Thyracont Vakuum-Transmitter VHS, Pirani/Heißkathode, 1000 bis 5e-10 mbar, digital / Thyracont vacuum transducer VSH, Pirani/hot cathode, 1000 to 5e-10 mbar, digital
Thyracont Vakuum-Transmitter VSH, Pirani/Heißkathode, 1000 bis 5e-10 mbar, digital / Thyracont vacuum transducer VSH, Pirani/hot cathode, 1000 to 5e-10 mbar, digital
Thyracont VSM Vakuum-Transmitter, Pirani/ Kaltkathode, 1000 bis 5e-9 mbar, digital / Thyracont VSM vacuum transducer, Pirani/cold cathode, 1000 to 5e-9 mbar, digital
VSH Vakuumtransmitter Abmessungen / VSH vacuum transducer dimensions

VSH Vacuum Transducer ● Pirani/ Hot Cathode ● 1000 to 5e-10 mbar

€ 1,214.00 – € 1,585.00 excl. VAT and transport costs

The digital combination vacuum transducer VSH (Pirani/hot cathode) measures absolute pressure from atmospheric pressure to ultrahigh vacuum.

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The digital combination vacuum transducer VSH (Pirani/hot cathode) measures absolute pressure from atmospheric pressure to ultrahigh vacuum.

Overview Smartline vacuum transducers:

  • Variety of interfaces: Digital RS485 interfaces plus 0-10 V output signal, EtherCAT or PROFINET. The Bluetooth adapter SLKBT enables wireless communication
  • Industry 4.0: All Smartline transducers offer a series of parameters for preventive maintenance. PROFINET transducers are able to communicate with OPC UA servers and support MRP
  • Exchangeable sensor heads: Is an easy job, independent of the gauge manufacturer and without programming effort. If the existing cables shall further be used, suitable adapters (e. g. FCC68) will be available.
  • Optional display: Large LCD display (exc. EtherCAT, PROFINET)
  • Easy adjustment: Readjustment of zero and atmosphere by push-button or interface
  • LEDs: For device status and switch points
  • Scaleable output characteristics: The 0-10 V output signal can be scaled according to the required output characteristics. Thus an exchange of existing vacuum gauges is easily, independent of the manufacturer and without programming effort possible. If the cable needs to remain but the transducer should be changed adapters (e. g. FCC68) are available.
  • UHV suitable: Metal sealed stainless steel sensor cell,suitable for UHV applications (He leackage rate <5e-10 mbar l / s)
  • Relay switch points: Two independent, potentialfree relay switch points (exc. EtherCAT, PROFINET)
  • Robust: Resistant, EMC compatible metal housing, protection class up to IP54
  • Controller: Expansion with 2 channel controller VD12 or 4 channel controler VD14 possible
  • VacuGraphTM software: For visualisation, analysis and storage of measuring data

Overview VSH vacuum transducer with combination sensor Pirani/hot cathode:

  • Wide measuring range: Wide range combination sensor Pirani / Bayard Alpert
  • Precise: Excellent accuracy and repeatability
  • Blowing resistant: Bayard Alpert with blowing resistant, yttrium coated double filament
  • Robust: Longterm tests confirm excellent life time: up to 100,000 shock venting cycles
  • Long-living: Switch-on of the hot cathode at lower pressure enhances durability
  • Intelligent: Automatic control of the hot cathode by the Pirani
  • Correct pressure readings: Due to seperate gas correction factors for Pirani and hot cathode

Do you have questions regarding our VSH vacuum transducers with Pirani/hot cathode sensor? We will be pleased to assist.

Attention: If the Smartline transducer is used without PLC, an SLN4 power supply will be required.

→ Go to all vacuum transducers of the Smartline | → Go to accessories for all Smartline vacuum transducers

 

Weight 1.1 kg
Dimensions 25 × 16 × 9 cm
Measurement principle

Gas dependency

depending on gas type
Measurement range mbar

Measurement range Torr

750 – 5e-10 Torr
max. overload

4 bar abs.
Accuracy

1000 … 10 mbar: ca. 30 % f. r. | 10 … 1e-8 mbar: 10 % f. r.
Repeatability

10 – 1e-2 mbar: 2 % f. r. | 1e-2 – 1e-8 mbar: 5% f. r.
Materials in contact with vacuum

Stainl. steel 1.4307, tungsten, nickel, glass, platinum, iridium, yttria oxide
Filaments / anodes

