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5. MEASURING CONSIDERATIONS

Caution :

* Do not apply the  overload

voltage, current to the input 

terminal !

(1) Ensure that the battery(006 P DC 9V) is  connected to
      its snap terminal correctly and placed in  the battery
      compartment.
(2) Before operating this instrument, familiarize yourself 
      with all instructions that mentioned in this manual.
(3) Always check to make sure that the function switch is
      set to the proper position.
(4) Place the RED Test Lead into the proper input terminal
      before making measurements.
(5) Remove either of the test leads from the circuit under 
      test when changing the measurement range.
(6) Do not exceed the maximum rated signal of each range 
     to the input terminal.
(7) The "Power On/Off Switch" always to the "OFF" position
      when the instrument does not use. Remove the battery if
      the instrument is  not to be used for a long period of 

 time.

(8) Be sure to slide the "Data Hold Switch" to the off position

 (left side) if the data function is not be executed.

7

Summary of Contents for DM-9027T

Page 1: ...DIGITAL MULTIMETER 4 1 2 digits True RMS Model DM 9027T ...

Page 2: ...ad voltage current to the input terminal Remove test leads before open the battery cover Cleaning Only use the dry cloth to clean the plastic case Environment Conditions Installation categories II Pollution Degree 2 Altitude up to 2000 meters Indoor use Relative humidity 80 max ...

Page 3: ... 4 MEASURING PROCEDURE 6 4 1 DCV ACV DCA ACA OHM Continuity beeper Diode hFE 6 4 2 Data hold 6 5 MEASURING CONSIDERATIONS 7 6 MAINTENANCE 6 1 Replacement of Battery 8 6 2 Replacement of Fuse 8 6 3 Cleaning 9 7 Optional Accessories 9 7 1 Holster HS 01 9 7 2 Other optional accessories adapters 10 8 THE ADDRESS OF THE AFTER SERVICE CENTER 12 ...

Page 4: ...ment 2 SPECIFICATIONS 2 1 General Specifications Display 15 mm 0 5 LCD w annunciators 4 1 2 digits Max reading 19999 Measurement 28 ranges DCV ACV DCA ACA ohms hFE DIODE Continuity Beeper Polarity Automatic Switching indicates negative polarity Zero Adjustment Automatic adjustment Over input Indicator 1 mark indication Sampling Time Approx 0 4 second Operating Temp 0 蚓 to 50 蚓 32 蚌 to 122 蚌 Operat...

Page 5: ...23 5 C DC Voltage Range 200 mV 2 V 20 V 200 V 600 V Resolution 0 01 mV 0 1 mV 1 mV 10 mV 0 1 V Accuracy 0 1 2d 200mV 3 0 2 2d 2V 20V 200V 600V Input Impedance 10 M ohm Over Load DCV 350 ACV 200mV range Protection DCV 600 ACV others AC Voltage True RMS Range 200 mV 2 20 200 600 V Resolution 0 01 mV 0 1 m 1 m 10 m 0 1 V Accuracy 0 8 10d 200mV 2V 20V 200V 600V spec are tested under 50 60 Hz Input Imp...

Page 6: ... Accuracy 0 8 10d 200uA 2mA 20mA 200mA 2 10d 10A spec are tested under 50 60 Hz Over Load 200u 2m 20m 200mA range Protection 0 5A fuse protection 10 A range Max 10A no fuse OHMS Range 200 2k 20k 200k 2M 20M ohm Resolution 0 01 0 1 1 10 100 1k ohm Accuracy 0 5 5d 200 ohm 0 3 5d 2k 20k 200k 2 M ohm 0 8 3d 20 M ohm Over Load DCV 350 ACV Protection Remark The above DCV ACV DCA ACA ohm spec are tested ...

Page 7: ... voltage VF good defect test Resolution 0 1 mV Transistor hFE 0 1000 hFE NPN PNP Data hold To freeze the display values Continuity Sound beeper for continuity check Beeper will sound if the measuring resistance 250 ohm approximately 4 ...

Page 8: ...tch 3 b 200 mA Current Input 3 3 Data Hold Switch 3 c 10 A Current Input 3 4 Function Rotary Switch 3 d Transistor hFE Input 3 5 DCV Rotary Switch 3 6 ACV Rotary Switch 3 7 ACA Rotary Switch 3 8 DCA Rotary Switch 3 9 OHM Rotary Switch 3 10 hFE Rotary Switch 3 11 Battery Compartment Cover 5 ...

Page 9: ...Function Range Selector Input Terminal DCV 3 5 DCV 3 a ACV 3 6 ACV 3 a DCA 200 mA 3 7 DCA 3 b DCA 200 mA 3 7 DCA 3 c ACA 200 mA 3 8 ACA 3 b ACA 200 mA 3 8 ACA 3 c OHM 3 9 ohm 3 a Continuity beeper 3 9 ohm beeper 3 a Diode 3 9 ohm Diode 3 a hFE 3 10 hFE 3 d 4 2 Data hold When make any measurement if select the Hold Switch 3 3 Fig 1 to the Hold position will keep the data on the display It will rele...

Page 10: ...switch is set to the proper position 4 Place the RED Test Lead into the proper input terminal before making measurements 5 Remove either of the test leads from the circuit under test when changing the measurement range 6 Do not exceed the maximum rated signal of each range to the input terminal 7 The Power On Off Switch always to the OFF position when the instrument does not use Remove the battery...

Page 11: ... another few hours before the tester becomes inaccurate 2 Open the Battery Cover 3 11 Fig 1 on rear cabinet by loose the screw on the battery cover and remove the battery 3 Replace with a 9V battery and reinstate the rear cabinet 6 2 Replacement of Fuse Fuse Rating 500 mA Size 5 mm dia x 20 mm 1 This instrument is provided with one 5 x 20 mm 500 mA fuse for 200mA 20mA 2mA 200uA current range overl...

Page 12: ...battery refer Fig 2 3 Replace the fuse according the spec and reinstate the battery cover again 6 3 Cleaning Caution Cleaning Only use the dry cloth to clean the plastic case 7 OPTIONAL ACCESSORIES ADAPTERS 7 1 Holster HS 01 High quality rubber protective holster Fig 2 9 ...

Page 13: ... 0 1 蚓 or 0 1 蚌 Test Lead High quality and better performance TL 02A test lead with silicon rubber wire separate alligator clip sets LIGHT Match DMM to be used as the ADAPTER Light meter LX 02 3 ranges 2000 20000 50000 LUX ANEMOMETER Match DMM to be used as the ADAPTER Anemometer AM 402 Measurements m s km h ft min knots HUMIDITY Match DMM be used as the humidity ADAPTER meter HA 701 Range 10 to 9...

Page 14: ... used as the DCA CURRENT ACA clamp meter ADAPTER Range 200A 2000A CA 202 Output 1 ACmV 1 ACA 1 DCmV 1 DCA MINI ACA Match DMM to be used as the ACA CURRENT clamp meter ADAPTER clamp meter Range 20A 200A CA 201 Output 1 ACmV 1 ACA 200A 10 ACmV 1 ACA 20A 50 A CURRENT 50 A DCA ACA resistance shunt SHUNT ST 50 Match DMM to measure the current up to 50 A precisely 11 ...

Page 15: ...8 THE ADDRESS OF THE AFTER SERVICE CENTER 12 9801 DM 9027T IEC1010 ...

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