Digital Microvoltmeter ,Model -DMV -001


 

  • Very low temperature drift
  • Low dc input bias current-10pA
  • Measures voltage down to 1µV
  • Automatic polarity indication
  • Recorder facility (optional)

Digital Microvoltmeter, DMV-001 is a very versatile multipurpose instrument for the measurement of low dc voltage. It has 5 decade ranges from 1mV to 10V with 100% over-ranging. For better accuracy and convenience, readings are directly, obtained on digit DPM (Digital Panel Meter)

This instrument uses a very well designed chopper stabilized IC amplifier. This amplifier offers exceptionally low offset voltage and input bias parameters, combined with excellent speed character-istics.

Filter circuit is provided to reduce the line pickups of 50Hz. All internal power supplies are IC regulated.

APPLICATIONS :

  • DC voltage measurements from high impedance sources; output of photomultiplier tubes, photocells, radiation detector etc.
  • Very low voltage measurement, direct measurement of thermo–couple output to read temperatures with a resolution of 1/40th of a degree (Chromel-Alumel)
  • General purpose laboratory instru-ment for voltages upto 19.99V DC
  • (Hall Effect, Four Probe, Thermoluminescence, Transistor and Diode characteristics etc.

SPECIFICATION :

Range

1mV, 10mV, 100mV, 1V & 10V with 100% over-ranging.

Resolution

1µV

Accuracy

±0.2%  ±1  digit

Stability

Within ±1 digit

Input Impedance

>1000MΩ  (10MΩ  on 10V range)

Display

3½ digit, 7 segment LED with autopolarity and decimal indication

Power Supply

220V ±10%, 50Hz

Weight

2.5Kg

Dimensions

245mm X 280mm X 120mm