140734-07 | Bently Nevada 3500/77M Cylinder Pressure Monitor

Description

The Bently Nevada 140734-07 3500/77M Recip Cylinder Pressure Monitor is a 4-channel device designed to accept inputs from Bently Nevada-approved pressure transducers. It conditions these signals to perform various cylinder pressure measurements on reciprocating compressors and compares the results to user-configured alarm thresholds.

Primary Functions

• Machinery Protection: Continuously monitors parameters against alarm setpoints to trigger alerts.
• Operational Insights: Provides essential data for operations and maintenance personnel.

Proportional Values (PPLs)

Each channel generates eight proportional values (PPLs) for monitoring cylinder pressure operation:

• Single Chamber PPLs:
  • Discharge Pressure
  • Suction Pressure
  • Maximum Pressure
  • Minimum Pressure
  • Compression Ratio
• Combined Channel PPLs:
  • Peak Rod Compression
  • Peak Rod Tension
  • Degree of Rod Reversal

Specifications

Environmental Limits

• Operating Temperature:
  • Internal/External Termination Cylinder Pressure I/O Module: -30°C to +65°C (-22°F to +150°F).
• Storage Temperature: -40°C to +85°C (-40°F to +185°F).
• Humidity: 95%, non-condensing.

Physical Characteristics

• Dimensions (H x W x D):
  • 241.3 mm x 24.4 mm x 241.8 mm (9.50 in x 0.96 in x 9.52 in).
• Weight: 0.91 kg (2.0 lbs).

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