Emerson Rosemount PDS42 Quick Start Manual
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Emerson Rosemount PDS42 Quick Start Manual

Emerson Rosemount PDS42 Quick Start Manual

Acoustic pig detector non-intrusive pig detection
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Quick Start Guide
MS-00825-0200-3636, Rev AA
March 2025
Rosemount
™
PDS42 Acoustic Pig
Detector
Non-intrusive Pig Detection

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Summary of Contents for Emerson Rosemount PDS42

  • Page 1 Quick Start Guide MS-00825-0200-3636, Rev AA March 2025 Rosemount ™ PDS42 Acoustic Pig Detector Non-intrusive Pig Detection...
  • Page 2 When installing in a hazardous location, use only appropriately listed or Ex-certified cables, glands and adapters in cable/conduit entry. If not sourcing the field cable from Emerson, ensure the selection is suitable for the location (including protection type) and maximum expected ambient temperature.

  • Page 3: Table Of Contents

    Using non-nuclear-qualified products in applications that require nuclear-qualified hardware or products may cause inaccurate readings. For information on Rosemount nuclear-qualified products, contact an Emerson sales representative. Note: The equipment is designed to be installed in an area of up to and including Pollution Degree 4.
  • Page 4 March 2025 Quick Start Guide www.Emerson.com...

  • Page 5: Overview

    Overview This guide provides basic guidelines for the installation, configuration, commissioning, operation and maintenance of the Rosemount PDS42 Acoustic Pig Detector. This guide is also available electronically at Emerson.com/Global. This transmitter is a non-intrusive instrument that detects the passage of a pig through a pipe.

  • Page 6: What's In The Box

    Quick Start Guide 1.1  What's in the box? The device is delivered in a cardboard box containing: • 1 x Rosemount PDS42 Acoustic Pig Detector • 1 x Mounting socket • 1 x Mounting strap kit including strap and worm drive •...
  • Page 7 SAM42/PDS42 Commissioning app is available for download on Emerson Software Application Portal (https://www.emerson.com/en-gb/ support/software-downloads-drivers). The license notice for SAM42/PDS42 Commissioning Application is available as a .txt file on the...
  • Page 8 The Installation Kit Extended includes the minimum tools listed in Installation Kit Essentials and on top of it all the necessary tooling to facilitate the installation and commissioning of the product as detailed in Physical installation. See Figure 1-3. www.Emerson.com...
  • Page 9 Quick Start Guide March 2025 Figure 1-3: SAM42/PDS42 Installation Kit Extended Note The installation kits are not supplied with the product as standard. Field cable is orderable and supplied separately to the device. Typically, one installation kit per site should suffice. www.Emerson.com...

  • Page 10: Preparing For Installation

    2  Preparing for installation 2.1  Preparation at location of installation Before proceeding to install and commission the Rosemount PDS42 Acoustic Pig Detector, ensure the following have been completed: Procedure 1. Identify the location where the monitor will be installed. This would typically be mounted in a straight pipeline section,...
  • Page 11 2.2  Device ID configuration Rosemount PDS42 Acoustic Pig Detector will have the device ID set to 1 by default. When installing multiple devices on the same bus, change/configure the devices so that they have a unique ID, as not to be confused later.
  • Page 12 2. Connect the configuration cable to the tablet or PC which will be running the commissioning application. 3. Verify that the power light (green led) is blinking every second. This indicates that the device is powered. www.Emerson.com...
  • Page 13 4. Open the commissioning application. The window below will appear: a. Select the correct serial port (which can be found in Windows Device Manager). ™ b. Baud rate needs to remain at 19200. c. Parity needs to remain Even. d. Press Open Serial. www.Emerson.com...
  • Page 14 5. The window showing connection to the transmitter has been established will appear. Note This is the home window which will show the operational status of the monitor. a. From this window, press the Settings button to go to the Settings window. www.Emerson.com...
  • Page 15 Once entered, press Apply to write this to the device. d. Press OK to return to the home screen. 7. After pressing OK, the Settings window closes. The device remains connected. The new slave ID and the new Device name are visible on the main screen. www.Emerson.com...
  • Page 16 Press the Scan button, then the application will look for all available IDs between the configurable Start Slave ID and End Slave ID. b) Using the ID dropdown list, select the ID previously created. c) Press the Connect button to reestablish communication with the device. www.Emerson.com...

