1
OPERATING INSTRUCTIONS
Thin TRMS, Bluetooth, Autoranging Multimeter
DM6850T
Rotary Switch
OFF
Power off
Capacitance
AC/DC Voltage Measurement
AC/DC Current Measurement
Diode / Continuity / Resistance
Measurement
NCV
Non-contact Voltage Measurement
Hz%
Frequency / Duty Cycle
˚C ˚F
°C/°F Temperature Measurement
A
A
400A
400A
A
A
400A
400A
A
A
400A
400A
Read this owners manual thoroughly before use and save.
IMPORTANT: RECEIVING INSTRUCTIONS
Visually inspect all components for shipping damage. If you find damage, notify the carrier at once.
Shipping damage is NOT covered by warranty. The carrier is responsible for all repair or replacement costs resulting from damage in shipment.
1.0 METER FUNCTIONS & DISPLAY SYMBOLS
1.1 FUNCTIONS (Figure 1)
1. Display: Backlit 3999 Count LCD screen
2. SELECT Button: Press to switch between:
• DC voltage and AC voltage measurement functions
• Resistance, diode, and continuity test functions
• Frequency and Duty Cycle measurement functions
• DC current and AC current measurement functions
• Celsius temperature and Fahrenheit temperature measurement functions
Hold for about 2 seconds to enable or disable Bluetooth communication
3. RELATIVE Button: Press to enter or exit Relative mode. Hold for about
2 seconds to start or stop recording readings in the memory of the meter.
4. 10A Terminal: Red test lead input jack for current measurements.
5. COM Terminal: Black test lead input jack common to all measurements.
6. INPUT Terminal: Red test lead input jack for all measurements
except current measurements.
7. Rotary Switch: Turn to power the meter on and off and select the desired
measurement function. To save battery power, turn to the
“OFF”
position when
the meter is not in use. See
“ROTARY SWITCH”
section for function descriptions.
8. MAX/MIN Button: Press to enter or exit the Min/Max recording mode.
9. HOLD Button: Press to enter or exit the Data Hold mode.
Hold for about 2 seconds to turn the backlight on or off. .
1.1 METER FUNCTIONS
Meter type:
Auto
Display Count:
3999
Sampling Rate:
About 2 to 3 times/sec
Battery:
Requires 2 AAA batteries
Input impedance:
10 Meg Ohm
AC Volt Ranges:
4V, 40V, 400V, 600V, best accuracy (1.0%+5)
DC Volt Ranges:
400mV, 4V, 40V, 400V, 600V, best accuracy (0.5%+5)
AC Amps:
4A, 10A, best accuracy (1.0%+5)
DC Amps:
4A, 10A, best accuracy (1.0%+5)
Resistance Ranges:
400ohm, 4kohm, 40kohm, 400kohm, 4M ohm,
and 40M ohm, best accuracy (0.8%+3)
Over Range Indication:
Displayed value > 3999 or the input
measurement range, displays OL
Frequency Ranges:
9.999Hz, 99.99Hz, 999.9Hz, 9.999kHz, 99.99kHz,
999.9kHz, 9.999MHz, best accuracy (1.0%+5)
Duty Cycle Range:
5%-95%
Capacitance Ranges:
9.999nF, 99.99nF, 999.9nF, 9.999uF, 99.99uF, 999.9uF,
best accuracy (2.5%+5)
Temperature Ranges:
-4°F–1832°F (-20°- 1000°C)
Diode Test:
The approximate forward voltage drop of the
diode will be displayed
Continuity Test:
Buzzer will sound if the resistance is < ~30
Ω
Non-contact Volt Ranges:
50 VAC, 120 VAC, 500 VAC
Polarity Indication:
“-” is displayed for negative polarity
Overload Protection:
10A/600V Fast fuse
Agency Approvals:
ETL, CE (IEC/EN61010:, CAT III 600V, Pollution Degree 2)
Operating Temperature: 32°F–104°F (0°C–40°C)
Relative Humidity:
< 75%
Storage Temperature:
14°F–122°F (-10°C–50°C)
IP Degree:
IP20
Dimension:
176mm x 81mm x 17mm
Weight:
Around 180g (without batteries)
Altitude:
Maximum 2000m
Warranty Info:
Limited lifetime warranty
Figure 2
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Figure 1