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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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Table of Contents
Related Manuals for Associated Environmental Systems SD-302
Summary of Contents for Associated Environmental Systems SD-302
- 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 INSTRUCTION MANUAL INSTRUCTION MANUAL INSTRUCTION MANUAL INSTRUCTION MANUAL MODEL #: SD-302 BENCHTOP TEMPERATURE CHAMBER Associated Environmental Systems 31 Willow Road Ayer, MA 01432 Phone (978) 772-0022 Fax (978) 772-0088 http://www.associatedenvironmental.com...
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Page 4: Table Of Contents
TABLE OF CONTENTS TABLE OF CONTENTS TABLE OF CONTENTS TABLE OF CONTENTS I. Safety Information II. Description General Information Heating System Refrigeration System III. Installation Unpacking Placement Power Requirements Initial Inspection IV. Operation Overview Live Loads Pilot Lights Watlow PM Controller Watlow F4 Temperature Controller Overview CO2/LN2 Boost... - Page 5 VI. Frequently Asked Questions This chamber is being sent to another country, will their power work? Why do I smell something when operating the chamber for the fist time? Why does the chamber heat/cool slower than specified? Should I put a filter in front of the air intake? How to Clean the chamber FAQ Why is there ice or “snow”...
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Page 6: Safety Information
SAFETY INFORMATION PLEASE READ Follow all warnings to prevent possible injury or damage to the chamber. Failure to follow all warnings may void the warranty. Allow a minimum of 18" clearance in front and rear of chamber for Warning: ventilation across air cooled condenser. The internal components and general performance of the chamber will be impaired if it is placed in a corner or boxed in by other equipment. -
Page 8: Description
The Model SD-302 is a Low Temperature/High Temperature Test Chamber which has 2 cubic feet of working volume. The SD-302 is designed to generate and control low and high temperature environments in the range of -65°C to +200°C (-85°F to +392°F) For temperature control, it incorporates an all solid state microprocessor programmer which features +/- ¼°C (+/- ½°F) temperature control stability at the sensor. -
Page 9: Heating System
DESCRIPTION CIRCULATION SYSTEM The circulation system consists of electric motor(s) and fan blade(s). The electric motor is a split phase, TEFC with automatic reset thermal overload. The motor has a stainless steel shaft, which extends into the chamber and then into the fan blade. The bearings are the permanently lubricated type, so no further lubrication is required. - Page 10 DESCRIPTION A de-superheating expansion valve has been added to maintain acceptable suction gas temperatures returning to the compressor when bypassing or when chamber pulls down from high temperatures to low temperatures. A pressure relief valve opens when the high side pressure goes above approximately 280 psig and diverts the gas to the expansion tank.
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Page 12: Installation
ATTENTION: Not all products from Associated Environmental Systems ship with a means of disconnect from the main voltage feed. If equipped with a wall plug, this is often sufficient to satisfy the disconnect requirement of the local electric code. - Page 13 INSTALLATION CHAMBER DRAIN Connect copper chamber drain in accordance with local codes. It is located on the bottom rear of the chamber. Copper Drain (5/16” ID 3/8” OD)
- Page 14 INSTALLATION INITIAL CHECKOUT 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: STEP 1: Place the Power (Circulation) switch ON and with the door opened, confirm that there is airflow from the circulation blower.
- Page 15 INSTALLATION OPTIONS: Your chamber may have been equipped with an auxiliary cooling system utilizing either LN These capabilities are listed in the model nameplate. Attach auxiliary system to connection on rear of chamber as indicated. NOTE: All auxiliary systems require an exhaust due to pressure being introduced into the chamber.
