Meriam M2110F SMART FLOW GAUGE User Manual
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14.1 ELECTRICAL CONNECTIONS
Setpoint models come with a terminal block interface while the Current Loop model comes with an eight-pin
circular connector/cable interface. Note: The cable is supplied with the Current Loop model.
14.1.1 Power Supply Options
The M2110F SMART GAUGE can be supplied in three possible hardware configurations.
1. Battery Model ..………….Unit powered by internal batteries
NO EXTERNAL POWER SUPPLY REQUIRED
2. Setpoint Model …………..Unit includes two programmable relay outputs
EXTERNAL POWER SOURCE: 24 VDC, 115 VAC or 230 VAC
3. Current Loop Model …….Unit includes 4-20 mA output
EXTERNAL POWER SOURCE: 24 VDC
14.1.2 Setpoint Model Interface Connections
Terminal
Description
Function
Notes
1
SET1 / NO
Relay1 output
Normally open
2
SET1 / C
Relay1 output
Common
3
SET1 / NC
Relay1 output
Normally closed
4
SET2 / NO
Relay2 output
Normally open
5
SET2 / C
Relay2 output
Common
6
SET2 / NC
Relay2 output
Normally closed
7
No Connection
None
8
RS232 Common
RS232 interface common connection
0 VDC
9
RS232 Tx
RS232 transmit output connection
For Serial Menu
10
RS232 Rx
RS232 receive input connection
For Serial Menu
A
Frame Ground
Earth Connection
B
GND
AC Ground
DC POWER SUPPLY CONNECTIONS
C
0 VDC
Common
Connect only if not using AC inputs
D
+24 VDC IN
+24 VDC Input Nominal
Connect only if not using AC inputs
AC POWER SUPPLY CONNECTIONS
Reconnectable 115/230 Primary
115 VAC
INPUT
230 VAC
INPUT
E
Reconnectable Transformer Primary
Jumper E to H
NC
F
Reconnectable Transformer Primary
Jumper F to J
NC
H
L2
Reconnectable Transformer Primary
(See E above)
L2 / 230 VAC
J
Reconnectable Transformer Primary
(See F above)
Jumper J to K
K
N
Transformer Primary Fused Input
Line Neutral
L
L1 / L
Transformer Primary Fused Input
L 115 VAC
L1 / 230VAC
Note: See Appendix for wiring specifics.