Despatch 926E Equipment Manual (C-155)Rev 2/11 - Manual (Page 8)

3
INTRODUCTION
The Despatch Industries 900 Series Environmental Bench Chambers are designed for
high performance and close temperature tolerance. A closed air flow system transfers
heat to or from objects under test. The chamber is heated by a low- inertia coil heater
and cooled by the injection and evaporation of a liquefied gas. An advanced control
system holds chamber temperature to close tolerance.
Units are ideal for small lot qualification testing, burn-in, life test, temperature cycling or
research and development. All models may be easily modified to add access ports,
fixturing, instrumentation, etc., to meet special customer needs. All models are
designed for continuous use with ease of operation and maintenance in mind.
Figure 1: 900 Series Environmental Chamber Bench Oven
230 Volt, 50/60 HZ Operation
All 920 and 930 series units are designed for 115 volt, 50/60 Hz. operation. An optional
transformer kit is available to allow these units to be used on 230 volt power supply.