ELECTRICAL CONNECTIONS
The monitoring unit is designed to be installed in a
control panel. The unit can be mounted either on a
35 mm symmetric DIN rail, or directly on a mounting
plate.
The drawing on page 6 shows the positioning of the
drill holes for mounting on a flat surface. The electrical
connections shall be made in accordance with the
electrical diagram (see also the top of the unit).
Connect a 24 VAC power source to terminals 14 and
16. Connect a normally open spring switch for reset
after alarm between terminals 22 and 23.
Connect the starter's interlock circuit between
terminals 11 and 12 so that the pump/turbine is shut
off when an alarm is issued.
Connect 29 and 30 with a jumper, except when a
3-lead system for compensation for the resistance of
the sensor leads is used.
Check before start that all leads are connected to the
right terminals and that the screws are tightened.
Disconnect all connections with voltages higher than
24 V before working on the unit.
6