GESTRA NRR 2-52 - Changing the Equipment Settings

34 NRR 2-52, NRR 2-53, URB 55 - USA- Installation & Operating Manual - 850698-00
Changing the equipment settings
DANGER DANGER
Danger of death from electric shock! Do not touch live connections on terminal
strips.
■
Always switch off the voltage to the equipment before performing work on the
terminal strips.
■
Check that the plant is not carrying live voltage before commencing work.
If necessary, you can change the input and function of the NRR 2-52, NRR 2-53 level controller at
any time using code switch D (see Fig. 20).
Make changes before installing the level controller, when access is easier.
You will need the following tools:
■
Flat blade screwdriver, size 3/32in (2.4mm), fully insulated
■
Pozidriv screwdriver size PZ1, fully insulated
Proceed as follows:
1. Switch off the supply voltage to the equipment or plant.
2. Unscrew and pull off the lower terminal strip, see Fig. 10.
3. Set code switch D (see Fig. 10) as desired, see Fig. 20.
4. When your changes are complete, put the terminal strip back on and screw in place.