MSR820V
12400-0701-00
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9
Commissioning
When switched on, all LEDs light up for 1s.
9.1 Normal operation
PTC thermistor T1 .. T8
Button
Alarm messages
Sensor
LED
Reset
(Ohm)
red
green
Y1, Y2
< 1600
off
on
No alarm
> 3650
on
on
Alarm, response temperature exceeded
< 1600 flashes
on
Storage of an alarm
< 1600
off
on
X
Reset an alarm
< 20
on
flashes
Alarm, sensor short circuit
> 40
off
on
No alarm
9.2 Switching PTC thermistor circuits on and off
During operation, individual PTC thermistor circuits can be switched on or off.
Button
Function
Sensor Select
press
•
Selection of the PTC thermistor circuit
•
red LED of selected circuit flashes quickly
On/Off (Reset)
press
•
green LED on, PTC thermistor circuit switched on
•
green LED off, PTC thermistor circuit switched off
Sensor Select
press
•
Selection of the next PTC thermistor circuit
•
after PTC thermistor circuit T8, return to normal operation takes
place
≥ 2s Sensor Select
press
•
immediate return to normal operation
≥ 5s no button
•
Return to normal operation
