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Pulsar Measurement MicroFlow-i Instruction Manual

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MicroFlow-i
Instruction Manual

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Summary of Contents for Pulsar Measurement MicroFlow-i

  • Page 1 MicroFlow-i Instruction Manual...
  • Page 3 Pulsar Process Measurement Limited. WARRANTY AND LIABILITY Pulsar Measurement guarantee for a period of 2 years from the date of delivery that it will either exchange or repair any part of this product returned to Pulsar Process Measurement...

  • Page 4: Table Of Contents

    Chapter 3 Locating The MicroFlow-i ................26 Preparation for Operation ..................... 30 General Maintenance ...................... 30 Sensor Maintenance......................31 Chapter 4 Understanding How The MicroFlow-i Works ........33 MicroFlow-I HART compatible ..................33 4-20 mA Device ......................... 33 Chapter 5 MicroFlow-i PC ....................34 Software installation ......................
  • Page 5 Chapter 6 Parameter Listing and Description ............45 Parameter Access ......................45 Device Information Parameters ................... 45 Processing Parameters ....................46 MicroFlow-i Firmware Upgrade ................... 50 MicroFlow-i HART Firmware Upgrade ..............52 Chapter 7 Troubleshooting ....................54 Chapter 8 Disposal ........................ 55 Notes ............................56...

  • Page 6: Chapter 1: Start Here

    MICROFLOW-I INSTRUCTION MANUAL CHAPTER 1: START HERE… Congratulations on your purchase of a Pulsar MicroFlow-i. This quality system has been developed over many years and represents the latest in high technology flow monitoring. It has been designed to give you years of trouble-free performance, and a few minutes spent reading this operating manual will ensure that your installation is as simple as possible.

  • Page 7: About The Microflow-I

    The MicroFlow-i’s compact and versatile design makes it easy to install and ideal for confined spaces. Housed in a robust enclosure coupled with a fully encapsulated microwave antenna, it provides an effective fit-and-forget flow velocity solution.

  • Page 8: Benefits

    The MicroFlow-i is also intrinsically safe (Ex ia) for Zone 0. The MicroFlow-i can be mounted via a rear 1” BSP to M20 thread adapter (supplied with unit). The MicroFlow-i is loop powered and gives a 4 to 20mA output which is proportional to the flow velocity. A ‘fault condition’ alarm will give out a reading of either 3.8mA or 22mA.

  • Page 9: Product Specification

    Accuracy Greater of +/- 0.5% or 0.05 m/s (0.1 ft/s) Install at an angle of 45° in line with flow. For more Optimum Installation information, see ‘Locating the MicroFlow-i sensor’ section of this manual. Max. channel width per sensor 1.5m...
  • Page 10 Start-up = 20mA. Average current = 60µA per hour Power Consumption when one velocity measurement is performed every 15 minutes Pulsar Measurement operates a policy of constant development and improvement and reserve the right to amend technical details, as necessary.

  • Page 11: Eu Certificate Of Conformity

    PULSAR MEASUREMENT EU Certificate of Conformity...

  • Page 12: Chapter 2 Installation

    Pulsar Process Measurement Limited. Power Supply Requirements The MicroFlow-i can operate from a DC supply of 10 to 28V. In all cases the unit typically consumes 0.52W of power, and will typically draw less than 22mA.

