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A l l t e s t I n s t r u me n t s , I n c .
5 0 0 C e n t r a l A v e .
F a r mi n g d a l e , N J 0 7 7 2 7
P : ( 7 3 2 ) 9 1 9 - 3 3 3 9
F : ( 7 3 2 ) 9 1 9 - 3 3 3 2
a l l t e s t . n e t
s s a l e s @ a l l t e s t . n e t
T h e t e s t & me a s u r e me n t
e q u i p me n t y o u n e e d a t
t h e p r i c e y o u w a n t .
A l l t e s t c a r r i e s t h e w o r l d ' s l a r g e s t s e l e c t i o n o f
u s e d / r e f u r b i s h e d b e n c h t o p t e s t & me a s u r e me n t
e q u i p me n t a t 5 0 % t h e p r i c e o f n e w .
O O u r e q u i p me n t i s g u a r a n t e e d w o r k i n g , w a r r a n t i e d , a n d
a v a i l a b l e w i t h c e r t i f i e d c a l i b r a t i o n f r o m o u r i n - h o u s e s t a f f
o f t e c h n i c i a n s a n d e n g i n e e r s .
• 1 0 + f u l l t i me t e c h n i c i a n s w i t h o v e r 1 5 0 y e a r s o f
s p e c i a l i z a t i o n
• 9 0 d a y w a r r a n t y & 5 d a y r i g h t o f r e t u r n o n a l l
e q u i p me n t
• • 1 - 3 y e a r w a r r a n t i e s f o r n e w a n d
p r e mi u m- r e f u r b i s h e d e q u i p me n t
• E v e r y u n i t t e s t e d t o O E M s p e c i f i c a t i o n s
• S a t i s f a c t i o n g u a r a n t e e d
Y o u h a v e p l a n s , w e w i l l h e l p y o u a c h i e v e t h e m.
A n y p r o j e c t . A n y b u d g e t .
t
G e t a q u o t e t o d a y !
C C a l l ( 7 3 2 ) 9 1 9 - 3 3 3 9 o r e ma i l s a l e s @a l l t e s t . n e t .

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  • Page 1 T h e t e s t & me a s u r e me n t e q u i p me n t y o u n e e d a t t h e p r i c e y o u w a n t . A l l t e s t I n s t r u me n t s , I n c .
  • Page 2 USER MANUAL LH Series Photo: LH-10 with optional AES|XCHANGE and Watlow F4T Controller Copyright ©2024. Associated Environmental Systems Headquarters 978.772.0022| www.associatedenvironmentalsystems.com DocConSCS-UM-GEN-004 RevA © 2021...
  • Page 3: Table Of Contents

    INTERIOR CABINET EXTERIOR CABINET IV. . STANDARD FEATURES CIRCULATION SYSTEM COOLING SYSTEM—SINGLE STAGE SERIES WATLOW EZ-ZONE PM CONTROLLER HUMIDITY SYSTEM DEHUMIDITY SYSTEM TEMPERATURE SENSORS QUALITY CONTROL V. Operation Copyright ©2024. Associated Environmental Systems Headquarters 978.772.0022| www.associatedenvironmentalsystems.com DocConSCS-UM-GEN-004 RevA © 2021...
  • Page 4 APPENDIX O: Optional Products, p4 APPENDIX P: PARTS LIST APPENDIX Q: AES|XCHANGE USER MANUAL APPENDIX R: ELECTRICAL PRINT APPENDIX S: REFRIGERATION SCHEMATIC APPENDIX T: OPTIONAL CERTIFICATE OF CALIBRATION Copyright ©2024. Associated Environmental Systems Headquarters 978.772.0022| www.associatedenvironmentalsystems.com DocConSCS-UM-GEN-004 RevA © 2021...
  • Page 5: Safety Information

