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- Very low temperature drift
- Low dc input bias current-10pA
- Measures voltage down to 1µV
- Automatic polarity indication
- Recorder facility (optional)
Introduction
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 3½ 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 characteristics.
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 instrument for
voltages upto 19.99V DC. (Hall Effect, Four Probe, Thermoluminescence,
Transistor and Diode characteristics etc.)
Specifications
| Range |
1mV,
10mV, 100mV, 1V & 10V with 100% over-ranging. |
| Resolution |
1µV |
| Accuracy |
±0.2%
±1 digit |
| Stability |
Within
±1 digit |
| Input
Impedance |
>1000
Mohm (10Mohm 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 |
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