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F-1500 Turbine Flow Meter Manual 02/18 - 1018-6 / 35726
Page 21
1. Disconnect power to the flow meter.
2. Loosen the small set screw which secures the electronics enclosure cover. Unscrew and
remove the cover.
3. Loosen the four captive screws.
4. Carefully pull the display/microprocessor board away from the meter standoffs. Make
sure not to damage the connected ribbon cable.
5. Rotate the display/microprocessor board to the desired position. Maximum turn, two
positions left or two positions right (180°).
6. Align the board with the captive screws. Check that the ribbon cable is folded neatly
behind the board with no twists or crimps.
7. Tighten the screws. Replace the cover and set screw. Restore power to the meter.
2.5
LOOP-POWERED FLOW 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 wiring procedures must be performed with the power off.
The NEMA 4X enclosure contains an
integral wiring compartment with one dual
strip terminal block (located in the smaller
end of the enclosure). Two ¾" 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.
LOOP
POWER
+
-
FREQ
OUT
PULSE
OUT
-
- +
+
OPTIONAL
BACKLIGHT
POWER
+ -
Figure 8. Wiring Terminals for Loop-Powered Version
2.5.1 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 block.
DC Power Wiring
Connect 4-20 mA loop power (12 to 36 VDC at 25 mA, 1W max.) to the +Loop Power and –
Loop Power terminals on the terminal block. Torque all connections to 4.43 to 5.31 in-lbs (0.5
to 0.6 Nm). The DC power wire size must be 20 to 10 AWG with the wire stripped ¼" (7 mm).
Figure 9. DC Power Connections