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GPI MR 5-30 Series - User Manual

GPI MR 5-30 Series
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General Information .................... 2
Installation ..................................3
Operation .................................... 3
Calibration ..................................4
Maintenance ...............................5
Troubleshooting ..........................6
Specications .............................7
Illustrated Parts List ....................8
TABLE OF CONTENTS
SAVE THESE INSTRUCTIONS
MR 5-30 or MR 5-30N Series
Fuel Meter
Owner’s Manual
To the owner…
Congratulations on receiving your GPI
MR 5-30 Meter. We are pleased to provide
you with a meter designed to give you
maximum reliability and efciency.
Our business is the design, manufacture and
marketing of liquid handling, agricultural and
recreational products. We succeed because
we provide customers with innovative,
reliable, safe, timely and competitively-
priced products. We pride ourselves in
conducting our business with integrity and
professionalism.
We are proud to provide you with a quality
product and the support you need to obtain
years of safe, dependable service.
Great Plains Industries, Inc. is a member
of the Petroleum Equipment Institute.
Victor Lukic, President
Great Plains Industries, Inc

Table of Contents

Questions and Answers

  • C
    Colton JordanAug 3, 2025
    Why is my GPI Measuring Instruments leaking fuel?
    • E
      Elizabeth DavisAug 3, 2025
      Fuel leakage in your GPI Measuring Instruments can occur due to several reasons: * Leakage at the counter drive shaft: Replace the cover plate assembly. * Leakage between the cover plate and housing: Remove the cover plate and check for damaged, missing, or incorrectly seated seals. Replace if needed. * Leakage at fittings: Remove the fittings and inspect for damaged, missing, or incorrectly seated seals. Replace as necessary. * Leakage at threads: Remove the meter and reseal all threaded connections using thread tape or a pipe thread sealing compound approved for use with flammable liquids.
  • D
    Dana GarciaAug 12, 2025
    What to do if the meter counter of my GPI Measuring Instruments does not operate with normal fuel delivery?
    • J
      Jorge PittmanAug 12, 2025
      If the meter counter on your GPI Measuring Instruments isn't working during normal fuel delivery, here are a few potential causes and solutions: 1. **Broken counter assembly**: Replace the counter. 2. **Foreign material**: Remove and clean the counter assembly or nutator assembly. 3. **Broken nutator disc pin or defective nutator assembly**: Install a new nutator assembly. 4. **Missing or worn bevel gear**: Replace the bevel gear.
  • Y
    Yvonne EllisAug 21, 2025
    How to fix a meter counter that doesn't operate with little fuel flow in GPI Measuring Instruments?
    • A
      Alexander WilliamsAug 21, 2025
      If your GPI Measuring Instruments meter counter isn't working when there's little to no fuel flow, consider the following: * **Clogged strainer**: Clean or replace the strainer. * **Malfunctioning system components**: Check all system components from the tank to the nozzle for clogs or malfunctions, and repair as needed. * **Foreign material in nutator assembly**: Remove and clean the nutator assembly.

Summary

General Information and Safety

Safety Instructions

Explains safety alert symbols (DANGER, WARNING, CAUTION) and user responsibilities for safe operation.

Meter Purpose and Design

Details the meter's design for field measurement of thin viscosity petroleum fuels and its operational range.

Installation Procedures

Rotate Fittings

Instructions for rotating inlet and/or outlet fittings to the desired orientation.

Change Orientation

Steps to change the orientation of the meter's faceplate and bezel.

Meter Installation Procedure

Procedure for installing the meter onto a pump system, including port preparation and connections.

Operation and Calibration

Operation Details

Describes batch total display, cumulative total, and general operational precautions.

Purge Air and Reset Counter

Steps to purge air from the system and reset the meter's batch total counter to zero.

Calibrate Meter Display

Procedure for adjusting the meter's calibration using a calibration screw based on measured quantity.

Maintenance and Troubleshooting

Clean or Replace Strainer

Instructions for cleaning or replacing the meter's internal strainer.

Troubleshooting Guide

Lists common symptoms, probable causes, and corrective actions for meter issues.

Specifications and Parts List

Technical Specifications

Provides detailed specifications for Gallon and Litre models, including flow range, accuracy, and dimensions.

Illustrated Parts List

Lists and illustrates available kits and accessories for the fuel meter with part numbers.

GPI MR 5-30 Series Specifications

General IconGeneral
Accuracy± 0.5% of reading
Materials of ConstructionStainless steel
Connection Size1/2" NPT
DisplayLCD
Power SupplyBattery
Fluid CompatibilityOil, Water, Chemical
Operating Temperature-40°F to +250°F (-40°C to +121°C)

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