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SAFETY INFORMATION 

 
The following safety information must be observed to ensure 
maximum personal safety during the operation of this meter: 
 

 

This meter is designed for use by trained and qualified 
professionals only. 

 

Do  not  use  the  meter  if  the  meter  or  test  leads  look 
damaged  or  if  you  suspect  that  the  meter  is  not 
operating properly. 

 

Never 

ground 

yourself 

when 

taking 

electrical 

measurements.  Do  not  touch  exposed  metal  pipes, 
outlets,  fixtures,  etc.,  which  might  Act  as  a  potential 
ground.  Keep  your  body  isolated  from  grounding  by 
using  dry  clothing,  rubber  soled  shoes,  rubber  mats  or 
any approved insulating material. 

 

Turn  off  power  to  the  circuit  under  test  before  cutting, 
unsoldering  or  breaking  the  circuit.  Small  amounts  of 
current can be dangerous. 

 

Use  caution  when  making  measurements  if  voltage  is 
above  25VAC  RMS  or  35VDC.  These  voltages  are 
considered a shock hazard. 

 

When using test lead probes, always keep your fingers 
behind the finger guard on the probe. 

 

Measuring  voltage  which  exceeds  the  limits  of  the 
multimeter  may  damage  the  meter  and  expose  the 
operator to a shock hazard. Always recognize the meter 
voltage limits as stated on the front of the meter. 

 

Never  apply  voltage  or  current  to  the  meter  that 
exceeds the specified maximum. 

Summary of Contents for DM-918

Page 1: ...DM 918 OPERATIONS MANUAL AUTORANGING MULTIMETER...

Page 2: ...ding by using dry clothing rubber soled shoes rubber mats or any approved insulating material Turn off power to the circuit under test before cutting unsoldering or breaking the circuit Small amounts...

Page 3: ...N symbol indicates a potentially hazardous situation which if not avoided may result damage to the product This symbol advises the user that the terminal s so marked must not be connected to a circuit...

Page 4: ...ve Input Jack for 10A DC or AC measurements 6 Measuring MODE selection button 7 Range button 8 Hold Backlight button 9 MAX Min Hold button DISPLAY DESCRIPTION Continuity Low Battery Diode HOLD Data Ho...

Page 5: ...drops below the operating level Measurement rate 3 times per second nominal Auto power off Meter automatically shuts down after approx 15 minutes of inactivity Operating environment 0 C to 50 C 32 F t...

Page 6: ...acy 6 000V 1mV 1 of rdg 3 dgts 60 00V 10mV 1 2 of rdg 3 dgts 600 0V 100mV 600 0V 1V Input Impedance 10M Frequency Range 50 to 400Hz Maximum Input 600V DC or 600V AC RMS DC Current Autoranging for A an...

Page 7: ...ut 600mA DC or 600mA AC RMS on A mA ranges 10A DC or AC RMS on 10A range Resistance Autoranging Range Resolution Accuracy 6 0 1 1 2 of rdg 4 dgts 6 1 1 0 of rdg 2 dgts 6 10 1 5 of rdg 2 dgts 6 100 6 1...

Page 8: ...g 4 dgts Sensitivity 8V RMS Overload protection 250V DC or AC RMS Duty Cycle Range Resolution Accuracy 0 1 99 9 0 1 1 2 of rdg 2 dgts Pulse width 100us 100ms Frequency width 5Hz 150kHz Sensitivity 8V...

Page 9: ...1 ALWAYS turn the function dial to the OFF position when the meter is not in use This meter has an Auto Power Off function that automatically shuts the meter OFF after 15 minutes of inactivity 2 If OL...

Page 10: ...ange for the measurements being made and is generally the best mode for most measurements For measurement situations requiring that a range be manually selected perform the following 1 Press the RANGE...

Page 11: ...ton DC VOLTAGE MEASUREMENTS CAUTION Do not measure DC voltages if a motor on the circuit is being switched ON or OFF Large voltage surges may occur that can damage the meter 1 Set the function dial to...

Page 12: ...ages if a motor on the circuit is being switched ON or OFF Large voltage surges may occur that can damage the meter 1 Set the function dial to the V position and press the MODE key to select the AC mo...

Page 13: ...n appears on the left side of the display 6 Remove power from the circuit under test then open up the circuit at the point where you wish to measure current 7 Touch the black test probe tip to the neg...

Page 14: ...uit at the point where you wish to measure current 7 Touch the black test probe tip to the negative side of the circuit and the red test probe tip to the positive side of the circuit 8 Apply power to...

Page 15: ...into the positive jack 3 Touch the test probe tips to either side of the circuit or part under test It is best to disconnect one side of the part under test so the rest of the circuit will not interf...

Page 16: ...t lead into the negative COM jack and the red test lead into the positive jack 3 Touch the test probe tips to the diode or semiconductor junction you wish to test Note the meter reading 4 Reverse the...

Page 17: ...before making a temperature measurement 1 Set the function dial to the C F position and press the MODE button to select between C Celsius and F Fahrenheit 2 Insert the Temperature Probe s into the Te...

Page 18: ...screwdriver 3 Remove old battery and insert new battery into battery holder observing correct polarity Replace battery cover and secure with two screws 4 Properly dispose of old battery WARNING To av...

Page 19: ...the 600mA range 10A 250V fast blow for the 10A range 5 Replace the battery cover and secure with two screws WARNING To avoid electric shock do not operate your meter until the fuse door is in place a...

Page 20: ...your PDI product at www PDImeters com NOTE Online product registration is required for all warranty claims All warranty claims must have a Return Goods Authorization assigned from PDI in order to beg...

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