Milwaukee CALIBRATION 2238-20 Mode d'emploi

MILWAUKEE ELECTRIC TOOL CORPORATION – TEST & MEASUREMENT PRODUCT

REPAIR SERVICE INSTRUCTIONS — CALIBRATION

2238-20 Clamp Meter for HVAC/R

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

2239-20 Clamp Meter

STNETNOCFOELBAT 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

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 instruments.

The Symbols

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

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

Capacitance

Continuity

Temperature

Application around and removal from hazardous

live conductors is permitted.

Conforms to EU directives

Underwriters Laboratories, Inc.

United States and Canada

Do not discard this product or throw away.

CUS

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.

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

the equipment or other property.

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

injury or loss of life.

Specific precautions

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

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.

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

SPECIFICATIONS

All specifications are warranted unless noted typical and apply to the 2238-20 and 2239-20.

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

indicator displayed.

General specifications

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Overrange display Display "OL" when the reading exceeds

range by 10%

Low voltage indicator is indicated

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12 V Lithium-Ion Milwaukee Battery Pack

49-11-2401, 49-11-2402

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Maximum input voltage 1000V CAT lll between IV and COM

Maximum floating voltage 1000V CAT lll between any terminal and earth

ground

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Greater than 12 hours with all functionsy Run TimerettaB

1. Current sensing jaws

2. NCVD sensing area

3. NCVD indicator

4. °F/°C button (2238-20)

Zero button (2239-20)

5. Inrush button (2239-20)

Cat. No.

2238-20

Cat. No.

2239-20

6. Rotary Dial

7. Display

8. Hold button

9. Min/Max button

10. Worklight LED

11.Jaw opening trigger

12. Terminal inputs

FUNCTIONAL DESCRIPTION

Measurement Specifications

Accuracy is ±(% reading + number of digits) at 23°C ± 5°C, less than 80% R.H.

Temperature coefficient: 0.1 * (Specified accuracy)/°C, <18°C, >28°C

(1) DC Voltage

Range Resolution Accuracy

600V 0.1V

1000V 1V

±(2% reading + 2 digits)

(2) AC Voltage

Range Resolution Accuracy (Sine Wave)

600V 0.1V

1000V 1V

±(1.2% reading + 5 digits) (50/60 Hz)

(3) DC μA (2238-20 only)

600.0μA 0.1μA ±(1.5% reading + 5 digits)

±(1.8% reading + 5 digits)

(45~500 Hz)

(4) AC Current

Range Resolution Accuracy

(5) Resistance

Range Resolution Accuracy

600 Ω/6k Ω/60 kΩ/600 kΩ

0.1 Ω/1 Ω/10 Ω/0.1 kΩ

(6) Continuity

Range Resolution Accuracy

Continuity Buzzer

600.0Ω

2238-20:

60/600A 0.01/0.1A ±1.9% rdg ± 5dgt (50/60Hz)

±3.0% rdg ± 5dgt (45-500Hz)

2239-20: * Add 2% at CF>2

60/600/1000A 0.01/0.1/1A

±1.0% rdg ± 2dgt

Buzzer sounds at 30Ω or less

(7) Capacitance

0.1μF/1μF

Range Resolution Accuracy

±2.5% ±20dgt

up to 60

μF

400μF / 4000μF

Range Resolution Accuracy

0.1Ω

(8) Temperature (2238-20)

(9) Hertz (2239-20)

-40ºC ~ 538ºC

-40ºF ~ 1000ºF

(10) Volt Sense

Volt Sense Light should be on at 90V @ 1 inch (2.54 cm).

(11) Thermocouple

K Type Class II Thermocouple with standard dual banana jack.

Measurement Range: -40.0°C ~ 260.0°C (-40.0°F ~ 500.0°F)

Accuracy: ±2.5°C

(12) Over-range Indication

Display “OL” when the reading exceeds the measuring range.

(13) Rotary Switch

In order to prevent a “0” reading, the contacts about the input signal must be made properly

before the contact of the function selection.

(14) Auto Power Off

Meter automatically turns power off after powering up and no operation for 20 ±5 minutes.

Press any key or rotate the rotary to power up.

