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OPERATING INSTRUCTIONS
Controls
WARNINGS
The 'ON/OFF' switch is used to turn the meter 'ON'.
Do not exceed the meter's voltage or current limits.
To conserve battery power, always turn the meter
Use caution when testing voltages higher than 50VAC
'OFF' when not in use.
or 110VDC.
The parameter to be measured is selected using the
Do not use if the meter or test leads are damaged.
rotary 'Function' switch.
Remove test leads before replacing the battery or fuse.
For accuracy make sure the correct range is used.
NOTE: The DT830B should be stored below 60°C
When the display shows '1' this indicates an
SPECIFICATIONS
over-range reading, use the next highest range.
Polarity:
Auto indication (-)
Connecting Test Leads
Voltage:
DCV: 200mV, 2000mV, 20V, 200V
There are three connection jacks, marked:
& 1000V
1. 10ADC
ACV: 200V & 750V (45-450Hz)
2. VΩmA
Current:
DCA 200µA, 2000µA, 20mA,
3. COM
200mA & 10A
The BLACK test lead should be placed in the
Resistance:
200Ohm, 2000Ohm, 20kOhm
'COM' jack.
& 200kOhm
For most measurements, except current over
Dry cell battery check:
1.5V (AAA, AA, C & D) & 9V
200mA the RED test lead should be placed in the
Diode test:
1mA current for forward Vdrop
'VΩmA' jack.
Transistor test:
hFE (0-1000) @ 3.2Vce
For current over 200mA but less than 10A the RED
Accuracy:
< ± 1.0% full scale reading
test lead should be placed in the '10ADC' jack.
Battery:
9V Dry Cell
Internal Fuse:
M205 (F500mA)
Low battery warning:
7.5V
Size:
126mm X 69mm X 24mm
Weight:
115g
MEASURING DC VOLTAGE
MEASURING AC VOLTAGE
1. Connect the RED test lead to the 'VΩmA' jack and
1. Connect the RED test lead to the 'VΩmA' jack and
the BLACK test lead to the 'COM' jack
the BLACK test lead to the 'COM' jack
2. Set the Function switch to the correct 'DCV' range.
2. Set the Function switch to the correct 'ACV' range.
3. Turn the meter 'ON'
3. Turn the meter 'ON'
4. Connect the test probes across the Voltage to be
4. Connect the test probes across the Voltage to be
measured.
measured.
BATTERY CHECK (DRY CELL,
MEASURING LOW DC CURRENT
1.5V & 9V)
(<200MA)
1. Connect the RED test lead to the 'VΩmA' jack and
1. Connect the RED test lead to the 'VΩmA'
the BLACK test lead to the 'COM' jack
jack and the BLACK test lead to the 'COM' jack
2. Set the Function switch to the '
' setting.
2. Set the Function switch to the correct
3. Turn the meter 'ON'
'DCA' range.
4. Connect the test probes across the terminals of
3. Turn the meter 'ON'
the battery to be measured, red probe to the (+)
4. Connect the test probes so that the meter
terminal of the battery.
becomes part of the circuit to be measured.
5. The meter will apply a small load to the battery and
If the load current is higher than 200mA the
display the current in mA (if the reading is close to
internal fuse will blow.
or above the following values, the battery is in good
condition:
– 1.5V battery (AAA,
AA, C, D) 4.0mA
– 9V battery 25mA
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