Allen-Bradley 1442 User Manual

Eddy current probe system

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User Manual
1442 Eddy Current Probe System

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Summary of Contents for Allen-Bradley 1442

  • Page 1 User Manual 1442 Eddy Current Probe System...
  • Page 2 Arc Flash. Arc Flash will cause severe injury or death. Wear proper Personal Protective Equipment (PPE). Follow ALL Regulatory requirements for safe work practices and for Personal Protective Equipment (PPE). Allen-Bradley, Rockwell Software, and Rockwell Automation are trademarks of Rockwell Automation, Inc. Trademarks not belonging to Rockwell Automation are property of their respective companies.
  • Page 3 Summary of Changes This manual contains new and updated information. Changes throughout this revision are marked by change bars, as shown to the right of this paragraph. New and Updated Temperature ranges and wire sizes were corrected as appropriate in this manual. Information Topic Page...
  • Page 4 Summary of Changes Notes: Rockwell Automation Publication ICM-UM004C-EN-E - February 2014...
  • Page 5: Table Of Contents

    Outer Dimensions and Part Nomenclature......17 1442 Sensor Outer Dimensions and Part Nomenclature ..17 Extension Cable Outer Dimensions and Part Nomenclature .
  • Page 6 Table of Contents Static Characteristic Effect Due to Side Wall....49 Frequency Characteristics ........50 Appendix A Wire the Unit to a Monitor System Cable Wiring/Laying Examples.
  • Page 7: Preface

    Preface This manual describes how to install and use the 1442 Series Eddy Current Probe System. The 1442 Series eddy current probe system performs non-contact measurement of the distance between the sensor and the measured object (target), and outputs a proportional voltage signal. The static component of the measurement is the "gap, "...
  • Page 8: System Configuration Example

    IMPORTANT and driver) to configure it as follows. If this system is not configured as shown below, or if the 1442 extension cable is not used in combining the 1442 sensor and driver, the output characteristics will differ dramatically. Figure 1 - System Configuration Example...
  • Page 9: Additional Resources

    These documents contain additional information concerning related products from Rockwell Automation. Resource Description 1442 Eddy Current Probe Systems Specifications Technical Data, publication 1442-TD001. Provides specifications for the 1442 Eddy Current Probe System. Turbine Supervisory Instrumentation System Selection Guide, publication GMSI10- Provides details to help you choose a Turbine Supervisory Instrumentation system.
  • Page 10 Preface Notes: Rockwell Automation Publication ICM-UM004C-EN-E - February 2014...
  • Page 11: Installation

    Chapter Installation This chapter describes how to install a 1442 Series Eddy Current Probe System. ATTENTION: Always ground the system. Never apply power until all wiring work and connection work has been completed. If this is not followed, there is a possibility of electrocution.
  • Page 12: Installation Environment

    Chapter 1 Installation Installation Environment Driver Installation Environment Install the driver in a location that satisfies the following environmental and installation conditions. Environmental Conditions Feature Specification Ambient temperature Must be in a range of -30…80 °C (-22…176 °F) when devices are operating. Ambient humidity Must be in a range of 30…95% RH (noncondensing) when devices are operating.
  • Page 13: Sensor Installation Environment

    Installation Chapter 1 • Do not locate above heat emitting objects. Sensor Installation Environment Install the sensor at a location that satisfies the following environmental and installation conditions. Environmental Conditions Feature Specification Ambient temperature ATEX applications must be in a range of -35…80 °C (-31…176 °F) when devices are operating.
  • Page 14 Chapter 1 Installation • When placing other sensors next to each other, separate the sensor tops by not less than 10 times the sensor tip diameter to prevent interference. 40 mm (1.57 in.) or more 40 mm (1.57 in.) or more •...
  • Page 15 Installation Chapter 1 Table 1 - Installation Examples Example Description Example 4 If dimension X is less than 1.2 times the tip diameter, the measurement will be affected by the attachment plate. Example 5 If dimension Y is less than 3 times the tip diameter, the measurement will be affected by the attachment plate.
  • Page 16 Chapter 1 Installation The characteristics of output (V) and gap (mm) are as shown in the graph below. Speed Measurements Assumes measurements are made with a 5 mm or 8 mm probe. Figure 2 - Dimension of target (recommended for rotational speed measurement): mils A ≥...
  • Page 17: Extension Cable Installation Environment

    Ambient humidity Must be in a range of 30…95% RH (noncondensing) when devices are operating. Outer Dimensions and Part 1442 Sensor Outer Dimensions and Part Nomenclature Nomenclature 5 mm Sensor L1 = Unthreaded length L2 = Case length...
  • Page 18 Chapter 1 Installation 8 mm Sensor L1 = Unthreaded length L2 = Case length L3 = Cable length Reverse 8 mm Sensor L3 = Cable length Rockwell Automation Publication ICM-UM004C-EN-E - February 2014...
  • Page 19 Installation Chapter 1 11 mm Probes - Non Armored L1 = Unthreaded length L2 = Body length L3 = Cable length 11 mm Probes - Armored L1 = Unthreaded length L2 = Body length L3 = Cable length Rockwell Automation Publication ICM-UM004C-EN-E - February 2014...
  • Page 20 Chapter 1 Installation 18 mm Probes - Armored L1 = Unthreaded length L2 = Body length L3 = Cable length 25 mm Probes - Armored L1 = Unthreaded length L2 = Body length L3 = Cable length Rockwell Automation Publication ICM-UM004C-EN-E - February 2014...
  • Page 21 Installation Chapter 1 25 mm Probes - Flange Mount, Armored 2 = 4 holes in flange, 14 mm deep with M6 threads L3 = Cable length, +30% / -0% 50 mm Probes - Armored L2 = Body length L3 = Cable length Rockwell Automation Publication ICM-UM004C-EN-E - February 2014...
  • Page 22: Extension Cable Outer Dimensions And Part Nomenclature

    Chapter 1 Installation Extension Cable Outer Dimensions and Part Nomenclature 5, 8, and 11 mm Probe Extension Cables - Non Armored 5 and 8 mm Probe Extension Cables - Armored Rockwell Automation Publication ICM-UM004C-EN-E - February 2014...
  • Page 23 Installation Chapter 1 11 mm to 50 mm Probe Extension Cables - Armored Rockwell Automation Publication ICM-UM004C-EN-E - February 2014...
  • Page 24: Driver Outer Dimensions And Part Nomenclature

    Chapter 1 Installation Driver Outer Dimensions and Part Nomenclature Rockwell Automation Publication ICM-UM004C-EN-E - February 2014...
  • Page 25: Install The Driver

    Installation Chapter 1 Install the Driver The driver can be installed on a DIN rail, or it can be mounted on a panel or wall by using the provided adapter. Mount the Driver on the Housing or Panel The driver can be directly mounted on the panel. When attaching to panels or mounts, make sure the surface is strong and flat.
  • Page 26: Mount The Driver To A Din Rail

    Chapter 1 Installation Mount the Driver to a DIN Rail The driver can be mounted to a 35 mm DIN rail. 1. Hook the upper tabs on the back of the driver onto the DIN rail. 2. Push the driver into the DIN rail until a click is heard from the slide lock. If the driver does not fit onto the DIN rail well, pull on the slide lock and push the driver against the DIN rail.
  • Page 27: Use A Sensor Mounting Bracket

    Installation Chapter 1 Use a Sensor Mounting Bracket If you need a mounting bracket for the sensor, construct your own mounting bracket. The mounting bracket can be readily machined at your site. The bracket must provide a stable, secure, platform that satisfies the conditions described in Sensor Installation Environment on page When using a sensor mounting bracket, use the following steps to install the sensor.
  • Page 28: Use A Stinger

