GPI GBM 110, GBM 220 Installation & Operating Instruction

TABLE OF CONTENTS

SPECIFICATIONS ......................................................................................1

MOUNTING ................................................................................................3

WIRING .....................................................................................................4

THEORY OF OPERATION .........................................................................6

MILIVOLT INPUT OPTION JUMPER SELECTIONS ..................................7

FRONT PANEL OPERATIONS ...................................................................8

PROGRAMMING FLOW CHART ...............................................................8

DEFINITIONS OF MENU PROMPTS .........................................................9

CALCULATING SCALE FACTORS ............................................................11

PROGRAMMING ........................................................................................ 12

TROUBLESHOOTING GUIDE ................................................................... 17

WARRANTY

DECODING PART NUMBER

3.622
(92)

1.772
(45)

4.437

(112.7)

2.625

(66.68)

0.587

(14.91)

4.245

(107.8)

BEZEL

GASKET

CUSTOMER PANEL
Panel Thickness 0.062" (1.5)
to 0.187" (4.7) max.

3.925
(99.7)

Dimensions:

Flowmeter Solenoid Valve

STOP

RST

ENTER

LOCK

PRE A

PROG

VIEW

START

A

B

C

D

E

SPECIFICATIONS

(continued)

Panel

Cutout

Application

2

3.622
(92)

1.772
(45)

4.437

(112.7)

2.625

(66.68)

0.587

(14.91)

4.245

(107.8)

BEZEL

GASKET

CUSTOMER PANEL
Panel Thickness 0.062" (1.5)
to 0.187" (4.7) max.

3.925
(99.7)

MOUNTING

FIG. A

The unit is designed to be mounted with a gasket providing a water tight seal. Two mounting brackets are provided to secure
the unit to the panel. A panel less than .1" may distort if the clamps are screwed too tightly.

Slide the body of the unit through the rubber gasket. Insert the unit into the panel. As shown in "FIG. A", slide the brackets
up the groove to press against the back of the panel. Insert screws into rear of brackets and tighten them evenly and alter­nately. Do not over tighten! A normal level of torque is required. Maximum torque should be 3" pounds.

This product is designed to be panel mounted and is NEMA 4 rated if proper mounting procedures are followed and the
required and supplied hardware is correctly used.

If the panel in which the unit is mounted is less than .125 of an inch thick, the possibility exists that there will be some flex­ing. Should this flexing occur, the resulting deformation of the panel could cause a loss of the water tight seal. In case this
should occur, the use of silicone or other sealant would be recommended.

This product is designed to the NEMA 4 standard. However, the fact that we are unable to control either the location in which
the device is installed or the actual installation itself requires that the company's liability shall extend only to the repair or
replacement of a defective product.

We are prepared to offer additional assistance in those special situations where normal mounting methods do not seem
to satisfy the customers needs. This assistance may be obtained by calling the factory and asking for Industrial Customer
Service.

FIG. A

DIMENSIONS

3

Panel

Cutout

WIRING

Supply Line Suppression

ELECTRONIC
INSTRUMENT

MOV

CAP

AC

SUPPLY

OPT.

RFI

LINE

FILTER

SUPPRESSION

AT AC INPUT

Relay Contact Suppression

DC

SUPPLY

ELECTRONIC

INSTRUMENT

RELAY

CONTACT

+

-

DIODE

LOAD

DC Load

ELECTRONIC
INSTRUMENT

RELAY

CONTACT

MOV

LOAD

CAP

AC

SUPPLY

AC Load

The rear terminal contains 12 screw terminals for connecting #14 to #28 gauge wire.

The unit is controlled by a microprocessor and, therefore, an electrically "noisy" environment could cause operating problems.
The input power line should not be common to power lines for motors, pumps, contactors, etc.

The unit is designed to be immune from line or RF voltage interference. In some environments voltage spikes of over 100
volts, even 1000 volts, can occur. When common to a power line driving motors voltage fluctuations can be extreme and
rapid. Lines driving DC or AC solenoids, relays, or actuators can also cause problems.

