3500/64M Dynamic Pressure Monitor , China 3500/64M Dynamic Pressure Monitor Manufacturers, Suppliers, Factory

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	3500/64M
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Quick Detail

Signal Input	Accepts 1 to 4 pressure transducer signals
Input Impedance – 3 Wire	10 kΩ
Input Impedance – 2 Wire	1.5 MΩ to 3.5 MΩ typical
Dynamic Pressure Sensitivity	100 mV/psi (1.45 mV/mBar)
Front Panel OK LED	Indicates monitor operating properly
Front Panel TX/RX LED	Indicates communication with other 3500 rack modules
Front Panel Bypass LED	Indicates Bypass Mode active
Front Panel Output Connector	One coaxial connector per channel, short-circuit protected
Cascade Mode	Buffered transducer outputs not cascaded
Output Impedance	550 Ω
Transducer Supply – 3 Wire	-24 Vdc
Transducer Supply – 2 Wire	3.3 mA current source @ 22 Vdc nominal
Alert Time Delay	1 to 60 seconds in 1-second intervals
Dimension:	2.6x25.8x24cm
Weight:	0.8 kg

Description

The 3500/64M is a single-slot, four-channel dynamic pressure monitor designed for industrial automation systems. Each channel accepts high-temperature pressure transducer inputs, providing bandpass dynamic pressure measurements configurable via 3500 Rack Configuration Software. The 3500/64M allows adjustment of bandpass corner frequencies and optional notch filters, producing +4 to +20 mA recorder outputs for each channel, unaffected by short circuits.

The 3500/64M supports 2-wire transducers with 3.3 mA current at 22 Vdc and 3-wire transducers with -24 Vdc supply. Input impedance is 10 kΩ (3-wire) or 1.5–3.5 MΩ (2-wire). Dynamic pressure sensitivity is 100 mV/psi (1.45 mV/mBar), with resolution of 0.3662 µA per bit and ±0.25% room-temperature error, ±0.66% to +0.70% over temperature range. Alert and danger time delays are configurable from 0.1–60 seconds, supporting fast-response alarm systems.

The 3500/64M drives alarms to protect machinery and delivers essential operating data for maintenance. Its 550 Ω output impedance and 0–12 Vdc voltage compliance ensure integration with control systems. With update rates of ~100 ms, the 3500/64M provides precise, real-time monitoring of machinery dynamic pressures across four channels.

Applications

Real-Time Machinery Protection
The 3500/64M monitors dynamic pressure from turbines, compressors, and pumps. By comparing measurements against programmable alert and danger setpoints (0.1–60 s delays), the 3500/64M drives alarms to prevent equipment damage.

Process Control and Optimization
Using the +4 to +20 mA recorder output per channel, the 3500/64M feeds dynamic pressure data into control systems. Analysis of channel data allows operators to adjust flow or pressure parameters, improving operational efficiency.

Maintenance Planning
The 3500/64M records high-resolution signals (0.3662 µA per bit) from all four channels, enabling trending and early detection of abnormal pressure events, which supports predictive maintenance and reduces unscheduled downtime.

Specifications

Danger Time Delay	0.1 second or 1 to 60 seconds in 0.1-second intervals
Dynamic Pressure Direct Filter – Low Mode	5 Hz to 4 kHz (extends to approx. 5.285 kHz without LP filter)
Dynamic Pressure Direct Filter – High Mode	10 Hz to 14.75 kHz (fixed low pass)
Recorder Output	4–20 mA proportional to monitor full-scale; individual output per channel; unaffected by short circuit
Voltage Compliance (Current Output)	0 to +12 Vdc across load
Load Resistance	0 to 600 Ω
Resolution	0.3662 µA per bit; ±0.25% error at room temperature; -0.66% to +0.70% over temperature range
Update Rate	Approximately 100 ms or less

Competitive Advantage

High-Resolution Multi-Channel Output
The 3500/64M delivers individual +4 to +20 mA recorder outputs per channel. Combined with 0.3662 µA per bit resolution and 100 mV/psi sensitivity, the 3500/64M provides precise, quantitative monitoring across four channels simultaneously.

Flexible Input Support
Supporting 2-wire (1.5–3.5 MΩ) and 3-wire (10 kΩ) transducers, the 3500/64M allows mixed transducer configurations. Isolated inputs reduce interference, maintaining measurement error within -0.66% to +0.70% across temperature ranges.

Configurable Alarms for Machinery Safety
The 3500/64M allows 0.1–60 s alert and danger time delays. Quantitative analysis of these delays ensures alarms trigger appropriately for fast-acting or gradual pressure events, protecting critical equipment.

Rapid Update Rate for Real-Time Monitoring
With an update rate of ~100 ms, the 3500/64M provides near-instantaneous pressure data, enabling operators to detect transient spikes and optimize control actions in real time.

Precise Voltage Compliance for System Integration
The 3500/64M supports 0–12 Vdc compliance across 0–600 Ω load, ensuring reliable integration with automation systems while maintaining accurate signal transmission under varying electrical loads.