# Digital Pirani Vacuum Gauge VTRD-DTV

> Original page (HTML): https://vaclab.ru/measurement/vacuum_gauges/pirani_dtv
> Markdown version: https://vaclab.ru/measurement/vacuum_gauges/pirani_dtv.md
> Manufacturer: LLC "Laboratory of Vacuum Technologies Plus" (LVT), vaclab.ru

[Vacuum gauges SOFTWARE](https://vaclab.ru/files/Setup.exe)

**To download the program click on the blue icon**
**[ You can use our software to connect vacuum gauges ]**
[DOWNLOAD THE MANUAL](https://vaclab.ru/files/rukovodstvo_vakuum.pdf)

Digital vacuum gauge converts absolute pressure in the range 0.1 to 105 Pa into a digital signal. For pressure conversion a Pirani-type sensor DTV-01 is used. RS-485 digital interface, ModBUS RTU protocol.

Measurement principle makes this gauge a highly reliable device that would function in very noisy environments and keep the sensor filament safe and the pressure data correct. It measures gas pressure in the range from 0.1 and up to 104 Pa with relative error that doesn't exceed 10%. The gauge has 1000 V isolation on power and data lines and keeps function in environments with strong impact noise or RF strays. Unlike other sensors that implement analog circuitry to convert pressure into electric signal, VTRD implements fully digital priciple of measurement.

Full compatibility of connection sizes and interlocking connectors. RS-485 digital interface, ModBUS RTU protocol.

For PMT-6-3 type sensors that have not been produced since 1991, we offer another type of vacuum gauge [VTRD-PMT](/pirani_dtv).

**Entered in the register of measuring instruments. Registration number 81993-21.**

[**Is included in the State Information System of Industry register of the Ministry of Industry and Trade of RUSSIA.**](https://gisp.gov.ru/goods/#/product/3332504)****

Operating instructions are available upon request.

## Technical specifications

- Voltage, V: 18..36
- Pressure measurement range,Pa: from 1·10?? to 1·10?
- Sensor type: DTV-01
- Interface: RS-485
- Data transfer protocol: ModBus RTU
- Data transfer rate, bps: 9600, 19200, 38400, 57600
- Operating pressure range, Pa: from 1·10-2 to 1·10?
- Stabilization precision, %, not worse: 10
- Dimensions *(Length x Width x Height),  mm, not more than: no more 136 ? 55 ? 60
- Weight, kg: no more 0,25