  • Page 13: Information Specific To Hazardous Area Installation

    7. The certificate number has an ‘X’ suffix that indicates that the following special condition of certification applies. In the case of the MicroFlow-i sensor, due to the housing and labels being non-conductive plastic care needs to be taken with regards to electrostatic charge. The equipment shall not be installed if the conditions are conductive to the build-up of electrostatic charge.
  • Page 14 Hazardous Area Specific Power Supply and barrier Requirements The MicroFlow-i operates from a DC supply of 10 – 28VDC and will typically draw less than 22mA. When connecting the sensor to the PC software with a HART modem, it is recommended to use a supply of at least 18VDC.
  • Page 15 PULSAR MEASUREMENT Typical wiring for the MicroFlow-i:...
  • Page 16 MICROFLOW-I INSTRUCTION MANUAL Important Information If the equipment is installed or used in a manner not specified in this manual, then the protection provided by the equipment may be impaired.
  • Page 17 PULSAR MEASUREMENT Loop Resistance For two wire operation, the maximum cable resistance allowable can be calculated from the graph below. For example, if an dBi Series Intelligent Transducer was supplied from 24V, the maximum total cable resistance is 600 ohms, for a typical 77 ohm /km cable this would mean a maximum cable length of 600/77 = 7.8km, remember this total cable resistance, so this...

  • Page 18: Location

    Pulsar distributor, which will ensure that the MicroFlow-i can be correctly installed. The bracket can be used if the MicroFlow-i sensor is to be mounted on its own in a specific location or along with a Pulsar dBi or dB level transducer. Please see ‘Angled Mounting Bracket’...

  • Page 19: Angled Mounting Bracket

    PULSAR MEASUREMENT Angled Mounting Bracket Part number: dBA0008MF 176mm Side view R20mm 22mm 22mm 100mm 12mm 90mm 130mm Top view...
  • Page 20 MICROFLOW-I INSTRUCTION MANUAL 100mm 20mm 20mm 60mm R20mm 100mm 4 off 12mm 60mm 26mm Rear view Important Information Using a spirit level, ensure that the Mounting Bracket is level before attaching the sensor to the bracket.

  • Page 21: Microflow-I Sensor

    PULSAR MEASUREMENT MicroFlow-i Sensor The dimensions of the sensor body are shown below in Fig.1 and Fig.2: 78 mm 1” BSP 73 mm 90 mm BOTTOM Green ‘Dot’ to be positioned on top of sensor. 45° Surface of measurement DON’T FORGET To obtain the most accurate results, ensure the device is mounted at a 45°...
  • Page 22 Fig.3 For correct installation, we recommend that the adapter is threaded on the cable, and carefully screwed onto the MicroFlow-i before fitting to the bracket. This will reduce the risk of any ’twisting’ in the cable. Ensure that the sensor is tightened, and the dot is in the correct position.
  • Page 23 PULSAR MEASUREMENT Fig.4 Central to the movement of flow in channel. Care should be taken not to overtighten the sensor when everything is connected, as seen in Fig.5 below, as this could cause damage to the housing. 305mm 215mm 205mm...
  • Page 24 MICROFLOW-I INSTRUCTION MANUAL When the sensor is mounted on the bracket with dB series level transducer, you can position the bracket in a way where the MicroFlow-i is obtaining measurements following the direction of the flow, or facing the direction of flow.

  • Page 25: Terminal Connection Details

    ‘Chapter 2–Power supply requirements’ and the instructions below. When wiring the MicroFlow-i the cable used is of a multicore design. The wire coding is shown below for ease of use when connecting the MicroFlow-i to monitor flow velocity: Bootlace Ferrules...

  • Page 26: Chapter 3 Locating The Microflow-I

    MICROFLOW-I INSTRUCTION MANUAL CHAPTER 3 LOCATING THE MICROFLOW-I For optimum accuracy install the MicroFlow-i where the flow is not turbulent. An ideal location for the sensor is in the centre of a long straight channel. Vertical drops, baffles, curves, or junctions can cause the velocity profile to be distorted.
  • Page 27 PULSAR MEASUREMENT Important Information If the maximum water height exceeds 2x width of the channel, OR If the maximum water height in channel is less than 50% of the width of the channel. Please consult Pulsar product support for assistance.
  • Page 28 MICROFLOW-I INSTRUCTION MANUAL Diagram 3 Distance Distance Diagram 4 Distance Distance...
  • Page 29 100m. Install the sensor cables in grounded metal conduit. Do not run-in cable trays or duct banks with variable frequency drives or other high voltage sources. When extending cable for a MicroFlow-i sensor, ensure that all wiring • in any junction /connector boxes are correct When connecting multiple MicroFlow-i sensors for use with the •...

