User's Manual

ATD-5544 INSTRUCTION MANUAL

MINI DIGITAL MULTIMETER

GENERAL

Before attempting to operate the instrument, become

familiar with each control. A thorough understanding of how

the instrument operates will avoid undue mistakes and

minimize measurement errors, instrument damage and the

possibility of personal injury.

FRONT PANEL DESCRIPTION

1. CASE

2. POWER SWITCH

3. 3-1/2 DIGIT LCD DISPLAY

4. FUNCTION AND RANGE SWITCH

5. "VΩmA" JACK

6. "COM" JACK

SPECIFICATIONS GENERAL

DISPLAY: 3-1/2digit LCD with a max reading of 1999

POLARITY: Automatic(-)negative polarity indication

ZERO ADJUSTMENT: Automatic

OVER RANGE INDICATION: only the diigt '1' is displayed.

POWER: 12V Alkaline Manganese button cells A23

EI12(Japan) or optional.

DIMENSIONS: 100mm long x 48mm wide x 26mm thick

NET WEIGHT: 104g (including battery)

ELECTRICAL SPECIFICATIONS

Accuracies are guaranteed for 1 year, 23℃±5℃ less than

75% RH

DC VOLTAGE

200m, 2V, 20V, 200V, 500V ±0.5%rdg±2d

Impedance: 1M ohm

OVERLOAD PROTECTION: 500V rms

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GENERAL Before attempting to operate the instrument, become familiar with each control. A thorough understanding of how ATD-5544 INSTRUCTION MANUAL MINI DIGITAL MULTIMETER the instrument operates will avoid undue mistakes and minimize measurement errors, instrument damage and the possibility of personal injury. FRONT PANEL DESCRIPTION 1. CASE 2. POWER SWITCH 3. 3-1/2 DIGIT LCD DISPLAY 4. FUNCTION AND RANGE SWITCH 5. "VΩmA" JACK 6.
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AC VOLTAGE AC VOLTAGE MEASUREMENT 200V, 500V (40Hz-400Hz) ±2.0%rdg±5d Impedance: 450k ohm OVERLOAD PROTECTION: 500V rms Set the FUNCTION and RANGE switch to desired ACV RESISTANCE: DC CURRENT MEASUREMENT 200,2000,20k,200k,2000k ±1.5%rdg±4d position and connect the test leads across the source or load under measurement. Set the FUNCTION and RANGE switch to DCA position. DC CURRENT: Connect test leads IN to a circuit turn. 2000μ, 20m, 200mA ±2.