136483-01 Isolated +4 to +20 mA I/O Module

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	136483-01
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Quick Detail

Description

The Bently Nevada 136483-01 Isolated +4 to +20 mA I/O Module is a 6-channel Process Variable Monitor designed for critical machinery parameters such as pressure, flow, temperature, and level. The 136483-01 supports 4-20 mA DC isolated inputs and ±10 Vdc voltage inputs, with 500 V isolation on the isolated I/O. Input impedance is 50 Ω for 4-20 mA and 1 MΩ for voltage signals. The module provides external +24 Vdc transducer power for barrier I/O and consumes 7 W typical. It fits a full-height rear slot and operates from -30°C to +65°C. Alarm delays are adjustable from 1–60 s, with ±0.33% typical accuracy over a full-scale range up to 20,000 units. Front panel LEDs indicate OK, TX/RX, and Bypass status. In TMR configuration, 136483-01 modules must be installed in adjacent triples, using voting logic to maintain precise monitoring and machinery protection.

Applications

Monitor Industrial Pressures
The 136483-01 reads 4-20 mA DC or ±10 Vdc signals from pressure sensors, compares them to user-programmed alarm setpoints, and triggers alarms if limits are exceeded, ensuring continuous pressure monitoring in pumps and compressors.

Track Flow Rates in Pipelines
Using its 6-channel inputs, the 136483-01 processes flow transmitter signals with input impedance of 50 Ω for 4-20 mA, providing accurate flow measurement and alerting operations when flow thresholds are crossed.

Measure Temperature in Critical Equipment
The 136483-01 accepts voltage or current inputs from thermocouples or RTDs, with adjustable alert and danger delays (1–60 s), enabling precise temperature tracking in turbines, boilers, and heat exchangers.

Level Monitoring in Tanks
By connecting level transducers to the 136483-01, operators can continuously monitor fluid levels with ±0.33% typical accuracy, supporting automatic alarms for overfill or low-level conditions.

Specifications

Competitive Advantage

Supports Isolated 4-20 mA Inputs
The 136483-01 isolated I/O provides 500 V isolation, reducing signal interference and protecting connected transducers during industrial operations.

Provides Intrinsically Safe Barrier Power
With internal barrier I/O, the 136483-01 supplies +24 Vdc ±5% @ 250 mA to 4-20 mA intrinsically safe transducers, allowing safe deployment in hazardous areas.

Flexible Input Options
The 136483-01 handles ±10 Vdc and 4-20 mA signals, giving operations teams flexibility to connect a wide range of sensors without additional signal conditioning.

Enables Triple Modular Redundant Operation
In TMR configuration, 136483-01 modules installed in adjacent groups of three use voting logic to maintain accurate monitoring and machinery protection even if one module fails.

Easy Integration and Monitoring
Front panel LEDs on the 136483-01 indicate normal operation, communication status, and bypass mode, allowing maintenance personnel to quickly verify system performance.