General Installation Procedure

1. Review the Installation Checklist (see Section 3.2).

2. Install the Weatherproof Housing (if required) (see Section 3.3).

3. Install the rack (see Section 3.4).

4. Set the jumpers and switches on rack (see Section 3.8).

5. Install the External Termination Blocks (if required) (see Section 3.5).

6. Install the modules (see Section 4).

7. Wire the transducers, relay, and power to the rack and modules (see Section 3.9).

8. Perform the Software Portion of the Rack Installation (see Section 3.10).

Installation Checklist

Use the following items to plan a 3500 rack installation:

• What are the power requirements?

• Does the rack fit in the proposed location?

• Can you mount the rack in the proposed location?

• Does the proposed location provide enough air circulation?

• Does the rack require a weatherproof housing?

• What termination does the rack require (internal or external)?

• Does the rack require a telephone line?

• Does the location provide good grounding for the rack?

• If you plan to fit Internal Barriers, does the location provide an Intrinsically Safe Earth?

3500 Internal Barrier System Restrictions

• You must install 1 earthing module in each rack in the internal barrier system. 

The earthing module occupies 1 slot position in the rack when it uses Internal Barrier I/O modules.

• You must change the grounding configuration of the 3500/15 Power Supplies from the default factory setting.

See the 3500/15 Operation and Maintenance Manual (PN 129767-01) for instructions.

• You must isolate any RS-232 connection to any 3500 module. Monitors that support RS232 connections include Rack Interface Modules, 

Communication Gateways, and the 3500/95 PC Display. See the 3500/20 Operation and Maintenance Manual (PN 129768-01) for instructions.

This restriction does not apply to RS422 and RS485 connections to the rack. 

Monitors that support RS422 and/or RS485 connections include the 3500/20, 3500/90, 3500/92, 3500/93, and 3500/95.

• You must not use the 3500/94 VGA Display in internal barrier systems.

• You must not use bussed transducers, as internal barrier systems do not allow bussed transducers. See the TMR section of this manual for more information.

3500 Internal Barrier System Features

• The earthing module supports dual IS Earth connections for cables with cross-sectional areas up to 10 mm2. This module lets you test IS Earth continuity online.

• The design of the internal barrier I/O modules provides the 2 inches (50 mm) of separation required between safe and hazardous area field wiring.

• The connectors for safe areas and hazardous areas have different field wiring colors (green for safe and blue for hazardous) and connector pitches. 

This helps to avoid incorrect field wiring installation.

• Quick connect/disconnect connectors simplify field wiring installation and removal.

• You can locate standard and internal barrier I/O modules in the same 3500 rack. 

We recommend that you group the modules together as shown in Figure 2-10 to facilitate connection to field wiring.

To provide Intrinsically Safe (IS) vibration and process variable monitoring,

the 3500 system has a range of I/O modules with internal zener barriers.

When you install these modules in a 3500 rack with a 3500/04-01 Earthing Module, 

they provide an integrated solution for explosion protection for approved Bently Nevada

transducer systems that are located within all classifications of hazardous areas (surface industries other than mining).

3500 Internal Barrier System Restrictions

• You must install 1 earthing module in each rack in the internal barrier system. 

The earthing module occupies 1 slot position in the rack when it uses Internal Barrier I/O modules.

• You must change the grounding configuration of the 3500/15 Power Supplies from the default factory setting.

See the 3500/15 Operation and Maintenance Manual (PN 129767-01) for instructions.

• You must isolate any RS-232 connection to any 3500 module. Monitors that support RS232 connections include Rack Interface Modules, 

Communication Gateways, and the 3500/95 PC Display. See the 3500/20 Operation and Maintenance Manual (PN 129768-01) for instructions.

Multiple Output Interfaces

You can conveniently adjust monitor options (such as full scale ranges, transducer inputs,

recorder outputs, alarm time delays, alarm voting logic, and relay configuration) in the field via software.

Modular system design employs plug-in components which allow easy servicing and expansion.

The following three independent interfaces are available with the 3500 system:

• Data Manager Interface (Transient Data Interface External or Dynamic Data Interface External)

• Configuration/Data port

• Communications Gateway (support for Programmable Logic Controllers,

Process Control Computers, Distributed Control Systems, and PC-based Control Systems)

These interfaces allow you to easily view monitored parameters and their statuses in the following ways:

• System 1® Software

• Bently Nevada™ 3500 Operator Display Software

• Remote display panel

• DCS or PLC display

Convenient front panel coaxial connectors provide dynamic transducer signals

and allow you to connect diagnostic or predictive maintenance instruments.

Improved Integration to Plant Control Computer

The 3500 improves integration to the plant control computer with:

• Communication Gateways supporting multiple protocols

• Time synchronized vibration and process information

Reduced Installation and Maintenance Costs

The 3500 system provides the following cost-saving features:

• Reduced cabling costs

• Downward product compatibility

• Improved space utilization

• Easier configuration

• Reduced spare parts

• Improved serviceability

Improved Reliability

The 3500 offers several features to improve system reliability.

