BOURDONVAC / CAPSULE - Mechanical dial type gauges
Rugged mechanical vacuum gauges
- In mechanical vacuum gauges the pressure is determined directly by recording the force acting on the surface of the diaphragm.
- The readings obtained are independent of the type of gas and the pressure which is to be measured.
- The pressure range for most mechanical dial gauges is approx. from 1000 mbar (atmospheric pressure, 750 Torr) to 1 mbar (0,75 Torr).
- BOURDONVAC gauges
- CAPSULE gauges
BOURDONVAC gauges
BOURDONVAC
The inner part of the BOURDONVAC is a Bourdon tube, which is bent into a circular arc and is connected to the vacuum system.
Due to the effect of the external atmospheric pressure, the end of the tube bends more or less during the evacuation process. This actuates the pointer arrangement which is attached to this point. The corresponding pressure can be read off on a linear scale.
With BOURDONVAC gauges it is possible to roughly determine pressures from atmosphere to 1mbar/torr.
As the mechanism is exposed to local atmospheric pressure, it can be affected by fluctuations in atmospheric pressure.
Those gauges are designed for rough pressure measurement in harsh environments:
- Great process compatibility due to its stainless-steel measuring cell,
- Resistance against vibrations
- IP54 rating
CAPSULE gauges
CAPSULE
CAPSULE gauges operate with a diaphragm connected to a dial.
They contain a hermetically sealed, evacuated and thin-walled diaphragm capsule located within the instrument. As the vacuum pressure reduces the capsule bulges. This movement is transferred via a system of levers to a pointer and the pressure can be read off on a linear scale.
As the measuring cell is hermetically sealed against the outside environment, it is not affected by changes in atmospheric pressure, making it more reliable at pressures below 10 mbar/torr.
- Insensitive to vibrations
- Due to the measuring system being open to the vacuum environment it is less compatible with corrosive media.
As CAPSULE gauges are better to read lower pressures, we offer it with two full scales:
- 1000 to 1mbar (750 to 0.75 torr)
- 100 to 1 mbar (75 to 0.75 torr) with the later giving better resolution at the lower pressures.
It also comes with either:
- a DN 16 ISO-KF flange to connect directly to a vacuum system
- a 10 mm diameter hose nozzle with integrated isolation valve for panel mounting and use on packing machines.
BOURDONVAC
The inner part of the BOURDONVAC is a Bourdon tube, which is bent into a circular arc and is connected to the vacuum system.
Due to the effect of the external atmospheric pressure, the end of the tube bends more or less during the evacuation process. This actuates the pointer arrangement which is attached to this point. The corresponding pressure can be read off on a linear scale.
With BOURDONVAC gauges it is possible to roughly determine pressures from atmosphere to 1mbar/torr.
As the mechanism is exposed to local atmospheric pressure, it can be affected by fluctuations in atmospheric pressure.
Those gauges are designed for rough pressure measurement in harsh environments:
- Great process compatibility due to its stainless-steel measuring cell,
- Resistance against vibrations
- IP54 rating
CAPSULE
CAPSULE gauges operate with a diaphragm connected to a dial.
They contain a hermetically sealed, evacuated and thin-walled diaphragm capsule located within the instrument. As the vacuum pressure reduces the capsule bulges. This movement is transferred via a system of levers to a pointer and the pressure can be read off on a linear scale.
As the measuring cell is hermetically sealed against the outside environment, it is not affected by changes in atmospheric pressure, making it more reliable at pressures below 10 mbar/torr.
- Insensitive to vibrations
- Due to the measuring system being open to the vacuum environment it is less compatible with corrosive media.
As CAPSULE gauges are better to read lower pressures, we offer it with two full scales:
- 1000 to 1mbar (750 to 0.75 torr)
- 100 to 1 mbar (75 to 0.75 torr) with the later giving better resolution at the lower pressures.
It also comes with either:
- a DN 16 ISO-KF flange to connect directly to a vacuum system
- a 10 mm diameter hose nozzle with integrated isolation valve for panel mounting and use on packing machines.