  • Page 17: Physical Installation

    Related information Installing mounting socket onto the pipe with strapping for pipes > NPS Installing Rosemount PDS42 on small diameter pipes (NPS 2) using U-bolts Installing the Rosemount PDS42 onto the mounting socket 3.1 ...
  • Page 18 Figure 3-1: Sensor Operating Temperature Limits for Flameproof ST Variant A. Maximum permitted ambient temperature B. Maximum permitted process temperature Figure 3-2: Sensor Operating Temperature Limits for Intrinsic Safety ST Variant A. Maximum permitted ambient temperature B. Maximum permitted process temperature www.Emerson.com...

  • Page 19: Device Orientation

    When device is installed onto piping, the orientation is controlled as follows. ST version up to 266 °F (130 °C) — Ensure there is a space between the detector housing and any pipe insulation to allow the heat to www.Emerson.com...
  • Page 20 3-6. 3.2.1  Standard temperature location Procedure The Rosemount PDS42 detector is mounted in a straight pipeline section, normally after the PIG launcher and before the PIG receiver. Excessive levels of unwanted noise may in the worst case compromise the measurement principle. Care should be taken to avoid installation near valves or too close to the Pig receiver/ launcher.
  • Page 21 The same installation methods can be used as described in Standard temperature location when installing Rosemount PDS42 HT version. However, additional consideration is needed when choosing the mounting orientation due to the higher process temperatures. The device must always be mounted horizontally (3 o’clock or 9 o’clock) or in some cases at the base (6 o’clock) to minimize convective heat...

  • Page 22: Surface Preparation

    Installing mounting socket onto the pipe with strapping for pipes > NPS 2 This section describes how to install the mounting socket for the Rosemount PDS42 Acoustic Pig Detector onto pipe work. Follow the sequence detailed below for a successful installation: Note The same mounting socket is used on all pipe diameters from NPS 2 to NPS 48.
  • Page 23 Figure 3-7: Illustration of mounting on 4-in. pipe (NPS 4) for a standard temperature detector Figure 3-8: Illustration of mounting on 6-in. pipe (NPS 6) for a standard temperature detector Figure 3-9: Illustration of mounting on 6-in. pipe (NPS 6) for a high temperature detector www.Emerson.com...
  • Page 24 March 2025 Quick Start Guide Figure 3-10: Illustration of mounting on 16-in. pipe (NPS 16) for a standard temperature detector Figure 3-11: Illustration of mounting on 16-in. pipe (NPS 16) for a high temperature detector www.Emerson.com...
  • Page 25 Repeat with the second strap. 4. Place the mount onto the pipe surface, with the straps wrapping around the pipe. Insert the free end of the strap into the free worm drive and tighten to a torque detailed below. www.Emerson.com...
  • Page 26 When torquing the worm drives, ensure that the band which has the two worm drive band mounted remains opposite to the device. Refer to Figure 3-12. Once the straps have been torqued, cut any excess strapping using the tinsnips. Figure 3-12: Ideal location of the worm drive band www.Emerson.com...
  • Page 27 Quick Start Guide March 2025 3.5  Installing Rosemount PDS42 on small diameter pipes (NPS 2) using U-bolts For installing on small diameter pipes, U-bolts replace the strapping which is normally used. This section describes the installation using U-bolts rather than strapping. This can be applied to both the standard temperature and high temperature variants of the product.

