background image

Elenco

TM

Electronics, Inc.

150 W. Carpenter Avenue

Wheeling, IL  60090

(847) 541-3800

http://www.elenco.com

e-mail: [email protected]

OPERATOR’S

INSTRUCTION MANUAL

M-1750

3 3/4 COUNT

DIGITAL MULTIMETER

Copyright © 2003 Elenco

TM

Electronics, Inc.

Summary of Contents for M-1750

Page 1: ...onics Inc 150 W Carpenter Avenue Wheeling IL 60090 847 541 3800 http www elenco com e mail elenco elenco com OPERATOR S INSTRUCTION MANUAL M 1750 3 3 4 COUNT DIGITAL MULTIMETER Copyright 2003 ElencoTM Electronics Inc ...

Page 2: ...re and Maintenance 12 6 1 Caring for Your Multimeter 13 6 2 Maintenance 13 WARNING PLEASE READ THIS INSTRUCTION MANUAL CAREFULLY Misuse and or abuse of this instruction cannot be prevented by any printed word and may cause injury and or equipment damage Please follow all these instructions and measurement procedures faithfully and adhere to all standard industrial safety rules and practices The mu...

Page 3: ...aged or if you suspect that the meter is not operating properly Turn off the power to the circuit under test before cutting unsoldering or breaking the circuit Small amounts of current can be dangerous Use caution when working above 60VDC or 30VAC rms Such voltages pose a shock hazard When using the test lead keep your fingers behind the guards on the test lead Disconnect the live test lead before...

Page 4: ...nt at which the voltage with respect to earth ground exceeds in this case 500 volts This symbol adjacent to one or more terminals identifies them as being associated with ranges that may in normal use be subjected to particularly hazardous voltages For maximum safety the instrument and its test leads should not be handled when these terminals are energized This marking indicates that equipment is ...

Page 5: ... terminals 2 Remove the screws from the bottom case and lift the case Remove the spent batteries and replace them with batteries of the same type Fuse Replacement Remove the screws from the bottom case and lift the case Replace the fuse with the same type and rating 5 x 20mm 0 5A 250V fast blow fuse or 5 x 20mm 10 250V fast blow fuse as the replacements 3 Features 9 Functions 23 Measuring Ranges S...

Page 6: ...ad to the COM socket and the red test lead to the VWHz socket 2 Set the selector switch to the Hz or Duty position 3 Connect the probes across the source or load under measurement 6 hFE Test 1 Set the selector switch to the desired hFE position PNP or NPN type transistor 2 Never apply an external voltage to the hFE sockets Damage to the meter may result 3 Plug the transistor directly into the hFE ...

Page 7: ...ure that the circuit to be tested is dead Max input overload 250Vrms and 10sec 4 Capacitance Measurement 1 Before testing discharge the capacitor by shorting its leads together Use caution in handling the capacitors because they may have a charge on them of considerable power before discharging 2 Connect the black test lead to the COM socket and the red test lead to the VWHz socket 3 Set the selec...

Page 8: ...art with the highest and work your way down 7 Extreme care should be taken when using the instrument in conjunction with a current transformer connected to the terminals if an open circuit occurs 8 Ensure that the test leads and probes are in good condition with no damage to the insulation 9 Take care not to exceed the overload limits as shown in the specifications 10 Before opening the case of th...

Reviews: