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SKF CMPT CTU User Manual

SKF CMPT CTU
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SKF Copperhead Transmitter Unit (CMPT CTU)
for Machinery Fault Detection
Copyright © 2011 by SKF Reliability Systems
All rights reserved.
Aurorum 30, 977 75 Luleå
Sweden
Telephone: +46 (0) 920 758 00, Fax: +46 (0) 920 134 40
Part No. 32163100
Revision D
Instruction Manual
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SKF CMPT CTU Specifications

General IconGeneral
Supply voltage10 - 30 V DC
Output signal4-20 mA
Housing MaterialStainless steel
Operating temperature-40°C to +85°C
Storage Temperature Range-40 to 85 °C
Accuracy±0, 5 % FS

Summary

Features of the CMPT CTU

Front Panel Controls and Indicators

Details on user-configurable front panel features like switches, indicators, and connectors.

SENSOR OK Indicator Lamp

Explains the states and meaning of the SENSOR OK lamp for fault detection.

Communication and Auxiliary Power Outputs

Details the CAN-bus interface and auxiliary 24V DC power output for external devices.

Specifications

Input Signal and Environmental Specifications

Covers sensor input types, sensitivity, and environmental operating conditions.

Mechanical and Electrical Characteristics

Details physical construction, power requirements, and consumption.

Vibration Analysis Modes and Frequency Ranges

Lists and describes vibration analysis modes and their frequency bandwidths.

Analog Output Signal Characteristics

Explains vibration and temperature analog output signal scales and formats.

Approvals and Certifications

Lists relevant industry certifications and standards for the device.

Dimensions and Terminals

Front Panel Layout and Switches

Diagram and explanation of front panel layout, including rotary switches and indicators.

Connector Pinout and Assignment

Detailed mapping of terminal pins to specific signals and functions.

Safety and Cautionary Information

General Installation and Handling Precautions

Guidelines for safe installation and operation of the CMPT CTU.

Electrical Hazard and Surge Protection

Critical warnings regarding voltage, electrical anomalies, and surge protection.

Output Signal Scaling

Vibration Output Scaling

Explains how vibration output scales are derived from sensor and settings.

Temperature Output Scaling

Details the conversion of temperature readings to analog output signals.

Installation and Wiring

General Wiring and Placement Guidelines

Recommendations for sensor placement, wiring, and environmental considerations.

Standard Wiring Configurations

Wiring diagrams for basic vibration and temperature transmitter setups.

Advanced Wiring Scenarios

Covers connections for DCL modules and parallel CTU setups.

Output Interpretation and Classification

Vibration Severity Assessment

Guidance for judging vibration levels based on machine classifications and ISO standards.

System Integration

Interface with Dataloggers and Monitoring Systems

How to connect the CTU to external dataloggers and vibration analysis systems.

CTU CAN-bus Communication

CAN-bus Network Configuration

Details on wiring, termination, and setting up multiple CTUs on a CAN-bus.

CAN Protocol and Message Formatting

Explains the CAN message structure, ID format, and protocol layers.

CTU Services, Identification, and Addressing

Procedures for identifying CTUs, using services, and managing unit addresses.

Retrieving and Interpreting Measurement Data

How to request and interpret overall measurement values via CAN-bus.