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Cosmo LS-1866 User Manual

Cosmo LS-1866
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OPERATION MANUAL
AIR LEAK TESTER
MODEL LS-1866
No. LS-1866-941B1-H
1 INTRODUCTION
2 GENERAL INFORMATION
AND SPECIFICATIONS
3 LEAK TESTING OVERVIEW
4 FEATURE SUMMARIES
5 INSTALLATION
6 PARTS IDENTIFICATION
AND FUNCTIONS
7 BASIC OPERATIONS
8 COMPENSATION MODE
(MASTER-PRESET)
9 CALIBRATION (CAL) MODE
10 ORIGINAL (ORG) MODE
11 INTERFACE
12 MAINTENANCE AND
TROUBLESHOOTING
13 APPENDIX

Table of Contents

Questions and Answers:

Cosmo LS-1866 Specifications

General IconGeneral
BrandCosmo
ModelLS-1866
CategoryTest Equipment
LanguageEnglish

Summary

INTRODUCTION

Safety Hints

Instructions for safe use, avoiding injury, and property damage.

Notes

Information subject to change, reproduction policy, responsibility, and measurement principles.

GENERAL INFORMATION AND SPECIFICATIONS

General Information

LS-1866 is a differential pressure method air leak tester for industrial use.

Features

Lists key features like Master-Preset, NR mode, leak rate display, high-performance sensor.

Specifications

Details minimum reading, ranges, accuracy, power, ports, dimensions, and components.

LEAK TESTING OVERVIEW

Theory of Leak Test

Explains how pressure changes are measured to detect leaks using a differential pressure sensor.

Leak Rate Theory and Equations

Details Boyle's Law and equations for calculating leak rate from pressure changes.

FEATURE SUMMARIES

Master-Preset

Explains how Master-Preset compensates for drift errors for better detection accuracy.

Leak Calibration (Patented)

Method to obtain volumetric leak rate by measuring equivalent internal volume.

Two-Level Limit Setting and Noise Reduction (NR) Mode

Setting small and large leak limits and using NR mode for improved accuracy.

Sensor Protection

Features like air blow for cleaning and external exhaust readiness.

CAL ports

Front panel ports for daily checks and calibration using Leak Master or Leak Calibrator.

INSTALLATION

Installing the Unit

Instructions for installing the unit, including using quick mounting brackets.

Electrical Connection

How to connect power and signal cables, including safety precautions.

Pneumatic Connection

Connecting pressure sources and pilot pressure for operation.

Connecting Master and Tested part

Guidance on connecting the master and tested parts for leak testing.

Procedure for installation and adjustment

Step-by-step guide for setting up and adjusting the leak tester.

PARTS IDENTIFICATION AND FUNCTIONS

External Appearance

Identifies front and rear components of the LS-1866 leak tester.

Indicators

Explains the function of various LEDs and indicators on the leak rate indicator.

Keyboard

Details the function of each key on the leak tester's keyboard.

Leak Test Stages

Describes the operations performed during each stage of a leak test.

BASIC OPERATIONS

Turning on Power

Procedure for powering on the leak tester and its self-check.

Setting a Test Pressure

How to set the test pressure using the rear panel regulator.

Test Pressure Gauge Upper and Lower Limit Setting

Setting pressure limits to manage test pressure and trigger error signals.

Start and Stop

Procedures for starting and stopping a leak test.

Timer Settings

How to view and enter settings for various leak test timers.

Limit Setting

How to view and enter leak rate limit settings.

Charge Hold

Function to maintain pressure for leak location.

COMPENSATION MODE (MASTER-PRESET)

Sampling Master-Preset value

How to sample Master-Preset values via keyboard or external signal.

Error message during Master-Preset sampling

Common error messages during Master-Preset sampling and their causes.

CALIBRATION (CAL) MODE

Leak Calibration

Procedure to measure equivalent internal volume for leak rate unit.

DPS Offset Calibration

Procedure to calibrate the DPS offset.

DPS Span Inspection

How to inspect the DPS span using a pressure calibrator.

No-Leak Test

Test to verify if the tester itself is leaking.

ORIGINAL (ORG) MODE

Memory Switch Settings (P-2)

How to set the leak tester with memory switches for specific applications.

Noise Reduction (NR) (P-5)

How NR mode operates and how to set its parameters.

INTERFACE

Control I/O Port

Describes the control I/O port for interfacing with external devices like PLCs.

Serial Communications Interface

Details the serial interface for communication with computers.

MAINTENANCE AND TROUBLESHOOTING

Daily Items to Check and Maintain

Daily checks for oil mist separators, filters, test pressure, and parameters.

Error Messages

Lists error codes, descriptions, and treatment procedures.

Leak Test Troubleshooting

Guidance on troubleshooting consecutive No-Go judgments.

Locating Leaks in Places Other Than the Leak Tester

Methods for locating leaks in parts using soap solution or switching components.

APPENDIX

EXTERNAL APPEARANCE

Diagrams showing the external dimensions and appearance of the unit.

PNEUMATIC CIRCUIT

Pneumatic circuit diagrams for different models (low/medium and vacuum).

Pressure Unit Conversion Table

Table for converting various pressure units.

Flow Unit Conversion Table

Table for converting flow units.

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