EWS chambers are solid, one-piece construction, using fiberglass insulation and an angle-iron frame. The stainless steel interior liner is reinforced and continuously welded, including leak-testing for integrity.
- Temperature range up to 150°C
- Temperature-cycling faster than 10°C/min.
- Capabable of long-term 85°/85% tests
(Conventional chambers, like our EWP models, are built using panels with foam insulation that cannot withstand higher temperatures and are more susceptible to leaks at the seams under extreme conditions, such as fast temperature cycling.)
The angle-iron frame provides enough structural strength to allow a full-opening door for easy loading of large arrays without restriction. A full-opening door can also allow floor-space saving over panel chambers.
Comparison

Note: Actual change rate capability is determined by selection of heating/cooling system based on your requirement.
Easy-to-use Programmer
In addition, the P-300 touch-screen controller makes running an ESPEC environmental test chamber a breeze. The full-color, touch-screen interface is remarkably easy to use and understand. The P-300 Touch Screen Controller can be managed remotely via our Ethernet/LAN-based Web Controller or RS-232 serial port.
Features for Solid Walk-in Chambers
- Solid-construction chamber is a one-piece welded structure with six inches of fiberglass insulation and a 304 stainless steel interior
- Full-opening door(s) with heated windows
- One 4" (100mm) diameter cable port with silicone plug
Refrigeration and Plenum
- Modular or Integrated Air Plenum with cooling coil, wire heaters, and two circulator blowers
- Non-CFC refrigeration system using Copeland Discus or Scroll compressors
- Automatic water regulator controls water usage on water cooled models
- Humidity system includes steam generator and dehumidification coil
System Controls
- Instrumentation console mounted to the right of the chamber door
- Three levels of overheat protection including an independent, adjustable sensor
- ESPEC's Exclusive P-300 Programmer
Optional Capabilities
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