Four sources of noise can occur:

1) AC power line noise - If the unit cannot be connected to a clean power source, an inductive load suppressing device
(MOV as GE # V130LA1 or Resistor Capacitor as Paktron # .2 uf/220 ohm @ 400V) can be installed. Although
locating the suppressor across the AC supply at the unit should help, best results are obtained by connecting the
suppressor across the leads of the "load" at the device causing the spike.

2) Input line noise -The noise is carried on the input and D.C. ground lines. Make sure the input wires are never run into
the unit in a bundle with power input lines. Also, keep these input lines isolated from inductive lines from devices
drawing heavy loads. If there is a possibility of electrical noise, we recommend using shielded cable, with the shield
being hooked to the D.C. ground terminal on the instrument, and to "earth" at one point in the circuit, preferably at the
D.C. ground terminal of the unit.

3) Output lines - The unit has two relay outputs. When these outputs are used to run external relays or solenoids, spikes
can be generated upon activation. This noise can spread through the instrument causing operating problems. If the
source is a D.C. operated device, a general purpose diode (IN4004) placed across the solenoid prevents electrical
noise spikes. Connect the cathode (banded side) to the more positive side of the coil. If the source is an A.C.
operated device, use a MOV or Resistor Capacitor across the coil.

4) 12 VDC output supply - Noise can be generated on the 12 VDC output supply if it is used to drive inductive loads or if
the current draw exceeds 50 mA. Insure that all inductive loads have a diode (such as IN4004) across the coil and
that the current does not exceed 50 mA.

4

WIRING

1- COMMON

2- N.O.(N.C./NPN)

3- COMMON

4- N.O.(N.C./NPN)

5- COUNT

6- START

7- 12VDC OUT/+DC IN

8- -DC (GROUND)

9- STOP/RESET

10- NOT USED

11- A.C. INPUT

12- A.C. INPUT

RELAYS

A

B

REAR VIEW

1 2 3 4 5 6 7 8 9 10 11 12

1- COMMON

2- N.O.(N.C./NPN)

3- COMMON

4- N.O.(N.C./NPN)

5- COUNT

6- START

7- +12VDC OUT/+DC IN

8- -DC (GROUND)

9- STOP/RESET

10- NOT USED

11- A.C. INPUT

12- A.C. INPUT

RELAYS

A

B

High level voltage pulse

+
–

Turbine Flowmeter

(preamplifier fitted)

AC

Power

115 VA C
SOLENOID
VA L VE

MOV
recommended

115 VA C

AC

Power

1- COMMON

2- N.O.(N.C./NPN)

3- COMMON

4- N.O.(N.C./NPN)

5- COUNT

6- START

7- +12VDC OUT/+DC IN

8- -DC (GROUND)

9- STOP/RESET

10- NOT USED

11- A.C. INPUT

12- A.C. INPUT

RELAYS

A

B

Low level mV pulse

–

Turbine Flowmeter

(without preamplifier)

115 VA C
SOLENOID
VA LV E

MOV
recommended

115 VA C

(continued)

AC / DC Power Connections

NOTE: Connect power only after other connections are finished. Do not touch the live AC power terminals! The unit has been de­signed with an isolated AC input. Thus, polarity is not a concern for the AC input. Connect AC power to pins 11 and 12. The chassis is
plastic, therefore earth ground is not used. For D.C. operation, connect + 12V to pin 7 and - D.C. to pin 8.

Sensor Connections

These diagrams show how to hook typical input sensors to the unit. The unit supplies an unregulated 12 Volt (50mA) output to power
these sensors (Pin 7).

A valid pulse is one which makes a transition from the off-state (0 to 1V) to the on-state (4 to 30V): a positive going edge. The input
impedance is 10K Ohms to ground. The unit can be programmed from the front panel for slow switch closure inputs up to 40Hz (select
"Lo CPS"), or solid state switches (select "hi CPS") up to 9.99KHz. No rear terminal jumpers are required. Use PNP (sourcing) type
pulsers.

Wiring Terminations:

Typical Flowmeter Connections

Magnetic Pickup (30 mV) Pulse Input High Impedance (4-30VDC) Pulse Input with Analog Output

5