Auto off, Data hold, Mode button – Fieldpiece SPDM1 - Pocket Digital Multimeter User Manual
Page 2: Non-contact voltage, Voltage ac/dc, Resistance and continuity, Diode test, Storing test leads, More pocket-sized instruments from fieldpiece

Auto off
Your meter will turn off automatically after 10 min-
utes without use. After auto power off, press HOLD
button to restore power. The last reading shown
before it turned off will be displayed.
Data HOLD
Press HOLD button to keep the current range and
reading displayed until HOLD is pressed again.
Mode button
With the function set to VOLTS, press the mode
button to switch between AC and DC.
With the function set to
Ω / / , press the
mode button to switch between resistance (ohms),
continuity, and diode test.
Non-contact voltage
The NCV function detects live AC voltage above
24VAC; sensitive enough to detect thermostat power.
1. Store leads in back of meter and switch to
OFF/NCV before using the NCV function.
2. Press and hold down the NCV button. The non-
contact voltage sensor is located at the red arrow
near the top of the meter. The closer the red
arrow is to AC voltage, the louder the beep and
the brighter the red LED.
3. Senses AC voltage between 24V and 600V.
Voltage AC/DC
1. With the function switch set to VOLTS, use mode
button to select AC or DC voltage.
2. Touch the probes to test
points as shown.
3. The meter will display the
voltage with the best
possible resolution. The
SPDM1 is an autoranging
meter so the decimal point will move to show
best resolution. Make sure you notice whether
the meter is displaying V (volts) or mV (millivolts).
Resistance and continuity
1. With the function switch set to
Ω / / , use
mode button to toggle between ohms,
continuity, and diode.
2. Turn off power to circuit
being tested.
3. Touch probes to test
points as shown.
4. If mode is set to resistance
(
Ω), the meter will display resistance with the best
possible resolution. Make sure you notice
whether the meter is displaying
Ω (ohms), KΩ
(kiloohms), M
Ω (megaohms).
5. If mode is set to continuity ( ), the beeper will
sound continuously if the resistance is less than
~25
Ω.
Diode test
1. With the function switch set to
Ω / / , use
mode button to select diode test.
2. Turn off power to circuit being tested.
3. Touch probes to the diode. A forward-voltage
drop should be about 0.6V.
4. Reverse probes. If the diode is good, “OL” is dis-
played. If the diode is shorted, a value about 0.0V
will be displayed. If the diode is open, “OL” is dis-
played in both directions.
Storing test leads
For convenient lead storage, open the back cover
and wrap the leads around posts.
More pocket-sized instruments from Fieldpiece
If you like the small size and convenience of your SPDM1 meter,
check out some of the other pocket-sized instruments offered by
Fieldpiece.
HOLD
MAX
MIN
°C/°F
ON
OFF
SPK1
84.6
°F
MAX
C A U
T I O
N
SIR2
LASER
RADIA
TION
Do not
stare
into
beam
Complies
with
21 CFR
Ch.1/J
Output
<1mW
, 635-350nm
Class
II Laser
Product
Laser
radiation
when
open
SPK1 Pocketknife Style Thermometer
• Easily hangs from vent or thermostat.
• Pull out rod just like you would a pocketknife.
• Grooves hold rod at any angle.
• Easily hangs from flex duct.
• Rod folds away; no sleeve to lose.
• Range: -58°F to 392°F.
SIR2 Infrared Thermometer with Laser Sight
• Conveniently fits in a shirt pocket.
• View angle 3:1.
• Laser guide.
• Faster than thermistor based thermometers.
• Use immediately after pulling from your pocket.
• Range: -27°F to 482°F.
PLM2 LED Flashlight with Inspection Mirror
• Read part numbers in the dark.
• Bright white LED to light the darkest of spaces.
• Clips to your pocket like a pen.
• 2” x 1” mirror size.
• Mirror slides off when all you need is the light.
• Telescopes between 6½” and 30½”