Safety Instructions - GPI GM Serie Guía De Operación

The GPI 4-20 mA Out with Display is a flow totalizer
and rate meter with industry standard current loop out-
put. The unit is loop powered, and provides a 4-20 mA
analog output proportional to the frequency signal for
communication with PLCs and other customer equip-
ment. The 4-20 mA (or 0-20 mA) output is calibrated
under actual flow conditions with simple push-button
calibration. Auxiliary output includes 0-5 VDC.
The microprocessor-based electronics have extremely low
power requirements and are completely powered by the
4-20 loop. The electronics provides the options of local
(on the meter) and/or remote (up to 5,000 feet) display.
Flow total and rate are displayed on a large 6-digit LCD
readout with two-point floating decimal for totals from
.01 to 999,999. All operations are easily accessed with
the push buttons on the display front panel.
CAUTION
This unit is not FM Approved. Therefore, use of
this transmitter with an approved metering system
voids FM Approval.
NOTE: This unit is loop powered, requiring an input
power supply of 8.5 to 35 volts (24 VDC is recom-
mended).
NOTE: Setpoint calibration of the unit 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.
2
The following installation guidelines are separated by
meter series and mounting type.
Precision G Series:
• Local – The GX510 4-20 mA Out with Display
mounts directly to the 1-inch MNPT conduit connec-
tor.
• Remote – The GX500 4-20 mA Out with Display
connects via an output cable as shown in the Wiring
Diagram.
Industrial Grade G2 Series:
• Local – The GX510 4-20 mA Out with Display
requires the GPI Conduit Connector Kit (Part
#113437-01) for local mounting to the G2 series
meter.
• Remote – The GX500 4-20 mA Out with Display
connects via an output cable as shown in the Wiring
Diagram.
Commercial Grade A1 Series:
• Local – The GX510 4-20 mA Out with Display
requires the GPI Conduit Connector Kit (Part
#113437-01) for local mounting to the A1 series
meter.
• Remote – The GX500 4-20 mA Out with Display
connects via an output cable as shown in the Wiring
Diagram.
GM Oval Gear Series:
• Local – The 4-20 mA Out with Display is mounted
directly to the oval gear meter housing.
• Remote – The GX500 4-20 mA Out with Display
connects via an output cable as shown in the Wiring
Diagram.
Mount the GPI 4-20 mA Out with Display using bolts,
screws or standard U-bolts for pipes. Mounting options
include:
• Wall
• Pipe
• Meter (1-inch FNPT conduit connection required)
Environmental
Choose a mounting location suitable for the 4-20 mA Out
with Display. The ideal mounting location is where the:
• flowmeter is as close as possible.
• mounting surface has minimal vibration.
• ambient temperature is +32° F to +140° F (0° C to
+60° C).
• cable lengths are minimal.
Avoid mounting locations where the 4-20 mA Out with
Display 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).