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ATP Instrumentation DT-931, Operating Instruction

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ATP Instrumentation DT-931 Operating Instruction Download Page 8

 

8 

Maximum Input: 10A dc or ac rms on 10A AC range. 

 

 

Resistance

   

Range 

Resolution 

Accuracy 

600.0

 

0.1

 

+1.2% of rdg + 4 dgts 

6.000k

 

1

 

+1.0% of rdg + 2 dgts 

60.00k

 

10

 

+1.2% of rdg + 2 dgts 

600.0k

 

100

 

6.000M

 

1k

 

+2.0% of rdg + 2 dgts 

60.00M

 

10k

 

+5.0% of rdg + 10 dgts 

Maximum Input: 600V dc or 600V ac rms. 

Capacitance

 (Auto-ranging) 

Range 

Resolution 

Accuracy 

40.00nF 

10pF 

+5.0% of rdg + 50 dgts 

400.0nF 

0.1nF 

 
+3.0% of rdg + 5 dgts 
 

4.000uF 

1nF 

40.00uF 

10nF 

400.0uF 

0.1uF 

+5.0% of rdg + 5 dgts 

4000uF 

1uF 

+5.0% of rdg + 5 dgts 

Maximum Input: 

6

00V dc or 

6

00V ac rms. 

Frequency

 (Auto-ranging) 

Range 

Resolution 

Accuracy 

9.999Hz 

0.001Hz 

 
+1.5% of rdg + 5 dgts 

99.99Hz 

0.01Hz 

999.9Hz 

0.1Hz 

 
 
+1.2% of rdg + 3 dgts 

9.999kHz 

1Hz 

99.99kHz 

10Hz 

Summary of Contents for DT-931

Page 1: ...OPERATING INSTRUCTION AUTORANGING MULTIMETER COM MAX 10A 15 min every MAX Ω V C F ...

Page 2: ...your body isolated from ground by using dry clothing rubber shoes rubber mats or any approved insulating material Turn off power to the circuit under test before cutting unsoldering or breaking the circuit Small amounts of current can be dangerous Use caution when working above 60V dc or 30V ac rms such voltages pose a shock hazard When using the probes keep your fingers behind the finger guards o...

Page 3: ...dous situation which if not avoided could result in death or serious injury This CAUTION symbol indicates a potentially hazardous situation which if not avoided may result damage to the product This symbol advises the user that the terminal s so marked must not be connected to a circuit point at which the voltage with respect to earth ground exceeds in this case 500 VAC or VDC This symbol adjacent...

Page 4: ...ximum safety the meter and its test leads should not be handled when these terminals are energized CONTROLS AND JACKS COM MAX 10A 15 min every MAX Ω V C F 8 9 5 1 7 6 3 4 2 1 6000 count Liquid Crystal Display with symbolic signs ...

Page 5: ... Backlight pushbutton 7 Max Min pushbutton 8 Range Diode pushbutton 9 Hz Duty pushbutton SYMBOLS AND ANNUNCIATORS Continuity BAT Low Battery Diode HOLD Data Hold AUTO AutoRanging AC Alternating Current or Voltage DC Direct Current or Voltage SPECIFICATIONS The instrument complies with EN61010 1 Insulation Class2 Double insulation ...

Page 6: ...ominal Auto power off Meter automatically shuts down after approx 15 minutes of inactivity Operating environment 0 oC to 50 oC 32 oF to 122 oF at 70 relative humidity Storage temperature 20 oC to 60 oC 4 oF to 140 oF at 80 relative humidity For inside use max height 2000m Pollution degree 2 Power One 9V battery NEDA 1604 IEC 6F22 Dimensions 150 H x 70 W x 48 D mm Weight Approx 255g Accuracy is giv...

Page 7: ... of rdg 3 dgts 600 0V 100mV 1000V 1V 2 0 of rdg 4 dgts Input Impedance 7 8M Frequency Range 50 to 60Hz Maximum Input 1000V dc or 1000V ac rms DC Current Range Resolution Accuracy 6A 1mA 2 5 of rdg 5 dgts 10A 10mA Overload Protection 10A 250V Fuse Maximum Input 10A dc or ac rms on 10A DC range AC Current Range Resolution Accuracy 6A 1mA 3 0 of rdg 5 dgts 10A 10mA Overload Protection 10A 250V Fuse F...

Page 8: ...gts Maximum Input 600V dc or 600V ac rms Capacitance Auto ranging Range Resolution Accuracy 40 00nF 10pF 5 0 of rdg 50 dgts 400 0nF 0 1nF 3 0 of rdg 5 dgts 4 000uF 1nF 40 00uF 10nF 400 0uF 0 1uF 5 0 of rdg 5 dgts 4000uF 1uF 5 0 of rdg 5 dgts Maximum Input 600V dc or 600V ac rms Frequency Auto ranging Range Resolution Accuracy 9 999Hz 0 001Hz 1 5 of rdg 5 dgts 99 99Hz 0 01Hz 999 9Hz 0 1Hz 1 2 of rd...

