Onicon F-2600 Instrukcja Użytkownika Pobierz pdf (Strona 41)

11451 Belcher Road South, Largo, FL 33773 • USA • Tel +1 (727) 447-6140 • Fax (727) 442-5699 • [email protected]

F-2600 & F-2700 Vortex Flow Meter Manual 02/15 - 0808-7 / 19204 Page 41

2.7 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 one dual strip terminal

block (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 tting at each conduit entry. If conduit seals are used, they must be

installed within 18" (457 mm) of the enclosure.

4-20

mA 3

PWR

4-20

mA 1

VDC

OUT

+ - +

4-20

mA 2

- + - +

RS485

RS485 GND

OPTION 2

ALARM

HOT

PULSE

OUT

NEUT

FREQ

OUT

+ - +

ALARM

-+ -

OPTION 1

1 2 3 15 2 3

ALARM

- + -

4 5

Figure 26. AC Wiring Terminals

2.7.1 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.

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.

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