Metabo Dry-running Sensor Hydrostop - Manual (Page 10)

Hydrostop 2.3
Installation
Risk of electric shock! 
The dry-running sensor must be installed such that sensor enclosure, power
supply cable and plug cannot get wet under any operating condition.

If there is a risk of the discharge line, with the dry-running sensor installed, fal-
ling into water, it must be properly secured (e.g. with piping clips).

Install the dry-running sensor so that the sensor enclosure, power supply cable
and plug cannot be flooded when the pump is started.
1. Install the tee fitting in the discharge line (=behind
the pump). The flow direction is irrelevant.
2. In order for the dry-running sensor to shut down
the pump as early as possible, the distance bet-
ween pump and tee fitting should be as short as
possible (but with sufficient distance to any
water!).
3. Screw sensor enclosure into tee fitting.
4. Plug dry-running sensor into a properly installed
and earthed outlet. The plug must remain accessi-
ble at all times, so it can be disconnected imme-
diately from the power supply in case of a fault.
5. Plug pump into the dry-running sensor’s female
connector.