    Do not put explosive, corrosive, or materials that may emit fumes into the chamber. Warning: Excessive live load in the chamber may impair the performance of the chamber. Excessive live loads can also damage the Copyright ©2024. Associated Environmental Systems Headquarters 978.772.0022| www.associatedenvironmentalsystems.com DocConSCS-UM-GEN-004 RevA © 2021...
  • Page 6 Copyright ©2024. Associated Environmental Systems Headquarters 978.772.0022| www.associatedenvironmentalsystems.com DocConSCS-UM-GEN-004 RevA © 2021...
  • Page 7 Hot Surface Inside SAFETY: Take notice of warning labels adhered to the chamber: Electrical Shock Hazard Inside SAFETY: Take notice of warning labels adhered to the chamber: High Voltage Copyright ©2024. Associated Environmental Systems Headquarters 978.772.0022| www.associatedenvironmentalsystems.com DocConSCS-UM-GEN-004 RevA © 2021...
  • Page 8: Additional Safety Features

    Additional Safety Features High-temperature limit switch Low water steam generator over temperature circuit Refrigeration system overpressure safety circuit Copyright ©2024. Associated Environmental Systems Headquarters 978.772.0022| www.associatedenvironmentalsystems.com DocConSCS-UM-GEN-004 RevA © 2021...
  • Page 9: Operating Definitions

    Inspect the shipping container for any signs of damage. ****NOTE: Notify the carrier and Associated Environmental Systems if there are any signs of shipping damage within three days. 1. Cut the metal bands that hold the packaging to the pallet.
  • Page 10 Inspect the chamber for signs of damage from shipping. Copyright ©2024. Associated Environmental Systems Headquarters 978.772.0022| www.associatedenvironmentalsystems.com DocConSCS-UM-GEN-004 RevA © 2021...
  • Page 11: Preparation 2.0. Proper Installation Location

    If appreciable amounts of organic, free chlorine and chloramines, phosphate complexes, and turbidity are present, a rough filter (US filter model: absorber) should be used. The may be in addition to the ion exchanger cartridge. Copyright ©2024. Associated Environmental Systems Headquarters 978.772.0022| www.associatedenvironmentalsystems.com...
  • Page 12 ****CATION: Do not use double or triple distilled water. Pure water above 1.0 Megohm/cm attacks metals in the humidity system and drastically reduces the life of the humidity system. It may also cause etching of the chamber window. Copyright ©2024. Associated Environmental Systems Headquarters 978.772.0022| www.associatedenvironmentalsystems.com...
  • Page 13: Types Of Water Connections

    Not all water is recaptured with the water recirculation system so the test chamber drain will still need to connect to a facility floor drain. ****NOTE: Do not supply demineralized, deionized, double or triple distilled water through cartridges. Copyright ©2024. Associated Environmental Systems Headquarters 978.772.0022| www.associatedenvironmentalsystems.com DocConSCS-UM-GEN-004 RevA © 2021...
  • Page 14 ****NOTE: Incoming facility water must be less than 30 psi. Copyright ©2024. Associated Environmental Systems Headquarters 978.772.0022| www.associatedenvironmentalsystems.com DocConSCS-UM-GEN-004 RevA © 2021...
  • Page 15 3.0 BOTTLED DEMINERALIZED WATER TO 6 GALLON STORAGE TANK ON TEST CHAMBER The optional water recirculation system purchased through Associated Environmental Systems provides a source of demineralized water for the humidity system. If a demineralized cartridge is used with a reservoir and pump assembly, the demineralizer cartridge has to be placed downstream of the pump.
  • Page 16 Monthly care. Disconnect the six-gallon storage tank from the water system. Rinse and remove residue from your storage tank. Empty completely if chamber will not be used for an extended period of time. Copyright ©2024. Associated Environmental Systems Headquarters 978.772.0022| www.associatedenvironmentalsystems.com...
  • Page 17: More About Water Quality: What Type Of Water Should Be Used

    1.0 megohms, the water will start to corrode the metals it touches. If the only water available in the facility is city/tap water, it must be filtered through a demineralizer cartridge before entering the chamber, which Associated Environmental Systems can provide.
  • Page 18: Water Recirculation System Filter Cartridge Replacement

    The demineralizer filter cartridge must be replaced periodically. Do not overtighten the The color of the bottom half of the cartridge changes gradually through continued use. All filters and replacement cartridges are available from Associated Environmental Systems, contact sales@associatedenvironmentalsystems.com or AES East parts department, 978.772.0022, to order.
  • Page 19: Preparation - Installation Of Liquid Cooling (Ln2 Or Lco2)