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Page 16: Operation
OPERATION OVERVIEW CHAMBER QUICK USE GUIDE TEMPERATURE WARNING: This chamber is designed to operate within the range of temperature specified in the DESCRIPTION, SECTION II of this manual. Any attempt to test outside of this range will result in damage to the chamber and its contents. Close the chamber door, check that all ports are plugged, turn the power (circulation) on, and set the temperature required with the programmer by referring to the quick use guide provided in this manual. -
Page 17: Live Loads
OPERATION LIVE LOADS The following data is an estimate, actual chamber performance may vary. SD-302 SD-308 500W SD-308 250W SD-405 500W SD-408 500W SD-502 SD-508 500W SD-508 200W... -
Page 18: Pilot Lights
OPERATION PILOT LIGHTS The switch and pilot light are integrated into one unit. Light will illuminate when switch is actuated POWER - (Circulation) When the power light is ON, the chambers’ circulation fan is activated and the primary power for the chamber is ON. HEAT –... -
Page 19: Watlow Pm Controller
SERIES WATLOW PM CONTROLLER SET UP The Watlow PM Controller has been “set-up” by Associated Environmental Systems. It has been tuned for your chamber and should not require any changes in the PID parameters. See the temperature control setup page after the controller manual for the PID parameters. - Page 20 SERIES F4SH (OPTIONAL) MICROPROCESSOR-BASED CONTROLLER SETUP The series F4SH has been setup by Associated Environmental Systems. The internal dip switch has already been set. It has also been tuned for you chamber and should not require any changes in the PID parameters.
- Page 21 OPERATION CHART RECORDERS ( OPTIONAL) HONEYWELL TRUELINE 2 PEN CHART RECORDER The recorder was “set-up” at the factory for the chambers temperature range. The DR4500 draws its own charts. Additional Information can be found in the accompanying Honeywell disk at the end of the manual. TEMPERATURE ONLY - Temperature is read by single line on chart.
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Page 22: Co2/Ln2 Boost
OPERATION CO2/LN2 BOOST (OPTIONAL) Boost cooling is available for applications that require a fast pull-down rate. A CO supply tank is required with a pressure of 300 or 1000 PSIG (Specify). To use the CO boost: The chamber must have been ordered with one of the following options please check which option the chamber has before connecting the auxiliary cooling source. -
Page 23: Dry Nitrogen Purge
OPERATION DRY NITROGEN PURGE (OPTIONAL) A dry air purge system can be provided to reduce condensation within the chamber and on the test item during temperature cycling. This option is primarily used to prevent a short circuit in electronic components and is also used to lower humidity within the chamber. To use the dry nitrogen purge: The chamber must have been ordered with the dry nitrogen system and connected to a GN source with a maximum pressure of 100 PSIG. -
Page 24: Profile Programming
OPERATION PROFILE PROGRAMMING A profile is a set of instructions programmed as a sequence of steps. The controller handles the profile steps automatically, in sequence. As many as 40 different profiles and a total of 256 steps can be stored in the Series F4’s non-volatile memory. The 256 steps are grouped by profile. So, one profile could have 256 steps;... - Page 25 OPERATION • PID set (one of five sets of heat/cool PID parameters, pre-defined in the Operations Page) • Guaranteed Soak (requires the actual process value to stay within the Soak Band as set in the System Menu). * Ramp Rate step type is disabled for humidity enabled chambers Soak Soak maintains the set point from the previous step for a chosen time in hours, minutes and seconds.
- Page 26 OPERATION How to Program a New Profile 1. Go to the Profiles Page. Move the cursor to Go to Profiles (at the bottom of the Main Page), then press the Right Key ►. Main>Profile________ 2. Create a new profile. > Create Profile Press ►.
- Page 27 OPERATION 4-12...
- Page 28 OPERATION How to Edit a Profile 1. Go to the Profiles Page. Move the cursor to Go to Profile (at the bottom of the Main Page), then press ►. Main>Profile________ 2. Choose to edit a profile. Create Profile Press ►. >...
- Page 29 OPERATION LOVE SERIES TCS-4011 HIGH TEMPERATURE SAFETY QUICK USE GUIDE This control provides protection against the possibility of a high temperature runaway in the event of primary control instrument failure or any similar circumstance that would cause the chamber temperature to be driven beyond the set point. The failsafe is adjustable to provide protection within the maximum temperature design limit of the chamber.