Page 9: ...lse width 100us 100ms Frequency width 5Hz 150kHz Sensitivity 0 5V RMS Maximum Input 600V dc or 600V ac rms Temperature Range Resolution Accuracy 20oC 760oC 1 oC 3 of rdg 5 oC 9 oF 4 oF 1400 oF 1oF Sensor Type K Thermocouple Overload protection 600V dc or ac rms Diode Test Test current Resolution Accuracy 0 3mA typical 1 mV 10 of rdg 5 dgts Open circuit voltage 1 5V dc typical Overload protection 6...

Page 10: ...omatically shuts the meter OFF if 15 minutes elapse between uses 2 If OL appears in the display during a measurement the value exceeds the range you have selected Change to a higher range NOTE On some low AC and DC voltage ranges with the test leads not connected to a device the display may show a random changing reading This is normal and is caused by the high input sensitivity The reading will s...

Page 11: ...3 To exit the Manual Ranging mode and return to Autoranging press and hold the RANGE key for 2 seconds Note Manual ranging does not apply for the Frequency functions MAX MIN Note When using the MAX MIN function in Autoranging mode the meter will lock into the range that is displayed on the LCD when MAX MIN is activated If a MAX Min reading exceeds that range an OL will be displayed Select the desi...

Page 12: ...acklight function The backlight will automatically turn off after 10 seconds HOLD The hold function freezes the reading in the display Press the HOLD key momentarily to activate or to exit the HOLD function Hz duty 1 Switch to Hz Duty range 2 Press the Hz Duty button to show the reading in the display and the Hz Duty indicator will appear on the display DC VOLTAGE MEASUREMENTS CAUTION Do not measu...

Page 13: ...e value AC VOLTAGE MEASUREMENTS WARNING Risk of Electrocution The probe tips may not be long enough to contact the live parts inside some 240V outlets for appliances because the contacts are recessed deep in the outlets As a result the reading may show 0 volts when the outlet actually has voltage on it Make sure the probe tips are touching the metal contacts inside the outlet before assuming that ...

Page 14: ...ad banana plug into the negative COM jack 2 For DC current measurements set the function switch to the DC 10A position and insert the red test lead banana plug into the 10A jack 3 Remove power from the circuit under test then open up the circuit at the point where you wish to measure current 4 Touch the black test probe tip to the negative side of the circuit Touch the red test probe tip to the po...

Page 15: ...ments set the function switch to the AC 10A position and insert the red test lead banana plug into the 10A jack 3 Remove power from the circuit under test then open up the circuit at the point where you wish to measure current 4 Touch the black test probe tip to the negative side of the circuit And touch the red test probe tip to the positive side of the circuit 5 Apply power to the circuit 6 Read...

Page 16: ...e of the part under test so the rest of the circuit will not interfere with the resistance reading 4 Read the resistance in the display The display will indicate the proper decimal point value and symbol CONTINUITY CHECK WARNING To avoid electric shock never measure continuity on circuits or wires that have voltage on them 1 Set the function switch to the position 2 Insert the black lead banana pl...

Page 17: ...anana plug into the positive jack 4 Touch the test probe tips to the diode or semiconductor junction you wish to test Note the meter reading 5 Reverse the probe polarity by switching probe position Note this reading 6 The diode or junction can be evaluated as follows A If one reading shows a value and the other reading shows OL the diode is good B If both readings show OL the device is open C If b...

Page 18: ...nd value CAPACITANCE MEASUREMENTS WARNING To avoid electric shock disconnect power to the unit under test and discharge all capacitors before taking any capacitance measurements Remove the batteries and unplug the line cords 1 Set the function switch to the CAP position nF and a small value will appear in the display 2 Insert the black test lead banana plug into the negative jack COM and the red t...

Page 19: ...M jack and the red test lead banana plug into the positive Temp jack 3 Touch the Temperature Probe head to the part whose temperature you wish to measure Keep the probe touching the part under test until the reading stabilizes about 30 seconds 4 Read the temperature in the display The digital reading will indicate the proper decimal point and value WARNING To avoid electric shock be sure the therm...

Page 20: ...N WARNING To avoid electric shock disconnect the test leads from any source of voltage before removing the battery door 1 Disconnect the test leads from the meter 2 Open the battery door by loosening the screw using a Phillips head screwdriver 3 Insert the battery into battery holder observing the correct polarity 4 Put the battery door back in place Secure with the two screws WARNING To avoid ele...

Page 21: ...ning the screw on the door using a Phillips head screwdriver 3 Remove the old fuse from its holder by gently pulling it out 3 Install the new fuse into the holder 4 Always use a fuse of the proper size and value 10A 250V fast blow for the 10A range 5 Put the fuse door back in place Insert the screw and tighten it securely WARNING To avoid electric shock do not operate your meter until the fuse doo...

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