Flowserve NRS1-9 - Manual (Page 11)

11
Tools
■ Screwdriver for slotted screws, size 2.5, completely insulated according to
VDE 0680.
Commissioning
Check wiring
Check whether switching controller NRS 1-9 and the associated electrode
NRG 16-36 are wired in accordance with wiring diagram, fig. 1.
Apply power
Apply mains voltage. The green LED lights up, fig. 2. 6
Tools
Wiring
– continued –
Basic Adjustments
Change-over for sensitivity
The switching controller can be set to two different sensitivities. For this purpose a
code switch consisting of four individual switches is provided on the rear of the
controller.
Range 1: Sensitivity from 10
µ
S/cm (factory setting)
Range 2: Sensitivity from 0.5
µ
S/cm
1. Cut off power supply to switching controller.
2. Loosen cover screws and unplug cover from its base , fig. 1.
3. Move all four individual switches of the code switch to the desired range using
a small screwdriver, fig. 5.
■ Screwdriver for slotted screws, size 2.5, completely insulated according to
VDE 0680.
A B C
G