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Hoffer Flow Controls HRT1 User Manual

Flow rate indicator/totalizer with hart communications protocol
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Model: HRT1
Flow Rate Indicator/Totalizer With
HART Communications Protocol
USER'S MANUAL
HP-313
April 2018
HP-313
July 2009
107 Kitty Hawk Lane
P.O. Box 2145
Elizabeth City, NC 27909
●
●
1-800-628-4584
(252) 331-1997
Fax (252) 331-2886
●
●
www.hofferflow.com
email: info@hofferflow.com

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Summary of Contents for Hoffer Flow Controls HRT1

  • Page 1 Model: HRT1 Flow Rate Indicator/Totalizer With HART Communications Protocol USER’S MANUAL HP-313 April 2018 HP-313 July 2009 107 Kitty Hawk Lane P.O. Box 2145 Elizabeth City, NC 27909 ● ● 1-800-628-4584 (252) 331-1997 Fax (252) 331-2886 ● ● www.hofferflow.com email: info@hofferflow.com...
  • Page 5 _________________________________________________________ NOTICE Hoffer Flow Controls, Inc. makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. This manual has been provided as an aid in installing, connecting, calibrating, operating, and servicing this unit.
  • Page 6 LIMITED WARRANTY POLICY FOR HOFFER FLOW CONTROLS ________________________________________________________________ HOFFER FLOW CONTROLS, INC. ("HFC") warrants HFC's Precision Series and API Series of turbine flowmeters to be free from defects in material and workmanship under normal use and service, only if such goods have been properly selected for the service intended, properly installed and properly operated and maintained as described in the turbine flowmeter manual.

  • Page 7: Table Of Contents

    6. HART COMMUNICATIONS ------------------------------- 27 Dynamic Variables -------------------------------------------27 Universal Commands----------------------------------------28 Common-Practice Commands-----------------------------28 Device-Specific Commands --------------------------------29 Device Status --------------------------------------------------31 Additional Device Status ------------------------------------32 EDDL – Process Variables ---------------------------------35 EDDL – Device Diagnostics --------------------------------36 EDDL – Online -----------------------------------------------36 7. MAINTENANCE----------------------------------------------- 41 HRT1 HP-313...
  • Page 8 APPENDIX A – DEFAULT CONFIGURATION------------ 43 APPENDIX B – Declaration and Conformity----------------- 45 APPENDIX C – Installation Drawings and Conditions for Safe Use for Certified Systems ------------------------------- 47 HP-313 HRT1...

  • Page 9: Introduction

    (LCD). The top line is an 8-digit Total Volume display and the bottom is a 5-digit Rate display. A 4-20 mA analog signal proportional to the flowrate is output on the current loop. The HRT1 is configurable by way of the instrument keypad or via HART communications.
  • Page 10 Residential, Commercial & Light Industry Environment. Generic Immunity Standard EN 61000-6-1 Residential, Commercial & Light Industry Environment. Electrostatic discharge requirements EN 61000-4-2 Radiated, radio-frequency, electromagnetic immunity EN 61000-4-3 Electrical fast transient/burst requirements EN 61000-4-4 Immunity to conducted disturbances EN 61000-4-6 HP-313 HRT1...

  • Page 11: Model Number Designation

    PANEL MOUNT ENCLOSURE (IP40) (PD) PANEL MOUNT ENCLOSURE WITH CLEAR DOOR AND LOCK (IP40) NEMA 1 ENCLOSURE (HRT1 MOUNTED TO THE OUTSIDE OF CLEAR COVER FOR DOOR/DRY INSTALLATION ONLY) NEMA 4X ENCLOSURE/HRT1 ENCLOSURE (MOUNTED BEHIND CLEAR COVER WITH SUNSHADE) (7*) STAINLESS STEEL ENCLOSURE (IP66) (ALL CONDUIT PORTS ARE 3/4"...
  • Page 12 Introduction ANALOG OUTPUT MODEL HRT1-( ( C ) OPTION WIRED 4-20MA LOOP POWERED PULSE OUTPUT MODEL HRT1-( ( D ) OPTION 0-5 TTL/CMOS (OC) OPEN COLLECTOR 8-30 VDC WITH PULLUP TO VDC+ ALARMS TWO OPTO-ISOLATED ALARMS WITH USER-DEFINED LEVELS FOR RATE...
  • Page 13 T6; Gb; Zone 21, AEx tb IIIC T72°C Db; IP66: ATEX/IECEX : II 2 G Ex db IIB+H2 T6 Gb II 2 D Ex tb IIIC T72°C Db IP66 T1-T6 = -40°C to +70°C SPECIAL FEATURES MODEL HRT1-( ( G ) OPTION (CE) CE MARK REQUIRED FOR EUROPE (SP) ANY SPECIAL FEATURES THAT ARE NOT COVERED IN THE MODEL NUMBER, USE A WRITTEN DESCRIPTION OF THE -SP.
  • Page 14 Introduction 6 This Page Intentionally Left Blank HP-313 HRT1...

