Mastech MS8251B, Operation Manual

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3.2.12 Temperature
Range Input Test Range Accuracy
Ambient Temp ±2 digits
±4 digits
±5 digits
±4 digits
±20 digits
0~1000°C 400°C
1000°C
800°F
1800°F
32~1832°F
±(1.0% of reading
+3 digits)
4.
Using the Meter
4.1 Data Hold
4.2.1
Note:
In voltage, current, resistance and capacitance
modes, the default range is “AUTO”
4.2.2 Press “
RANGE ” to enter manual ranging.Each
press switches to a higher range.Pressing the
button at the highest range will return to the lowest
range.
4.2.3 Hold “
RANGE ” to return to “AUTO”
4.2.4 Pressing “ RANGE ” in Max/Min mode will return the
meter to normal reading.
Manual range is disabled in frequency mode.
4.2 Manual Range
4.1.1 During a measurement, press the “ HOLD ” button
once to hold the reading.
4.1.2 Press “
HOLD ” again to release the hold.
4.3 Relative Measurement Mode Switch
4.3.1
will store the reading when pressed and display the
difference between current reading and the stored
reading. Press “ REL to enter relative measurement. This
4.4.1 Press “ MAX/MIN ” to display the maximum value
recorded
4.4.2 Press “
MAX/MIN ” again to display the minimum
value recorded.
4.4.3 Hold “
MAX/MIN ” to return to normal readings.
4.4 Maximum/Minimum Reading
4.5 Function Switching
4.6 Backlight
4.7 Automatic Power-off
4.8 Non-Contact Voltage Detection (NCV)
4.7.1 If there is no operation for 15 minutes after turning
the machine on, the meter will automatically power
off to save the battery.
4.7.2 After automatic power-off, press any key to turn the
meter on again.
4.7.3 Holding the "
FUNC " key when powering on will
cancel automatic power-off function.
4.8.1 With the rotary switch in any position except OFF,
hold down the “
NCV ” button.
4.8.2 Move the tip of the meter near the voltage source
or conductor.If the voltage detected is greater than
110VAC, the buzzer will beep and the NCV indicator
near the tip of the meter will flash.
4.5.1 In voltage or current modes, press “ FUNC ” to
switch between AC and DC.
4.5.2 In resistance, diode or continuity modes, press
“
FUNC ” to switch between measurements.
4.5.3 In temperature mode, press “ FUNC ” to switch
between °C and °F.
4.6.1 Press “ ”to turn on backlight.Press again to turn off.
4.3.2 Press “ REL ” again to return to normal.
Ambient Temp ±2 digits