Part Numbers: 2-2119-001, 2-2119-016, 2-2119-025, 2-2120-001, 2-2120-011, 2-2120-030, 2-2120-031, 2-2120-032, 2-2120-040, 2-2120-041, 2-2120-042, 2-2120-043, 2-2120-044, 2-2120-045, 2-2120-050, 2-2120-052
Compatible With: MX200, MX200 EthernetIP, MX4A
Features and Benefits:
- Low cost Pirani vacuum pressure gauge
- Compact, robust, contamination resistant vacuum transducer
- Numerous fittings available (1/8″ NPT, NW25, NW40, CF40, among many others)
- Drop-in vacuum pressure gauge replacement
- Excellent customer support for vacuum transducers
- Filters available for highly contaminated environments
The Televac® 4A convection gauge (also often called a Pirani or vacuum pressure gauge) is a fast, robust, contamination resistant, and high accuracy low vacuum pressure gauge due to the Pirani filament design. Note that by comparison to the 2A thermocouple vacuum gauge, the 4A Pirani vacuum gauge must be mounted vertically.
The 4A convection gauge will read from 1*10-3 Torr (1 micron) to 1000 Torr (1,000,000 microns, slightly above atmosphere) as opposed to the more limited range of the 2A with our vacuum controllers. It also has improved accuracy over the 2A, with several of our active gauges and controllers offering ±10% accuracy over the full operating range of the vacuum gauge. The 4A vacuum pressure gauge can be operated by several Televac® controllers, including the MX200, MX200 EthernetIP, and MX4A.
| Image | 4A Convection | Part Number | Price | Buy | |
|---|---|---|---|---|---|
 | 1/8” NPT Nickel-Plated Brass | 2-2119-001 | $135.00 | ||
 | NW16 (DN16 ISO-KF) Nickel-Plated Brass | 2-2119-016 | $180.00 | ||
 | NW25 (DN25 ISO-KF) Nickel-Plated Brass | 2-2119-025 | $185.00 | ||
| 1/8” NPT Stainless Steel | 2-2120-001 | $220.00 | ||
 | NW16 (DN16 ISO-KF) Stainless Steel | 2-2120-030 | $225.00 | ||
| NW25 (DN25 ISO-KF) Stainless Steel | 2-2120-031 | $225.00 | ||
 | 8-VCO Male Stainless Steel | 2-2120-040 | $235.00 | ||
| 8-VCO Female Stainless Steel | 2-2120-041 | $235.00 | ||
| 8-VCR Male Stainless Steel | 2-2120-042 | $235.00 | ||
| 8-VCR Female Stainless Steel | 2-2120-043 | $235.00 | ||
 | 4-VCR Male Stainless Steel | 2-2120-044 | $235.00 | ||
| 4-VCR Female Stainless Steel | 2-2120-045 | $235.00 | ||
 | 1.33” CF (DN16 ISO-CF-F) Stainless Steel | 2-2120-050 | $235.00 | ||
 | 2.75” CF (DN40 ISO-CF-F) Stainless Steel | 2-2120-052 | $240.00 |
| Vacuum Measurement Range | 1*10-3 (1 micron, 1 mTorr) to 1000 Torr |
| (for MX200, MM200, MC300, MP4AR) | 1*10-1 to 1*105 Pa |
| 1*10-3 to 1000 mbar | |
| Vacuum Measurement Range (MX4A) | 1*10-4 (1 micron, 1 mTorr) to 1000 Torr |
| 1*10-2 to 1*105 Pa | |
| 1*10-4 to 1000 mbar | |
| Accuracy with MX4A, MX200 | |
| 1 to 10 mTorr (microns): | ±1 mTorr (±1 microns) |
| 10 mTorr (microns) to 1000 Torr: | ±10% of reading |
| Analog Output: | ±5 mV |
| Accuracy with MM200, MC300, MP4AR | |
| 1 to 10 mTorr (microns): | ±1 mTorr (microns) |
| 10 mTorr (microns) to 1 Torr: | ±10% of reading |
| 1 to 100 Torr: | ±20% of reading |
| 100 to 1000 Torr: | ±10% of reading |
| Analog Output: | ±10 mV |
| Maximum Filament Temperature | 250 °C |
| Mounting Orientation | Vertical |
| Calibration Medium | Dry air or nitrogen (N2) |
| Overpressure | 150 PSI |
| Operating Temperature | 0 °C to 50 °C |
| Storage Temperature | -40 °C to 85 °C |
| Maximum Bakeout Temperature | 200 °C (stainless steel) |
| 120 °C (nickel-plated brass) | |
| Response Time | Controller dependent |
| Analog Output Characteristics | Controller dependent |
| Analog Output Resolution | Controller dependent |
| Vacuum Fittings | 1/8″ NPT, NW16, NW25, 1.33″ CF, 2.75″ CF |
| See part numbers tab or datasheet for more | |
| Electrical Connections | Male octal connector |
| Weight (NW25 Flange) | 150 g (0.33 lbs) |
| Height (NW25 Flange) | 76 mm (3.0″) |
| Height (NW25 Flange) | 31.7 mm (1.25″) |
| Additional Dimensions | See datasheet for dimensional drawings |
Analog Output Characteristics
| Heat treating and vacuum furnaces | |
| Cryogenics and industrial gases | |
| Thin film deposition and coating processes | |
| Semiconductor | |
| E-beam welding | |
| Petrochemical | |
| Load-lock | |
| Pharmaceutical product processes | |
| Plasma coating/sputtering | |
| Cryogenic tanks/dewars | |
| Refilling gas cylinders | |
| Lighting/neon signs | |
| Chemical processing | |
| Textile | |
| Pharmaceutical products | |
| Processing vacuum packaging and transport | |
