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3500 Series Machinery Monitoring System

Home >  Products >  For Bently Nevada >  3500 Series Machinery Monitoring System

136294-01 Isolated +4 to +20 mA I/O Module

  • Overview
  • Quick Detail
  • Description
  • Applications
  • Specifications
  • Competitive Advantage
  • Recommended Products
Overview

Place of Origin:

USA

Brand Name:

Bently Nevada

Model Number:

136294-01

Packaging Details:

Original new Factory Sealed

Delivery Time:

5-7 days

Payment Terms:

T/T

Supply Ability:

In stock

Quick Detail

Input Signal (+/-10 Vdc I/O):

-10 Vdc to +10 Vdc

Input Signal (4-20 mA Barrier I/O):

4-20 mA DC

Input Signal (4-20 mA Isolated I/O):

4-20 mA DC

Voltage Compliance (4-20 mA Barrier I/O Output):

13.66 V

Isolation (4-20 mA Isolated I/O Only):

500 V

Input Impedance (+/-10 V I/O):

1 MΩ

Input Impedance (4-20 mA Barrier I/O):

50 Ω

Input Impedance (4-20 mA Isolated I/O):

50 Ω

Power Consumption:

7.0 W typical

External Transducer Power (Internal Barrier I/O Only):

+24 Vdc ±5% @ 250 mA max

Rack Space (Monitor Module):

1 full-height front slot

Rack Space (I/O Module):

1 full-height rear slot

Operating Temperature (Internal/External I/O):

-30°C to +65°C

Operating Temperature (Internal Barrier I/O):

0°C to +65°C

Storage Temperature:

-40°C to +85°C

Humidity:

95% noncondensing

Dimension:

2.5x11x24cm

Weight:

0.44kg

Description

The Bently Nevada 136294-01 Isolated +4 to +20 mA I/O Module is part of the 3500/62 Process Variable Monitor, processing six critical channels for pressures, flows, temperatures, and levels. The 136294-01 Module accepts 4–20 mA DC or ±10 Vdc inputs, providing 50 Ω input impedance for isolated signals and 500 V isolation. The 136294-01 Isolated +4 to +20 mA I/O Module conditions signals and compares them to user-programmed alarm setpoints, triggering alerts with 1–60 s delay. Operating from -30°C to +65°C, consuming 7 W, and occupying one full-height rear slot, the 136294-01 Module supplies external +24 Vdc power for internal barrier transducers and displays operation, TX/RX, and bypass LEDs for automated monitoring and real-time process control in industrial systems.

Applications

Continuous Pressure Monitoring
The Bently Nevada 136294-01 Isolated +4 to +20 mA I/O Module processes 4–20 mA current inputs from pressure sensors with 50 Ω input impedance and 500 V isolation. The 136294-01 Module continuously compares measured pressures against user-programmed alarm setpoints, enabling automated alerts and machine protection.

Flow Rate Control
The Bently Nevada 136294-01 Isolated +4 to +20 mA I/O Module monitors flow sensors with input ranges of 4–20 mA or ±10 Vdc. The 136294-01 Module conditions signals and sends them to the 3500/62 Process Variable Monitor, supporting automated control and reporting of flow rates in pipelines and industrial systems.

Temperature and Level Monitoring
The Bently Nevada 136294-01 Isolated +4 to +20 mA I/O Module accepts six channels for temperatures or level transducers, with full-scale range up to 20,000 units and ±0.33% typical accuracy. The 136294-01 Module drives alarms and communicates data to operators for automated process adjustments.

Intrinsically Safe Sensor Integration
The Bently Nevada 136294-01 Isolated +4 to +20 mA I/O Module supplies external +24 Vdc to barrier I/O transducers. The 136294-01 Module enables safe installation of 4–20 mA sensors in hazardous areas while maintaining accurate, automated signal monitoring.

Specifications

Alert Delay:

1–60 s in 1 s intervals

Danger Delay:

1–60 s in 0.5 s intervals

Accuracy:

±0.33% full-scale typical, ±1% maximum

Full-Scale Range:

Maximum 20,000 units over input span

Minimum Voltage Input Span:

2 V

Front Panel LED (OK):

Normal operation indication

Front Panel LED (TX/RX):

Rack communication indication

Front Panel LED (Bypass):

Bypass mode indication

Competitive Advantage

High Accuracy Signal Conditioning
The Bently Nevada 136294-01 Isolated +4 to +20 mA I/O Module provides ±0.33% typical accuracy and full-scale ranges up to 20,000 units. The 136294-01 Module delivers precise automated readings for pressure, flow, temperature, and level measurements.

Isolated Channel Protection
The Bently Nevada 136294-01 Isolated +4 to +20 mA I/O Module offers 500 V isolation per channel and 50 Ω input impedance. The 136294-01 Module prevents cross-channel interference, ensuring reliable automated monitoring in multi-channel industrial systems.

Flexible Signal Compatibility
The Bently Nevada 136294-01 Isolated +4 to +20 mA I/O Module accepts 4–20 mA and ±10 Vdc inputs. The 136294-01 Module allows operators to connect diverse transducers and implement automated monitoring without changing hardware.

Rack-Friendly Installation
The Bently Nevada 136294-01 Isolated +4 to +20 mA I/O Module occupies one full-height rear slot and works with 3500/62 monitor front slots. The 136294-01 Module enables quick installation and automated integration into existing 3500 rack systems.

Alert and Communication Indicators
The Bently Nevada 136294-01 Isolated +4 to +20 mA I/O Module has front panel OK, TX/RX, and Bypass LEDs. The 136294-01 Module provides operators with immediate automated feedback on signal processing and rack communication status.

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