  • Page 28: Electrical Requirements

    If available, a torque screwdriver would be convenient to use as well. Once the installation of the mount on a small pipe has been completed, proceed to Installing the Rosemount PDS42 onto the mounting socket to install the device on the mounting socket.
  • Page 29 Field cable and cable termination • The recommended field cable for Rosemount PDS42 with Flameproof protection is 20110626 BFOU(I) M 250 V: Shielded twisted two pairs (one pair for power and one for signal), wire cross-section 0.75 mm , L/R = 87 μH/ohm (max).
  • Page 30 3-13. If switch number two is set to ‘closed’ (up) position, the device connects the 120 Ω termination resistor to the RS485 loop. It is recommended that the last device in a multidrop configuration to be set to Closed. Figure 3-13 shows the connector in Open position. www.Emerson.com...
  • Page 31 PE or if the connection is poor, then the sensor’s enclosure should be grounded (PE). Each installation has its own particularities but noise issues can be avoided by following the simple steps described above. www.Emerson.com...
  • Page 32 2. Feed the wires through the device housing. Tighten the gland onto the housing until it is in full contact with the device housing. Using a 24 mm spanner, ensure that the gland is tightened fully in accordance with the manufacturer’s instructions. www.Emerson.com...
  • Page 33 The connections from left to right are: Communication –ve, Communication +ve, Power –ve, Power +ve. 4. Insert the connector into the socket in the device with the excess wire looped around the inside of the device housing. www.Emerson.com...
  • Page 34 (the lid should ground out on the device housing). Related information Configuration and commissioning Rosemount SAM42 Acoustic Particle Monitor 3.8  Installing the Rosemount PDS42 onto the mounting socket This section describes the process of installing the transmitter onto the mounting socket to ensure that it functions correctly. Procedure 1.
  • Page 35 Note When tightening the nuts, ensure that the flange remains parallel to the mounting socket on all sides. This will ensure that the waveguide of the sensor is flush against the measurement surface. www.Emerson.com...
  • Page 36 Repeat until gauge legs are touching the flange, and in contact with the top of the nut.  CAUTION When tightening the nuts and compressing the springs, be careful not to get clothing or body parts caught as there is a www.Emerson.com...
  • Page 37 If the socket is not properly in contact with the pipe, restart from Installing mounting socket onto the pipe with strapping for pipes > NPS 2 Installing Rosemount PDS42 on small diameter pipes (NPS 2) using U-bolts depending on the mounting option. www.Emerson.com...

  • Page 38: Configuration And Commissioning

    2. Open the commissioning app. 3. Select the COM port to which the converter is assigned (Windows Device Manager can be used to identify the COM ™ port). Baud rate should be 19200 and Parity should be Even. 4. Then, press Open Serial. www.Emerson.com...
  • Page 39 • Perform a sandpaper test while monitoring the raw signal trend window in the main menu of the SAM42/PDS42 Commissioning app. A signal peak above 50 μv should appear as a response to the sandpaper test. www.Emerson.com...

  • Page 40: Device Configuration

    Once an appropriate raw signal response has been obtained, the detector installation has been checked OK and is ready for calibration. Note Calibration should only be carried out by Emerson personnel or personnel trained by Emerson. 4.3  Device configuration The Rosemount PDS42 must be correctly configured to provide reliable pig detection.
  • Page 41 Adjusting these parameters accordingly will result in improved detection accuracy and system reliability. 4.4  Saving and importing device configurations Once the detection coefficients have been written to the device, it is possible to export the configuration. The configuration may then be moved to another device. www.Emerson.com...
  • Page 42 Press the Export button in the bottom left-hand corner of the window to store this file for future use. Import procedure Press the Import button in the bottom left-hand corner of the window and select the desired file to load in a previous .sam42 configuration file. www.Emerson.com...

  • Page 43: Operation

    Figure 5-1: Suggested wiring diagram into DCS safe area for an Ex-db Configuration A. Hazardous area B. Safe area C. Rosemount PDS42 D. Pipe E. 4-Wire field cable F. PSU (24 Vdc) G. Distributed Control System (DCS) www.Emerson.com...

  • Page 44: Digital Interface

    H. Distributed Control System (DCS) 5.1  Digital interface The Rosemount PDS42 can be interfaced directly to the Process/ Distributed Control System (PCS/DCS), or to a permanent server running Fieldwatch software, or to a service computer running the SAM42/PDS42 Commissioning application. See diagrams below reflecting all interface options.
  • Page 45 5.1.2  Distributed Control System (DCS)/ Process Control System (PCS) interface Each Rosemount PDS42 is a Modbus slave unit with a unique Modbus slave ID. To maintain a polling rate of one reading per second, ensure that the conditions below are taken into consideration when connecting multiple devices are chained together.
  • Page 46 E. Power supply, 24 Vdc F. Distributed Control System (DCS) If a static velocity is set, this will have impact on device accuracy. For optimal accuracy results, it is recommended that a live flow rate is supplied from the DCS/PCS to the device. www.Emerson.com...
  • Page 47 G. Power and communication cable H. Distributed Control System (DCS) 5.1.3  Interface to a Fieldwatch server The Rosemount PDS42 device can also be connected to a permanent server with Fieldwatch software. The server handles all communication with the device. With a permanent server connected to the device, the server can act as one single Modbus slave against DCS/PCS.
  • Page 48 H. Safety barriers (separate for power and communication) The device set-up in Fieldwatch is performed by Emerson service personnel. Note Fieldwatch is a software that Emerson is maintaining but no longer developing (not adding new features/ enhancements) but the device www.Emerson.com...
  • Page 49 Quick Start Guide March 2025 is compatible with Fieldwatch to support upgrades of the existing installed base running Fieldwatch. www.Emerson.com...