    ****ATTENTION: Not all products from Associated Environmental Systems ship with a means of disconnect from the main voltage feed. If equipped with an inlet wall plug it is often sufficient to satisfy the disconnect requirement of the local electrical code.
  • Page 20: Preparation - Verify Performance

    PREPARATION - VERIFY PERFORMANCE This test chamber has been thoroughly inspected and tested prior to leaving the factory. To ensure that it is in proper working order after receipt, please perform the following initial checkout steps: ****NOTE: As an option some models may be equipped with CO or LN cooling systems.
  • Page 21 IF YOU HAVE AN F4 CONTROLLER or EZ-ZONE PM CONTROLLER With the “ POWER,” “HEAT,” and “COOL” switches on, set the chamber temperature controller to your lowest testing temperature. Allow 15 minutes for the system to stabilize itself at that temperature.
  • Page 22 IF YOU HAVE AN F4 CONTROLLER or EZ-ZONE PM CONTROLLER Observe After approximately 5 minutes, the humidity input should increase. STEP 8: Test humidity Increase humidity setpoint to 85%. IF YOU HAVE AN F4T CONTROLLER Observe After approximately 5 minutes, as the humidity reaches the setpoint the gray circle with a negative sign through it will change to green with a check mark through it.
  • Page 23 ****CAUTION: MAKE CERTAIN EXHAUST PORT PLUG IS REMOVED BEFORE OPERATION! Failure to remove the exhaust port plug will cause a dangerous condition and could result in personal injury.
  • Page 24: Iii. General Information

    III. GENERAL INFORMATION DESCRIPTION The LH/LHE series test chambers include Low/High-Temperature Humidity Test Chambers designed to generate and control low and high-temperature environments. Fast-response nichrome-wire heaters are used to raise the temperature, and a single-stage mechanical refrigeration system lowers the temperature. Each chamber also has a high-temperature thermostat control used as a safety in case of primary instrument failure.
  • Page 25: Iv. Standard Features

    RHEINLAND TUV CERTIFIED TO MEET UL 61010-1 for LH-1.5, LH-6, and LH-10 Environmental Considerations: Performance is typical and based on operation at 23°C (73°F) ambient and nominal input voltage at a humidity level of 40/50%. Operation at higher ambient temperatures will result in decreased cooling performance. Operation above 30°C (85°F) or below 16°C (60°F) ambient is not recommended.
  • Page 26: Cooling System-Single Stage

    COOLING SYSTEM—SINGLE STAGE Cooling is accomplished by a single-stage mechanical system using one compressor. The compressor utilizes polyester oil (POE) for lubrication. The refrigeration system removes the heat from the chamber and delivers it to the surroundings via air-cooled (standard) or water-cooled (optional) condenser.
  • Page 27: Humidity System

    HUMIDITY SYSTEM Humidity vapor is created in the external steam generator using stainless steel heaters and then piped to the chamber for distribution. The water level is maintained by an external tank with a water level valve. Thermal snap disc controls are mounted to the steam generators to prevent over temperature conditions in the element or a no water condition.
  • Page 28: Water Requirements

    Safeties are incorporated in the steam generator system to prevent the heater from operating if there is a case with the is no water in the tank. Appendix K for Optional Air Dryer Information (see chart - in red) Appendix M for Optional Wet Psychrometer Information (see chart - in purple) ****NOTE: Demineralized or single distilled water with resistance measurement between...
  • Page 29 Demineralized or single distilled water with resistance measurement between 50,000 and 1,000,000 Ohms/cm must be used. Do not use double or triple distilled water. Pure water above 1.0 megohm/cm attacks metals in the humidity system and drastically reduces the life of the humidity system. It may also cause etching of the chamber windows. Single Distilled Water is acceptable.
  • Page 30: Dehumidity System

    If appreciable amounts of organic, free chlorine and chloramines, phosphate complexes, and turbidity are present, a rough filter (US filter model: absorber) should be used. This may be in addition to the ion exchanger cartridge. All filters described are available from AES.
  • Page 31: Operation

