Televac MX7M Cold Cathode Ionization Gauge

Televac MX7M Active Cold-Cathode Ionization Gauge

The Televac MX7M Active Cold-Cathode Ionization Gauge—featuring the cleanable triple-inverted magnetron 7M sensor—is a high-performance vacuum instrument that measures ultra-high vacuum pressures from approximately 5 × 10⁻¹¹ Torr to 1 × 10⁻² Torr. With integrated electronics, a vibrant OLED display, configurable analog outputs, and modern digital communications, this gauge is designed for reliable, precise UHV measurement in demanding environments.

Why the MX7M Stands Out

• Exceptional UHV range: Measures from ~5 × 10⁻¹¹ Torr up to ~1 × 10⁻² Torr—deep into the ultra-high vacuum zone. :contentReference[oaicite:0]{index=0}
• Integrated OLED interface: Two-color OLED display with touch-capacitive controls for menu navigation and pressure readouts. :contentReference[oaicite:1]{index=1}
• Flexible analog output: Configurable 0–10 V output (linear, linear-by-decade, logarithmic) with 16-bit resolution. :contentReference[oaicite:2]{index=2}
• Modern digital communications: Supports RS-485 and micro-USB; optional Ethernet/IP via gateway integration. :contentReference[oaicite:3]{index=3}
• Process automation ready: Two programmable set-points (one open collector, one relay) enable integration with PLCs or interlocks. :contentReference[oaicite:4]{index=4}
• Rugged, cleanable design: Cold-cathode sensor is cleanable, supports bake-out up to 250 °C, and resists contamination. :contentReference[oaicite:5]{index=5}
• Compact and configurable: Available in KF16, KF25, KF40, and CF40 flange styles to accommodate your vacuum system. :contentReference[oaicite:6]{index=6}

Technical Highlights

• Operating Range: 5 × 10⁻¹¹ to 1 × 10⁻² Torr. :contentReference[oaicite:7]{index=7}
• Power & Interface: 22–26 V DC, ≤8 W power consumption. :contentReference[oaicite:8]{index=8}
• Set Points: One open-collector MOSFET (SP1), one relay (SP2); suitable for alarms or interlocks. :contentReference[oaicite:9]{index=9}
• Accuracy & Speed: ±30% from 1 × 10⁻⁹ to 1 × 10⁻³ Torr; response ≤50 ms. :contentReference[oaicite:10]{index=10}
• Temperature Tolerance: Operates 0–50 °C; electronics removable to bake out to 250 °C. :contentReference[oaicite:11]{index=11}
• Calibration Options: Factory calibrated to NIST standards; ISO 17025 traceable calibration optional. :contentReference[oaicite:12]{index=12}

Applications Where MX7M Excels

• UHV systems for R&D and analytical tools such as PVD/CVD, electron microscopy, mass spectrometry.
• Vacuum furnace and heat-treat monitoring covering the full range when paired with MX2A or MX4A. :contentReference[oaicite:13]{index=13}
• Automated vacuum control systems integrating via analog outputs, digital set points, or networked RS-485/Ethernet/IP.
• Cleanroom or heavily cycled systems requiring low contamination and easy sensor cleaning.

Integration & System Pairing

The MX7M can be used standalone or integrated with other gauges for full-range coverage. Pair it with the MX2A or MX4A to extend measurement up to ~1000 Torr. Use the MX200 Controller to consolidate readings, manage outputs, and automate set-point logic.

Best Practices for Use

• Start under vacuum: Avoid operating at pressures >1 × 10⁻² Torr to prevent sensor overload. :contentReference[oaicite:14]{index=14}
• Clean periodically: The cold-cathode sensor is cleanable—maintaining it enhances sensitivity and extends life.
• Use calibration wisely: While factory calibrated, consider periodic ISO or NIST traceable recalibration in critical systems. :contentReference[oaicite:15]{index=15}

FAQs

What is its lowest measurable pressure?

Down to approximately 5 × 10⁻¹¹ Torr, depending on your system and conditions. :contentReference[oaicite:16]{index=16}

Does it communicate digitally?

Yes—you can control and read the gauge via RS-485 or micro-USB, or connect to Ethernet/IP using an optional gateway. :contentReference[oaicite:17]{index=17}

Can it automate vacuum control systems?

Absolutely. Two configurable set points (MOSFET and relay) pair with analog outputs and digital comms, enabling seamless integration into automated process flows.

Why Buy from High Vac Depot?

High Vac Depot offers expert support for vacuum system design—from cooling ovens to UHV instrumentation. We stock gauges, controllers, accessories, and calibration services, and help configure the right stack for your measurement needs.

Get a Quote or Ask an Expert

Need system recommendations, pricing, or compatibility checks for the MX7M? Contact High Vac Depot—we’ll tailor the setup to your UHV application.

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Additional information

Brand

Televac

Fredericks’ Televac® and ETI vacuum measurement brands offer the most innovative and proven vacuum technology on the market.

Televac MX7M Cold Cathode Ionization Gauge DataSheet