Milwaukee CALIBRATION 2238-20, CALIBRATION 2239-20 Service Manual

MILWAUKEE ELECTRIC TOOL CORPORATION – TEST & MEASUREMENT PRODUCT

REPAIR SERVICE INSTRUCTIONS — CALIBRATION
2238-20 Clamp Meter for HVAC/R

2239-20 Clamp Meter

Environmental
Condition

Perform all calibration at an ambient temperature of 23°C ± 2°C / 73.4°F ± 3.6°F and relative
humidity of 80% - allow the fork meter to sit at this temperature for a minimum of 30
minutes before proceeding.

REPAIR SERVICE

INSTRUCTIONS

Calibration

MILWAUKEE ELECTRIC TOOL CORPORATION

13135 WEST LISBON ROAD ● BROOKFIELD, WISCONSIN 53005-2550 ● USA

58-92-2238d1 04/2010

STNETNOC FO ELBAT Page

Introduction 1

Precautions and Safety Information 1

Symbols 1

Safety 2

Specifications 3

General Specifications 3

Functional Description 3

Voltage Specifications 4

Current Specifications 4

Resistance Specifications 4

Continuity Specifications 4

Capacitance Specifications 4

Temperature Specifications 5

Hertz Specification 5

Physical and Environment Characteristics 6

Certification and Compliance 6

Basic Maintenance 6

Inserting and Removing the Battery 6

Maintenance - continued 7

Performance Tests 7

Testing the Display 7

Calibration Procedure: 2238-20 8

Calibration Procedure: 2238-20 - continued 9

Calibration Procedure: 2239-20 10

Calibration Procedure: 2239-20 - continued 11

i

Introduction

WARNING

To avoid shock or injury, do not perform the verification tests or calibration procedures

described in the manual unless you are qualified to do so.

The information provided in this document is for the use of qualified personnel only.

CAUTION

The 2238-20 and 2239-20 contain parts that can be damaged by static discharge.

Follow the standard practices for handling static sensitive devices.

Precautions and Safety Information

Use the Meter only as described in the Operator’s Manual. If you do not do so, the protection provided

by the Meter may be impaired. Read the “Safety Information” page before servicing this product.

In this manual, a WARNING identifies conditions and actions that pose hazard (s) to the user; a

CAUTION identifies conditions and actions that may damage the Meter or the test instru

The Symbols

The symbols used on the Meter and in this manual are explained in Table 1.

ments.

Table A. The Symbols

Risk of electric shock

See instruction card

DC measurement

Equipment protected by double or
reinforced insulation

++

Battery

Earth

AC measurement

Resistance

DC Current

A

Capacitance

Continuity

Temperature

Application around and removal from hazardous
live conductors is permitted.

US

C

Conforms to EU directives

Underwriters Laboratories, Inc.
United States and Canada

Do not discard this product or throw away.

1

SAFETY

Review the following safety precautions to avoid injury and prevent damage to this product or

products connected to it. To avoid potential hazards, use the product only as specified.

WARNING: These statements identify conditions or practices that could result in personal

injury or loss of life.

CAUTION: These statements identify conditions or practices that could result in damage to

the equipment or other property.

Specific precautions

To reduce the risk of injury, user must read and understand operator’s manual.

Do not operate without covers. To avoid personal injury, do not apply any voltage or current to

the product without covers in place.

Electric overload. Never apply a voltage to a connector on the product that is outside the range

specified for that connector.

Avoid electric shock. To avoid injury o

leads from the meter while they are connected to a voltage source.

Do not operate in wet/damp conditions. To avoid electric shock, do not operate this product in

wet or damp conditions.

r loss of life, do not connect or disconnect probes or test

2