Product Manual MNX10031 / REV B

MODEL DX3301/ PRO DP/DD/DC 1001 Series

5 & 9 Meter System Lengths

Proximity Probe Assembly

(Probe, Extension Cable, Driver)

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SECTION I OVERVIEW ............................................................................................................................... 2

INTRODUCTION .............................................................................................................................................. 2 DESCRIPTION ................................................................................................................................................. 2 SPECIFICATIONS .............................................................................................................................................. 3

SECTION II INSTALLATION ........................................................................................................................ 5

MOUNTING ................................................................................................................................................... 5 PROBE CABLE CONNECTIONS ............................................................................................................................ 5 TERMINAL STRIP CONNECTIONS ......................................................................................................................... 6 CONNECTIONS FOR THE TYPICAL -24 VDC SYSTEMS ............................................................................................... 6 FIGURE 1. DRIVER ........................................................................................................................................... 6 POWER REVERSAL ........................................................................................................................................... 7 TARGET SURFACES .......................................................................................................................................... 7 FIGURE 2. PROBE TIP CLEARANCE ...................................................................................................................... 8

SECTION III OPERATION ........................................................................................................................... 9

OPERATION ................................................................................................................................................... 9

SECTION IV MAINTENANCE .................................................................................................................... 10

GENERAL .................................................................................................................................................... 10 WARRANTY ................................................................................................................................................. 10

Contents

file:///C:/Documents%20and%20Settings/donohuem/Desktop/MNX10031%20DRF%201-21-09%20INST%20MAN%20PROX%20PROBES%20MM%20(9-29-08TR).doc%23_Toc222027968

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Introduction This document contains information on the operation, installation and maintenance of the DX3301 & DP/DC/DD1001. This manual is an overview of the system and references the specific component manuals. User manuals are provided with the system for all configurable internal components.

Description The DX3301 & DP/DC/DD1001 Proximity Probe Assemblies utilize an eddy current that produces a negative voltage that is directly proportional to the gap distance between the probe and measured surface. The assembly consists of a proximity probe, extension cable and driver. The driver is a 3-wire device with connections for power, ground/common, and signal output. The driver is intended for use with a DC Negative power supply.

Section I

Overview

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Specifications Proximity Sensor Model PRO Version: DP 1001 Series Bently Compatible Version: DX3301 Type Eddy-Current Probe Standard Versions 8mm diameter 5 meter, 9 meter systems

8mm Probes Full Gap Range 100 mils (2.54 mm) Usable Gap Range 20 to 80 mils (0.254 mm to 2.286 mm) Sensitivity 200 mV/mil (7874 mV/mm)

Probe Connector Type Miniature, circular Connector 12-32 threaded

Integrated Probe Cable Type Triaxial, Teflon Jacketed Length Various Lengths Available Connector 12-32 threaded

Probe Cables and Extension Cables Model PRO Version: DC 1001 Series Bently Compatible Version: DX330130 Type Tri-axial Connector 12-32 threaded Length Various Lengths Available

Driver Output Maximum Range -0.7 to -21.5 Vdc (4140 SAE) Linear Range (nominal) -3 to -15 Vdc Accuracy 5% at the linear range end pts (5m) 6.5% at the linear range end pts (9m) Linearity 5% in linear range (5m) 6.5% in linear range (9m) Frequency Response 0 to 10 KHz (-10%) Rated Load Current 1.0 mA Allowed Short Circuit Duration Unlimited Accuracy and linearity specifications apply at 25C and -24 0.2 Vdc supply voltage

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Calibration Factors Probe Version Tip size/type Cable Length 3 to 50 feet Target Material SAE4140 Standard

Interface Connectors Standard Probe Connector Miniature Connectors Power Connection 2 #6 Phillips Head Screw Terminals Signal Out Connection 2 #6 Phillips Head Screw Terminals Auxiliary Signal Output BNC Jack

Operating Power Voltage -24 Vdc nominal Normal Operating Voltage Range -17.5 to -26 Vdc Absolute Maximum Voltage -26 Vdc Power Consumption 150mW, maximum

Isolation Case Isolation Isolated from all connections

Mechanical Enclosure Extruded Aluminum Dimensions 3.25 L x 1.1875 W x 2.42 H (82mm x 30mm x 61mm) Mounting Hole Spacing (Panel Mount) 2.00 (51 mm) x 2.00 (51mm)

Environmental Driver Ambient Operation Temperature -31F to 185F (-35C to 85C) Probe Ambient Operation Temperature -31F to 350F (-35C to 177C) Extension Cable Ambient Operation -31F to 350F (-35C to 177C) Temperature Driver Humidity 0 to 95% RH, non-condensing

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Mounting For most applications, it is recommended that the driver be mounted in a protective housing. More than one driver may share a single housing to simplify installation. Locate drivers in a place where easy access can be obtained. Excess probe cable length should be coiled up inside the housing. The PRO Proximity systems are available in 5 or 9 meters total length only. NOTE: Guard against oil and dirt getting into the connectors.