Bayard Alpert: Yttria coated iridium
Emission current

9 μA, 100 μA, 1.0 mA, 2,0 mA
Degas method

Ohmic heating of the anode
Response time

50 ms (switching of emission current < 2s)
Operating temperature

5…60 °C (Profinet -5… +50 °C)
Storage temperature

-40…+65 °C
Bake out temperature

Voltage supply

20 – 30 VDC
Power consumption

Max. 8 W, add. 1 W f. Degas, 0.8 W f. Relais/LCD, add. 1.6 W f. Profinet
Output Signal SL

0 – 10 VDC, min. 10 kΩ, measuring range 1,219 – 8,6 VDC, log. except EtherCAT, Profinet
Serial interface

Switching output

2x relay, pot. free, 50 VAC / 2 A or 30 VDC / 2 A, max. 60 VA, except EtherCAT and Profinet
Electrical connection

Vacuum connection

DN 25 ISO-KF (VSH87), DN 40 ISO-KF (VSH88), DN 40 CF-F (VSH89)
Material Number:

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Dimensions

141 x 69 x 48 mm (VSH88)
Protection class

Weight

475 g (VSH88)
Smartline - product brochure
VacuGraph software (free Lite-Version)
Data sheets, manuals, 3D models and more

Smartline Product Family


Smartline digital Vacuum gauges
How can I set parameters like switching points or gas type correction factors?

The Smartline vacuum transducers are programmed via their RS485 interface. They respond e. g. on type requests, measurement requests, adjustment commands and commands forsetting gas type correction factors. It is also possible to program both relay switching points of the gauge via RS485.
Is the measuring signal independent of the gas type within the rough vacuum range?

Yes, in the pressure range above 15 mbar.
Is the Pirani sensor protected against pollution and dirt?

All Thyracont Pirani sensors are fitted with a cover which protects against basic condensation and pollution. If the sensors are used in an extremely polluted environment, it is advised to additionally either use an extension pipe, an elbow fitting, a cooling trap or a seal ring with a sinter filter. We recommend keeping the transducer switched on permanently, as a hot Pirani filament is less susceptible to contamination.
Is it possible to clean the Pirani sensor?

Depending on the type and intensity of the pollution, it is feasible to clean the sensor with isopropanol. To do so, you need to fill the measuring cell completely with isopropanol and let it rest for a few minutes. After removing the fluid, the measuring must dry out completely. Please note that if e.g. oil debris is baked onto the filament, it is very difficult or even impossible to clean.
Do I have to mount the instrument in a specific position?

In principle, the devices can be installed in any position. You will achieve the most accurate measurement results if the flange of the device is horizontal, as the devices have been calibrated in this position. Mounting the sensor from below is not recommended, as condensation and dirt can collect in the measuring cell.
How often do I need to recalibrate the vacuum transducer?

The period between calibrations depends on the specific application. In particular, deposits and dirt in the sensor, but also use under extreme temperature conditions, can make readjustment necessary. For quality assurance, we recommend sending the devices in for calibration every one or two years. We offer a factory calibration (article no. ADJCERT) or a DAkkS calibration (article no. DKDCERT).
How can I change the sensor heads of the transducers?

The replaceable, pre-adjusted sensor heads of the Smartline transmitters can be replaced quickly and easily by the user to ensure consistently high system availability. To do this, the fixing screws of the sensor head are loosened, the sensor unit replaced and the screws refastened. After a warm-up time of approx. 15 minutes, press the Adjust button. The sensors and electronics are now automatically adjusted to each other and the transmitter is ready for operation.
When to use a hot cathode and when to use a cold cathode?

Hot cathode transducers are mainly used for measurements where high precision (<15%) is required. We also recommend our hot cathode for measurements in the ultra-high-vacuum range down to 5e-10 mbar. Cold cathode transducers are more robust in numerous applications and therefore particularly interesting for applications where the sensor is exposed to dust, oil or other pollution. The cold cathode measuring cell can be patrially dismantled and cleaned (e.g. with Scotch Brite). Compared to the VSH, the VSM has a lower, but for a cold cathode very good accuracy of <25%. To ensure high system availability, the sensor head of both transmitters can be easily replaced if necessary.
Is it possible to clean the sensor head of the VSM?

Yes, it is possible to partly dismantle the sensor head and to carefully clean it with Scotch Brite. Thereby, metallic debris and minor pollution can be easily removed.
Is it possible to clean the sensor head of the VSH?

Hot cathode sensors are not suited for cleaning.

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