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Vibro-Meter VM-742B1-1
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Vibro-Meter VM-701BNB1TRPTB1
Vibro-Meter VM-701BNB1TRPTB1
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Vibro-Meter VM-3024H
Vibro-Meter VM-3024H

Vibro-Meter VM-742B1-1

Product Overview
The VM-742 series is a 2-wire loop-powered vibration/temperature transmitter compatible with Vibro-Meter’s sensor portfolio (typically IEPE accelerometers or velocity pickups). It conditions the dynamic signal and outputs a proportional 4–20 mA current representing overall vibration (RMS or peak) for direct connection to a DCS or PLC. Often used in API 670-compliant machinery health monitoring where a full rack system is not required.
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Description
Typical Specifications
  • Input:​ IEPE accelerometer (2–20 mA constant current excitation) or seismic velocity coil
  • Measuring Range:​ Configurable; typical 0–25 mm/s RMS or 0–50 g peak
  • Output:​ 4–20 mA (2-wire, loop powered), linear with vibration amplitude
  • Supply Voltage:​ 12–30 V DC (loop powered)
  • Frequency Band:​ 2 Hz – 1 kHz (standard; configurable high-pass/low-pass)
  • Accuracy:​ ±2 % of full scale
  • Housing:​ Aluminum or stainless steel, typically explosion-proof (Ex d / Ex ia options)
  • Operating Temp.:​ –40 °C to +85 °C
  • Mounting:​ Directly on sensor or via DIN rail with separate junction box
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