SR881 operation instruction of solar pump station
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3.2 Flow check
The flow counter is used for measurement and display of flow rate, in order to guarantee the
flawless function of the measuring device the system must be flushed and free from foreign
substances.
Digital flow meter（1-16L/min） Fissol mechanical flow meter（2-12L/min）
3.3 Electrical connection
Warning: disconnect the controller from power supply before opening the housing!
The controller is already integrated in the station and ready to plug in, display and digital
counter are already preinstalled at factory. For maintenance or service work, it needs to take
out the controller from station, doing follows below steps:
Switch off the system, disconnect plug from
the mains.
Remove the front half of the insulation.
Unscrew the cross-recessed screw on the
front cover of controller A and remove cover B
by pulling it leftwards
Doing reverse steps to remount the controller.
For further information on electrical connection of the controller, please see manual of
controller (terminal layout).
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