Part Numbers: 2-8950-KF16, 2-8950-KF25, 2-8950-KF40, 2-8950-CF40
Compatible With: MX Active Gauge EthernetIP Gateway
Features and Benefits:
- Highly contamination resistant cold cathode ionization gauge design
- All metal seals leading to low outgassing
- Compact design
- Color OLED display
- Configurable 0 to 10 V analog output
- Set point relay and open connector for process control
- RS-485 and USB communications standard
- EthernetIP communications available via the MX Active Gauge EIP Gateway
- Easily cleaned ionization gauge for extended sensor lifetime
- ISO 17025 accredited and NIST traceable calibrations optional
- Rapid turn-around for calibration and service
The new Televac® MX7M is an active vacuum gauge (also called an analog vacuum gauge or a digital vacuum gauge) featuring the new Televac® 7M cold cathode ionization gauge, which has a wide operating range of 5*10-11 to 1*10-2 Torr (if you want to convert this to another unit of measurement check out our handy unit converter). This is the only cleanable cold cathode on the market which measures into the 10-11 Torr range. The new triple inverted magnetron design improves the overall accuracy of the vacuum gauge by improving linearity while significantly decreasing the stray magnetic field.
This vacuum gauge has all-metal seals, minimizing outgassing while maintaining a compact overall design. The MX7M cold cathode gauge also has a variety of features including a configurable 0 to 10 V DC analog output, RS-485 communications (EthernetIP optional), two programmable set points (relays and open collectors), and a bright OLED display with a 180° viewing angle.
All features of this cold cathode gauge are accessible through the display and touch controls or through the digital communications. Note that we also have an EthernetIP gateway for this active gauge which enables EthernetIP communication with a Rockwell Automation® Allen-Bradley® PLC. Combining this cold cathode gauge with a rough vacuum gauge such as the MX2A thermocouple active vacuum gauge or MX4A convection active vacuum gauge will provide full range measurement from 5*10-11 Torr to 1000 Torr (slightly above atmosphere).
MX7M Cold Cathode Active Vacuum Gauge
D-Sub 15, 15 Conductor Cables (Flying Leads)
D-Sub 15, 6 Conductor Cables (Flying Leads)
Wall Power Supply
Replacement Sensors and Parts
| Operating Range | 5*10-11 Torr to 1*10-2 Torr |
| Display | OLED |
| Digital Communications | RS-485, USB (micro) |
| Analog Output | Configurable 0 to 10 V DC |
| Programmable Set Points | 2 |
| Set Point 1 | Open collector |
| Set Point 2 | Relay |
| Supply Voltage | 22 V DC to 26 V DC |
| Maximum Power | 8 W |
| Calibration Medium | Dry air or nitrogen |
| Overpressure | 150 PSI |
| Digital Output Resolution | 3 significant digits with exponent |
| Analog Output Resolution | 16 bits |
| Operating Temperature | 0 °C to 50 °C |
| Storage Temperature | -20 °C to 60 °C |
| Bakeout Temperature (electronics removed) |
250 °C |
| Response Time | ≤50 ms |
| Display Readable Distance | 3 m (10 ft) |
| Accuracy | |
| 1*10-9 to 1*10-3 Torr | ±30% of reading |
| Analog Output | ±10 mV |
| Pin | Description |
| 1 | Analog Out (Ground) |
| 2 | RS-485 A (-) |
| 3 | SP2 NC |
| 4 | SP2 NO |
| 5 | SP1 Open Drain |
| 6 | Do not connect |
| 7 | Do not connect |
| 8 | Supply Voltage (+) |
| 9 | Analog Out (0 to 10) V |
| 10 | RS-485 B (+) |
| 11 | SP2 Com |
| 12 | SP1 Source |
| 13 | Sensor Voltage Control (Ground) |
| 14 | Sensor Voltage Control (+) |
| 15 | Supply Voltage (Ground) |
The MX7M has two set points. Set point 1 is an N-Channel 60 V MOSFET open collector. It has a maximum current rating of 1 A. The datasheet can be found at www.vishay.com/en/product/69958.
Set point 2 is a relay with a maximum switching voltage of 220 V DC (250 V AC) and a maximum switching current of 2 A. The datasheet can be found at www.te.com/catalog/pn/en/1393788-3.
| Stainless Steel |
| Alumina Ceramic |
| Molybdenum |
| Kovar |
| Ag-Cu Braze Alloy |
| Copper |
| Housing | Aluminum |
| Weight with Sensor | 1 kg (2 lbs) |
| Weight without Sensor | 0.3 kg (0.6 lbs) |
| Certified to UL 61010-1 |
| Certified to CAN/CSA C22.2 No. 61010-1-12 |
| CE certified to EN 61010-1, EN 61236-1, EN 55011 |
| RoHS compliant |
| IP40 |
| EAC certified |
| ISO 17025 accredited calibration optional |
| NIST traceable calibration optional |
Product Documentation
| MX7M Datasheet |
| MX7M Instruction Manual |
| Televac®️ Vacuum Calibration Tolerances |
3D Models (STEP Files)
| 2-8950-CF40 – MX7M NW40/KF40 Stainless Steel |
Application Notes
Videos
| MX7M Disassembly Video |
Tools
| Televac® Vacuum Measurement Converter |
| Web Serial Terminal |
Articles
| Vacuum Measurement Using Modern Cold Cathode Technology |
Brochures
| Televac®️ Vacuum Measurement Product Catalog |
| MX7M Benefits and Features Brochure |
Download STEP File
| Part Number | Description | STEP File |
| 2-8950-CF40 | MX7M NW40/KF40 Stainless Steel | Download |
MX7M Cold Cathode Active Vacuum
Gauge Quantity Discounts
| Quantity | Discount |
| 1 | List |
| 5 | 2% |
| 10 | 5% |
| 15 | 7% |
| 20 | 10% |
| 25 | 13% |
| 30+ | 15% |
D-Sub 15 Cable Quantity Discounts
| Quantity | Discount |
| 1 | List |
| 50 | 5% |
| 75 | 10% |
| 100+ | 15% |
