3500/72M Reciprocating Piston Rod Position Monitor

1. Basic Information

• Brand: Bently Nevada
• Type: Position Monitor
• Number of Channels: 4-channel
• Origin: United States

2. Functional Features

• Multi-parameter Measurement: It can receive signals from Bently Nevada eddy current sensors and process them into a variety of dynamic and static position measurement parameters, including piston rod position, piston rod drop, and hyper-compressor (parameters related to reciprocating machinery operation).
• Programmable Alarms: Warning alarm points can be set for each measured value, and danger alarm points can be set for any two measured values. Alarm setpoints are configured via software, adjustable within the range of 0-100% of the full scale, with an alarm accuracy within 0.13% of the required alarm value.
• Signal Conditioning: It conditions input signals and has different frequency responses and filtering functions to ensure measurement accuracy.
• Compliance with Industry Standards: Complies with the API 618 standard, making it suitable for monitoring reciprocating compressors.

3. Technical Specifications

• Inputs: Accepts signals from 1 to 4 eddy current sensors, with an input impedance of 10 kΩ. The rated sensitivity is selectable as 3.94 mV/µm (100 mV/mil) or 7.87 mV/µm (200 mV/mil) depending on different measurement parameters.
• Outputs: 4-20 mA DC output. The front panel is equipped with LED indicators such as OK, TX/RX, and Bypass. Each channel has a coaxial connector with short-circuit protection, and the output impedance is 550 Ω.
• Accuracy:
  • Typical accuracy for values such as displacement, clearance, instantaneous probe clearance, 1X amplitude, and 2X amplitude: within ±0.33% of the full scale (maximum ±1.0%).
  • Typical accuracy for non-1X amplitude: within ±3.0% of the full scale.
  • Typical accuracy for position crank angle: within ±1° (maximum ±3°).
• Update Rate: 10 Hz.
• Power Supply: 24 Vdc, with a rated power consumption of 7.7 W.
• Operating Environment:
  • Operating temperature: -30°C to +65°C (-22°F to +150°F) when used with I/O modules.
  • Storage temperature: -40°C to +85°C (-40°F to +185°F).
  • Humidity: 95% non-condensing.

The company has multiple main brands, and if you have other brand requirements, you can also send them to customer service for inquiry.

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3500/72M