  • Page 30: Preparation For Operation

    ✓ All wiring is correct to a Pulsar controller. ✓ The power supply is correctly installed. General Maintenance There are no user serviceable parts inside MicroFlow-i. If you experience any problems with the unit, then please contact Pulsar Process Measurement for advice.

  • Page 31: Sensor Maintenance

    ‘Chapter 2-Mounting a sensor to a bracket’. When replacing the sensor for a new one, you can use MicroFlow-i • HART PC to upload any changed parameters from your old sensor to the new sensor. Allowing continued use of the sensor which is setup...
  • Page 32 MICROFLOW-I INSTRUCTION MANUAL for your application.MicroFlow protocol. Allowing you to continue use without the need to change any parameters. The correct PPE should be worn on site when performing maintenance on the system, if in doubt please contact your site Health and Safety Officer for further advice.

  • Page 33: Chapter 4 Understanding How The Microflow-Iworks

    4-20 mA Device The MicroFlow-i can be used as an ‘out of the box’ 4 – 20mA device, this is the case, by default when you switch the sensor on. The 4 – 20mA output is proportional to the flow velocity being seen, with respect to the maximum range of the sensor up to 6 m/s (19.7 ft/s).

  • Page 34: Chapter 5 Microflow-I Pc

    For optimum installation insert your HART modem to your PC whilst installing MicroFlow-i HART PC, where your PC should then assign the modem to a Com Port. Or if you have an internet connection, upon inserting the USB of the HART modem for the first time, Windows updates should install this onto your computer for you.

  • Page 35: Connecting To Microflow-I Hart Pc

    To enable the sensor to work correctly, the power (red) cables from the supply and to the MicroFlow-i must be wired in series with the 250 Ohm resistor (as seen in the above picture). Once the sensor is connected to the HART modem, insert the USB into the PC/laptop ready for use.
  • Page 36 MICROFLOW-I INSTRUCTION MANUAL Once the MicroFlow-i parameters have been retrieved successfully, the status condition will then appear as:...

  • Page 37: Flow Tab

    MicroFlow-i. Flow Tab The above picture is an example of the default screen of MicroFlow-i HART PC, which is the Flow tab. The dial on the left displays the linear flow velocity of a maximum up to 6m/s (19.7 ft/s). While the numerical display on the right shows the velocity flow rate and the current mA reading.

  • Page 38: Configuration

    MICROFLOW-I INSTRUCTION MANUAL Stability The stability level is an indication of the consistency of flow reading, as derived from the combination of signal strength and statistical fluctuations of the flow reading. A high level of stability would indicate optimum condition, and relatively healthy flow within the channel and indicate higher levels of repeatability and better flow tracking.

  • Page 39: Microflow-I Manual Setting

    Manual Setting terminal, as shown below: This feature is also available when the sensor has been set into ‘Program mode’, where all if the MicroFlow-i parameters can be queried by entering the parameter address in the Parameter field and then clicking on the ‘Get’...

  • Page 40: 20Ma Trim

    MICROFLOW-I INSTRUCTION MANUAL The values need to be valid and within the allowed range for that parameter for the change to be successful. Please refer to ‘Chapter 7 Parameter listing and Descriptions’ in this manual, on the parameters available and the range each one can be set between.

  • Page 41: Trace Tab

    PULSAR MEASUREMENT Resume mA When calibration is complete, to release the constant mA reading select ‘Resume mA’ which will return you to normal measurement/mA output readings. If this is not selected when calibration is complete, then your mA output will not be updated.
  • Page 42 MICROFLOW-I INSTRUCTION MANUAL When a signal is received, the ‘green square indicator’ will move down from 10 on the vertical axis. The further the ‘green square indicator’ moves from 10, the larger the strength of the received signal. During flow condition, the ‘green square indicator’...

