4½ DIGITS 19999 COUNTS DIGITAL MULTIMETER
MODEL - DMM 90 (13 functions 29 ranges)
Features :
• DMM-90 has a unique feature wherein the LCD
display shows the terminals where the test leads
are to be inserted to avoid wrong connection &
damage to the meter.
• Low Power Consumption CMOS double integration
A / D transform integrated circuit
• Auto Zero Calibration
• Auto Polarity display
• Selected Range displayed on LCD
• Instant Continuity Buzzer.
• “DATA - HOLD” switch freezes reading.
Low Battery & Over range indication.
General Specifications :
• Sensing : Average Sensing.
• Display: 4½ digit ( LCD. With display height 53mm and digit height 20mm
and function / units sign annunciators.
• Over range indication: Highest digit of (1) or (-1) is displayed.
• Low battery: The “ ”sign is displayed when the
battery voltage drops below the operating Voltage.
• Polarity: Automatic (-) negative polarity indication,
•
Measurement rate: 2.5 measurements per second,
• Operating Temperature : 0°C to 50°C,<70% R.H
• Storage Temperature : -20°C to 60°C,<80% R.H. (With battery removed).
• Accuracy : Accuracy specifications at 23 ± 5°C;<75% RH.
• Auto Power Off : The meter will shut off automatically about 15 minutes after power is ON if the meter is not in use.
• Power: Single 9 V Battery.
• Dimension : 179(L) x 88(W) x 39(H)mm.
• Weight : Approx. 380 gms. (including battery)
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