Extech Instruments AM600 User manual

User's Guide

Extech AM600

600A AC Analog Clamp Meter

99 Washington Street

Melrose, MA 02176

Phone 781-665-1400

Toll Free 1-800-517-8431

Visit us at www.TestEquipmentDepot.com

Back to the Extech AM600 Product Info Page

AM600 V2.0 6/072

Introduction

Congratulations on your purchase of the Extech AM600 Analog Clamp Meter. This device

measures AC Current, AC Voltage, DC Voltage, Resistance and Temperature. This meter

is shipped fully tested and calibrated and, with proper use, will provide years of reliable

service.

Safety

International Safety Symbols

This symbol, adjacent to another symbol or terminal, indicates the user must refer

to the manual for further information.

This symbol, adjacent to a terminal, indicates that, under normal use, hazardous

voltages may be present

Double insulation (Protection Class II)

SAFETY NOTES

•Do not exceed the maximum allowable input range of any function.

•Do not apply voltage to meter when resistance function is selected.

•Remove the battery if meter is to be stored for longer than 60 days.

WARNINGS

•Set function switch to the appropriate position before measuring.

•When measuring volts do not switch to current/resistance modes.

•Do not measure current on a circuit whose voltage exceeds 600V.

•When changing ranges always disconnect the test leads from the circuit under test.

CAUTIONS

•Improper use of this meter can cause damage, shock, injury or death. Read and

understand this user manual before operating the meter.

•Always remove the test leads before replacing the battery or fuses.

•Inspect the condition of the test leads and the meter itself for any damage before

operating the meter. Repair or replace any damage before use.

•Use great care when making measurements if the voltages are greater than 25 VAC

rms or 35 VDC. These voltages are considered a shock hazard.

•Always discharge capacitors and remove power from the device under test before

performing Resistance tests.

•Voltage checks on electrical outlets can be difficult and misleading because of the

uncertainty of connection to the recessed electrical contacts. Other means should be

used to ensure that the terminals are not "live".

•If the equipment is used in a manner not specified by the manufacturer, the protection

provided by the equipment may be impaired.

Function Maximum Input

A AC 600 A

V AC 750 V

V DC 75 V

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176

FAX 781.665.0780 - TestEquipmentDepot.com

AM600 V2.0 6/073

PER IEC1010 OVERVOLTAGE INSTALLATION CATEGORY

OVERVOLTAGE CATEGORY I

Equipment of OVERVOLTAGE CATEGORY I is equipment for connection to circuits in

which measures are taken to limit the transient overvoltages to an appropriate low level.

Note – Examples include protected electronic circuits.

OVERVOLTAGE CATEGORY II

Equipment of OVERVOLTAGE CATEGORY II is energy-consuming equipment to be

supplied from the fixed installation.

Note – Examples include household, office, and laboratory appliances.

OVERVOLTAGE CATEGORY III

Equipment of OVERVOLTAGE CATEGORY III is equipment in fixed installations.

Note – Examples include switches in the fixed installation and some equipment for industrial

use with permanent connection to the fixed installation.

OVERVOLTAGE CATEGORY IV

Equipment of OVERVOLTAGE CATEGORY IV is for use at the origin of the installation.

Note – Examples include electricity meters and primary over-current protection equipment

Description

Meter Description

1. Current clamp

2. Clamp opening trigger

3. 0 Ohms adjustment

4. Meter zero adjustment

5. Scale

6. “COM” Terminal

7. Range switch

8. Pointer Lock switch

9. V, Ωand Temp Terminal

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176

FAX 781.665.0780 - TestEquipmentDepot.com

AM600 V2.0 6/074

Operation

NOTE:Read and understand all Warning and Caution statements in this operation manual prior to using

this meter.

AC Current Measurements

WARNING: Remove the test leads from the meter before making current clamp

measurements.

1. Set the Range switch to the 600A range..

2. Set the Pointer Lock

switch is set to the right-

most position so that the

pointer may freely move.

3. If necessary, turn the

Zero Adjust screw to

zero the meter display.

4. Press the trigger to open

jaw. Fully enclose only

one conductor. For

optimum results, center

the conductor in the jaw.

5. The analog display

pointer will indicate the current reading.

6. When possible, set the Range switch to a lower range to obtain a reading in the

upper half of the scale.

