Bently Nevada 163179-03 | 3500/62 Process Variable Monitor

Overview

The Bently Nevada 163179-03 3500/62 Process Variable Monitor is a 6-channel monitoring system designed for continuous monitoring of critical machine parameters such as pressure, flow, temperature, and levels. It accepts +4 to +20 mA current inputs or -10 Vdc to +10 Vdc voltage inputs and compares the conditioned signals to user-programmable alarm setpoints.

Key Features

Supports both voltage and current input signals
Configurable alarm setpoints for machinery protection
Triple Modular Redundant (TMR) support for fault tolerance
Programmable via 3500 Rack Configuration Software
Multiple I/O module options for flexible connectivity

Technical Specifications

Inputs

Parameter	Specification
Voltage Input	-10 Vdc to +10 Vdc
Current Input	4-20 mA
Voltage Compliance (4-20 mA Output)	13.66 V
Isolation Voltage (4-20 mA ISO I/O Only)	500V
Input Impedance (±10V I/O)	1 MΩ
Input Impedance (4-20 mA I/O)	50 Ω
Power Consumption	7.0 W (typical)
External Transducer Power (Internal Barrier I/O Only)	+24 Vdc ±5% @ 250 mA max (fused)

Outputs & Indicators

Indicator	Function
OK LED	Indicates proper operation of the monitor
TX/RX LED	Shows communication status with other 3500 rack modules
Bypass LED	Signals when the monitor is in Bypass Mode

Signal Conditioning

Parameter	Specification
Accuracy	±0.33% typical, ±1% max
Full-Scale Range	Up to 20,000 units mapped over input signal span
Minimum Input Signal Span (Voltage Input)	2V

Alarms

Alarm Type	Setpoint Range	Time Delay
Alert	0-100% of full-scale	1 to 60 sec (1-sec intervals)
Danger	0-100% of full-scale	1 to 60 sec (0.5-sec intervals)

Minimum Alarm Time Delay Based on Active Channels

Active Channels	Minimum Time Delay (ms)
0	270
1	360
2	450
3	540
4	630
5	720
6	810

Environmental Limits

Parameter	Specification
Operating Temperature (Standard I/O)	-30°C to +65°C (-22°F to +149°F)
Operating Temperature (Barrier I/O)	0°C to +65°C (32°F to +149°F)
Storage Temperature	-40°C to +85°C (-40°F to +185°F)
Humidity	95% non-condensing

Physical Dimensions

Parameter	Specification
Height	241.3 mm (9.50 in)
Width	24.4 mm (0.96 in)
Depth	241.8 mm (9.52 in)
Weight	0.82 kg (1.8 lbm)

Applications

The 3500/62 Process Variable Monitor is commonly used in industrial automation and machinery protection to ensure continuous monitoring and early fault detection in rotating equipment, reducing downtime and maintenance costs.