Weidmuller PTX800A - Configurable counter and totalizer - Handbuch (Seite 44)

44
Calibratetheoutput:
. Calibrate the outputs to the new output range and type.
InputTypeSelection
Input type selection is similar to output type selection except that the
input type is determined by the values of components on the main
board. You can either return the unit to the factory for modification or
change the components on the main PCB:
To change the input type:
ChangethevaluesofR1,R2,R3:
1. Gently remove the backplate (it is held in place by four lugs).
. Slide the electronics from the housing.
. Change the components to the required values:
Inputrange R1 R2 R3
-4 to +4 mA  Ω 68 kΩ O mit
-11 to +11 V O mit 1 MΩ 4 kΩ
(see diagram below for location).
4. Look inside the housing and note that there are connectors that
mate with the display board.
5. Slide the electronics gently back into the case. Carefully moving the
board until the keypad connectors engage with the display board.
6. Replace the backplate.