  • Page 43: Comport

    PULSAR MEASUREMENT Comport If MicroFlow-i PC fails to connect to the sensor, the status condition will appear as below: You will need to change the communications port that is being used. To do this, select ‘Comport’ from the top menu bar and the Comm Port setup...

  • Page 44: Info

    Flow tab. Set Run mode This mode is used once the MicroFlow-i has been set up in program mode. It is also the default mode that the sensor is in when a connection is made for the first time to a device, or after a power failure. In run mode no parameters can be changed, and all current readings are reported, and you are able to adjust the 4 –...

  • Page 45: Exit

    Processing parameters can be queried and set, there is also an associated access level required for setting, either ‘User’ or ‘Service’. Upon connection to a MicroFlow-i, the access level is defaulted to ‘User’. The parameters are always stored and entered as whole numbers, please refer to the individual parameter for its individual value range.

  • Page 46: Processing Parameters

    MICROFLOW-I INSTRUCTION MANUAL Processing Parameters These parameters relate to the detection and processing of the flow velocity signal. OPTIONS DEFAULT NOTES NAME Used to enter a fixed gain Gain 100 – 1600 (sensitivity) value, a higher number means higher gain.
  • Page 47 PULSAR MEASUREMENT OPTIONS DEFAULT NOTES NAME This is the number of Signal measurements that need to Present 1 -100 persist for there to be a Persist signal present state. In units of mm/s velocity for Minimum user input, to set the 10 –...
  • Page 48 MICROFLOW-I INSTRUCTION MANUAL...
  • Page 49 Returning to the trace screen will resume recording of the trace data. If using the MicroFlow-i on an application where Flow type is changed to ‘Fast’, this will reduce the damping to obtain better results. If there is natural flow and...

  • Page 50: Microflow-I Firmware Upgrade

    Also, all flow measurement and output operation will be halted when the sensor is in the ‘Bootloader’. Please follow these steps to reprogram a sensor MicroFlow-i firmware: 1. Please ensure that the sensor is connected to a PC via the HART modem.
  • Page 51 PULSAR MEASUREMENT Important Information Do not switch off supply to the unit or close the software down during the firmware upgrade.

  • Page 52: Microflow-I Hart Firmware Upgrade

    7. When the ‘Program File OK now rebooting’ message is displayed, you can close the HART Bootloader and reconnect to the PC software. 8. Select the ‘Search’ button on the software, and the sensor will reconnect to MicroFlow-i HART PC with the new HART firmware installed.
  • Page 53 PULSAR MEASUREMENT Important Information Do not switch off supply to the unit or close the software down during the firmware upgrade.

  • Page 54: Chapter 7 Troubleshooting

    Check that wiring to the modem is correct. Close MicroFlow-i HART PC software, cycle Unable to connect to MicroFlow-i power on the sensor and re-open the HART PC software. Ensure that the correct Com port has been set and retry connection.

  • Page 55: Chapter 8 Disposal

    PULSAR MEASUREMENT CHAPTER 8 DISPOSAL Incorrect disposal can cause adverse effects to the environment. Dispose of the device components and packaging material in accordance with regional environmental regulations including regulations for electrical \ electronic products. Transducers Remove power, disconnect the Transducer, cut off the electrical cable and dispose of cable and Transducer in accordance with regional environmental regulations for electrical \ electronic products.

  • Page 56: Notes

    MICROFLOW-I INSTRUCTION MANUAL NOTES...
  • Page 57 S U P P O R T @ P U L S A R M E A S U R E M E N T . C O M Copyright © 2020 Pulsar Measurement Ltd. Registered Address: 1 Chamberlain Square CS, Birmingham B3 3AX Registered No.: 3345604 England &...

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