3500/77M 140734-07 Recip Cylinder Pressure Monitor , China 3500/77M 140734-07 Recip Cylinder Pressure Monitor Manufacturers, Suppliers, Factory

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	3500/77M 140734-07
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Quick Detail

Signal Inputs	Accepts 1 to 4 channels of Bently-approved positive voltage third-party pressure transducers (psia)
Scale Factor – 100 psia	95,000 µV/psi
Scale Factor – 250 psia	38,000 µV/psi
Scale Factor – 500 psia	19,000 µV/psi
Scale Factor – 1000 psia	9,500 µV/psi
Scale Factor – 2500 psia	3,800 µV/psi
Scale Factor – 5000 psia	1,900 µV/psi
Scale Factor – 10000 psia	950 µV/psi
Signal Conditioning – Frequency Response	0 to 5.5 kHz on all configured pressure channels
Pressure Accuracy @ 25°C	±0.5% of pressure transducer full-range (0.5–10 V)
Pressure Accuracy – Operating Temperature ±30°C to +65°C	±1.0% of pressure transducer full-range (0.5–10 V)
Proportional Values	Cylinder Pressure, Discharge Pressure, Suction Pressure, Maximum Pressure, Minimum Pressure, Compression Ratio, Peak Rod Compression, Peak Rod Tension, Degree of Rod Reversal
Dimension:	2.5x25.5x24.5cm
Weight:	0.82 kg

Description

The 3500/77M 140734-07 Recip Cylinder Pressure Monitor is a 4-channel module designed to monitor reciprocating compressor cylinder pressures. Each 3500/77M 140734-07 channel accepts 1–4 Bently-approved positive voltage pressure transducers, with input impedance of 50 kΩ, and conditions signals to generate proportional values including cylinder pressure, discharge and suction pressures, maximum and minimum pressures, compression ratio, peak rod compression, peak rod tension, and degree of rod reversal. The 3500/77M 140734-07 supports pressure measurements across ranges from 100 to 10,000 psia with scale factors from 950 µV/psi to 95,000 µV/psi, delivering ±0.5% full-scale accuracy at 25°C and ±1.0% across -30°C to +65°C. Configurable alert and danger setpoints trigger alarms and relays to automate machine protection. Operating at 7.8 W nominal, with frequency response up to 5.5 kHz, the 3500/77M 140734-07 fits 1 front and 1 rear full-height rack slot, and provides LEDs for OK, TX/RX, and Bypass status. Its precision proportional outputs integrate directly with SCADA or DCS systems for automated compressor monitoring and operational control.

Applications

Monitor Cylinder Pressure using the 3500/77M 140734-07 to measure discharge, suction, maximum, and minimum pressures from 100 to 10,000 psia with scale factors from 950 µV/psi to 95,000 µV/psi, enabling precise real-time compressor operation tracking.

Measure Peak Rod Forces with the 3500/77M 140734-07 by capturing peak rod compression and tension signals, allowing operators to detect excessive mechanical loads and prevent component damage.

Calculate Compression Ratios using the 3500/77M 140734-07 for each cylinder, processing proportional values to optimize reciprocating compressor performance and adjust operational parameters.

Automate Alarm Response with the 3500/77M 140734-07 using configurable alert (1–60 s) and danger (0.1–60 s) setpoints to trigger relays and notify personnel of abnormal cylinder pressures.

Integrate with SCADA/DCS Systems using the 3500/77M 140734-07 proportional outputs (+4 to +20 mA) and frequency response up to 5.5 kHz for real-time automation and operational monitoring.

Specifications

Input Impedance – Cylinder Pressure I/O	50 kΩ (Internal/External Termination)
Power Consumption	7.8 W (transducer supplies at full load)
Front Panel LEDs	OK LED – module operating properly, TX/RX LED – communicating with 3500 rack, Bypass LED – module in Bypass Mode
Output Impedance	550 Ω
Transducer Power Supply	+23.0 ± 0.8 Vdc with 24.5 mA current limiting per channel
Operating Temperature	-30°C to +65°C (-22°F to +150°F) with Internal/External Termination Cylinder Pressure I/O Module
Storage Temperature	-40°C to +85°C (-40°F to +185°F)
Humidity	95%, non-condensing
Rack Space Requirements – Monitor Module	1 full-height front slot
Rack Space Requirements – I/O Modules	1 full-height rear slot

Competitive Advantage

Provide Accurate Cylinder Pressure Measurement with the 3500/77M 140734-07, delivering ±0.5% full-scale accuracy at 25°C and ±1% across -30°C to +65°C operating range.

Support Multi-Channel Monitoring with the 3500/77M 140734-07, processing 1–4 pressure transducer signals simultaneously to capture detailed cylinder dynamics.

Enable Fast Automation Response with the 3500/77M 140734-07, using high-frequency signal conditioning (0–5.5 kHz) to detect rapid pressure changes and trigger alarms immediately.

Simplify Installation and Integration with the 3500/77M 140734-07, fitting 1 front and 1 rear full-height rack slot and consuming 7.8 W nominal power.

Deliver Operational Visibility through the 3500/77M 140734-07 front panel LEDs (OK, TX/RX, Bypass) and proportional outputs, allowing operators and maintenance teams to monitor cylinder performance continuously.