WIKA GDM-RC-100 Manual De Instrucciones página 15

5. Commissioning, operation
Wiring scheme
Wiring scheme
12 13 11 21 23 22 32 33 31 41 43 42
Terminal
S1
Status of switching output: Not pressurised
Schematic diagram of the switch behaviour with rising or falling gas density over time:
P
@ 20 °C
SP1
SP2
SP3
SP4
Switches Terminals
S1
11 - 13
11 - 12
S2
21 - 23
21- 22
S3
31 - 33
31 - 32
S4
41 - 43
41 - 42
The actual order of the switch points is customer-specific.
If the gas density monitor is not pressurised, all contacts are not actuated mechanically.
Fourth switch point: Pin 41 is connected to pin 42 (1).
If the gas density monitor is pressurised, an overtravel of the switch point will switch the
switch contact from pins 41-42 to pins 41-43.
The switch contact will not be switched back from pins 41-43 to pins 41-42 until the
value drops below the switching threshold.
WIKA operating instructions, model GDM-RC-100
S2


S3

EN
S4
t
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