Measuring Range: Set - AUMA SAEx 25.1 Operation Instructions Manual

SAEx 25.1 SAEx 40.1 / SAREx 25.1
ACExC 01.2
Technical data
Setting elements
10.2.1.

Measuring range: set

SAREx 30.1
Table 27: RWG 5020
Data
Output current I
a
1)
Power supply U
V
1)
Short-circuit current I
K
1)
Power P
Max. load R
B
Impact of power supply
Load influence
Temperature impact
Transmitter potentiometer
Ambient temperature
Explosion protection
EC type test certificate
1) Power supply via external, intrinsically safe (Ex ia or Ex ib) power supply unit with type test certificate
meeting the technical requirements of RWG 5020 Ex.
2) For heater in switch compartment
3) Ambient temperature 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 89: View on control unit when switch compartment is open
[1] Potentiometer (travel sensor)
[2] Potentiometer min. (4 mA)
[3] Potentiometer max. (20 mA)
[4] Measuring points 4
The output current (measuring range 0
points [4].
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
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 back potentiometer [2] until a value of approx. 4.1 mA is reached.
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.
Commissioning (optional equipment settings)
2-wire system
4 20 mA
10 28.5 V DC
< 200 mA
< 0.9 W
(U 10 V)/20 mA
V
0.1 %
0.1 % (R = 0...600 Ω)
B
< 0.1 ‰/K
5 k
2)
60 °C / 40 °C bis +60 °C
II2G Ex ib IIC T4
PTB 03 ATEX 2176
20 mA
20 mA) can be checked at the measuring
20 mA to the measuring points [4].
3)
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