JUMO 14597 safetyM STB/STW Ex - Safety Temperature Limiter and Safety Temperature Monitor Operating Manual - Manual (Page 33)

5 Startup of the device
27 2013-04-01
5.7 Functional test
After the electrical connection in Chapter 4.3 you should proceed with the following steps for your safety:
h
Set the limit value that the plant must not exceed or drop below.
h
When all parameters are in the valid range, press the RESET key until the green LED OK is lit.
h
Simulate a limit value exceedance
without installing the sensors in the potentially explosive area at first and check if
the alarm relay output permanently switches off the plant. When the measured value is back in the valid range, the K1 and
K2 LEDs must light up red.
h
Manually set the device back by using RESET until the OK LED lights up again.
v
Chapter 5.5 "Acknowledging alarms using the reset key (for temperature limiter STB only)"
v
Chapter 7.4.2 "Probe arrangement in the Ex-area"