    V. Operation OVERVIEW CHAMBER QUICK USE GUIDE ****WARNING: This chamber is designed to operate within the range of temperature specified in General Information Section of this manual. Any attempt to test outside of this range may result in damage to the chamber and its contents. ****NOTE: The facility water supply or water circulation system must be connected before turning on the power.
  • Page 32: Appendix

    APPENDIX SAFETY INFORMATION Warning: Power requirements are noted on the model nameplate located on the back of the chamber. If a contradiction exists, follow the power requirements on your chamber’s nameplate. Additional Safety Features High-temperature limit switch I. OPERATING DEFINITIONS HUMIDITY (EZ-ZONE PM and F4 controllers only) II.
  • Page 33 STEP 6: Cool down STEP 7: Test dehumidify IF YOU HAVE AN F4T CONTROLLER IF YOU HAVE AN F4 CONTROLLER or EZ-ZONE PM CONTROLLER STEP 8: Test humidity IF YOU HAVE AN F4T CONTROLLER IF YOU HAVE AN F4 CONTROLLER or EZ-ZONE PM CONTROLLER STEP 9: Test digital failsafe control WATLOW EZ-ZONE PM LIMIT High/Low Temperature Failsafe Test ****CAUTION: MAKE CERTAIN EXHAUST PORT PLUG IS REMOVED BEFORE OPERATION!
  • Page 34 1,000,000 Ohms/cm must be used. Do not use double or triple distilled water. Pure water above 1.0 megohm/cm attacks metals in the humidity system and drastically reduces the life of the humidity system. It may also cause etching of the chamber windows. DEHUMIDITY SYSTEM TEMPERATURE SENSORS QUALITY CONTROL...
  • Page 35 LIQUID COOLED REFRIGERATION SYSTEM CONNECTING: EXPENDING: INSTALLATION OF LN2 OR LCO2 LCO2 FILTRATION ONLY APPENDIX M: OPTIONAL WET PSYCHROMETER APPENDIX N: OPTIONAL HONEYWELL RECORDERS Your Honeywell recorder has been calibrated to your AES environmental test chamber. Below are links to your user manual for further information about how the recorder works. APPENDIX O: Optional Products, p1 APPENDIX O: Optional Products, p2 APPENDIX O: Optional Products, p3...
  • Page 36: Appendix A: General Maintenance

    APPENDIX A: GENERAL MAINTENANCE Some general maintenance suggestions and operating precautions are offered below. Always disconnect the chamber from all sources of power before attempting any form of maintenance or service to the chamber electrical circuits. Avoid connecting the chamber to a power source which exhibits wide voltage or frequency fluctuation.
  • Page 37: Appendix B: Preliminary Troubleshooting

    APPENDIX B: PRELIMINARY TROUBLESHOOTING MECHANICAL REFRIGERATION SYSTEM PRELIMINARY TROUBLESHOOTING — As a means of determining the general nature of the difficulty, the following procedures should be followed prior to using the trouble analysis and service chart. 1. Check voltage: a. With compressor idle b.
  • Page 38: Appendix C: Troubleshooting And Service Guide

