background image

Page 9

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

Item 37772 61593

SAFET

y

Op

ERA

TION

M

AINTENAN

c

E

SETU

p

Resistance Measurements

Measure circuit resistance up to 20M Ohms.

WARNING!

 Do not measure resistance 

on circuit with voltage running through it.

Notice:

 When measuring Ohms, 

start with the lowest range if the 

resistance is unknown.
1.  Turn the Range Selector Switch 

to the 200Ω position.

2.  Plug the red Test Lead into the V/Ω/

Hz Jack. Plug the black Test Lead into 

the COM Jack.  Switch the Multimeter 

ON. Short the Test Leads together. 

The meter should read “0” Ohms. 

3.  Touch the exposed conductors 

with the tips of the Test Leads.

4.  Read measurement. If the reading is 

“1”, set the Range Selector Switch to 

the next higher Ohm (Ω) position.

5.  When measuring resistance above 1 

MΩ, the meter may take a few seconds 

to give a stable reading. This is normal 

for high resistance measurements.

6.  At the 20MΩ range, the display reading 

will be around 0.1 counts 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 capacitance is unknown.

WARNING!

 Fully discharge 

capacitor before measuring.

2.  Plug capacitor into the 

capacitance testing socket (Cx). 

Switch the Multimeter ON.

3.  Read measurement. If the reading 

is less than 20μF, set the Range 

Selector Switch to a lower range.

WARNING!

 Avoid electric shock.  

Remove capacitor before switching 

between testing modes.

Frequency Measurements

Measure frequency up to 20kHz.
1.  Turn the Range Selector Switch 

to the 20kHz position.

2.  Plug the red Test Lead into the V/Ω/Hz 

Jack. Plug the black Test Lead into the 

COM Jack.  Switch the Multimeter ON.

Note:

 Reading is possible at input 

voltages above 10Vrms, but the 

accuracy is not guaranteed.

Note:

 In noisy enviroments, use a shield 

cable to measure smaller signals.
3.  Remove and store Test Leads.

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...

Reviews: