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

Commissioning (basic settings)
9.9.1.

Measuring range: set

Information
9.10.

Mechanical position indicator: set

46
Figure 40: 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 20 mA) can be checked at measuring points
[4] and [5].
For measuring range setting, voltage must be applied at the position transmitter.
1. Move valve to end position CLOSED.
2. Connect ammeter for 0
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.
3.
Turn lower indicator disc until symbol
mark on the cover.
4. Move actuator to end position OPEN.
SAEx 07.2 SAEx 16.2 / SAREx 07.2
20 mA
20 mA
20 mA to measuring points [4 and 5].
(CLOSED) is in alignment with the
SAREx 16.2
AUMA MATIC AMExC 01.1