11.1.5 Maintaining the diaphragm leakage sensor
DANGER
Electric shock
Death or serious personal injury
● Do not work on the electronic device of the diaphragm leakage sensor.
1. Check the diaphragm leakage sensor.
2. If the sensor is defective, replace it with a new one.
3. If the electronic unit is defective, call Grundfos service.
The electronic unit is maintenance-free.
Related information
• 11.1.4 Checking the diaphragm leakage sensor
11.1.6 Technical data of the electronic unit for optical sensor
Parameter
Value
Maximum mains voltage deviation
± 10 %
Contact load
250 V / 6 A, maximum 550 VA
Power consumption
1.15 VA
Enclosure class
IP65
Permissible ambient temperature
0-40 °C
Models
Product number
Mains voltage
96725701
230 V, AC
91835310
115 V, AC
11.1.6.1 Dimensional sketch of the electronic unit for optical sensor
Dimensions and drilling scheme for the electronic unit for optical sensor. All measurements in
[mm].
DMX 221 | |
60
