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F-1500 Turbine Flow Meter Manual 02/18 - 1018-6 / 35726
Page 24
2.6 HIGH POWER METER WIRING CONNECTIONS
!
WARNING
To avoid potential electric shock, follow National Electric Code safety practices or your local code
when wiring this unit to a power source and to peripheral devices. Failure to do so could result in
injury or death. All AC power connections must be in accordance with published CE directives.
All wiring procedures must be performed with the power off.
The NEMA 4X enclosure contains an integral
wiring compartment with multiple dual
strip terminal blocks (located in the smaller
end of the enclosure). Two 3/4" female NPT
conduit entries are available for separate
power and signal wiring. For all hazardous
area installations, make sure to use an agency-
approved fitting at each conduit entry. If
conduit seals are used, they must be installed
within 18" (457 mm) of the enclosure.
4-20
mA 3
AC
PWR
IN
4-20
mA 1
24
VDC
OUT
+ - +
4-20
mA 2
- + - +
RS
485
RS
485
RS
485
G
ND
-
OPTION 2
+
ALARM
2
HO
T
PULSE
OUT
NE
UT
FREQ
OUT
+ -
+
ALARM
1
-
+
-
4
OPTION 1
1 2 3
1
5
2 3
ALARM
3
- + -
4 5
+ -
2.6.1 Input Power Connections
To access the wiring terminal blocks, locate and loosen the small set screw which locks
the small enclosure cover in place. Unscrew the cover to expose the terminal blocks.
!
CAUTION
The AC wire insulation temperature rating must meet or exceed 85°C (185°F).
AC Power Wiring
The AC power wire size must be 20 to 10 AWG with the wire stripped 1/4 inch (7 mm).
The wire insulation temperature must meet or exceed 185°F (85°C). Connect 100 to 240
VAC (5 W maximum) to the Hot and Neutral terminals on the terminal block. Connect the
ground wire to the safety ground lug ( ). Torque all connections to 4.43 to 5.31 in-lbs
(0.5 to 0.6 Nm). Use a separate conduit entry for signal lines to reduce the possibility of
AC noise interference.
Figure 16. AC Wiring Terminals
100 to 240 VAC @ 5 Watts Max.
Chassis screw safety
ground must be used
for proper operation.
Figure 17. AC Power Connections