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15 min.

every

MAX

30sec.

For

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20A

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OPERATING INSTRUCTION 

   

DIGITAL MULTIMETER 

            MODEL 9908

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SAFETY INFORMATION 

 

The following safety information must be observed to 

insure maximum personal safety during the operation 

at this meter: 

 

 

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  be  at  ground 

potential.  Keep  your  body  isolated  from  ground 

by using dry clothing, rubber 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 working above 60V dc or 30V 

ac rms. such voltages pose a shock hazard. 

 

When using the probes, keep your fingers behind 

the finger guards on the probes. 

 

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: 

 

 

SAFETY SYMBOLS 

 

This  symbol  adjacent  to  another 

symbol,  terminal  or  operating  device 

indicates  that  the  operator  must  refer 

to  an  explanation  in  the  Operating 

Instructions  to  avoid  personal  injury 

or damage to the meter. 

This 

WARNING

  symbol  indicates  a 

potentially  hazardous  situation,  which 

if not avoided, could result in death or 

serious injury. 

This 

CAUTION

  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  point  at  which 

the  voltage  with  respect  to  earth 

ground  exceeds  (in  this  case)  1000 

Input Limits 

Function 

Maximum Input 

V DC or V AC 

1000V  DC,  700V 
AC 

mA DC/AC 

200mA DC/AC 

A DC/AC 

20A  DC/AC  (30 
seconds max every 
15 minutes) 

Frequency, 
Resistance, 
Capacitance,  Diode, 
Continuity 
Temperature 

250V DC/AC 

WARNING 

CAUTION 

MAX   

500V

 

Summary of Contents for 9908

Page 1: ...oltage 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 SAFETY SYMBOLS This symbol adjacent to another symbol terminal or operating device indicates that the operator must refer to an ex...

Page 2: ...oltage drops below the operating level Auto power off Meter automatically shuts down after approx 10 minutes of inactivity Measurement rate 2 times per second nominal Operating environment 0 oC to 50 oC 32 oF to 122 oF at 70 relative humidity Storage temperature 20 oC to 60 oC 4 oF to 140 oF at 80 relative humidity For inside use max height 2000m Pollution degree 2 Power One 9V battery NEDA 1604 I...

Page 3: ...c or ac rms OPERATION WARNING Risk of electrocution High voltage circuits both AC and DC are very dangerous and should be measured with great care If 1 appears in the display during a measurement the value exceeds the range you have selected Change to a higher range NOTE On some low AC and DC voltage ranges with the test leads not connected to a device the display may show a random changing readin...

Page 4: ...ositive side of the circuit 6 Apply power to the circuit 9 Read the current in the display The display will indicate the proper decimal point value AC CURRENT MEASUREMENTS WARNING To avoid electric shock do not measure AC current on any circuit whose voltage exceeds 250V AC CAUTION Do not make current measurements on the 20A scale for longer than 30 seconds Exceeding 30 seconds may cause damage to...

Page 5: ... evaluated as follows A If one reading shows a value and the other reading shows 1 the diode is good B If both readings show 1 the device is open C If both readings are very small or 0 the device is shorted NOTE The value indicated in the display during the diode check is the forward voltage FREQUENCY MEASUREMENT 1 Set the function switch to the 20KHz position 2 Insert the black test lead banana p...

Page 6: ...ny source of voltage before removing the battery door 1 Disconnect the test leads from the meter 2 Open the battery door by loosening the screw using a Phillips head screwdriver 3 Insert the battery into battery holder observing the correct polarity 4 Put the battery door back in place Secure with the one screw WARNING To avoid electric shock do not operate the meter until the battery door is in p...

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