    Figure 3 - Sensor Mounting Bracket Installation Example Use a Stinger 1442 Series 8-mm reverse-mount probes can be used with commonly available probe holders. Stingers (also known as sensor sleeve), are provided with the probe holder. Stingers can also be purchased from probe holder suppliers or can often be machined locally.
  • Page 29 Installation Chapter 1 2. Attach the sensor to the sensor sleeve. 3. Attach the sensor sleeve to the mounting (machine casing). 4. Adjust the gap between the sensor top face and the target. Figure 4 - Sensor Sleeve Installation Example Rockwell Automation Publication ICM-UM004C-EN-E - February 2014...
  • Page 30: Adjust The Gap

    4. Tighten the jam nut with the following torque. Table 2 - Torque Requirements Tightening Torque Sensor Example N•m kgf-cm lb•in 1442-PS-05xxM (5 mm metric) 1442-PS-0503M0010N 35.4 1442-PS-05xxE (5 mm English) 1442-PS-0512E0010N 12.4 1442-PS-08xxM (8 mm metric) 1442-PS-0803M0010N 75.2...
  • Page 31 1557 1442-PS-50xxE (50 mm English) 1442-PS-5020E0010A 2000 1734 1442-PR-08xxM (8 mm rev mnt metric) 1442-PR-0803M0505N 75.2 1442-PR-08xxE (8 mm rev mnt English) 1442-PR-0812E0205N 60.2 ATTENTION: Make sure to tighten the jam nut at the specified torque. If tightened with excessive torque, the sensor can be damaged. If the tightening torque is too small, it can come loose.
  • Page 32: Connect The Wiring

    Chapter 1 Installation Connect the Wiring This section describes the wiring connections for the 1442 Series Eddy Current Probe system. The 1442 Series includes color–coded bands on the ends of each component. The color–coded bands help you identify the length of the extension cable and the length of the probe so that the total system length (5 or 9 meters) can be matched to the appropriate driver.
  • Page 33: Connect The Extension Cable

    Make sure the color band on the sensor cable matches the color band on the probe end of the extension cable. See 1442 Series Color Band Table on page 1. Confirm that there are no foreign objects in the sensor and extension cable connectors.
  • Page 34: Connect The Sensor

    Make sure the color band on the extension cable matches the color band on the probe driver. See 1442 Series Color Band Table on page 1. Confirm that there are no foreign objects in the sensor (or extension cable) and in the driver sensor input connector.
  • Page 35: Connect The Module

    Chapter 1 Connect the Module The 1442 sensors can be connected to many different Allen-Bradley 1440 XM Series or 1444 Dynamix® Series modules. Refer to the appropriate Module User Manual for wiring requirements and instructions on how to wire the sensor to the module.
  • Page 36 Chapter 1 Installation Warm-up is necessary to collect accurate data. 3. Connect the tester (voltmeter) across the Input Signal and Input Common terminals on the measurement module base and read the voltage. Refer to Standard Static Characteristics on page 41 to make sure that the desired set gap voltage is indicate Data indicated in...
  • Page 37: Recommended Specifications For The Monitor Cable

    Installation Chapter 1 c. After adjustment, tighten the sensor jam nut to the specified torque value (see table on page 30). ATTENTION: Always tighten the lock nut at the specified torque. The measurement precision described in the specifications will be satisfied approximately five minutes after turning on the power.
  • Page 38 Chapter 1 Installation Notes: Rockwell Automation Publication ICM-UM004C-EN-E - February 2014...
  • Page 39: Maintenance And Inspection

    Chapter Maintenance and Inspection This chapter describes the maintenance and inspection procedures for the unit. Periodic Inspection Intervals To maintain performance and secure system stability of the unit, inspect the system and its mounts for corrosion, properly-tightened or torqued fittings and connections, and component conditions annually.
  • Page 40: Troubleshoot The Unit

    Chapter 2 Maintenance and Inspection Troubleshoot the Unit Use the table below to troubleshoot problems with the unit. Symptom Possible Cause Recommended Action Output is 0V DC and does not change. Power is not on. Turn on the power. Unit is not connected properly. Refer to Connect the Wiring on page 32 to make sure the unit is wired correctly.
  • Page 41: Individual Characteristic Data

