Measuring Range: Set; Mechanical Position Indicator: Set - AUMA SAEx 07.2 Operation Manual

Commissioning
9.8.1.

Measuring range: set

Information
9.9.

Mechanical position indicator: set

38
Figure 27: View on control unit when switch compartment is open
[1] Potentiometer (travel sensor)
[2] Potentiometer min. (0/4 mA)
[3] Potentiometer max. (20 mA)
[4] Measuring point (+) 0/4
[5] Measuring point ( ) 0/4
The output current (measuring range 0
[4] and [5].
For measuring range setting, voltage must be applied at the position transmitter.
1. Move valve to end position CLOSED.
2. Connect measuring equipment for 0
value can be measured:
Check whether external load is connected to customer connection XK (for
standard wiring: terminals 23/24). Consider maximum load R
Or connect link across customer connection XK (for standard wiring: termi-
nals 23/24).
3. Turn potentiometer [1] clockwise to the stop.
4. Turn potentiometer [1] slightly in opposite direction.
5. Turn potentiometer [2] clockwise until output current starts to increase.
6. Turn potentiometer [2] in opposite direction until the following value is reached:
- for 0 20 mA approx. 0.1 mA
- for 4 20 mA approx. 4.1 mA
This ensures that the signal remains above the dead and live zero point.
7. Move valve to end position OPEN.
8. Set potentiometer [3] to end value 20 mA.
9. Approach end position CLOSED again and check minimum value (0.1 mA or 4.1
mA). If necessary, correct the setting.
If the RWG value cannot be reached, the selection of the reduction gearing must be
checked.
Option
1. Place indicator disc on shaft.
2. Move valve to end position CLOSED.
SAEx 07.2 SAEx 16.2 / SAREx 07.2
20 mA
20 mA
20 mA) can be checked at measuring points
20 mA to measuring points [4] and [5]. If no
SAREx 16.2
.
B