Hydrostop
2.2
The dry-running sensor may only be used with garden irrigation systems and pond
pumps or similar. It must
not
be used in liquid food handling installations (drinking
water or drinks).
Note:
Pumps designed for pumping liquids cannot prime air for a prolonged period:
the pumped liquid provides – similar to the oil in an automobile engine – lubri-
cation and cooling. If the liquid is absent the pump can be damaged.
The Hydrostop dry-running sensor prevents a pump priming air. It is installed
in the pump’s discharge line. As long as there is water in the line, the water
pressure is sensed by a pressure-sensing switch, closing the circuit supplying
the power to the pump, and the pump runs. If no liquid is pumped, the spring-
actuated pressure-sensing switch opens the supply circuit, and the pump
stops.
Operating controls
1. Plug
2. Tee fitting,
threaded
3. Sensor enclosure
4. Female connector
5. Push-button
Summary of Contents for Dry-running Sensor Hydrostop
Page 48: ...Hydrostop 10 1 Hydrostop 1 0 H07 RNF VDE VDE 0100 702 738 XT0001RU1 fm 1...
Page 49: ...Hydrostop 10 2 Hydrostop 1 2 3 4 5...
Page 50: ...Hydrostop 10 3 1 2 3 4 5...
Page 51: ...Hydrostop 10 4 1 2 0 8...
Page 52: ...230 50 60 2200 10 IP X 4 35 C 6 0 0 8 33 3 G1 Hydrostop 10 5 763 214 9390...
Page 53: ......
Page 54: ......
Page 55: ......
