The PENNINGVAC PTR 90 RN combines an inverted-magnetron cold cathode with a Pirani sensor to follow pump-down from atmosphere into high vacuum. Its standard measurement range is 1 × 10⁻⁹ to 1000 mbar.
Manufacturer manual illustration of the PTR RN family, showing FCC68 and D-sub connector arrangements.
Part of the Leybold PENNINGVAC high-vacuum gauges family. Compare the range and other model options.
Tell us the configuration and quantity you need. Include your process requirements if you would like help with selection.
View quote listThe PENNINGVAC PTR 90 RN combines an inverted-magnetron cold cathode with a Pirani sensor to follow pump-down from atmosphere into high vacuum. Its standard measurement range is 1 × 10⁻⁹ to 1000 mbar.
| Measurement principle | Cold cathode / Pirani combination |
|---|---|
| Pressure range | 1 × 10⁻⁹–1000 mbar |
| Range conditions | Nitrogen; standard Leybold analogue output or documented digital version |
| Typical accuracy | ±30% of reading up to 1 × 10⁻³ mbar; ±15% to 10 mbar |
| Vacuum connection | DN25 KF, DN40 KF or DN40 CF |
| Signal / interface | Analogue voltage or separate RS232 / RS485 versions |
| Supply voltage | 15–48 V DC nominal ±10%; limited-energy supply |
| Maximum power consumption | 4 W |
| Operating temperature | +5 to +60 °C, indoor use |
| Protection rating | IP40 |
| Bakeout temperature | 150 °C with electronics removed |
Cold-cathode ionisation is gas-dependent. The quoted nitrogen performance does not apply unchanged to other gases or mixtures. Contamination, operating pressure and ignition behaviour affect service requirements. Specify the gas load and expected operating pressure rather than choosing solely by the lowest displayed pressure.
The PTR 90 RN uses its Pirani sensor at higher pressures and includes a filament striking aid for cold-cathode ignition. This gives broad coverage in one transmitter; the accuracy is not constant over its entire range.
Choose the required transfer function and connector for an analogue gauge: FCC68/RJ45 and 9-pin D-sub versions are documented. Digital RS232 and RS485 are separate variants with a 9-pin D-sub. Setpoint, relay and status functions depend on the full part number. Use the corresponding analogue or digital manual; do not treat an RJ45 gauge connection as Ethernet.
The brochure lists GRAPHIX compatibility. Match the gauge variant, controller input, scaling and cable. Browse GRAPHIX ONE, TWO and THREE. Passive COMBIVAC PR-sensor inputs are a different arrangement and must not be substituted for an active PTR connection.
DN25 KF, DN40 KF and DN40 CF versions have different mounting envelopes and masses. The manual lists approximately 350, 380 and 630 g respectively. Measuring tubes and electronics are serviceable with matching replacements. The quotation should identify the gauge, connection hardware, controller or DC supply, cable and any calibration requirement separately.
Compare PTR 225 RN for a dedicated cold-cathode high-vacuum measurement point.
Specification references: analogue 301106080_002_C6, pp9–18, and digital 301106082_002_C5, pp12–15, September 2025; brochure 3610 0360 02. Use the instructions matching the supplied part number and revision.
For a PENNINGVAC PTR 90 RN quotation, send the required pressure range and units, process gas and vapours, connection, ambient and bakeout conditions, output or communication protocol, cable length and quantity. Include the existing gauge/controller part numbers, required switching functions, power supply and calibration test points. Girovac will confirm the configuration, included equipment, price and availability.
Browse vacuum gauges and instrumentation, compare controller options or request gauge calibration support.
| Manufacturer | LEYBOLD |
|---|---|
| Equipment type | Vacuum gauges & instrumentation / High & Ultra-high Vacuum Gauges |
| Measurement principle | Cold cathode / Pirani combination |
| Pressure range | 1 × 10⁻⁹–1000 mbar |
| Vacuum connection | DN25 KF, DN40 KF or DN40 CF |
| Signal / interface | Analogue voltage or separate RS232 / RS485 versions |
| Maximum power consumption | 4 W |
| Range conditions | Nitrogen; standard Leybold analogue output or documented digital version |
| Typical accuracy | ±30% of reading up to 1 × 10⁻³ mbar; ±15% to 10 mbar |
| Supply voltage | 15–48 V DC nominal ±10%; limited-energy supply |
| Operating temperature | +5 to +60 °C, indoor use |
| Protection rating | IP40 |
| Bakeout temperature | 150 °C with electronics removed |
Send the gauge model, pressure range and process details for calibration, replacement or compatibility advice.
Confirm the range, pressure reference, connection, electrical output and whether cables, a controller or calibration are included.
Availability, lead time and the applicable warranty are confirmed for your quotation. A catalogue listing does not reserve stock.
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Leybold PENNINGVAC PTR 90 RN Vacuum Gauge
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Compare the stated conditions as well as the values. A missing specification is not a zero rating; confirm suitability with Girovac.
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