  • Page 50: Reference Information

    Temperature float32 Debris Indicator float32 Pig Passed Reset uint16 Enable Pig Detection uint16 Configuration data/ Diagnostics System Status uint16 Reset Counter uint16 Uptime (s) uint32 Device identification Firmware Version uint8 [16] Hardware Version uint8 [12] Serial Number uint8 [12] www.Emerson.com...

  • Page 51: Engineering Units

    This section contains details and further information which needs to be taken into consideration when installing a Rosemount PDS42 Acoustic Pig Detector. 6.2  Engineering units The Rosemount PDS42 Acoustic Pig Detector supports only engineering units according to the International System of Units (SI).
  • Page 52 March 2025 Quick Start Guide is ~3 kg and it can cause damage if accidentally dropped. Use scaffolding if required. To physically install the new detector, follow the steps detailed in Physical installation. www.Emerson.com...

  • Page 53: Maintenance

    See Rosemount PDS42 Acoustic Pig Detector Product Data Sheet list for details. Note In case of a detector replacement, call for Emerson service engineer or personnel trained and authorized by Emerson for the configuration of the device. www.Emerson.com...
  • Page 54 March 2025 Quick Start Guide Figure 7-1: Installation Control Drawing A. Rosemount PDS42 Transmitter B. Mounting socket C. Loading springs D. Compression nut E. Pipeline F. Mounting strap G. Field cable H. Locking nut I. Product label Note Dimensions are in inches (millimeters).

  • Page 55: Preventive Maintenance

    Once an appropriate raw signal response has been obtained, the detector installation has been checked OK. 7.1.3  Instructions for cleaning and maintenance Remove salt buildup, rust, and other contamination found during visual inspection or routine testing. www.Emerson.com...

  • Page 56: Product Certifications

    8.4  Electromagnetic compatibility (EMC) The Rosemount PDS42 Acoustic Pig Detector meets all industrial environment requirements of the 2014/30/EU (EMC Directive); FCC/CFR 47:Part 15B 15.109 and 15.107, Class A; ICES 003:Issue 7; ANSI C63.4:2014.
  • Page 57 1. Product must be installed per NEC 70 Section 501 for hazardous locations. 2. Product not intended for connection with rigid metallic conduits as it was not tested for that configuration. 8.7  Europe 8.7.1  ATEX Flameproof SGS23ATEX0042X Certificate: EN IEC 60079-0: 2018 and EN 60079-1: 2014 Standard: www.Emerson.com...
  • Page 58 3. The painted enclosure may present a potential electrostatic ignition hazard and must not be rubbed or cleaned with a dry cloth. 4. The maximum input power is restricted to 0.5 W. 8.7.2  ATEX Intrinsic safety SGS24ATEX0040X Certificate: EN IEC 60079-0: 2018 and IEC 60079-11: 2023 Standard: www.Emerson.com...
  • Page 59 Ex-db IIB T5...T4 Gb (–40 °C ≤ T ≤ +80 °C) High Temperature (HT) Ex-db IIB T6 Gb (–40 °C ≤ T ≤ +75 °C) II 2 G Ex-db IIB T5...T2 Gb (–40 °C ≤ T ≤ +80 °C) www.Emerson.com...
  • Page 60 2. The equipment is not capable of withstanding the 500 V dielectric strength test required by clause 6.9 of IEC 6007911: 2023. This must be taken into account when installing the equipment. www.Emerson.com...
  • Page 61 Quick Start Guide March 2025 8.9  8.9.1  ECAS Ex Flameproof 23-11-22700/Q23-11-048835/NB0002 Certificate: Manufacturing location address Permasense Ltd, Emerson, Alexandra House, Newton Road, Manor Royal, Crawley, RH10 9TT, UK Phone: +44 20 3002 3672 www.Emerson.com...

  • Page 62: Declaration Of Conformity

    March 2025 Quick Start Guide 9  Declaration of Conformity www.Emerson.com...
  • Page 63 Quick Start Guide March 2025 www.Emerson.com...
  • Page 64 2025 Emerson. All rights reserved. Emerson Terms and Conditions of Sale are available upon request. The Emerson logo is a trademark and service mark of Emerson Electric Co. Rosemount is a mark of one of the Emerson family of companies. All other marks are the property of their respective owners.

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