AC/DC Voltage Measurements

1. Insert the black test lead into the negative COM terminal and

the red test lead into the positive Vterminal.

2. Set the Range switch to the highest AC or DC Voltage range.

3. Set the Pointer Lock switch is set to the right-most position so

that the pointer may freely move.

4. If necessary, turn the Zero Adjust screw to zero the meter

display.

5. Connect the test leads in parallel to the circuit under test.

6. The analog display pointer will indicate the voltage reading.

7. When possible, set the Range switch to a lower range to

obtain a reading in the upper half of the scale.

AM600 V2.0 6/075

Resistance Measurements

1. Insert the black test lead into the negative COM terminal and

the red test lead into the OHMS positive terminal.

2. Set the Range switch to the X1Ωor X100Ωposition as

needed.

3. Set the Pointer Lock switch is set to the right-most position so

that the pointer may freely move.

4. With the test leads open, adjust the meter zero so that the

pointer is over the ∞symbol.

5. Touch the test lead tips together and adjust the 0 Ohms adjust

until the pointer is over the 0 ohms position.

6. Touch the test probe tips across the circuit or component under

test.

7. The analog display pointer will indicate the resistance reading.

Temperature Measurements

Zero procedure (fig. 1)

1. Insert the temperature probe black plug into the COM terminal and the Probe tip

into the VΩterminal.

2. Adjust the pointer for a 0 Ωscale reading

Measurements (fig. 2)

1. Insert the temperature probe black plug into the COM terminal and the red plug

into the VΩterminal.

2. Place the temperature probe into the area to be tested.

3. Read the temperature on the °C or °F temperature scale

fig. 1 fig. 2

AM600 V2.0 6/076

Pointer Lock Function

The Pointer Lock switch freezes the pointer’s position and is used as a ‘data hold’ feature.

This feature is useful in dimly lit or hard to reach locations.

Specifications

Function Ranges Accuracy

6, 15, 60, 150 A ± 3% of Full ScaleAC Current

(50/60Hz)

600 A ± 5% of Full Scale

AC Voltage

(50/60Hz) 150, 300 and 750V ± 3% of Full Scale

DC Voltage 75 V DC ± 3% of Full Scale

2000 Ω (50 Ωmid-scale) (Rx1)

Resistance

200 kΩ (5 kΩmid-scale) (Rx100)

± 3% of Full Scale Length

Temperature -4 to 302°F (-20°C to 150°C) ± 3% of arc

Clamp jaw opening 1.3" (34 mm) max.

Display Analog with Zero Adjustment

Input Impedance ACV: 2 kΩ/V, DCV: 4.5 kΩV

AC bandwidth 50 / 60 Hz

Temperature Probe Thermistor

Operating conditions Temperature 32 - 104°F (0 - 40°C); Relative Humidity <80%

Operating Altitude 7000 ft. (2000 m) maximum.

Battery One (1) 1.5V ‘AA’ Battery

Fuse 500 mA, 250V fast

Dimensions & Weight 8.4 x 3.4 x 1.7" (214 x 85 x 43 mm); 12.4 oz. (350 g)

Safety For indoor use and in accordance with the requirements for

double insulation to IEC1010-1 (2001): EN61010-1 (2001)

Overvoltage Category II 600V, Pollution Degree 2.

Standards

Maintenance

WARNING: To avoid electrical shock, disconnect the meter from any circuit and remove the test leads from

the input terminals before opening the case. Do not operate the meter with an open case.

Cleaning and Storage

Periodically wipe the case with a damp cloth and mild detergent; do not use abrasives or

solvents. If the meter is not to be used for 60 days or more, remove the battery and store it

separately.

Battery Replacement

1. Remove the Phillips head screws from the rear battery compartment cover.

2. Replace the 1.5V ‘AA’ battery and replace the cover.

Fuse Replacement

1. Remove the two (2) Phillips head screws from the rear cover.

2. Carefully lift off the rear cover.

3. Replace the 0.5A/250V fuse. Make sure the fuse is centered in the fuse holder.

4. Replace the rear cover.

99 Washington Street

Melrose, MA 02176

Phone 781-665-1400

Toll Free 1-800-517-8431

Visit us at www.TestEquipmentDepot.com

Back to the Extech AM600 Product Info Page

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176

FAX 781.665.0780 - TestEquipmentDepot.com

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