Range Resolution Accuracy

0.1°C

0.1ºF

±1% ±10dgt

±1% ±18dgt

(15) Battery: Milwaukee 12 V Lithium-Ion Battery Pack: 49-11-2401, 49-11-2402

(16) Battery life:

Approx. 12 hours with all functions

(17) Overvoltage Category

IEC/EN 61010-1 2nd edition for measurement CAT lll, 1000V; CAT lV, 600V

(18) Operating Temperature

-10°C to 50ºC (14ºF to 122ºF)

(19) Storage Temperature

-40°C to 60ºC (-40º to 140ºF) (No batteries)

ACA: 600 Hz, 6 kHz

ACV: 600 Hz, 6 kHz, 60 kHz

Range Resolution Accuracy

±1%rdg ±1dgt

Sensitivity: Amps 5A RMS;

Volts - 30V RMS

Minimum Hz measurement is 10Hz

0.1 Hz, 1 Hz, 10 Hz

Physical and Environmental Characteristics

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Vibration & shock Operating MIL-PRF-28800F for Class 2 Instrument

Indoor Use

Certifications and compliances

SafetyDesigned to IEC61010-1, UL61010-1 and CSA specifications

Category Ill 1000V.

Input rating

CAT IV : The source of the Low-Voltage installation.

CAT III : Distribution level mains, fixed installation.

CAT II : Local level mains, appliances, portable equipment

Over voltage category

CAT I : Signal level, special equipment or parts of equipment,

telecommunication, electronics.

Pollution Degree 2 Do not operate in environments where conductive

Pollutants may be present.

Basic Maintenance

WARNING

To avoid shock, disconnect test leads from any voltage source than remove from meter before

opening the case or replacing the battery.

Inserting/Removing the Battery

To remove the battery, use a flat screwdriver

to pry open the lock latch. Push in the release

buttons and pull the battery pack away from

the tool.

Lock latch

Fig. 1

To insert the battery, slide the pack into the

body of the tool. Make sure it latches securely

into place. Press in the lock latch to lock the

battery in place.

Performance Tests

The following performance tests verify the complete operability of the Meter and check the

accuracy of each Meter function against the Meter’s specifications.

Accuracy specifications are valid for a period of one year after calibration, when measured at an

operating temperature of 18°C to 28°C and a maximum of 80% relative humidity.

To perform the following tests, it is not necessary to open the case, no adjustments are necessary,

merely make the required connections, apply the designated inputs, determine if the reading on the

Meter display falls within the acceptable range indicated.

If the Meter fails any of these tests, it needs calibration adjustment or repair.

Testing the Display

Press “HOLD” key while turning the Meter on from the “OFF” position to hold the display in the

Display Test Mode. Compare the display with the example in Figure 2. Turn off the meter to

escape the test mode.

LCD Graphics 2238-20

Figure 2 Display Test

Maintenance - continued

To reduce the risk of personal injury and damage, never immerse your tool, battery pack or

charger in liquid or allow a liquid to flow inside them.

Maintaining Tool

Keep your tool, battery pack and charger in good repair by adopting a regular maintenance program.

After six months to one year, depending on use, return the tool, battery pack and charger to a

MILWAUKEE service facility for service. If the tool does not start or operate at full power with a fully

charged battery pack, clean the contacts on the battery pack. If the tool still does not work properly,

return the tool, charger and battery pack, to a MILWAUKEE service facility for repairs.

Cleaning

Clean dust and debris from charger and tool vents. Keep tool handles clean, dry and free of oil or grease.

Use only mild soap and a damp cloth to clean the tool, battery pack and charger since certain cleaning

agents and solvents are harmful to plastics and other insulated parts. Some of these include gasoline,

turpentine, lacquer thinner, paint thinner, chlorinated cleaning solvents, ammonia and household deter-

gents containing ammonia. Never use flammable or combustible solvents around tools.

WARNING

Calibration Procedures: 2238-20

Mode：M2238 True RMS Clamp Meter for HVAC/R

Environmental：Temperature 18°C ~ 28°C Humidity：<70%RH

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NOTE:

(1) Turn the unit off. Press and hold “ + ” keys and turn the function dial

to range “ ” then push “°F/°C ” button within 2 sec. The LCD will blink “ZERO”

Step Function Switch Position Input Signal Adjustment Adjust Range Note

1. DCV Adjustment 300VDC VR1 299.9~300.1V

2. ACV Zero Adjustment Open Circuit VR2 0.0~0.1V (1)

3. ACV Adjustment 300V/60Hz (sine wave) VR3 299.9~300.1V

4. DCuA Adjustment

300uADC VR4 299.9~300.1uA

5. ACA 600A Adjustment 300A/60Hz VR5 299.9~300.1A

6. ACA 60AAdjustment 30A/60Hz VR6 29.99~30.01A

7. Capacitor Adjustment 220uF Soft Key 218.0~222.0 (2)

8. Capacitor Adjustment 2200uF Soft Key 2180~2220 (3)

9. Temp. Adjustment

0mVDC Soft Key --- (4)

10. Temp. Adjustment

16.395mVDC Soft Key --- (5)

11. Temp. Adjustment

0°C Soft Key -0.1~0.1°C (6)

12.

13.

Autres manuels pour CALIBRATION 2238-20

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