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
  • ISO 17025 accredited and NIST-traceable calibrations optional
  • 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 Convection Active Vacuum Gauge

Product Description
Price
Calibration
Quantity
1/8” NPT Stainless Steel
1/8” NPT Stainless Steel
PN: 2-8930-101
$725.00

1/8” NPT Nickel-Plated Brass
1/8” NPT Nickel-Plated Brass
PN: 2-8930-110
$620.00

1/2” Straight Stainless Steel
1/2” Straight Stainless Steel
PN: 2-8930-111
$725.00

NW16/KF16 Nickel-Plated Brass
NW16/KF16 Nickel-Plated Brass
PN: 2-8930-116
$685.00

NW16/KF16 Stainless Steel
NW16/KF16 Stainless Steel
PN: 2-8930-130
$730.00

NW25/KF25 Nickel-Plated Brass
NW25/KF25 Nickel-Plated Brass
PN: 2-8930-125
$685.00

NW25/KF25 Stainless Steel
NW25/KF25 Stainless Steel
PN: 2-8930-131
$730.00

NW40/KF40 Stainless Steel
NW40/KF40 Stainless Steel
PN: 2-8930-132
$735.00

CF16/1.33
CF16/1.33" CF-F Stainless Steel
PN: 2-8930-150
$735.00

CF40/2.75
CF40/2.75" CF-F Stainless Steel
PN: 2-8930-152
$740.00

D-Sub 15, 15 Conductor Cables (Flying Leads)

Product Description
Price
Quantity
10′ D-Sub 15, 15 Conductor Cable (Flying Leads)
10′ D-Sub 15, 15 Conductor Cable (Flying Leads)
PN: 2-9858-010
$305.00
20′ D-Sub 15, 15 Conductor Cable (Flying Leads)
20′ D-Sub 15, 15 Conductor Cable (Flying Leads)
PN: 2-9858-020
$390.00
35′ D-Sub 15, 15 Conductor Cable (Flying Leads)
35′ D-Sub 15, 15 Conductor Cable (Flying Leads)
PN: 2-9858-035
$625.00
50′ D-Sub 15, 15 Conductor Cable (Flying Leads)
50′ D-Sub 15, 15 Conductor Cable (Flying Leads)
PN: 2-9858-050
$760.00
65′ D-Sub 15, 15 Conductor Cable (Flying Leads)
65′ D-Sub 15, 15 Conductor Cable (Flying Leads)
PN: 2-9858-065
$885.00
100′ D-Sub 15, 15 Conductor Cable (Flying Leads)
100′ D-Sub 15, 15 Conductor Cable (Flying Leads)
PN: 2-9858-100
$1,355.00

D-Sub 15, 6 Conductor Cables (Flying Leads)

Product Description
Price
Quantity
10’ D-Sub 15, 6 Conductor Cable (Flying Leads)
10’ D-Sub 15, 6 Conductor Cable (Flying Leads)
PN: 2-9857-010
$130.00
20’ D-Sub 15, 6 Conductor Cable (Flying Leads)
20’ D-Sub 15, 6 Conductor Cable (Flying Leads)
PN: 2-9857-020
$155.00
35’ D-Sub 15, 6 Conductor Cable (Flying Leads)
35’ D-Sub 15, 6 Conductor Cable (Flying Leads)
PN: 2-9857-035
$185.00
50’ D-Sub 15, 6 Conductor Cable (Flying Leads)
50’ D-Sub 15, 6 Conductor Cable (Flying Leads)
PN: 2-9857-050
$210.00
65’ D-Sub 15, 6 Conductor Cable (Flying Leads)
65’ D-Sub 15, 6 Conductor Cable (Flying Leads)
PN: 2-9857-065
$245.00
100’ D-Sub 15, 6 Conductor Cable (Flying Leads)
100’ D-Sub 15, 6 Conductor Cable (Flying Leads)
PN: 2-9857-100
$280.00

Wall Power Supply

Product Description
Price
Quantity
100-240 V AC/47-63 Hz, Plug Types A, C, G, I
100-240 V AC/47-63 Hz, Plug Types A, C, G, I
PN: 2-7900-097
$160.00