    Chapter Individual Characteristic Data Characteristic Data This chapter describes static characteristics, temperature characteristics, and other characteristic data. Use this data to determine the gap. Standard Static Characteristics Target material is SCM440 flat face (diameter 15 mm or more). Rockwell Automation Publication ICM-UM004C-EN-E - February 2014...
  • Page 42: Sensor Temperature Characteristics

    Chapter 3 Individual Characteristic Data Sensor Temperature Characteristics System cable length is 5 m. Rockwell Automation Publication ICM-UM004C-EN-E - February 2014...
  • Page 43: Driver Temperature Characteristics

    Individual Characteristic Data Chapter 3 Driver Temperature Characteristics System cable length is 5 m. Rockwell Automation Publication ICM-UM004C-EN-E - February 2014...
  • Page 44: Static Characteristic Effect Due To Power Source Voltage Variation

    Chapter 3 Individual Characteristic Data Static Characteristic Effect Due to Power Source Voltage Variation Rockwell Automation Publication ICM-UM004C-EN-E - February 2014...
  • Page 45: Static Characteristic Effect By Target Material

    Individual Characteristic Data Chapter 3 Static Characteristic Effect by Target Material Rockwell Automation Publication ICM-UM004C-EN-E - February 2014...
  • Page 46: Static Characteristic Effect Due To Target Diameter

    Chapter 3 Individual Characteristic Data Static Characteristic Effect Due to Target Diameter Target material is SCM440. Rockwell Automation Publication ICM-UM004C-EN-E - February 2014...
  • Page 47: Static Effect By Target Curved Surface

    Individual Characteristic Data Chapter 3 Static Effect by Target Curved Surface Target material is SCM440. Rockwell Automation Publication ICM-UM004C-EN-E - February 2014...
  • Page 48: Static Characteristic Effect Due To Target End Face

    Chapter 3 Individual Characteristic Data Static Characteristic Effect Due to Target End Face Target material is SCM440. Rockwell Automation Publication ICM-UM004C-EN-E - February 2014...
  • Page 49: Static Characteristic Effect Due To Side Wall

    Individual Characteristic Data Chapter 3 Static Characteristic Effect Due to Side Wall Target and side wall material is SCM440. Rockwell Automation Publication ICM-UM004C-EN-E - February 2014...
  • Page 50: Frequency Characteristics

    Chapter 3 Individual Characteristic Data Frequency Characteristics Rockwell Automation Publication ICM-UM004C-EN-E - February 2014...
  • Page 51: Wire The Unit To A Monitor System

    Appendix Wire the Unit to a Monitor System The 1442 Series Probe System is designed to satisfy the API-670 standard. Any monitor designed to connect API-670 probes can be used with these sensors. Consider the following recommendations when wiring the probe driver to a monitor: ·...
  • Page 52: Cable Wiring/Laying Examples

    Appendix A Wire the Unit to a Monitor System Cable Wiring/Laying The following illustrations provide examples on how to wire and lay the cable. Examples Good Example Bad Example Rockwell Automation Publication ICM-UM004C-EN-E - February 2014...
  • Page 53: Index

    12 1442 extension cable sensor installation 26 connecting 33 gap adjustment 30 dimensions 22 mounting bracket 27 1442 reverse mount probe stinger 28 dimensions 18 sensor installation environment 13 1442 Sensors set gap voltage 35 connecting 34 specifications...
  • Page 54 Index Rockwell Automation Publication ICM-UM004C-EN-E - February 2014...
  • Page 56 Rockwell Automation Support Rockwell Automation provides technical information on the Web to assist you in using its products. http://www.rockwellautomation.com/support you can find technical and application notes, sample code, and links to software service packs. You can also visit our Support Center at https://rockwellautomation.custhelp.com/ for software updates, support chats and forums, technical information, FAQs, and to sign up for product notification updates.

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