setup values, unless you thoroughly understand what you are doing. If there is any doubt, please call TestEquity before proceeding. Setup Menu Prompt...
If the repair or replacement is performed in the FIRST YEAR from the date of invoice, TestEquity will also pay for the labor associated with the repair at the Purchaser’s site, subject to TestEquity’s prior approval. During the SECOND and THIRD YEAR of the warranty period, Purchaser will be responsible for the installation and cost of installation of replacement or repaired parts, and the cost of refrigerant.
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