Megger BM223 User Manual

Insulation &
Continuity Testers
MEGGER
®
BM220 Series
User Guide
Guide de l’utilisateur
Gebrauchsanleitung
Guía del Usuario
SAFETY WARNINGS
✱ Safety warnings and precautions must be read and
understood before the instrument is used. They must be
observed during use.
✱ The circuit under test must be switched off, de -
energised and isolated before Insulation or Continuity
tests are made.
✱ The test button must not be held down while connecting
the test leads or while changing ranges. (May cause
‘Live Circuit Warning‘ to become inoperable).
✱ The Voltage warning does not function if OFF or
is selected.
✱ During an insulation test, connections must not be
touched.
✱ After insulation tests, capacitive circuits must be allowed
to discharge before disconnecting the test leads.
✱ Test leads, prods and crocodile clips must be in good
order; clean, and with no broken or cracked insulation.
✱ Replacement fuses must be of the correct size, type and
rating.
NOTE
THE INSTRUMENTS MUST ONLY BE USED BY SUITABLY TRAINED AND COMPETENT
PERSONS
.
Symbols used on the instrument:
Caution: risk of electric shock
Caution: refer to accompanying notes
Equipment protected throughout by Double Insulation (Class II)
Equipment complies with relevant EU Directives

Megger BM223 Specifications

General

Continuity Test Current	200 mA
Voltage Measurement	0 V to 600 V AC/DC
Test Current (Low Resistance)	200 mA
Test Voltage	500 V
Accuracy (Low Resistance)	±(0.5% + 2 digit)
Display	LCD
Power Supply	8 x AA batteries
Operating Temperature	-10 °C to 50 °C
Storage Temperature	-20°C to +50°C

Summary

Safety Warnings

General Safety Precautions

Essential safety guidelines and precautions to follow before and during instrument use.

Instrument Safety Symbols

Explanation of safety symbols used on the instrument for user guidance.

Operation and Setup

Preliminary Test Lead Check

Procedure to inspect test leads, probes, and clips for good condition before use.

Backlight Operation

Instructions on how to turn the instrument's backlight on and off.

Continuity Testing Procedure

Step-by-step guide for performing continuity tests and understanding the beeper.

Insulation Testing

Technical Specifications

Insulation Test Specifications

Detailed technical parameters for insulation testing measurements.

Continuity Test Specifications

Detailed technical parameters for continuity testing measurements.

Environmental Conditions

Operating and storage temperature and humidity ranges for the instrument.

General Instrument Specifications

Overall performance characteristics, display, and auto shut-off features.

Accessories and Publications

Supplied and Optional Accessories

List of items included and available for separate purchase.

Available Publications

Information on other related publications or documentation.

Repair and Warranty

Instrument Service and Spare Parts

Guidance on obtaining service, spare parts, and authorized repair companies.

Returning Instrument for Repair

Procedure for sending the instrument back to the manufacturer for repair services.