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EBARA EV-S20 - User Manual

EBARA EV-S20
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Doc.No.EVS_CSN_2_E_Rev.3
INSTRUCTION MANUAL
MULTI-STAGE DRY VACUUM PUMP
MODEL
EV-S20
MODEL
EV-S50
MODEL
EV-S100
MODEL
EV-S200
CE / SEMI / NRTL MODEL
200-220V(50/60Hz)
Caution:
Please read and understand this INSTRUCTION MANUAL
thoroughly before using this equipment.
Be sure to keep this INSTRUCION MANUAL on hand for future
reference.
T
o Facility and Tool Manufactures:
Be sure to distribute this INSTRUCTION MANUAL to all end-user
personnel actually operation this equipment.
Model ООО
in this INSTRUCTION MANUAL is our model code.
ISSUED BY PRECISION MACHINERY COMPANY
PM40U
EBARA
CORPORATION

Table of Contents

Questions and Answers

  • R
    Robert JacksonAug 30, 2025
    What does 'WARN: CASING TEMP HIGH' mean on my EBARA EV-S20 Water Pump?
    • N
      Nicholas ClaytonAug 31, 2025
      If your EBARA Water Pump displays 'WARN: CASING TEMP HIGH', it could be due to a rise in pump back pressure, an increase in the gas load, accumulation of by-product, or reduced cooling water flow. Check the exhaust pipe, reduce the inflow gas amount, replace or overhaul the pump, or increase cooling water flow.
  • M
    Mary PollardAug 29, 2025
    Why does nothing appear on the LCD of my EBARA EV-S20?
    • L
      Lisa SmithAug 29, 2025
      If the LCD on your EBARA Water Pump shows nothing, it could be due to several reasons. First, check the power supply to ensure the pump is receiving power. Next, verify that the connector is properly connected. Also, make sure the CP is turned ON. Check the LCD’s connector to ensure that it is connected. If none of these steps resolve the issue, the instrument may have failed and need replacement.
  • J
    Joseph Mccall DDSAug 28, 2025
    What causes 'ALARM: CASING TEMP H.HIGH' on my EBARA EV-S20 Water Pump?
    • F
      Francisco FoxAug 28, 2025
      If your EBARA Water Pump displays 'ALARM: CASING TEMP H.HIGH', the pump back pressure may be rising, there may be an increase in the gas load, cooling water flow may be reduced, or there may be an accumulation of by-products. Check the exhaust pipe, reduce the inflow gas amount, cool the pump thoroughly and reset it, or replace or overhaul the pump.
  • K
    Kevin ThomasAug 27, 2025
    What does 'WARN: WATER FLOW LOW' mean on my EBARA EV-S20 Water Pump and how do I fix it?
    • R
      Rickey NewtonAug 27, 2025
      If the EBARA Water Pump displays 'WARN: WATER FLOW LOW', it could be due to several reasons: * Coupler is disconnected, so connect it. * Pressure is insufficient, so apply sufficient pressure. * Root valve is closed, so open the valve. * Water pipe is clogged, so clean or replace the piping. * Tube fittings are loosened, so re-tighten them. * Instrument failure, so replace the instrument. * Outlet & inlet pipes are reversed, so connect the pipes correctly.
  • C
    Charles OrtegaAug 26, 2025
    Why is my EBARA Water Pump making abnormal noises and vibrating excessively?
    • J
      Juan SmithAug 27, 2025
      If your EBARA Water Pump is experiencing abnormal noise and excessive vibration, here are a few possible causes: * The adjustment feet may not be applied, so use them. * Some object might be making contact with the outer cover, so remove it. * The fastening screws of the outer cover may have worked themselves loose, so tighten them. * Parts of the pump may be damaged, requiring you to replace or overhaul the pump.
  • M
    Michael ReedAug 25, 2025
    What to do if EBARA EV-S20 Water Pump shows ALARM: WATER FLOW LOW?
    • T
      Tyler HamptonAug 26, 2025
      If the EBARA Water Pump displays 'ALARM: WATER FLOW LOW', several issues could be the cause. It might be that the coupler is disconnected, the pressure isn't sufficient, the root valve is closed, the water pipe is clogged, tube fittings are loosened, there's an instrument failure, or the outlet and inlet pipes are reversed. To resolve this: * Connect the coupler if disconnected. * Apply sufficient pressure. * Open the valve if it's closed. * Clean or replace the piping if clogged. * Re-tighten any loose tube fittings. * Replace the instrument if there is an instrument failure. * Connect pipes correctly if they are reversed.
  • M
    Mitchell PachecoAug 25, 2025
    Why is the circuit protector activated on my EBARA EV-S20?
    • J
      john68Aug 25, 2025
      If the circuit protector is activated on your EBARA Water Pump, it could be due to incorrect wiring or a short circuit. Check the wiring first. If that's not the problem, the pump may have a short circuit, requiring replacement or overhaul.

Summary

Safety Information

Hazard Level Definitions

Definitions of DANGER, WARNING, and CAUTION levels used in the manual.

Important Prior Warnings

Electrical and Material Safety

Safety guidelines for electrical work and handling hazardous materials.

Safety Interlocks

Product Description

Residual Energy and Power Shutoff

Electrical Power Lockout;Tagout

Procedures for safely disconnecting electrical power before maintenance.

Detailed Specifications

Performance Curves

Installation Guidelines

Location, Mounting, and Leveling

Site selection, mounting, and leveling procedures for pump installation.

Piping Connections

Electrical Wiring Safety

Setting Operational Modes

DIP Switch Configuration

Disconnection and Transportation

Troubleshooting Overview

General Warnings and Basic Issues

Precautionary advice before troubleshooting and common basic problems.

Troubleshooting Warnings

Troubleshooting Alarms

EBARA EV-S20 Specifications

General IconGeneral
ModelEV-S20
CategoryWater Pump
ApplicationIndustrial
Power0.75 kW
Voltage220-240 V
Frequency50 Hz / 60 Hz (depending on the model)
MaterialStainless Steel

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