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140T- Hazardous

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140T- Hazardous

Balmac Intrinsically Safe Vibration Transmitter 140T- Hazardous

Balmac Intrinsically Safe Vibration Transmitter


The Balmac Model 140T intrinsically safe vibration transmitter is low cost, yet highly accurate and rugged. It is ideal for use with all machines, even those which previously may have been considered uneconomical to monitor. The Model 140T easily mounts by use of a standard 1/4"-20 stud. It is a two-wire, loop-powered transmitter which can feed the vibration level of operating machinery to a data logger, milliamp monitor, or process control computer. Solid state accelerometer and circuit design provide a 4-20 mA signal proportional to vibration velocity. Intrinsically safe, it can be used in hazardous environments when coupled with a Model MTL7706 Intrinsic Safety barrier.


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  • Reliable performance
  • Easy to install
  • 4-20 mA output
  • Intrinsically safe Class I, Division 1, Groups A, B, C, D; Class II, Division 1, Groups E, F, G

Supply Voltage:14-50 VDC, black=negative, red=positive, reverse polarity protection

Accuracy:5% to 10% of scale

Signal Output:4-20 mA, 600Ω @ 24 VDC

Frequency Range:7-1300 Hz ±3% (420-78,000 rpm)

Isolation:500V, circuit-to-case

Vibration Output Range:Peak Output

 :140T-1 4-20mA, 0-1 in/sec (0-25.4mm/sec)

 :140T-2 4-20mA, 0-2 in/sec (0-50.8mm/sec)

Operating Temperature:-4° to 185°F (-20° to 85°C)

Enclosure Rating:NEMA 4, weatherproof, Cadmium-plated steel

Process Connection:1" MNPT

Mounting:1/4'″-20 stud, 3/8″ deep

Weight:0.41 lb (0.18 Kg)

Approvals:UL File #E126345

Warranty:1 year


Download Additional Data

document   140T-Hazardous Datasheet