Я4С-97: Difference between revisions
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The '''Я4С-97''' is a digital multimeter plug-in for [[Soviet 7000-series clones]]. It is roughly analogous to the Tek [[7D13]]. | The '''Я4С-97''' is a digital multimeter plug-in for [[Soviet 7000-series clones]]. It is roughly analogous to the Tek [[7D13]]. | ||
Latest revision as of 15:15, 20 February 2022
The Я4С-97 is a digital multimeter plug-in for Soviet 7000-series clones. It is roughly analogous to the Tek 7D13.
Significant differences to the 7D13 include:
- 2 kV and 20 kV ranges using an external 100:1 probe
- mode and range switches are separate
- probe connector is a Soviet 8-pin rectangular type
- all modes except current need a special probe
Key Specifications
| Voltage ranges | 2 V to 20 kV in decade steps |
|---|---|
| Current ranges | 2 mA to 2 A in decade steps |
| Resistance ranges | 200 Ω to 2 MΩ in decade steps |
| Temperature range | −40 to 120 °C |
The internal architecture of the Я4С-97 seems to be very similar to the 7D13, even down to the 2 kHz clock and the transistor-based temperature sensor (which uses a transistor type 2T3316-1 as the probe). However, there is no DAC included for the readout, because the mainframe readout interface is digital, not analogue.
Links
Pictures
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Front
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Three-quarter view
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Analogue board
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Switch wiring detail
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Temperature readout
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Voltage and resistance probe
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EHT probe (2 kV and 20 kV)
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Temperature probe
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Replacement temperature sensor
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Probe connector
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Probe plugged in
