Flowserve NRGS15-1 - Manual (Page 15)

15
Establishing Functions
– co ntinu ed –
Adjust function
1. Undo the housing screws and remove the housing lid.
2. Set the code switch to the desired function (see “Select function“). To set the code
switch located on the electronics insert (see Fig. 5) use a screwdriver with a thin
blade.
3. Use a waterproof marker to enter the established functions in the labelling boxes on
the lid (see Fig. 4).
4. After adjusting the functions replace housing lid and fasten the housing screws .
Set sensitivity range
The sensitivity is set at our works to > 10µS/cm.
If the electrical conductivity of the boiler water is below 10µS/cm at 25 °C you have to
change the sensitivity range.
1. Undo the housing screws and remove the housing lid .
2. Set the code switch such that the desired function is established. To set the code
switch located on the electronics insert (see Fig. 5) use a screwdriver with a thin
blade.
The following functions can be adjusted via code switch:
3. After adjusting the functions replace housing lid and fasten the housing screws .
Tools
■ Bolt cutter
■ Hacksaw
■ Flat file, medium cut
■ Screwdriver for cross head screws, size 2
■ Screwdriver for slotted screws, size 2.5, completely insulated according to VDE 0680
Code switch S 1 Setting
Sensitivity > 0.5 µS/cm at 25°C
Sensitivity > 10 µS/cm at 25°C
G F
6
6
F G
G F
6
6
ON
1 2 3 5 4 6 7 8 910
ON
1 2 3 5 4 6 7 8 910
F G