T-RMS DIGITAL MULTIMETER

Model : DM - 19

INTRODUCTION

T-RMS DIGITAL MULTIMETER is a 3 5/6 digit true RMS small-size handheld digital multimeter, with complete functions, modern structure, high reliability and safety, large screen, and auto range. It can measure AC/DC voltage/current, resistance, diode, transistor, continuity, capacitance, frequency, duty ratio, Celsius/Fahrenheit temperature, NCV etc. It is an ideal tool for convenient repair and maintenance.

ACCESSORIES

• User manual
• Pair of test leads
• K-type Thermocouple

GENERAL  SPECIFICATION

• T-RMS Measurements
• Auto-Ranging
• Display 6000 counts LCD;
• Sampling Rate: 2~3 times/s;
• Over-Range Indication ‘OL’.
• Display for Capacitance range: 6200 counts
• Display for Frequency range: 9999 counts
• Polarity: Auto
• Operating Temperature: 0˚C~40˚C(32˚F~104˚F)
• Storage Temperature: -10˚C~50˚C(14˚F~122˚F)
• Relative Humidity: 0˚C~30˚C, RH≤75%; 30˚C~40˚C, RH≤50%
• Operating Altitude: 0~2000m
• Battery: 6F22 9V
• 
  Low Battery: LCD displays the symbol,
• Size: 186 mm×91mm×39mm
• Weight: around 305g (including batteries)
• Electromagnetic compatibility: RF≤1V/m, overall accuracy=specified accuracy+5% of range; RF>1V/m, no specified calculation.
• CE Certification
• Data Hold: To freeze displayed data
• Relative Measurement
• The device complies with IEC60101-1, Pollution Degree 2, over-voltage (CAT II 1000V), and double insulation safety standards
• Transistor Test and Diode Test
• Built-in Non Contact type Voltage Detector

TECHNICAL SPECIFICATIONS

Accuracy : ± (a% of reading + b), ‘b’ is the numerical value in least significant digit slot; 1 year warranty,

Ambient temperature: 23˚C±5˚C (73.4˚F±9˚F).

Ambient humidity: ≤75% RH.

DC VOLTAGE                                                                                                   CONTINUITY           , DIODE

Input impedance: around 10MΩ

AC VOLTAGE (T-RMS)

Overload protection : 250V

Input impedance: around 10MΩ

•       True RMS display. Frequency response: 45~400Hz

•       Accuracy assurance range: 5~100%,

•       AC crest factor can reach up to 3.0 (1.5 for 600V range)

Non sine wave: When the crest factor is 1.0~2.0, the accuracy

should increase by 3.0%, 2.0~2.5, 5.0%, and 2.5~3.0, 7.0%

Max input voltage: 1000Vrms.

RESISTANCE                                                                  CAPACITANCE

     Overload protection: 250V

Range

•              Measurement result = reading of resistor – reading of shorted test leads

•              Voltage at open circuit: around 1V

•              Overload protection: 250V

FREQUENCY/DUTY RATIO                                                                         AC CURRENT (T-RMS)

Overload protection: 250V

Input amplitude a: (DC level is zero)

≤ 100kHz: 100m Vrms≤a≤20Vrms

>    100kHz~1MHz: 200mVrms≤a≤20Vrms

>    1MHz: 500mVrms≤a≤20Vrms

>    5MHz~10MHz: 900mVrms≤ a ≤20Vrms

Duty ratio %: only applicable to ≤10kHz measurement             Frequency response: 45~400Hz

                                                                                                               Display: True RMS

TEMPERATURE                                                                        Display: True RMS                                                             

      Accuracy assurance range: 5~100%, in short circuit  

      status, remaining readings with less than 2 digits are

      permitted.

      AC crest factor can reach up to 3.0.

     Non sine wave: When the crest factor is 1.0~2.0, the

     accuracy should increase by 3.0%, 2.0~2.5, 5.0%, and

     2.5~3.0, 7.0%

     Overload protection: similar to the protection for DC

     current measurement

Overload protection: 250V

Note: The equipped accessory, K-type thermocouple can only

test the temperature below 230˚C /446˚F.

DC CURRENT

The Device can test up to 10A current continuously.

Overload Protection:

µA mA range : F2 Fuse FF0. 6A H 250V

20A range : F1 Fuse F 20A H 250V

 Note: There may be any change in specification due to continuous R & D without notice.