Rwg Electronic Position Transmitter; Measuring Range: Set - AUMA SAR 16.2 Operation Instructions Manual

SA 07.2 SA 16.2 / SAR 07.2
AC 01.2 Intrusive
10.3.

RWG electronic position transmitter

Technical data
Setting elements
10.3.1.

Measuring range: set

SAR 16.2 Control unit - electromechanical
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).
The RWG electronic position transmitter 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 23: 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 actuator 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 66: 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
Commissioning (optional equipment settings)
20 mA or 4 20 mA.
3-wire and 4-wire systems
0 20 mA, 4 20 mA
24 V DC (18 32 V)
24 mA at 20 mA output current
600 Ω
0.1 %/V
600 Ω)
0.1 %/(0
< 0.3 ‰/K
60 °C to +80 °C
20 mA
20 mA
20 mA to measuring points [4 and 5].
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
59