    APPENDIX C: TROUBLESHOOTING AND SERVICE GUIDE ****Note: Before using the troubleshooting and service guide, perform “Preliminary Troubleshooting” steps in “Appendix B: Mechanical Refrigeration System” . Trouble & Possible Cause Symptom & Remedy Compressor(s) will not start. 1. Chamber connected to suitable 1a.
  • Page 39 1. Compressor and condenser fan run 1a. Evaporator coil iced up. continuously. Compressor amperage REMEDY: Defrost and dry out chamber. normal. Plug up port or any openings...
  • Page 40 where room air can enter the chamber. 1b. Excessive live load in chamber or excessive heat leakage into chamber through ports or other openings. REMEDY: Eliminate cause. 1c. Excessive opening of door. REMEDY: Eliminate cause. 1d. Loss of refrigerant charge. REMEDY: Determine and repair leak, and recharge system.
  • Page 41 2f. Damaged or restricted refrigerant line. REMEDY: Locate and replace. 2g. Low voltage or worn relay contacts. REMEDY: Correct low volume condition or replace relay. 3. Compressor cycles on and off on low 3a. Chamber temperature too low to permit pressure cutout.
  • Page 43 1g. Defective compressor current relay, compressor or thermal overload (internal) on compressor. REMEDY: Investigate cause and correct accordingly. 1h. Compressor stopping on its internal overload. REMEDY: Check overload and system pressure. No Temperature Pull-Up 1. No power to heater. 1a. No power to chamber. REMEDY: Check fuse or circuit breaker in your line.
  • Page 44 2. Heater energized continuously. If operated 2a. Defective Temperature controller. in this condition, chamber and contents REMEDY: Replace controller. may be damaged. 2b. Defective relay (applies only to models having relays.) REMEDY: Replace relay. 2c. Heater shorted to ground. REMEDY: Determine ground and correct Vibration or noise.
  • Page 45 1. Motor not developing full speed. 1a. Low voltage. REMEDY: Remove excessive load from the line or use booster transformer. 1b. Shaft dragging on insulation in wall. REMEDY: Turn shaft by hand until shaft provides its own clearance (insulation sometimes shifts during shipment.) 2.
  • Page 46 “Snow,” dry ice crystals build up in room. (Optional CO system installed only.) 1. Occurs only when operating below -100ºF 1a. Temperature controller is out of calibration (-73.3ºC.) Some snow is always present in and the chamber temperature is actually below the range -75ºF to -100ºF, but it melts as -100°F (-73.3ºC.) rapidly as it forms and does not accumulate...
  • Page 47: Appendix D: Frequently Asked Questions

    50 Hz rating of 200 V. This option is available from Associated Environmental Systems and can be easily installed in the field. The cooling performance will be reduced at 50 Hz. Please call AES for details on configuring for 50 Hz operation.
  • Page 48 familiar with low temperature cascade refrigeration systems. Please call Associated Environmental Systems to recommend a service company in your area. What should I do after a chamber has been stored or has not been used for a long period of time? Before or after lengthy periods of inactivity the chamber should be inspected to ensure nothing has been damaged or a leak has not developed.
  • Page 49: Appendix E: Standard Warranty Policy

    APPENDIX E: STANDARD WARRANTY POLICY Associated Environmental Systems (Associated) warrants this Product to be free from defects in material and workmanship, provided the same is installed, maintained, and operated in accordance with the instruction manual. This warranty is limited to the replacement and/or repair only of such defective part(s) as authorized in writing, provided examination by Associated discloses such defect upon its return to Associated, with transportation charges and cost prepaid by the purchaser.
  • Page 50: Appendix F: Extended Warranty Policy

    APPENDIX F: EXTENDED WARRANTY POLICY Associated Environmental Systems (Associated) warrants this Product to be free from defects in material and workmanship, provided the same is installed, maintained, and operated in accordance with the instruction manual. This warranty is limited to the replacement and/or repair only of such defective part(s) as authorized in writing, provided examination by Associated discloses such defect upon its return to Associated, with transportation charges and cost prepaid by the purchaser.
  • Page 51: Appendix G: Watlow Series F4T Touchscreen Controller

    PDF format. The following link connects you to the Watlow SERIES F4T controller website page and user manuals are located below the specifications. https:// www.watlow.com/en/products/controllers/temperature-and-process-controllers/f4t-integra ted-controller Associated Environmental Systems has already configured your controller for the performance specifications for this chamber.
  • Page 52: Appendix H: Retro Watlow Series F4 Ramping Controller

    APPENDIX H: RETRO WATLOW SERIES F4 RAMPING CONTROLLER Watlow SERIES F4 S/D 1/4 DIN Watlow documentation is very thorough, and is updated regularly. All of the controller documentation is available for download in PDF format. The following link connects you to the Watlow SERIES F4 controller. http://www.watlow.com/products/controllers/temperature-and-process-controllers/series -f4-ramp-soak-controller (capture date: 02/02/2017) SERIES F4S/D USER’S GUIDE, ¼...
  • Page 53 BASIC OPERATION STATIC SETPOINT OPERATION RUNNING A PROFILE...
  • Page 54 TO HOLD A PROFILE TO TERMINATE A PROFILE ADVANCING PROFILE...
  • Page 55 HOW TO FORCE ON EVENT OUTPUTS...
  • Page 56: Appendix J: Watlow Ez-Zone Pm Limit Controller For High/Low Temperature Safety