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Page 30: High/Low Temperature Safety (Optional)
OPERATION WATLOW SERIES PM EZ-ZONE EXPRESS (Optional) HIGH/LOW TEMPERATURE SAFETY QUICK USE GUIDE This control provides protection against the possibility of a high or low temperature runaway in the event of primary control instrument failure or any similar circumstance that would cause the chamber temperature to be driven beyond the set point. -
Page 32: Maintenance
MAINTENANCE GENERAL MAINTENANCE, TROUBLE ANALYSIS, AND SERVICE GUIDE... - Page 33 MAINTENANCE MAINTENANCE Some general maintenance suggestions and operating precautions are offered below. 1. Always disconnect the chamber from all sources of power before attempting any form of maintenance or service to the chamber electrical circuits. 2. Avoid connecting the chamber to a power source which exhibits wide voltage or frequency fluctuation.
- Page 34 MAINTENANCE MECHANICAL REFRIGERATION SYSTEM PRELIMINARY – 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. With compressor operating The voltage must be as follows: A.
- Page 35 MAINTENANCE TROUBLE ANALYSIS AND SERVICE GUIDE MECHANICAL REFRIGERATION Trouble & Possible Cause Symptom & Remedy A. Compressors(s) will not start. 1. Chamber connected to suitable 1a. Blown fuse in main line, blown fusetron electrical system, compressor not in compressor unit, or blown fusetron operating and condenser fan not elsewhere.
- Page 36 Trouble & Possible Cause Symptom & Remedy 2d. Defective compressor current relay, compressor thermal overload (internal) or compressor. REMEDY: Replace as necessary. 2e. Defective compressor. REMEDY: Replace compressor. B. Slow pull down or no pull down. 1. Compressor and condenser fan run 1a.
- Page 37 Trouble & Possible Cause Symptom & Remedy 2. Compressor cycles on and off on 2a. Compressor dirty or air flow restricted. compressor overload. REMEDY: Clean condenser or move unit to provide free air flow across condenser and out side of chamber. 2b.
- Page 38 Trouble & Possible Cause Symptom & Remedy C. System will not maintain a low temperature continuously. 1. Compressor runs continuously or will 1a. Condenser dirty or air flow restricted. not always run when required by the temperature controller. REMEDY: Clean condenser or move unit to provide free air flow across condenser and out the side of chamber.
- Page 39 Trouble & Possible Cause Symptom & Remedy REMEDY: Check overload and system pressure. D. No temperature pull up. 1. No power to heater. 1a. No power to chamber. REMEDY: Check fuse or circuit breaker in your line. 1b. Temperature controller defective. REMEDY: Replace controller.
- Page 40 Trouble & Possible Cause Symptom & Remedy E. Temperature pulls up above controller set point. 1. Control satisfactory but at incorrect 1a. Temperature controller out of calibration. temperature. REMEDY: Calibrate controller. 2. Heater energized continuously. If 2a. Defective Temperature controller. allowed to operate in this condition, chamber and contents may be damaged.
- Page 41 Trouble & Possible Cause Symptom & Remedy REMEDY: See I-1. G. Poor air circulation within the unit. 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.)
- Page 42 Trouble & Possible Cause Symptom & Remedy I. “Snow,” dry ice crystals build up in room. (Optional CO system installed only.) 1a. Temperature controller is out of calibration and the chamber temperature is 1. Occurs only when operating below actually below -100°F (-73.3ºC.) -100ºF (-73.3ºC.) Some snow is always present in the range -75ºF to -100ºF, but REMEDY: Calibrate controller.
- Page 44 Should I put a filter in front of the air intake? No, the performance of the chamber will be reduced if there is restricted airflow across the condenser. Associated Environmental Systems does not recommend putting a filter in front of the air intake, instead regularly clean the condenser fins.
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Page 45: Refrigeration System
Service on the refrigeration system should be done by a qualified technician who is familiar with low temperature refrigeration systems. Please call Associated Environmental Systems to recommend a service company in your area. - Page 46 APPENDIX A 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.
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