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8
FCB100, FCB400 COMMISSIONING AND PROVING | PG/CORIOLIS/PROVING-EN REV. A
... 4 Electrical connections
CoriolisMaster FCB400
Figure 9: CoriolisMaster FCB400
In-Situ proving with a flow computer
1 Clamping connection
Threshold at prover and flow computer should be 3,5 V ±0,5 V
Figure 10: Connection for proving
Precondition:
•
The resistor network is installed inside the flow computer
as shown under Flow computer on page 6.
Change from one to two columns
In the case that flow computer panel provide a connector for the
prover.
1 Clamping connection
2 Cable gland for prover connection
Threshold at prover and flow computer should be 3,5 V ±0,5 V
Figure 11: Connection for proving
Proving connection when the meter has been removed
from the line
R1:
1 kΩ/ 0,5 W (between terminal 32 and 41)
R2: 1 kΩ / 0,5 W (between terminal Uco and 41)
Jumper wire: (between terminal 32 and 42 / 52)
Threshold at prover should be 3,5 V ±0,5 V
Figure 12: Add the resistor in the flowmeter
Note
For this configuration the "power mode" of the current out
31/32/UCO should be enabled.
Parameter in Menu "Input/Output / ...Cur. Out 31/32/Uco /
Loop Current Mode ⇒ set to Power Mode".
Add the resistor for proving:
Install the two resistors as shown.
Alternatively, the resistors can also be connected to the Prover:
R1: 1kR / 0,5 W (between GND and Pulse input +)
R2: 2kR / 0,5 W (between plus 24 V and Pulse input +)
Jumper wire: (between GND and Pulse input −)
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