240634 / 8146662300
2019-05-27·BA00·III·en·04
Commissioning
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Safety temperature monitor and limiter
Series 8146/5041-STW, 8146/5041-STB,
8146/5051-STW+STB
8.1
Adjustment of Temperature Controller
Setting desired values for safety temperature monitor
The desired value must be set before commissioning. To this end, the desired value can
be set above the attached scale as shown on the following diagram.
16648E00
Limit value settings for safety temperature limiters
A functional test is required, according to the relevant regulations,
e.g. in acc. with 2014/34/EU.
Setting the limit value according to the scale:
• Set the limit value on the setpoint adjuster above the scale.
• Secure the setting by sealing the setpoint adjuster
(e.g. using a temperature-resistant screw locking varnish).
Setting the limit value according to the operation-specific properties of the system:
• Heat the temperature sensor – inside the system – to the desired limit temperature
(allow at least 5 minutes for temperature to equalize), while measuring and monitoring
the exact temperature on the temperature sensor with a calibrated comparison
measuring instrument.
• Turn the setpoint adjuster from the scale value toward the initial scale value to
establish the desired switching point position (open circuit 1 to 2, close circuit 1 to 4).
• Secure the setting by sealing the setpoint adjuster
(e.g. using a temperature-resistant screw locking varnish).
