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Confidential & proprietary information of

Snap-on. Do not reproduce.

13

Relative (REL) Function: 

Factors Out Lead 
Resistance on Sensitive 
Readings

Zero’s the display 

1. Press REL button to 

activate Zero display

2. Press again to 

deactivate

Digital Multimeter – Relative Button

13

Summary of Contents for 183A

Page 1: ...Confidential proprietary information of Snap on Do not reproduce 183A Digital Multimeter DMM 1 ...

Page 2: ...al proprietary information of Snap on Do not reproduce Digital Multimeter Sections Four Basic Sections of the Multimeter 1 Digital Display 2 Push Button Functions 3 Rotary Dial Selector 4 Test Lead Terminals 2 2 ...

Page 3: ...Readings and Locations on Start up Voltage Type AC or DC Analog Bar Graph Display of the Measured Value Auto Power Off Dial Setting Icon Reference Area Auto Ranging on Start up Low Battery symbol will appear only when power is low Digital Multimeter Sections Button Functions Area 3 ...

Page 4: ...RANGE toggles between Auto Ranging or Manual Ranging REC activates recording of MIN minimum and MAX maximum values Hz DUTY toggles between Frequency Hertz Hz or Duty Cycle on AC Volts AC Amps or Hz REL activates Relative Mode sets display to zero factors out undesired readings Digital Multimeter Sections 4 ...

Page 5: ...lts setting only Digital Multimeter Sections DMM Push Buttons Enhance Dial Functions HOLD freezes a value on the display a second press removes the hold going back to a live value activates backlight toggles between Continuity Buzzer and Diode test on the Ohm setting Toggles between degrees Celsius and Fahrenheit on the setting 5 FUNCTION ...

Page 6: ...resistance toggle to Continuity or Diode Test AC or DC selectable millivolts AC Volts LPF option OFF meter is not active DC Volts 40 micro amps DC max current setting measures tiny current draw in DC 4000 micro amps max current setting selectable AC or DC for very low current draw Digital Multimeter Sections 6 ...

Page 7: ...l Definitions 400 milli Amp max current setting selectable AC or DC for low current draw Digital Multimeter Sections 10 Amp max current setting selectable AC or DC CAPACITANCE measures capacitors HERTZ frequency measurements TEMP TEMPERATURE measures degrees C F using the FUNCTION button 7 ...

Page 8: ... 10 Amp fused terminal TEMP Micro milliamps red lead connection 500 milliamp amp fused terminal COMMON black lead connection used for most measurements Typically Ground Volts OHMS Hertz red lead connection used for Voltage Ohms resistance Diode Test Continuity Hertz frequency and Capacitance Digital Multimeter Sections 8 ...

Page 9: ...Confidential proprietary information of Snap on Do not reproduce 9 BUTTON FUNCTIONS ...

Page 10: ... 10 Use with the following Rotary Dial settings Converts meter from Auto Ranging to Manual Ranging 1 Press button once for manual range mode 2 Press again to move decimal 3 Hold down button for 3 seconds to go back to Auto ranging Digital Multimeter RANGE Button 10 ...

Page 11: ...produce 11 Use with the following Rotary Dial settings Records MAXIMUM and MINIMUM READINGS 1 Press button to activate record MAX 2 Press again to toggle to MIN or MAX 3 Hold button for 3 seconds to exit the Record function Digital Multimeter Record Button 11 ...

Page 12: ...ietary information of Snap on Do not reproduce 12 Use with the following Rotary Dial setting Changes from Hertz to Duty Cycle 1 Press Hz DUTY button to toggle between Hertz Duty Cycle Digital Multimeter Hz Duty Button 12 ...

Page 13: ...ion of Snap on Do not reproduce 13 Relative REL Function Factors Out Lead Resistance on Sensitive Readings Zero s the display 1 Press REL button to activate Zero display 2 Press again to deactivate Digital Multimeter Relative Button 13 ...

Page 14: ... 14 Function Adds additional functions DC to AC voltage Continuity and Diode to orange marked dial settings Toggles TEMP F to C 1 Press FUNCTION button to toggle to additional functions Digital Multimeter Function Button 14 Use with the following Rotary Dial setting ...

Page 15: ...t reproduce 15 Use with the following Rotary Dial setting Changes from live AC Volts to Averaged AC volts to slow a jumpy reading 1 Press LPF Low Pass Filter to activate averaging filter 2 Press again to deactivate the LPF Digital Multimeter LPF Button 15 ...

