Stand-by Pump Control for 2 Electrically Driven Pairs of Pumps, with Black-out Function
The stand-by pump control AHD 408 E is a microprocessor-controlled device for the independent control and monitoring of 2 pairs of electrically driven pumps, with stand-by control and black-out-function.
Product Features
Compact design for console, panel or switchbox installation
Front dimension 72mm x 144mm, insertion depth 216mm
Degree of protection IP 20 (front side, with protection cover IP 54)
Weight approx. 1.0 kg
Power supply 24 V DC +30%/-25%
Selector push switch for main pump and push switch for setting the pair of pumps to operation, LED indication for operation of main or stand-by pump, stand-by alarm and normal pressure indication integrated in front panel of the unit for each pair of pumps
After switching on, build-up of pressure is performed by stand-by pump, thereafter change over to operation with main pump
Automatic start of stand-by pump in case of pressure loss with stand-by alarm
Reset of stand-by alarm by means of push switch “ON”
Black-out function (LED indication in front panel of the unit) with switching off of all pumps, and configurable delayed start at restoration of mains power, to avoid overload conditions
Lamp test push button