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Besantek BSTMT266 Instruction Manual

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DIGITAL MULTIMETER
INSTRUCTION MANUAL

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Summary of Contents for Besantek BSTMT266

  • Page 1 DIGITAL MULTIMETER INSTRUCTION MANUAL...

  • Page 2: Table Of Contents

    INDEX PAGE 1. INTRODUCTION......2. SAFETY NOTES......3. FEATURES........4. SPECIFICATIONS......5. GENERAL........6. INSTRUMENT LAYOUT....7. MEASUREMENT......10-11 8. MAINTENANCE......9. FUSE REPLACEMENT....

  • Page 3: Introduction

    1. INTRODUCTION NOTE This meter has been designed and tested According to CE Safety Requirements for Electronic Measuring Apparatus, IEC / EN 61010-1 and other safety standards. Follow all warnings to ensure safe operation. WARNING READ "SAFETY NOTES" (NEXT PAGE) BEFORE USING THE METER.

  • Page 4: Safety Notes

    2. SAFETY NOTES ● Read the following safety information carefully Before attempting to operate or service the meter. ● Use the meter only as specified in this manual. Otherwise, the protection provided by the meter may be impaired. ● Rated environmental conditions : (1) Indoor Use.

  • Page 5: Features

    3. FEATURES ● 4000 - count LCD. ● Full automatic measurement. Voltage measurement. Current measurement. Resistor measurement. Frequency measurement. ● Range change function. ● Data Hold function. ● Continuity check. ● Diode measurement. ● Low battery indication. ● 40M Hz frequency counter. ●...

  • Page 6: Specifications

    4. SPECIFICATIONS (All at 23°C±5°C, ≤80%R.H) AC Voltage : Range Resolution Accuracy 400 mV 100 µV ±(1% rdg+5dgt) 1 mV ±(1% rdg+5dgt) 40 V 10 mV ±(1% rdg+5dgt) 400 V 100 mV ±(1% rdg+5dgt) 750 V ±(1% rdg+5dgt) Input impedance : 10 MΩ DC Voltage : Range Resolution...
  • Page 7 DC AC 10A : Range Resolution Accuracy 10 A 10 mA ±(2% rdg+3dgt) Overload Protection 12.5 A(500 V) fast blow fuse Resistance : Range Resolution Accuracy 400 Ω 0.1 Ω ±(1.5% rdg+3dgt) 4 kΩ 1 Ω ±(1.5% rdg+3dgt) 40 kΩ 10 Ω...

  • Page 8: General

    5. GENERAL ● Dimensions : 192(L) x 88.5(W) x 45(D)mm ● Weight : Approx. 350g (batteries included) ● Power source : 1.5V (AAA) battery x 2. ● Low Battery Indication : " BATT " sign appears on the display when the battery voltage drops below accurate operating level.

  • Page 9: Instrument Layout

    6. INSTRUMENT LAYOUT (1) Function Switch (6) COM Terminal (2) LCD Display (7) Select Button (3) V. Hz. Ω Terminal (8) Range Button (4) mA. µA Terminal (9) HOLD Button (5) 10A Terminal...
  • Page 10 (1) Function selection rotary switch The rotary switch selects the function. (2) LCD Display 3999 count LCD with LOW BATTERY indication. (3) Volt /Ohm/Frequency Terminal This is positive input terminal for voltage / ohm / frequency measurement. Use the RED test lead to connect.
  • Page 11 (8) Range Button Press the Range button to selects the manual range mode and turns off the AUTO annunciator and turns on the manual annunciator and changes the full scale range. In manual range mode, each time press Range button (less than one second), the range increments and a new value is displayed.

  • Page 12: Measurement

    7. MEASUREMENT Before proceeding with measurement , read the safety notes. (1) Voltage measurement Insert the BLACK test lead to COM and the RED One to the other terminal. Switch to V function for ACV or DCV function. Use the test lead tip to the circuit and read the reading of display directly.
  • Page 13 (4) Continuity Check Continuity check shares the same configuration with 400.0Ω manual resistance measurement mode, but with buzzer output to indicate continuity. The buzzer generates a 2kHz sound whenever the digit number less than 25Ω. Because the cycle time of measurement is only 50ms, the least significant digit will not display.

  • Page 14: Maintenance

    8. MAINTENANCE Battery replacement : When low battery warning appears, change new batteries as follows : (1) Disconnect the test leads from the instrument and turn off power. (2) Unscrew the case and replace new batteries. (3) Close the case and lock the screw. Cleaning and Storage : WARNING To avoid electrical shock or damage to the meter, do...

  • Page 15: Fuse Replacement

    9. FUSE REPLACEMENT There are 3 fuses on the PCB. 0.5A for mA. Range and 12.5A for 10A range. Another 0.5A for Volt / OHM / frequency range. Open the meter case, then remove and replace the fuse. Only replace with the same specification fuse. FUSE 0.5A / 250V (5 X 20 mm)

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