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Oval FLOWPET-EG LS4976-4 0A Series - User Manual

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Ins. No. S
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178
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10
S
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178
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10
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E
電子式計数部付
ELECTRONICS REGISTER PROVIDED
ーペ
-EG
FLOWPET
-EG
Water service
MODELLS5277-4 0B, LS5377-4 0B, LS5577-40B, LS5677-40B
Oil service
MODELLS4976-4
0 , LS5076-4
0 , LS5276-4
0 , LS5376-4
0 , LS5576-4
0 , LS5676-4
0
水 用
油 用
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
A
B

Table of Contents

Questions and Answers

  • M
    Megan MitchellAug 10, 2025
    Why does the LCD on my Oval FLOWPET-EG LS4976-4 0A Measuring Instruments show a steady-ON symbol?
    • X
      xevansAug 10, 2025
      If the Oval Measuring Instruments show a steady-ON “ ” on the LCD, it means the battery voltage has dropped. Replace the flowmeter, the counter unit or battery unit within a week.
  • J
    Jessica BellAug 19, 2025
    What to do if fluid will not flow through my Oval FLOWPET-EG LS4976-4 0A?
    • E
      Erica DukeAug 19, 2025
      If fluid won't flow through your Oval Measuring Instruments, several issues could be the cause. First, check if the pipes were connected without removing the protective covers over the inlet and outlet of flanges of the meter; if so, remove the meter and take off the covers. Second, scales may have jammed the oval rotors, preventing rotation; in this case, separate the register, disassemble, and clean the meter body. Finally, low pump or head pressure could be the issue; consider the pressure loss of the entire piping system and choose a more suitable pump for your application.
  • T
    Tony CarterAug 30, 2025
    How to fix liquid leaks in my Oval FLOWPET-EG LS4976-4 0A Measuring Instruments?
    • E
      Emily MorrisAug 30, 2025
      If your Oval Measuring Instruments are leaking liquid, it could be due to improper sealing. Try retightening the pipe connections. Another possible reason is that the rotors are installed backward. To fix this, disassemble the meter body and reinstall the rotors so that the magnets on the rotor will face the meter body cover.

Summary

Handling Precautions

Confirming the Nameplate

Instructions for verifying product identification and specifications on the nameplate.

Transportation Precautions

Guidelines for safely transporting the flowmeter to prevent damage.

Installation Location Precautions

Critical considerations for selecting an appropriate installation site to ensure performance.

Piping

Piping Precautions

Essential guidelines for proper and safe piping installation of the flowmeter.

Flushing the Piping Assembly

Procedure for cleaning the piping system before meter installation.

Example of Incorrect Piping

Shows common installation errors to avoid for correct operation.

How to Prevent Inductive Interferences

Methods to mitigate electromagnetic interference affecting the meter.

Wiring

Field Wiring

Guidelines for selecting and installing field wiring cables.

Hook-up Diagrams

Provides circuit diagrams for connecting the flowmeter's outputs.

Display and Controls

Operation

Operation Precautions

Crucial safety and operational advice before starting the meter.

Troubleshooting

About Error Messages

Lists error codes, their meanings, and recommended solutions.

Disassembly and Inspection

Meter Body Disassembly and Inspection

Step-by-step guide for disassembling and inspecting the meter body.

Battery Replacement and Meter Factor Setting Procedure

Battery Replacement

Details the process and precautions for replacing the internal battery.

Parameter Setting and Configuration

Covers procedures for setting, inputting, and understanding meter parameters.

General Specifications

Flow Range

Specifies the operational flow rate limits for different fluids and sizes.

Oval FLOWPET-EG LS4976-4 0A Series Specifications

General IconGeneral
Operating Temperature-10 to 60°C
DisplayLCD
Pipe Diameter Range15 mm to 400 mm
Flow Velocity Range0 to 10 m/s
Ambient Temperature-10 to 55°C
Outputs4-20 mA, Pulse
CommunicationModbus RTU
Power Supply24 V DC

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