Digital Pirani gauge is an instrument used to measure vacuum pressure within the range of 1.0x10-1 ~ 1.0x105 Pa (Air, Nitrogen). Wireless vacuum gauge comes with analog voltage output, Pa/mBar/Torr display, 100ms response time, ideal for analytical instruments, vacuum furnaces, vacuum packaging vacuum coating, and low vacuum pump testing.
Features
- Digital Pirani gauge features a high-brightness LED segment display with selectable units (Pa, mBar, Torr), along with smart function keys for calibration and control point settings.
- It integrates wireless data transmission, analog output and RS485 communication (contact us), making it suitable for networking and remote monitoring with 16-bit code address settings.
- Wireless Pirani vacuum gauge has a metal enclosure for excellent electromagnetic interference protection and uses stainless steel measuring chambers, ensuring high cleanliness and compatibility with vacuum environments.
Specifications
Model |
ATO-CX-PRN12 |
Measuring Range |
1.0x10-1 ~ 1.0x105 Pa (Air, Nitrogen) |
Accuracy |
1.0x10-1 ~ 104 Pa: +/-15%; 1.0x104 ~ 1.0x105 Pa: +/-50% |
Repeatability |
1.0x10-1 ~ 1.0x103 Pa : +/-2%; 1.0x103 ~ 1.0x105 Pa: +/-5% |
Withstand Pressure (Absolute Pressure) |
1.0x105 Pa |
Response Time |
100ms |
Filament Baking Temperature |
Up to 150℃ (up to 250℃ for Metal Vacuum Flange) |
Ambient Temperature (Operating Temperature) |
0℃ ~ +45℃ |
Ambient Temperature (Storage Temperature) |
-40℃ ~ +75℃ |
Ambient Humidity (Operating Humidity) |
5... 85%, Non-condensing |
Signal Output |
(Default) Analog Output +2.286V ~ +10.0V, Minimum Impedance 10Ω |
RS485 (Non-isolated), Baud Rate 9600 bps; Connected to Vacuum Controller WGC150 (RS485 output is not included. Please contact us if you need it or other outputs.) |
Power Supply |
+24V DC (±20%)/1.5A, via DBSub9 Plug |
Maximum Power Consumption |
2.0W Max. |
Protection Level |
IP40, IEC529 |
Vacuum System Connection |
DN 16 ISO-KF (Default); Others (Contact Us) |
Material In Contact With Vacuum |
SS304.SS316L, Kovar 4J50, Filament, Feed-Through Glass |
Dimension (Unit: mm)
![Pirani gauge dimension](/Content/Images/uploaded/product/pirani-vacuum-gauge-dimension.jpg)
Pin Definition
D-SUB 9 Core Plug (Female) Wiring, Welding Side
![Pirani gauge pin definition](/Content/Images/uploaded/product/pirani-vacuum-gauge-pin-definition.jpg)
Communication with Computer
The PRN12 vacuum gauge is connected to the computer via a plug, cable and converter.
Please install the GAUGE READER 3.0 software on regular WIN XP, WIN7, WIN8 and WIN10.
![Communication between Pirani vacuum gauge and computer](/Content/Images/uploaded/product/pirani-gauge-with-computer.jpg)
Applications
![Pirani vacuum gauge applications](/Content/Images/uploaded/product/pirani-gauge-applications.jpg)
Tips: What is a digital Pirani vacuum gauge?
A digital Pirani vacuum gauge is an advanced instrument used to measure vacuum pressure in various industrial and scientific applications. It combines the traditional Pirani gauge's principles with digital technology to provide accurate and reliable pressure readings.
The Pirani gauge operates based on the measured thermal conductivity of the gas. It consists of a heated filament and a temperature sensor. As the filament heats up, the thermal conductivity of the surrounding gas affects the filament's temperature, which in turn influences its electrical resistance. This change in resistance is then used to determine the gas pressure.
In a digital Pirani vacuum gauge, this measurement process is enhanced by digital electronics. The analog signal from the filament is converted to a digital format using an analog-to-digital converter (ADC). A microcontroller or digital signal processor processes this digital signal to produce precise pressure readings displayed on a digital interface. The digital nature of the gauge allows for easy calibration, data logging, and integration with computer systems for automated control and monitoring.
Digital Pirani gauges are favored for their accuracy, stability, and ease of use, making them suitable for applications in semiconductor manufacturing, vacuum research, and other fields requiring precise vacuum measurement.