Bently 3500/62 Process Variable Monitor

Description

The 3500/62 Process Variable Monitor is a 6-channel monitor for processing

machine critical parameters that merit continuous monitoring, such as pressures,

flows, temperatures, and levels. The monitor accepts +4 to +20 mA current inputs

or any proportional voltage inputs between -10 Vdc and +10 Vdc.

It conditions these signals and compares the conditioned signals to user-programmable alarm setpoints.

The 3500/62 monitor: 

Continuously compares monitored parameters against configured alarm

setpoints to drive alarms for machinery protection. l

Provides essential machine information for both operations and maintenance personnel.

You can program the 3500/62 using the 3500 Rack Configuration Software to perform

either current or voltage measurements.

The 3500/62 offers I/O modules for three signal input scenarios: +/-10 Volts DC,

isolated 4-20 mA, or 4-20 mA with Intrinsically Safe zener barriers.

The Internal Barrier I/O provides external power input terminals to provide intrinsically safe power to the 4-20 mA transducers

When used in a Triple Modular Redundant (TMR) configuration, you must install 

Process Variable Monitors adjacent to each other in groups of three.

When used in this configuration, the monitor employs two types of voting to ensure

accurate operation and to avoid loss of machinery protection due to single-point failures.

Alarms

Alarm Setpoints

User can set Alert and Danger setpoints for the value measured by the monitor.

Alarms are adjustable and can normally be set from 0 to 100% of full-scale for each measured value.

The exception is when the full-scale range exceeds the range of the sensor in which

case the setpoint will be limited to the range of the sensor.

Accuracy of alarms is to within 0.13% of the desired value.

The Process Variable Monitor has both under and over alarm setpoints.