TPI 183A User manual

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183A Digital Multimeter
(DMM)
1

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Digital Multimeter Sections
Four Basic Sections of the Multimeter
1. Digital Display
2. Push Button Functions
3. Rotary Dial Selector
4. Test Lead Terminals
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2

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•Digital Display 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

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•DMM Push-Buttons Enhance Dial Functions
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

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LPF (Low Pass
Filter)
Filters out unwanted
electrical signals/noise -
AC volts 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

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6
•DMM Rotary Dial Symbol Definitions
Ohms (or 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

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•DMM Rotary Dial Symbol 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

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•DMM -Test Lead Terminal Symbols
Amps
red lead
connection
10 Amp
fused
terminal
TEMP, Micro &
milliamps
red lead connection
500 milliamp (½
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

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9
BUTTON
FUNCTIONS

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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

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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

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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

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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

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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

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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

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16
Use 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

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17

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•NEVER exceed the maximum amperage of the meter
terminal (either 500mA or 10 amps)
•Always start with the Amps setting first to verify if the
milliamps 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 Testing
18

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•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

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•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
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