Environmental Chambers that Give you the Technical Edge
ESS Thermal Shock Chambers
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Thermal Shock Chambers – Air to Air ESS (Environmental Stress Screening) Chambers The TSV, TSH, TSD Series
What is ESS?
ESS is a means of screening products to expose defective parts or process problems that can’t be detected upon visual inspection or electrical testing. Developed to detect product defects and production flaws in electronics manufacturing, ESS uses thermal cycling or vibration to expose failures. Environmental stress screening chambers can be used as part of the manufacturing process or they can be used in new product qualification testing.
Russells air-to-air thermal shock chambers meet the demands of today’s environmental stress screening with proven performance in installations around the world. Our direct transfer method between hot and cold is an economical method to achieve rapid part temperature change for ESS or thermal shock.
Thermal Shock Chambers
Russells air-to-air thermal shock chambers are available in three configurations:
- TSV Series Two Zone (hot/cold) Vertical – direct hot/cold transfer
- TSH Series Three Zone (hot/ambient/cold) Horizontal – direct hot/cold transfer with selectable ambient temperature dwell required for some MIL-STD’s.
- TSD Series Double Duty (hot/cold/hot) – direct hot/cold transfer with additional hot zone and second transfer carriage effectively doubles throughput capacity for high volume production.
- Sizes from 30 l (1 cu ft) to 450 l (16 cu ft) capacity
- Cold zone temperatures to -73° C (-100° F)
- Hot zone to 200° C (392° F)
- Automatic transfer of test specimens between zones
ESS Chambers
ESS Chambers for temperature cycling environmental stress screening:
- Cascade low temperature to -73° C (-100° F)
- Single stage to -20° C (-4° F)
- High temperature to 177° C (350° F)
- Transition rates to 30° C/min (54° F/min)
- Humidity from 20% to 95% RH.
- Available with passive or power product fixturing
- Cart based or backplane style
Thermal Shock Chambers Features:
Standard
- Chamber liners heliarc welded and dye checked brushed 300 stainless steel.
- Fiberglass insulation, urethane foam insulation
- Welded structural steel frame.
- Service panels removable with 1/4 turn fasteners
- Chamber fan motors externally located.
- Dual silicone door gaskets.
- Cold Chamber drain.
- Microprocessor temperature programmer controller
Thermal Shock Chambers Performance
- Temperature range for mechanical refrigeration:
-100°F/-73°C to 392°F/200°C - Temperature range for liquid nitrogen refrigeration:
-301°F/-185°C to 392°F/200°C
Performance
- 202E, 107D conditions A, F
- 883D, 1010.7 conditions A, C
Russells TS-Series thermal shock chambers are available in sizes from 2 to18 cu./ft.. A Russells application engineer can assist you in selecting the chamber configuration and size that is most economical for your testing needs. Let Russells give you the competitive edge!
Cooling
- Low or zero ozone depletion refrigerants.
- Cascade or liquid nitrogen cooling.
- Energy saving refrigeration bypass capacity control.
- Low stage desuperheater.
- Oil pressure switches.
- Compressor suction and discharge pressure switches.
- Water cooled condenser on mechanical refrigeration models.
- Vapor tank and condenser ASME certified.
- Compressor overload protection.
- High stage compressor crankcase heater.
- Compressor head fans.
- Low stage oil separator.
- All piping joints silfos or silver soldered.
- Stainless steel compressor condensate parts.
Electrical
- All wiring meets NEC standards
- 120 volt control circuit transformer.
- Fully enclosed electrical panel.
- All circuits fuse of circuit breaker protected.
- Full system function switches with system status pilot lights
- Incandescent interior lighting
- All wiring numbered or color coded.
- High temperature limit safety.
- Master heating circuit contactor.
- Air circulator/heater interlock.
- Balanced load on 3 phase power.
- Chamber door interlocks.
Optional Accessories
- Traveling access port to transfer basket.
- Transfer basket shelves or fixturing.
- Viewing windows.
- Refrigeration gauges.
- Refrigeration sound deadening package.
- Remote refrigeration systems.
- LN2/CO2 boost cooling.
- Air cooled condenser.
- Dry air purge system.
- Running time meter.
- Electrical disconnect switch.
Optional Instrumentation
- VS-1 PLC programmer/controller
- Product safeguard redundant over/under temperature limit.
- Circular or electronic chart recorders.
- Computer communications, networking, data‐logging software.
- Free standing remote instrument console.