VIBRATION TRANSMITTER FOR HAZARDOUS AREAS

Description

The Balmac Model 140 Vibration Transmitter Series are two-wire, loop-powered velocity-type sensors that provide a 4-20 mA signal that is proportional to vibration. The 140 Series feature a 1-inch NPT pipe thread that fits a rated 90-degree capped elbow conduit that meets UL and CSA approval requirements for use in hazardous areas.
        The 4-20 mA output is compatible with PLC’s and digital control systems to provide continuous monitoring of fans, motors, pumps, compressors and other critical rotating machines.  Continuous monitoring of machine vibration levels provides early warning and detection of problems such as unbalance, bearing wear and misalignment.
        The Model 140 Series is available in velocity ranges of 0-1, 0-2 and 0-5 inches per second.  The Model 140-T Series is the same transmitter with a Terminal Strip for wiring.

Specs

• Model 140-1 0 - 1 in/sec (0 - 25.4 mm/sec) (peak) • Model 140-2 0 - 2 in/sec (0 - 50.8 mm/sec) (peak) • Model 140-5 0 - 5 in/sec (0 - 127 mm/sec) (peak) • Model 140-X Special Order Example: • 140-25 = 0 - 25 in/sec (0 - 635 mm/sec) • Frequency 7 - 1300 Hz to -3 dB • 420 - 78,000 RPM • Output 4 - 20mA proportional to overall vibration (an • output of 4mA indicates 0 in/sec or no • vibration while an output of 20mA indicates • the maximum full scale range is present) • Supply Voltage 14 to 50 Vdc • Red lead/terminal = positive (+) • Black lead/terminal = negative (-) • With reverse voltage protection • Circuitry Solid-state, encapsulated in hardened epoxy • Adjustment Span and Zero • Max. Loop • LS Resistance R = 50 (V - 12.5) ohms • Isolation 500 V, circuit to case • Temperature -20 C to 85 C (-4 F to 185 F) • oo o o • Weight 13.6 oz. (387 grams) • Case Material Plated Steel, NEMA 4 weatherproof • Mounting 1/4-20 stud x 3/8 inch deep
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