Figure 78: Torque measuring heads
[1] Torque switching head black in direction CLOSE
[2] Torque switching head white in direction OPEN
[3] Lock screws
[4] Torque dials
1. Loosen both lock screws [3] at the indicator disc.
2. Turn torque dial [4] to set the required torque (1 da Nm = 10 Nm). Example:
-
Black torque switching head set to approx. 25 da Nm ≙ 250 Nm for direction
CLOSE
-
White torque switching head set to approx. 20 da Nm ≙ 200 Nm for direction
OPEN
3. Fasten lock screws [3] again.
Information: Maximum tightening torque: 0.3 – 0.4 Nm
➥
The torque switch setting is complete.
9.5. Limit switching: set
The limit switching records the travel. When reaching the preset position, switches
are operated.
Figure 79: Setting elements for limit switching
Black section:
[1] Setting spindle: End position CLOSED
[2] Pointer: End position CLOSED
[3] Mark: End position CLOSED is set
White section:
[4] Setting spindle: End position OPEN
[5] Pointer: End position OPEN
[6] Mark: End position OPEN is set
9.5.1. End position CLOSED (black section): set
1. Engage manual operation.
2. Turn handwheel clockwise until valve is closed.
68
SA 25.1 – SA 48.1/SAR 25.1 – SAR 30.1
Commissioning (basic settings) AC 01.2 Intrusive HART
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