Grundfos DMX Series

28 15.720023-V3.0
DMX model 227
7.4 Screwing the Sensor into the Dosing Head
● Screw in the sensor from the lower side into the hole of the dosing head
flange (M14 x 1.5).
❏ Now the diaphragm breakage indication is ready for start-up.
7.5 Commissioning
CAUTION Carry out a functional check before commissioning!
Functional Check
● Dip the sensor into water
- Green LED and red LED are lighting:
Sensor and electronics are ready for operation!
- One or more LED do not light:
Sensor or electronics are defective!
• Call GRUNDFOS service.
● Carefully dry the senor.
- Only the green LED still lights:
Sensor and electronics are ready for operation!
- the red LED still lights:
Sensor or electronics are defective!
• Call GRUNDFOS service.
!
WARNING Do not open electronics or sensor!
Repair only by authorized qualified personnel.