• Redundant power supplies available

• Triple Modular Redundant (TMR) monitors and relay cards available

Intrinsic Safety Option

If you wish to monitor equipment that is located in hazardous atmospheres,

the 3500 Monitoring System has a range of I/O modules with internal zener barriers.

These modules provide an Intrinsically Safe interface between the 3500

rack and the transducers located in the hazardous area.

3500 Monitoring System

The 3500 is a full-feature monitoring system whose design incorporates the latest in proven processor technology.

In addition to meeting the above stated criteria, the 3500 adds benefit in the following areas:

• Enhanced operator information

• Improved integration to plant control computer

• Reduced installation and maintenance cost

• Improved reliability

• Intrinsic Safety (IS) option

The following sections discuss these benefits in more detail.

Enhanced Operation Information

The 3500 design includes features to both enhance the operator’s information

and present this information so that the operator may easily interpret it.

These features include:

• Improved data set

– Overall amplitude

– Probe gap voltage

– 1X amplitude and phase

– 2X amplitude and phase

– Not 1X amplitude

• Windows®-based Operator Display Software

• Data displayed at multiple locations

Monitoring and computerized vibration information systems provide the information

you need to assess the mechanical condition of rotating and reciprocating machinery.

These systems continuously measure and monitor various supervisory parameters

and provide crucial information for early identification of machinery problems such as imbalance,

misalignment, shaft crack, and bearing failures.

As such, these systems are an efficient and effective means of satisfying plant management,

engineering, and maintenance concerns for:

• Increasing plant safety by minimizing the occurrence of hazardous conditions or catastrophic failures.

• Improving product quality by minimizing process variances caused by improperly operating equipment.

• Maximizing plant availability by servicing only those machines that require it and providing more efficient turnarounds.

• Reducing plant operating costs by minimizing unplanned shutdowns and by making more efficient use of maintenance resources.

For protection of critical machinery, we highly recommend that you permanently install continuous monitoring systems.

The term “protection” means that the system can shut down machinery on alarm, without human interaction.

These systems include applicable transducers, each with its own dedicated monitoring circuitry and alarm setpoints.

The 3500 Monitoring System is the newest addition to the family of continuous monitoring systems offered by Bently Nevada, LLC.

Related Documents

For probe information, refer to the following

manuals:

n 3300 XL 8mm & 3300 5mm Proximity

Transducer System User Guide

(Document 141078)

n 3300 XL NSv Proximity Transducer System

User Guide (Document 147357)

n 3300 XL 11mm Proximity Transducer

System Installation User Guide

(Document 146255)

n Radiation Resistant Probe and Proximitor

System (Document TW8029407)

Sleeve length is determined by the location in

which the probe and housing are installed. The

probe lead must be longer than the sleeve.

Sleeve lengths longer than 304 mm (12 inches)

require additional sleeve support to reduce the

vibration associated with unsupported long sleeve lengths.

Bently Nevada offers a probe support and oil

seal (part number 37948-01) for long sleeves

that must go through an inner bearing

housing. We also make custom sleeve supports.

The 21000 and 24701 Proximity Probe Housing Assemblies are

available with Canadian Standards Association (CSA)

approvals. They are rated explosion proof for hazardous areas.

You can order hazardous area approved proximity probes

with 21000 aluminum and 24701 stainless steel housings for

intrinsically safe applications. Both housings

are certified as CSA Type 4 enclosures and are

fully compliant with the American Petroleum

Institute’s (API) 670 Standard for externally

mounted proximity probe housings.

The 164818 Compact Proximity Probe Housing is

also available for applications with space

restrictions. Ceramic capped probes are

available with the 164818 housing.

Sleeve length is determined by the location in

which the probe and housing are installed. The

probe lead must be longer than the sleeve.

Sleeve lengths longer than 304 mm (12 inches)

require additional sleeve support to reduce the

vibration associated with unsupported long sleeve lengths.

Bently Nevada offers a probe support and oil

seal (part number 37948-01) for long sleeves

that must go through an inner bearing

housing. We also make custom sleeve supports.

Description

To externally mount proximity probes, use one of these allmetal Proximity Probe Housing Assemblies:

l 21000 aluminum probe housing assembly

l 24701 stainless steel probe housing assembly

The 21000 and 24701 Proximity Probe Housing Assemblies

consist of the following parts:

l A dome cover that screws into the body of the housing

l Threaded ports for conduit connections

l A probe sleeve of optional length

l 0-rings

l A reverse mount proximity probe

l A thread seal

l Optional conduit fittings

l An optional standoff adapter

A newer 31000/32000 proximity probe housing

assembly is available with more flexible mounting

options, better environmental resistance, and other

improved features. We recommend this proximity

probe housing assembly for installations where an

explosion proof housing is not required. See 31000 and

32000 Proximity Probe Housings product datasheet

(document 141610).