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measurements, reset the function switch to successively 
lower  mA  DC  positions  to  obtain  a  higher  resolution 
reading.  The  display  will  indicate  the  proper  decimal 
point and value. 

 

RESISTANCE MEASUREMENTS 

WARNING:

 To avoid electric shock, disconnect power to 

the unit under test and discharge all capacitors before 
taking any resistance measurements. Remove the 
batteries and unplug the line cords. 

1. Set the function switch to the highest



position.  

2. Insert the black test lead banana plug 

into 

the 

negative 

(COM) 

jack 

Insert  the  red  test  lead  banana  plug 
into the positive



 jack. 

3. Touch  the  test  probe  tips  across  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 
interfere with the resistance reading. 

4. Read  the  resistance  in  the  display  and  then  set  the 

function  switch  to  the  lowest 



position  that  is  greater 

than  the  actual  or  any  anticipated  resistance.  The 
display will indicate the proper decimal point and value. 

CONTINUITY CHECK 

Summary of Contents for ZI-846

Page 1: ...co ZI 846 OPERATING INSTRUTION DIGITAL MULTIMETER 10A COM V mA OFF 600 200 2000 20m 200 m 10A 1 5V 9V 200 2000 20k 200k 2000 k 600 200 20 2000 m 200 m VAC ADC BATT CAT III 600V VDC HOLD www zicotech c...

Page 2: ...DC 200mA 250V fast acting fuse A DC 10A 250V fast acting fuse 30 seconds max every 15 minutes Resistance Continuity 250Vrms for 15sec max 2 USE EXTREME CAUTION when working with high voltages 3 DO NO...

Page 3: ...evice 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 situa...

Page 4: ...rly hazardous voltages For maximum safety the meter and its test leads should not be handled when these terminals are energized This symbol indicates that a device is protected throughout by double in...

Page 5: ...ompartment are on rear of unit SYMBOLS AND ANNUNCIATORS Continuity Diode test micro amps m milli volts amps k kilo ohms ohms VDC volts direct current VAC volts alternating current ADC amps direct curr...

Page 6: ...reading 2 digits Resistance 200 0 1 0 8 reading 2 digits 2000 1 20k 0 01k 200k 0 1k 2000k 1k 1 0 reading 2 digits Battery Test 9V 10mV 1 0 reading 2 digits 1 5V 1mV NOTE Accuracy specifications consi...

Page 7: ...1 1 digits Overrange indication 1 is displayed Polarity Automatic no indication for positive polarity Minus sign for negative polarity Measurement Rate 2 times per second nominal Low Battery Indicati...

Page 8: ...ds from any 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...

Page 9: ...light on or off Press the BACK LIGHT BUTTON to turn the back light on 2 Press the BACK LIGHT BUTTON to turn the back light off 1 ALWAYS turn the function switch to the OFF position when the meter is n...

Page 10: ...hest V DC position 2 Insert the black test lead banana plug into the negative COM jack Insert the red test lead banana plug into the positive V jack 3 Touch the black test probe tip to the negative si...

Page 11: ...r on the circuit is being switched ON or OFF Large voltage surges may occur that can damage the meter 1 Set the function switch to the highest V AC position 2 Insert the black test lead banana plug in...

Page 12: ...on and insert the red test lead banana plug into the mA jack 3 For current measurements up to 10A DC set the function switch to the 10A range and insert the red test lead banana plug into the 10A jack...

Page 13: ...he function switch to the highest position 2 Insert the black test lead banana plug into the negative COM jack Insert the red test lead banana plug into the positive jack 3 Touch the test probe tips a...

Page 14: ...esistance is less than approximately audible signal will sound If the circuit is open the display will indicate 1 DIODE TEST 1 Insert the black test lead banana plug into the negative COM jack and the...

Page 15: ...he black test lead to the negative side of the 1 5V or 9V battery 4 Read the voltage in the display Good Weak Bad 9V battery 8 2V 7 2 to 8 2V 7 2V 1 5V battery 1 35V 1 22 to 1 35V 1 22V REPLACING THE...

Page 16: ...st leads from any source of voltage before removing the fuse door 1 Disconnect the test leads from the meter and any item under test 2 Open the fuse door by loosening the screw on the door using a Phi...

Page 17: ...16 WARNING To avoid electric shock do not operate your meter until the fuse door is in place and fastened securely...

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