Safety Instructions; Connecting The Equipment - GPI GM Serie Guía De Operaciónes

CAUTION
This transmitter is not yet FM Approved. Therefore,
use of this transmitter with an approved metering
system voids FM Approval.
NOTE:.This.transmitter.is.loop.powered,.requiring.an.
input. power. supply. of. 8.5. to. 35. volts. (24. VDC. is.
typical)..
NOTE:.Setpoint.calibration.of.the.transmitter.is.required.
for.the.4-20.mA,.0-20.mA.and.0-5.V.output.options.

SAFETY INSTRUCTIONS

•. When.measuring.flammable.liquids,.observe.precau-
tions.against.fire.or.explosion.
•. When.working.in.hazardous.environments,.always.
exercise.appropriate.safety.precautions.
•. When.applying.external.power.to.the.transmitter,.use.
DC.power.only.
•. Disconnect.external.power.to.the.transmitter.before.
detaching.or.attaching.input.or.output.wires.
•. Ground.loops.between.sensor.and.user.equipment.
can.damage.the.transmitter.and.can.be.dangerous.
•. If. you. cannot. galvanically. isolate. the. sensor. from.
earth.ground,.you.may.need.to.use.the.transmitter's.
optically.isolated.inputs.
•. Be.sure.O-rings.and.seals.are.kept.in.good.repair.
INSTALLATION
.
CAUTION
Installation should be performed only by qualified
personnel, and in accordance with local governing
regulations.
Environmental
Choose. a. mounting. location. suitable. for. the. remote.
transmitter..The.ideal.mounting.location.is.where.the:
•. turbine.meter.is.as.close.as.possible.
•. mounting.surface.has.minimal.vibration.
•. ambient.temperature.is.+32°.F.to.+140°.F.(0°.C.to.
+60°.C).when.using.remote.display.
•. cable.lengths.are.minimal.
Avoid. mounting. locations. where. the. remote. trans-
mitter.is:
•. subject.to.constant.exposure.to.water.or.other.liquids.
(occasional.low-pressure.splashing.will.not.harm.unit.
if.cable.entry.points.are.well-sealed).
2
•. subject.to.>5g.shock.loading.
•. facing.the.sun.directly.for.long.periods.of.time.
•. close.to.high.voltage /current.runs,.DC.motors,.in-
ternal.combustion.engines.or.frequency.inverters.
Cable Guidelines
4-20.mA.Current.Loop:
•. The.current.loop.itself.is.very.resistant.to.electrical.
noise.pickup.and.shielded.cable.is.seldom.needed.
except. in. very. "noisy". (electrical). locations. and/or.
when.very.long.runs.(thousands.of.feet).are.used.
Sensor.Cabling:
•. GPI.G2.Turbine.Sensors.are.sold.as.part.of.the.Re-
mote.Transmitter.and.come.with.20.ft..of.shielded.
cable..(IM.Series.have.10.ft.)
•. If.you.require.a.longer.cable,.a.100.ft..cable.kit.is.
available.from.GPI,.or.use.Belden.9363.cable..When.
wiring.longer.lengths.of.cable,.be.sure.to.connect.the.
shield.to.transmitter.LOCAL-COM.ONLY!..(Multiple.
shield. connections. may. cause. ground-loop. prob-
lems).
•. Some.trial.and.error.may.be.needed.because.of.the.
wide. variety. of. user. conditions..Try. to. keep. cable.
lengths.short!
WIRING
If. you. ordered. your. 4-20. mA. Transmitter. to. use. with.
a.GPI.G2.Industrial.Meter,.the.transmitter.comes.with.
20.ft..of.cable.to.connect.to.the.meter..The.customer.
must. supply. the. communication. loop. cable..Although.
the.transmitter.is.usually.powered.through.the.commu-
nication.loop,.there.are.some.circumstances.that.might.
require.external.power..(IM.Series.have.10.ft.)

Connecting the Equipment:

•. Remove.the.faceplate.by.removing.the.four.corner.
screws.
•. Attach.wiring.from.your.equipment.according.to.the.
following.terminal.connections.and.wiring.diagrams,.
depending.on.your.circumstances.