JUMO EM Series User Manual

6 Settings
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6.3 Self-monitoring on the STB and STW (STB)
NOTE!
If the measuring system fails, i.e. if the expansion liquid has leaked, then the pressure under the dia-
phragm drops and the circuit is permanently open. It is no longer possible to reset the system.
The electrical circuit opens when cooling the probe of STW (STB) and STB down to the negative tem-
perature range, but it then closes again if the temperature rises. The STB must be unlocked manually if
the minimum probe temperature is exceeded.
The STW unlocks itself automatically.
6.4 Use of the STW (STB) as STB
CAUTION!
The lock-out facility to DIN EN 14597 must be ensured by the subsequent circuit. This circuit
must comply with VDE 0116.

JUMO EM Series Specifications

General

Housing Material	Plastic
Temperature Range	-50 to 400°C
Display	LCD
Power Supply	24 V AC/DC
Output	Relay, Analog
Input	Analog
Control Mode	PID, On/Off