Televac® MX4A Active Convection Digital Vacuum Gauge (Pirani)

Part Numbers: 2-8930-101, 2-8930-110, 2-8930-111, 2-8930-116, 2-8930-125, 2-8930-130 2-8930-131, 2-8930-132, 2-8930-150, 2-8930-152

Compatible With: MX Active Gauge EthernetIP Gateway

Features and Benefits:

  • Low cost digital vacuum gauge
  • Very compact digital vacuum gauge
  • Easy-to-read color OLED digital vacuum gauge display
  • Excellent resolution and repeatability convection gauge (Pirani)
  • Superior unit-to-unit performance between vacuum gauges
  • Excellent customer support for vacuum gauges

The Televac® MX4A Active Vacuum Gauge (also called a convection vacuum gauge, analog vacuum gauge, digital vacuum gauge, convection, or Pirani gauge) utilizes an easily replaceable Televac® 4A convection vacuum gauge. This digital vacuum gauge has a variety of features including a pressure measurement range from 1*10-4 Torr up to 1000 Torr, RS-485 communications, two programmable set points, and a selectable 0 to 10 V DC analog vacuum gauge output.

The bright OLED digital vacuum gauge display makes it easy to read from a distance. Options on this Pirani gauge can be set from four touch controls on the top of the unit or through RS-485 communications (or EthernetIP if you add in an EthernetIP gateway). This vacuum gauge offers an extensive selection of fittings, simple use, ease of sensor replacement, and low cost making it an excellent choice for a variety of vacuum applications.

MX4A Active GaugePart NumberPriceBuy
1/8” NPT Stainless Steel2-8930-101$610.00

1/8” NPT Nickel Plated Brass2-8930-110$525.00

1/2” Straight Stainless Steel2-8930-111$610.00

NW16 (DN16 ISO-KF) Nickel Plated Brass2-8930-116$580.00

NW16 (DN16 ISO-KF) Stainless Steel2-8930-130$615.00

NW25 (DN25 ISO-KF) Nickel Plated Brass2-8930-125$580.00

NW25 (DN25 ISO-KF) Stainless Steel2-8930-131$615.00

NW40 (DN40 ISO-KF) Stainless Steel2-8930-132$620.00

1.33” CF (DN16 ISO-CF-F) Stainless Steel2-8930-150$620.00

2.75” CF (DN40 ISO-CF-F) Stainless Steel2-8930-152$625.00

D-Sub 6 Conductor CablePart NumberPriceBuy
10’ flying leads 6 conductor2-9857-010$105.00
20’ flying leads 6 conductor2-9857-020$125.00
35’ flying leads 6 conductor2-9857-035$150.00
50’ flying leads 6 conductor2-9857-050$170.00
65’ flying leads 6 conductor2-9857-065$200.00
100’ flying leads 6 conductor2-9857-100$230.00
D-Sub 15 Conductor CablePart NumberPriceBuy
10′ flying leads 15 conductor2-9858-010$265.00
20′ flying leads 15 conductor2-9858-020$345.00
35′ flying leads 15 conductor2-9858-035$550.00
50′ flying leads 15 conductor2-9858-050$665.00
65′ flying leads 15 conductor2-9858-065$780.00
100′ flying leads 15 conductor2-9858-100$1,195.00
Wall Power SupplyPart NumberPriceBuy
100-240 V AC/47-63 Hz, plug types A, C, G, I2-7900-097$130.00
Operating Range 1*10-4 Torr to 1000 Torr
Communications RS-485
Analog Output 7 selectable 0 V DC to 10 V DC
Programmable Set Points 2
Set Point 1 Open collector
Set Point 2 Relay
Supply Voltage 22 V to 26 V DC
Maximum Power 8 W
Calibration Medium Dry air or nitrogen
Overpressure 150 psi
Digital Output Resolution 2 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
Brass (P/N: 2-8910-110) 100 °C (electronics removed)
Stainless (P/N: All Others 200 °C (electronics removed)
Response Time ≤ 2 s
Display Readable Distance 3 m (10 ft)
0.1 mTorr to 1 mTorr 0.1 mTorr resolution
1 mTorr to 10 mTorr ±1 mTorr
10 mTorr to 1000 Torr ±10% of reading
Analog Output ±10 mV

Analog Output Behavior

Televac vacuum gauge convection gauge pirani vacuum transducer

Related Products

MX7B Cold Cathode MX7M Cold Cathode CC-10 Wide Range MX Active Gauge

EthernetIP Gateway

Measurement Range 1*10-8 to 1*10-3 Torr 5*10-11 to 1*10-2 Torr 1*10-9 to 1000 Torr 5*10-11 to 10,000 Torr
Communications RS-485/USB RS-485/USB RS-485 EthernetIP
Analog Output Configurable 0 to 10 V DC Configurable 0 to 10 V DC Configurable 0 to 10 V DC None
Programmable Set Points 2 2 3 relays None
EthernetIP Available Yes Yes No Yes