Universal electrometric voltmeter В7Э-42
The В7Э-42 voltmeter is designed to measure direct currents, voltages, charges and resistances. Voltmeter В7-42Э allows you to connect simultaneously or separately up to 16 signal sources.
The В7Э-42 voltmeter provides for automatic selection of intent subranges, the ability to automatically compensate for background signals, mathematical processing of measured signal parameters using five programs, memorizing 20 measured values for a programmable time interval, and calculating the error of the current measurement value.
В7Э-42 has an analog output for connecting a recorder or LF oscilloscope. A self-test mode is provided to facilitate troubleshooting during setup and repair. In the В7Э-42 device, errors are automatically corrected. It is used in laboratory and workshop conditions.
Main technical characteristics of the В7Э-42 device:
|Physical quantity||Measurement range|
|Current||10-15 … 0.1 А|
|Voltage||5‧10-5 … 200 V|
|Charge||5‧10-16 … 10-5 С|
|Resistance||1… 1018 Ohm|
Input impedance 1015 Ohm.