Electronic Position Transmitter Rwg; Measuring Range: Set - AUMA SAREx 07.2 – SAREx 16.2 Operation Instructions Manual

Commissioning
9.8.

Electronic position transmitter RWG

Technical data
Setting elements
9.8.1.

Measuring range: set

36
2. Turn potentiometer [1] clockwise to the stop.
End position CLOSED corresponds to 0 %
End position OPEN corresponds to 100 %
3. Turn potentiometer [1] slightly in opposite direction.
4. Perform fine-tuning of the zero point at external setting potentiometer (for remote
indication).
— Option —
The electronic position transmitter RWG records the valve position. On the basis of
the actual position value measured by the potentiometer (travel sensor), it generates
a current signal between 0
Table 10: RWG 4020
Data
Output current I
a
1)
Power supply U
V
Max. current consumption
Max. load R
B
Impact of power supply
Load influence
Temperature impact
2)
Ambient temperature
Transmitter potentiometer
1) Power supply possible via: AC, AM controls or external power supply
2) Depending on temperature range of the actuator: Refer to name plate
The RWG is housed in the actuator switch compartment. The switch compartment
must be opened to perform any settings. Refer to <Switch compartment: open>.
Setting is made via three potentiometers [1], [2] and [3].
Figure 28: 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.
SAEx 07.2 SAEx 16.2 / SAREx 07.2
20 mA or 4 20 mA.
3-wire or 4-wire system
0 20 mA, 4 20 mA
24 V DC (18 32 V)
24 mA at 20 mA output current
600 Ω
0.1 %/V
0.1 %/(0 600 Ω)
< 0.3 ‰/K
60 °C to +80 °C
20 mA
20 mA
SAREx 16.2
2-wire system
4 20 mA
14 V DC + (I x R ), max. 30 V
B
20 mA
(U 14 V)/20 mA
V
0.1 %/V
0.1 %/100 Ω
5 kΩ