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TUBING CONNECTION
When the MPC Series Panel Mount MFC is panel-mounted, use tubing that does not stress the MFC
housing. If metal piping is directly connected to the 1/8" FNPT connector of the MFC, the MFC
should not be panel-mounted.
Connect the tubing to ensure the gas flows in the direction from 'IN' to 'OUT' as indicated on the
housing.
After connecting the tubing, check for any gas leaks. While performing the leak check, exercise
caution to avoid spillage or contact of the leak detection fluid to the housing, electrical wiring or
mating electrical connector. If fluid contact occurs, MFC malfunction or faulty operation may occur.
EXTERNAL ELECTRICAL CONNECTIONS
Prior to wiring, confirm:
Power supply source is off prior to wiring connection.
Wiring is correct prior to introducing power.
The event output does not exceed the specified output rating of the MFC. When driving a relay,
use a relay with a built-in diode for coil surge suppression.
ELECTRICAL CONNECTOR SPECIFICATIONS
Part No.: MCVW1.5/9-STF-3.5 (Phoenix Contact Mfg.)
Wire type: Either of single core wire or stranded wire applicable.
Compatible cable: 0.08 to 1.5mm
Appropriate length of stripped wire: 7mm
Compatible screw driver: Tip size 2.5 x 0.4mm (a flat-head driver)
INPUT/OUTPUT DESIGNATIONS
PIN
NAME/FUNCTION
NUMBER
1
POWER (24V)
2
POWER GND
3
EV1
4
EV2
5
DI1
6
DI2
7
AI
8
A0
9
SIGNAL GND
2
(SWF=28 to =16)
DESCRIPTION
Power (+24 Vdc)
Power supply ground
Event output 1
Event output 2
External switch input 1
External switch input 2
Analog setpoint voltage input
Analog flow rate voltage
output
Signal ground
- 11 -
COMMENTS
Open collector non-isolated output
Switching input (OPEN/GND)
0 to 5 Vdc or 1 to 5 Vdc
(selectable)
Input/output signal common.
Signal ground is connected with
power supply ground within MFC.
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