Probe Cable Connections The cable connected to the driver may be an integral part of the probe or an extension cable. The cable connects to the driver via the miniature connector. Only PRO Proximity Probe Cables should be used for the PRO Series Bently 3300 Cables can be used for the PRO Bently Compatible Series. Substitute cables from other sources should not be used, as they may not be electrically compatible and may seriously affect system accuracy.

IMPORTANT NOTE: DO NOT CUT CABLE TO REDUCE LENGTH.

Connections should be tight. Snug the connector screw collar, applying about 5 inch-lbs (0.6 N-m) of torque.

IMPORTANT NOTE: Do not over tighten the probe cable connection. Do not exceed a torque of 8 inch-lbs (0.9 N-m). Too much torque can damage the connector's insulator, break the epoxy bond, or twist the internal cable shield connections, compromising the drivers seal or electrical connections. IMPORTANT NOTE: Probe connectors must not touch any machine metal parts. Proper steps should be taken to isolate connectors from metal surface connector covers are available per request.

Section II

Installation

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Terminal Strip Connections Strain relief for the cable connections should be provided by means of compression glands or conduit fittings. For shielded cables, the shield should be connected at the central system only, and not at the driver.

Connections for Power Supply The driver has three terminal connections: Vt, COM and OUT. The power is connected to the Vt and COM terminals.

The COM (signal common or signal ground) terminal is isolated from the driver case. COM is not directly connected to the probe cable connectors.

The OUT terminal is the output signal connection, and is a negative voltage output, with the voltage going more negative (higher in magnitude) as the gap increases. COM is used for the output as well.

Figure 1. Driver

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Power Reversal The drivers are protected against reverse polarity.

Target Surfaces The target material directly affects the output from the system. Drivers are calibrated for SAE 4140 steel. If the target material is different from that specified and used for calibration, the output may be significantly inaccurate. For vibration monitoring of rotating shafts, the observed surface must have a roughness not to exceed 32 micro inches (

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Note: Shaft diameters should be uniform in target area, and free of keyways & oil slingers or mechanical damage.

Proper clearance around the probe tip must be provided. Refer to Figure 2. There should be no metal, other than the target, within a specified radius from the probe tip centerline over a distance from target back to the mounting surface.

Figure 2. Probe Tip Clearance

Setup and Adjustment When all connections to the driver have been made, and the probe is in place, apply power. For applications where the only data of interest is vibration level, where measuring the gap is not important, the voltage at the OUT (signal output) terminal, relative to the COM (common) terminal should be -9.0 +/- 0.5 volts for a mid range gap. Adjust the probe until this reading is obtained. For applications where the actual gap needs to be measured, adjust the probe until a reading is obtained that reflects the desired initial gap setting.

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Operation A PRO Probe Assembly operates in combination with a PRO Probe Driver. For the Bently Compatible PRO Series, the Probe Assembly can be interchanged with Bently 3300 Series components. The driver outputs a signal that is proportional to the gap between the probe tip and the target. The average gap corresponds to the DC component of the output. Vibration is measured by monitoring the DC variation of the signal simulating an AC component. All drivers have the same 20 volt output span. The output sensitivity of the driver is 200mV/mil for the most widely used 8mm 3/8-24 probes. This is based upon the 20V span divided by the nominal 100 mil range.

Section III Operation

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General There are no customer replaceable parts. The product should provide trouble-free continuous service under normal operating conditions.

Warranty If any PRO product should ever fail, we will repair or replace it at no charge, as long as the product was not subjected to misuse, natural disasters, improper installation or modification which caused the defect.

CONTACT INFORMATION: Connection Technology Center, Inc (CTC)

7939 Rae Blvd. Victor, NY 14564

1-800-999-5290 (US & Canada) 1-585-924-5900 (International)

sales@ctconline.com www.ctconline.com

Section IV Maintenance