Page 16: ...e with the following Rotary Dial setting Holds a desired reading or activates the backlight Digital Multimeter Hold Button 1 Press Hold button to capture a reading 2 Press again to deactivate Activates Backlight button held down for 3 seconds Press and hold to deactivate ...

Page 17: ...Confidential proprietary information of Snap on Do not reproduce 17 ...

Page 18: ...mps or microamps can be used safely REMOVE THE RED TEST LEAD IMMEDIATELY from the meter when done performing any amperage test This lowers the chance of accidently checking voltage parallel connection when the meter is connected in series for amperage Blown fuses are most commonly caused by having the test leads in the wrong meter terminals NOT by the wrong dial setting Digital Multimeter Amperage...

Page 19: ...produce The meter MUST be connected in SERIES when preforming amperage tests This requires a break in the circuit which the meter can then be connected into which recompletes the circuit through the meter with test leads Digital Multimeter Amperage Testing 19 ...

Page 20: ... Do not reproduce The meter MUST be connected in SERIES when preforming amperage tests Do NOT connect it in parallel as you would for a voltage test THE FUSE WILL BLOW Digital Multimeter Amperage Testing Series Amperage Test Parallel Voltage Test 20 ...

Page 21: ...Confidential proprietary information of Snap on Do not reproduce 21 FUSES ...

Page 22: ... on Do not reproduce Always Test for Good Fuses Before Using a Meter 1 Put the red lead terminal into the VΩHz terminal no black lead needed 2 Remove the red lead alligator clip 3 Move the Rotary Dial to Ω Ohms Digital Multimeter Enhancements 22 ...

Page 23: ...duce 23 Always Test for Good Fuses Before Using a Meter 5 Touch the red probe to metal inside the terminal Any numeric value including 0 000 indicates a good fuse Any non numeric value including OL indicates a bad fuse µmA TEMP Digital Multimeter Enhancements 23 ...

Page 24: ...produce 24 Always Test for Good Fuses Before Using a Meter 6 Touch the red probe to metal inside the terminal Any numeric value including 0 000 indicates a good fuse Any non numeric value including OL indicates a bad fuse Digital Multimeter Enhancements A 24 ...

Page 25: ...ed 1 Remove the Protective Boot 2 Turn the Meter with Back Facing Up 3 Unscrew 3 Lower Screws 4 Remove the Protective Cover 5 Locate Bad Fuse 10A 0 5A 6 Replace with original style fuses 7 Reassemble in reverse order 8 NOTE Meter is powered by 9V battery Digital Multimeter Enhancements 25 ...

Page 26: ...ection There IS a Difference Fuses are designed specifically for multimeters Prevent arcing at fuse holder Exact replacements are critical to maintain the safety category rating Improper fuse replacement can be deadly Digital Multimeter Enhancements Lower CAT rating fuses 26 ...

Page 27: ... of Snap on Do not reproduce Fuses There IS a difference Ceramic fast blow fuses have a much higher breaking capacity or the fuse s ability to interrupt current flow without being destroyed or arced over Digital Multimeter Enhancements 27 ...

Page 28: ...Confidential proprietary information of Snap on Do not reproduce 28 TEST LEADS ...

Page 29: ...ion of Snap on Do not reproduce 29 Always Check for Good Test Leads Before Using a Meter 1 Insert red lead into VΩHz terminal 2 Insert black lead into COM terminal 3 Rotate the Dial setting to Ω Ohms Digital Multimeter Enhancements 29 ...

Page 30: ...ed both an inner and outer insulation barrier to better protect the user 4 The inner insulation layer is white so it is easy to spot any cuts or other damage against the red and black outer layer These should NOT be used Digital Multimeter Enhancements Always Check for Good Test Leads Before Using a Meter 30 ...

Page 31: ...ds Before Using a Meter 4 Press the Function button until the is visible on the display 5 Use the alligator clips Clip red black leads together 6 Audible signal means leads should be good 7 Move wires around intermittent sound could mean internally broken wires Digital Multimeter Enhancements 31 ...

Page 32: ...Confidential proprietary information of Snap on Do not reproduce Confidential proprietary information of TPI Do not reproduce End of the 183A METER Introduction 32 ...

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