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Page 7

For technical questions, please call 1-888-866-5797.

Item 37772 61593

SAFET

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Op

ERA

TION

M

AINTENAN

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E

SETU

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Operating Instructions

  Read the ENTIRE IMpORTANT SAFETy INFORMATION section 

at the beginning of this manual including all text under 

subheadings therein before set up or use of this product.

Tool Set Up

1.  There are different functions 

and 30 ranges provided. A 

rotary switch is used to select 

functions as well as ranges.

2.  A Power Button is used to 

turn the meter on or off.

3.  A push - push switch (push ON, 

push OFF) is used to hold data. 

This switch can be used with all 

available settings, including DCV, 

ACV, DCA, ACA, Hz, and C.

4.  As a general rule, the LCD display 

box is locked. To adjust the angle 

of the display, pull on the top 

of the meter and rotate it.

5.  This meter has four input jacks that 

are protected against overload to 

the limits shown. Depending on the 

intended function, connect either the 

black or red test lead to the COM jack.

6.  WARNING! Before attempting to insert 

a transistor’s capacitor thermocouple 

for testing, disconnect the Test Leads 

from all measurement circuits.

7.  WARNING! Before taking voltage 

measurements with Test Leads, 

remove the thermocouple. Do 

not connect Test Leads to the 

hFE or capacitor socket.

Function

Red Lead connection

Input Limits

200mV  & 200mV~

V/

Ω or 

V/

Ω/Hz

250Vdc or rms ac

V  & V~

V/

Ω or 

V/

Ω/Hz

1000Vdc, 700Vac (sine)

V/

Ω or 

V/

Ω/Hz

250Vdc or rms ac

Hz

V/

Ω or 

V/

Ω/Hz

250Vdc or rms ac

Ω

V/

Ω or 

V/

Ω/Hz

250Vdc or rms ac

(

μ

A) mA   & (

μ

A) mA~

mA

200mAdc or rms ac

2A   & 2A~

A

2Adc or rms ac

20A   & 20A~

20A

10A dc or rms ac continuous

20A for 15 seconds maximum

Additional Multimeter precautions

1.  Do not test voltage on AC 

circuits higher than 700 volts.

2.  Do not test voltage on DC circuits 

higher than 1000 volts.

3.  Do not test current on circuits 

higher than 20 amps.

4.  Be careful not to apply voltage to the 

Test Leads when they are connected 

to the COM and VΩmA Jacks or when 

the Multimeter is in an Ohms testing 

setting.  Damage can occur to the 

multimeter and the fuse may blow.

5.  Do not switch between testing 

modes with the multimeter 

connected to a circuit.

Summary of Contents for 37772

Page 1: ...e reference When unpacking make sure that the product is intact and undamaged If any parts are missing or broken please call 1 888 866 5797 as soon as possible Copyright 2004 by Harbor Freight Tools All rights reserved No portion of this manual or any artwork contained herein may be reproduced in any shape or form without the express written consent of Harbor Freight Tools Diagrams within this man...

Page 2: ...d result in minor or moderate injury Addresses practices not related to personal injury IMPORTANT SAFETY INFORMATION Safety Warnings and Precaustions Read all safety warnings and all instructions Failure to follow the warnings and instructions may result in electric shock fire and or serious injury Save all warnings and instructions for future reference 1 Electrical shock can cause death or injury...

Page 3: ...te meter if under the influence of alcohol or drugs Read warning labels on prescriptions to determine if your judgment or reflexes are impaired while taking drugs If there is any doubt do not operate the meter 14 WARNING This product contains lead a chemical known to the State of California to cause cancer and birth defects or other reproductive harm California Health Safety Code 25249 5 et seq 15...

Page 4: ...capacitors 26 Performance of this meter may vary depending on battery condition 27 Use the proper settings terminals techniques and range for the tests performed Start with the range stated in the instructions 28 Do not apply voltage to the Test Leads when the Multimeter is in the Ohms testing setting Damage can occur to the multimeter 29 Do not switch between testing modes with the multimeter con...

Page 5: ...under subheadings therein before set up or use of this product Functions AC Volt Section DC Volt Section AC Current Section DC Current Section Resistance Section V Ω Hz Jack COM Jack mA Jack 20A Jack Capacitance Section Frequency Section Transistor hFE Section Diode Position Continuity Position Temperature Section Temperature Measuring Socket Range Selector Switch Transistor Testing Socket Capacit...

Page 6: ...A 2 of rdg 5D AC Current Ranges 200μA 2mA 20mA 2A 10A Frequency Range 40 400Hz AC Current Accuracy 200μA 200mA 1 8 of rdg 3D 2mA 20mA 1 0 of rdg 3D 10A 3 0 of rdg 7D Resistance Ranges 200Ω 2KΩ 20KΩ 200KΩ 2MΩ 20MΩ Resistance Accuracy 200Ω 0 8 of rdg 3D 2K 2MΩ 0 8 of rdg 1D 20MΩ 1 0 of rdg 2D Capacitance Ranges 2nF 20nF 200nF 2μF 20μF Capacitance Accuracy 2nf 20μF 4 0 of rdg 3D Frequency Range 20KHz...

Page 7: ... jack 6 WARNING Before attempting to insert a transistor s capacitor thermocouple for testing disconnect the Test Leads from all measurement circuits 7 WARNING Before taking voltage measurements with Test Leads remove the thermocouple Do not connect Test Leads to the hFE or capacitor socket Function Red Lead Connection Input Limits 200mV 200mV V Ω or V Ω Hz 250Vdc or rms ac V V V Ω or V Ω Hz 1000V...

Page 8: ...bove under AC Voltage Measurements only use the DC settings instead AC Current Measurements Measure AC conductors carrying up to 20 amperes 1 Turn the Range Selector Switch to the 20A position Start with the highest range if the amperage is unknown 2 Plug the red lead into the 20A Jack For current under 20A plug the red lead into the mA Jack Plug the black lead into the COM Jack Switch the Multime...

Page 9: ...over the actual measurement These counts should be subtracted from the resulting reading For example when measuring 10 MΩ resistance the display will read 10 1 but the correct measurement should be 10 1 0 1 10 0MΩ 7 Remove and store Test Leads Capacitance Measurements Measure capacitance up to 20μF 1 Turn the Range Selector Switch to the 20μF position Start with the highest range if the capacitanc...

Page 10: ...ch the Multimeter ON 3 Connect red probe to the anode of the diode and the black to the cathode 4 The approximate forward voltage drop of the diode will be displayed in mV If the connection is reversed only 1 will be shown 5 Remove and store Test Leads Continuity Measurement Test continuity between two points of a circuit 1 Turn the Range Selector Switch to the position Switch the Multimeter ON 2 ...

Page 11: ...dry location 4 Other than the battery and fuse there are no replaceable parts on this unit Repairs should be done by a qualified technician Battery Fuse Replacement If the sign appears on the LCD display the battery should be replaced 1 Remove the Test Leads from the multimeter 2 Turn the unit over 3 Remove screws 4 Remove back cover carefully There may be wires attached 5 Pull battery fuse out of...

Page 12: ...so the above limitation of exclusion may not apply to you THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS To take advantage of this warranty the product or part must be returned to us with transportation charges prepaid Proof of purchase date and an explanation of the complaint must accompany the merchandise If o...

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