Portable Digital Vacuum Meters & Data Loggers
- Measurement
- Absolute pressure; selected newer models also offer relative measurement
- Compact piezo version
- 1600–1 mbar absolute
- Compact Pirani version
- 100–0.0005 mbar absolute
The GRAPHIX THREE provides 3 active vacuum-gauge channels with a touchscreen display, measurement logging and assignable switching functions. Use it for three measurement points or complementary gauge ranges within one display and control unit.
Manufacturer GRAPHIX family photograph with three channels displayed; GRAPHIX ONE has one channel and TWO has two.
Part of the Leybold GRAPHIX and COMBIVAC controllers 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 GRAPHIX THREE provides 3 active vacuum-gauge channels with a touchscreen display, measurement logging and assignable switching functions. Use it for three measurement points or complementary gauge ranges within one display and control unit.
| Measurement channels | 3 active-gauge channels |
|---|---|
| Display range | 1 × 10⁻¹⁰–2000 mbar; actual measurement range depends on connected sensor |
| Compatible sensor families | Selected THERMOVAC, PENNINGVAC, CERAVAC and IONIVAC active transmitters |
| Display | 3.5-inch TFT touchscreen |
| Switching functions | 6 freely assignable relay setpoints; sensor-dependent adjustment range |
| Relay contact rating | Maximum 1 A and 30 V AC / 30 V DC, resistive load |
| Interfaces | RS232 / RS485; front USB for storage |
| Mains supply | 100–240 V AC, 50/60 Hz; IEC C14 inlet |
| Power consumption | <100 W |
| Dimensions (W × H × D) | 106.4 × 128.4 × 174 mm; allow up to 230 mm installation depth with connectors |
| Operating temperature | +5 to +45 °C at sea level; +5 to +30 °C at 2000 m |
| Protection rating | IP20; indoor use |
GRAPHIX reads active transmitters, whose electronics provide a measurement signal. Its display range is not the accuracy or range of every connected gauge. Choose each sensor for pressure, gas, process compatibility and connection, then match its output and cable to the controller.
The manufacturer documentation identifies THERMOVAC RN, PENNINGVAC RN, CERAVAC CTR 101 and IONIVAC ITR 90 families among suitable options. Compatibility is conditional on the exact gauge output, controller setup and appropriate cable; it is not a universal connection guarantee for every suffix or protocol.
Display pressure numerically or graphically, log measurements internally or to suitable USB storage, and assign the six relay functions to the available channels. RS232/RS485 supports system integration. Gauge-dependent functions include ITR degassing and CTR zero adjustment. The pressure-rise test supports leak-rate assessment with the entered vessel volume and suitable measurement conditions.
The 100–240 V AC input is suitable for a correctly connected UK 230 V, 50 Hz supply. Specify a compliant UK mains lead; the brochure package describes EURO and US leads, so a UK plug must not be assumed included. Order the controller, compatible gauges, correct sensor cables and any rack/panel mounting arrangement explicitly. The instrument can be used on a bench or mounted in a rack or panel.
Model references are 230680V01 (ONE), 230681V01 (TWO) and 230682V01 (THREE). These identify controller channel counts; they do not include a complete set of gauges. Compare GRAPHIX ONE, GRAPHIX TWO. For passive sensor heads, see COMBIVAC CM 51 or CM 52.


Specification references: GA300550402_002_C2, April 2017, pp16–22; brochure 3610 0228 02; Leybold measurement catalogue pp58–59. Use the instructions matching the supplied part number and revision.
For a GRAPHIX THREE 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 |
| Measurement channels | 3 active-gauge channels |
| Display range | 1 × 10⁻¹⁰–2000 mbar; actual measurement range depends on connected sensor |
| Compatible sensor families | Selected THERMOVAC, PENNINGVAC, CERAVAC and IONIVAC active transmitters |
| Display | 3.5-inch TFT touchscreen |
| Switching functions | 6 freely assignable relay setpoints; sensor-dependent adjustment range |
| Relay contact rating | Maximum 1 A and 30 V AC / 30 V DC, resistive load |
| Interfaces | RS232 / RS485; front USB for storage |
| Mains supply | 100–240 V AC, 50/60 Hz; IEC C14 inlet |
| Power consumption | <100 W |
| Dimensions (W × H × D) | 106.4 × 128.4 × 174 mm; allow up to 230 mm installation depth with connectors |
| Operating temperature | +5 to +45 °C at sea level; +5 to +30 °C at 2000 m |
| Protection rating | IP20; indoor use |
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.
What to check in your quotation · Delivery · Returns and faults
Leybold GRAPHIX THREE Vacuum Gauge Controller
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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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