Replacement 4A Convection Vacuum Gauges

Product Description
Price
Quantity
1/8” NPT Nickel-Plated Brass
1/8” NPT Nickel-Plated Brass
PN: 2-2119-001
$165.00
1/8” NPT Stainless Steel
1/8” NPT Stainless Steel
PN: 2-2120-001
$245.00
1/2
1/2" Straight Stainless Steel
PN: 2-2120-011
$245.00
NW16/KF16 Nickel-Plated Brass
NW16/KF16 Nickel-Plated Brass
PN: 2-2119-016
$215.00
NW16/KF16 Stainless Steel
NW16/KF16 Stainless Steel
PN: 2-2120-030
$250.00
NW25/KF25 Nickel-Plated Brass
NW25/KF25 Nickel-Plated Brass
PN: 2-2119-025
$220.00
NW25/KF25 Stainless Steel
NW25/KF25 Stainless Steel
PN: 2-2120-031
$250.00
NW40/KF40 Stainless Steel
NW40/KF40 Stainless Steel
PN: 2-2120-032
$260.00
8-VCO Male Stainless Steel
8-VCO Male Stainless Steel
PN: 2-2120-040
$260.00
8-VCO Female Stainless Steel
8-VCO Female Stainless Steel
PN: 2-2120-041
$260.00
8-VCR Male Stainless Steel
8-VCR Male Stainless Steel
PN: 2-2120-042
$260.00
8-VCR Female Stainless Steel
8-VCR Female Stainless Steel
PN: 2-2120-043
$260.00
4-VCR Male Stainless Steel
4-VCR Male Stainless Steel
PN: 2-2120-044
$260.00
4-VCR Female Stainless Steel
4-VCR Female Stainless Steel
PN: 2-2120-045
$260.00
CF16/1.33
CF16/1.33" CF-F Stainless Steel
PN: 2-2120-050
$260.00
CF40/2.75
CF40/2.75" CF-F Stainless Steel
PN: 2-2120-052
$265.00
Operating Range 1*10-4 Torr to 1000 Torr
Display OLED
Digital Communications RS-485
Analog Output 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 DC 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 (PN: -110, -116, -125) 100 °C (electronics removed)
Stainless Steel (PN: All Others) 200 °C (electronics removed)
Display Readable Distance 3 m (10 ft)
Accuracy (Vertical Mount)  
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
Graph of the analog output behavior for the Televac® MX4A Convection Active Vacuum Gauge.
Pin Description
1 Analog Out (Ground)
2 RS-485 A (-)
3 SP2 NC
4 SP2 NO
5 SP1 Open Drain
6 Floating
7 Floating
8 Supply Voltage (+)
9 Analog Out (0 to 10) V
10 RS-485 B (+)
11 SP2 Com
12 SP1 Source
13 Floating
14 Floating
15 Supply Voltage (-)
Diagram of the electrical connections (pin diagram) for the Televac® MX4A Convection Active Vacuum Gauge.
*0S1<CR> Read vacuum measurement
*0R1<CR> Read units of measurement
*0R2<CR> Read SP1L and SP1H

Assume address 0

Full list of commands is available in the instruction manual.

The MX4A 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.

MX4A PN: -110, -116, -125 MX4A PN: All Others
Nickel Nickel
Glass Glass
Gold Gold
Tophet Tophet
Cupron Cupron
Solder Stainless Steel
Housing Aluminum
Electrical Connections D-Sub 15-pin male
Weight with Sensor (typical) 350 g (0.77 lbs)
Weight without Sensor 200 g (0.44 lbs)
Dimensional drawing of the Televac® MX4A Convection Active Vacuum Gauge.
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

Download STEP File

Part Number Description STEP File
2-9830-125 MX4A NW25/KF25 Nickel-Plated Brass Download
2-9830-131 MX4A NW25/KF25 Stainless Steel Download
Quantity Discount
1 List
5 2%
10 5%
15 7%
20 10%
25 13%
30 15%
50 18%
75+ 20%

D-Sub 15 Cable Quantity Discounts

Quantity Discount
1 List
50 5%
75 10%
100 15%
125 20%