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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

1

2

9

7

6

5

4

3

8

Figure 1

Summary of Contents for DM6850T

Page 1: ...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...

Page 2: ...safe condition Read through and understand the instructions contained in this manual before using the instrument Keep the manual at hand to enable quick reference whenever necessary The instrument is...

Page 3: ...the meter in areas where vibration dust or dirt is present Do not store the meter in excessively hot humid or damp places This meter is a sensitive measuring device and should be treated with the sam...

Page 4: ...0V 0 01V 400V 0 1V 600V 1V 1 2 8 Main Display Average Current Input Impedance 10M Frequency Response 50Hz 400Hz AC VOLTAGE RANGE RESOLUTION ACCURACY 0 1 30 Buzzer beep 30 100 Buzzer may or may not bee...

Page 5: ...least 2 seconds to turn off Bluetooth communication The symbol will be absent from the display 4 6 RELATIVE MEASUREMENT 1 The meter has a relative measurement feature that will display measured value...

Page 6: ...ean value response When the measured current is 5 amps continuous measurement is acceptable When the measured current is 5 10 amps do not exceed 10 seconds of continuous measurement Wait 15 minutes be...

Page 7: ...ut is not connected i e at open circuit OL will be displayed as an overrange indication Diode 1 Insert the black negative test lead into the COM input terminal 2 Insert the red positive test lead into...

Page 8: ...leads 2 Rotate the dial to the NCV position 3 The meter will display EF when the NCV function is being used Figure 3 4 Move the top of the meter close to the object to be tested 5 When the meter dete...

Page 9: ...errySmartMeter app icon will appear on your device 6 2 OPENING THE APPLICATION 1 Locate the Sperry SMARTmeter app 2 Touch the icon to open 6 3 CONNECTING YOUR SMART DEVICE After the opening the app se...

Page 10: ...OK button is pressed your smart device will begin recording data points As it is doing this you will immediately be prompted to name the file or accept the default file name 6 Data points will contin...

Page 11: ...the data was previously saved it can be reopened 6 6 3 Deleting saved files 1 To delete saved files press the File button 2 Press Open on the screen that appears 3 A list of saved files will be displa...

Page 12: ...change the name enter the new name and press Save iOS only 5 If you wish to continue sharing with the default or previously assigned name just press Save iOS only 6 You will be given the option to sh...

Page 13: ...to possible electric shock or personal injury replace the battery as soon as the battery indicator 1 8 8 8 Autorange MAX MIN AC DC appears 1 Disconnect the connection between the test leads and the ci...

Page 14: ...uch products shall not have been altered by the distributor The distributor shall be fully responsible for any warranties the distributor makes to its purchasers which are broader or more extensive th...

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