    APPENDIX J: WATLOW EZ-ZONE PM LIMIT CONTROLLER FOR HIGH/LOW TEMPERATURE SAFETY SERIES WATLOW EZ-ZONE PM LIMIT CONTROLLER The EZ-ZONE PM panel mount controller offers control options that reduce system complexity and thermal loop ownership cost. It can be ordered as a PID controller, an over/under limit controller or its functions can be combined into an integrated controller.
  • Page 57: Appendix K: Optional Compressed Air Dryer

    APPENDIX K: OPTIONAL COMPRESSED AIR DRYER THIS IS AN OPTIONAL PRODUCT-CHECK YOUR SALES ORDER TO SEE IF IT IS INCLUDED. DRY NITROGEN PURGE/FACILITY DRY AIR A dry air purge system can be provided to reduce humidity and condensation within the chamber and on the test item during temperature cycling.
  • Page 58 This is the link to the Domnick Hunter User Guide for the Pneudri Midas Compressed Air Dryers. The contents of this guide include safety information, description, installation and commissioning, operating the equipment, servicing, and troubleshooting. MANUFACTURER’S USER GUIDE: Das 1 - Das 7 http://www.parker.com/parkerimages/Parker.com/Literature/Hiross%20Zander%20Division /PDF%20Files/Operating%20Manuals/178310001_E%20PNEUDRI%20MiDAS_UG_lowres.pdf (capture date: 02/02/2019)
  • Page 59: Appendix L: Optional Liquid Cooling System

    APPENDIX L: OPTIONAL LIQUID COOLING SYSTEM THIS IS AN OPTIONAL PRODUCT-CHECK YOUR SALES ORDER TO SEE IF IT IS INCLUDED. LIQUID COOLED REFRIGERATION SYSTEM This chamber has a primary cooling system utilizing the refrigeration effect of vaporizing liquid nitrogen (LN ) or liquid carbon dioxide (LCO ).
  • Page 60 1000 PSI HIGH-PRESSURE SYSTEMS (for LCO2 applications only) Portable cylinders containing 50 pounds of LCO are available for use with this chamber if the chamber is set up for use with this system. Refer to model nameplate for the LCO proper source.
  • Page 61: Appendix M: Optional Wet Psychrometer

    APPENDIX M: OPTIONAL WET PSYCHROMETER THIS IS AN OPTIONAL PRODUCT-CHECK YOUR SALES ORDER TO SEE IF IT IS INCLUDED. Also known as a wet/dry bulb is physically located inside the test chamber workspace., allows the humidity in a test chamber above 95% and up to 98% (see purple range in chart below). Whenever possible, the humidity water supply is used to feed the wet sock.
  • Page 62: Appendix N: Optional Honeywell Recorders

    APPENDIX N: OPTIONAL HONEYWELL RECORDERS THIS IS AN OPTIONAL PRODUCT-CHECK YOUR SALES ORDER TO SEE IF IT IS INCLUDED. Your Honeywell recorder has been calibrated to your AES environmental test chamber. Below are links to your user manual for further information about how the recorder works. The following link connects you to the HONEYWELL eZtrend Digital Controller.
  • Page 63: Appendix O: Optional Products, P1

    APPENDIX O: Optional Products, p1...
  • Page 64: Appendix O: Optional Products, P2

    APPENDIX O: Optional Products, p2...
  • Page 65: Appendix O: Optional Products, P3

    APPENDIX O: Optional Products, p3 HUMS20004 Water Recirculation Cart with 6 gallon reservoir...
  • Page 66: Appendix O: Optional Products, P4

    APPENDIX O: Optional Products, p4...
  • Page 67: Appendix P: Parts List

    APPENDIX P: PARTS LIST A complete parts list for this chamber appears in this appendix. Associated Environmental Systems maintains a large stock of spare parts. When ordering parts, always include the model number and serial number of the chamber together with the description and part number of the replacement part needed.

This manual is also suitable for:

Lhe seriesLh-10Lh-36Lh-6Lh-1.5

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