Overview
14
Bench Top User’s Manual
3.2.2 Watlow F4 Programmer/Controller
The Watlow F4 Instrumentation enables environmental testing under both constant conditions and
programmed conditions, referred to as the “constant mode” and the “program mode” respectively.
Constant Mode
The constant mode maintains the user-set target temperature (& humidity) constant.
FIGURE 3.2.TEST CONDITIONS IN CONSTANT MODE
Program Mode
The program mode changes chamber temperature and humidity according to a user-set program.
This program is created before testing starts. It contains multiple steps. Each step contains temperature,
humidity, and other settings as with the constant mode. Settings can be maintained throughout an entire
step or changed at the constant rate.
FIGURE 3.3.TEST CONDITIONS IN PROGRAM MODE
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