Finishing The Transmitter Connection (Wall Mount Housing) - Siemens SITRANS F Operating Instructions Manual

If the input is galvanically isolated the polarity does not need to be inverted.
R
V
c
I
R
L
V
c
R
L
V
c
0 ≤ R
Activate or deactivate digital input on channel 7 (freeze totalizer) or channel 8 (clear totalizer)
1. Apply voltage V
2. Apply short circuit between pins to deactivate function.
See also
Connecting Inputs/Outputs (Page 30)
5.4.5

Finishing the transmitter connection (wall mount housing)

Connection check-up
1. Check individual wire and cable installations by tugging firmly.
2. Firmly tighten cable glands and insert blanking plugs in unused cable entries.
3. Close flowmeter cover.
4. Tighten the six cover securing spring screws.
SITRANS FST020 IP65 (NEMA 4X)
Operating Instructions, 05/2022, A5E41425845-AC
5.4 Transmitter power supply, communications and I/O connections
= 250 Ω typical, 750 Ω maximum
= 24 VDC typical / 30 VDC maximum
= 4-20mA
= Loop wire resistance (both ways) plus User's input load resistance.
= +30 VDC max.
= 3K Ω minimum
Digital Inputs TB1-11 / TB1-12 and TB1-13 / TB1-14
≤ 1000 Ω
L
according to your wiring to activate function on channel 7 or channel 8.
C
Isolated 4-20mA Output TB1-1/2
Pulse output TB1-8 / TB1-9
= (10V + 0.02 x RL) max. 2 ≤ Vc ≤ 30 VDC
Connecting
33