Milwaukee 2236-20, 2237-20 Service Instructions

MILWAUKEE ELECTRIC TOOL CORPORATION – TEST & MEASUREMENT PRODUCT

REPAIR SERVICE INSTRUCTIONS — CALIBRATION
2236-20 Clamp Meter for HVAC/R

2237-20 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

58-92-2236d2 06/2012

STNETNOC FO ELBAT Page

Introduction 1
Precautions and Safety Information 1
Symbols 1
Safety 2
Specifications 3
General Specifications 3
Voltage Specifications 4
Current Specifications 4
Resistance Specifications 4
Continuity Specifications 4
Capacitance Specifications 4
Temperature Specifications 5
Physical and Environment Characteristics 6
Certification and Compliance 6
Basic Maintenance 6
Opening the Meter Case 6
Replacing the Battery 6
Performance Tests 7
Testing the Display 7
Component Layout and Spare Parts List 8
Disassembly 9
Removal of Battery Cover 9
Removal of Panel 9
Removal of PCB 9
Removal of Jaws 9
Adjustment Procedures 9
Required Equipment and Tools 9
Current Value for Adjustment 10
Check for Low Battery warning 10
DC Voltage Adjustment 10
AC Voltage Adjustment 10
AC Current Adjustment 11
Jaw Balance Adjustment 11
Off-Set adjustment for DC Current (2237-20) 11
Check for Accuracy at 600A Function 11
DC uA Adjustment (2236-20) 11
Electric Capacity Function 11
Temperature Measurement Function (2236-20) 12
Operation Check 12
Resistance Function 12
Continuity Function 12
Frequency Function (2237-20) 12
Current Function 13
DC Current Function (2237-20) 13
DC uA Function (2236-20) 13
Trouble Shooting 13
Trouble Shooting - continued 14

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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 2236-20 and 2237-20 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

Conforms to EU directives

Application around and removal from hazardous

live conductors is permitted.

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

SPECIFICATIONS

All specifications are warranted unless noted typical and apply to the 2236-20 and 2237-20.

Stated accuracies are at 23°C±5°C at than 80% relative humidity and without the battery

indicator displayed.

General specifications

noitpircseD scitsiretcarahC

stnuoc 0006 tnuoc yalpsiD

ces / semit 3 etar etadpu ciremuN

citamotuA yalpsid ytiraloP

Overrange display

Low voltage indicator is indicated

Display "OL" when the reading exceeds

range by 10%

++

setunim 02 emit ffo-rewop citamotuA

ezis AA ro 6RL CEI 2 * V5.1 ecruos rewoP

Maximum input voltage

600V CAT lll between V and COM

600V CAT lll between any terminal and earth

Maximum floating voltage

ground

V connector V , V , , ,

C°82> ro C°81< ,C° / )ycaruccA .cepS(×1.0 tneiciffeoC erutarepmeT

)enilaklA( lacipyt sruoh 30 efiL yrettaB

3