  • Page 15: Specifications And Product Features

    0.001 to 99,999,999. Linearization: Up to 20 points. Decimal Points: Decimal Point positions are configurable for 0, .0, .00, or .000 for both rate and total. Total: 1 count, Rate: 0.01% Accuracy: HRT1 HP-313...

  • Page 16: Inputs

    Activates internal reed switch DC Power/Loop Powered Voltage: 8 to 30 VDC Current: < 24 mA Loop Burden: 8 VDC maximum Supply Backup: C size Lithium or battery pack for Ex system Battery Life: 8 months typical Protection: Reverse polarity protected HP-313 HRT1...

  • Page 17: Analog Output

    Temperature: Operating: -40°F (-40C) to 158°F (70C). Humidity: 0 – 90% Non-condensing. Packaging: NEMA 4X, Panel mount or Explosion proof Dimensions for 4.33" (110 mm) wide x 4.33" (110 mm) NEMA 4X enclosure: long 4.33" (110 mm) tall. HRT1 HP-313...
  • Page 18  2 Optional Alarm Outputs configurable for Rate or Total  Magnetically operated switch for Total reset  Internal battery backup  Configuration and Grand Total stored in non-volatile memory. Grand Total saved once per minute. HRT1 HP-313...

  • Page 19: Installation

    PCA186A provides a quick selection of various input/output options. The following pages illustrate connections and switch settings for various options. To make field wiring connections to the HRT1-4 option (NEMA 4X, front panel mounted on the outside of the clear cover), complete the following: Loosen the four cover screws.
  • Page 20 Installation NOTE: When installing HRT1 unit directly on the turbine meter, follow the steps below to avoid twisting signal wires from pickup coil. Remove the HRT1 electronics from the enclosure. Disconnect the signal wires from the HRT1 electronics, if connected.

  • Page 21: Ma Current Loop

    Installation 4-20 mA Current Loop The HRT1 is powered from a two-wire 4-20 mA current loop, in the voltage range of 8-30 Volts DC, depending on the loop resistance. One C-Size 3.6V Lithium or battery pack for Ex d system, is included as a backup power supply to ensure that volume accumulation will not be interrupted during a power failure.

  • Page 22: Flowmeter Input

    HART Communications requires a loop resistance between 250 and 1100 Ohms. The HRT1 outputs a 4-20mA analog signal on the current loop that is proportional to the calculated flow rate. The 4mA and 20mA settings referred to as outLo and outHi respectively, may be configured from the front panel of the instrument or via HART communications.
  • Page 23 SIG IN - Redi-Pulse Pickup Figure 3.2.2 – Isolated Redi-Pulse TTL Wiring and Switch Settings Isolated Redi-Pulse (Open Collector) Requires 3-Wire Installation POWER SUPPLY 8-30 VDC Redi-Pulse Pickup Figure 3.2.3 – Isolated Redi-Pulse Open-Collector Wiring and Switch Settings HRT1 HP-313...

  • Page 24: Pulse Output

    Installation Pulse Output HRT1 Pulse Output can be configured for turbine raw frequency or for unit of measure scaled for the least significant digit of the displayed total. A scaling factor of 1, 10 or 100 is available to reduce or increase the resolution of the pulse output.
  • Page 25 5.1V ZENER PULLUP TO 4 ON 5 ON VDC+ TRANSORB TRANSORB DC_IN(+) DC_IN(+) SW2-4 SW2-5 ALARM 1 ALARM 2 Figure 3.4.1 – Alarm Outputs Circuit Overview ALARM2 OUTPUT + ALARM1 OUTPUT + Figure 3.4.2 – Alarm Outputs Wiring HRT1 HP-313...

  • Page 26: Wiring Summary

    When installing HRT1, it is a good practice to use shielded cables for all input and output signals. The shield should be connected to the chassis ground lug on the HRT1. The shield on the opposite end of the cable should be left open.

  • Page 27: Configuration

    Configuration 19 CONFIGURATION The HRT1 is fully configurable, with all parameters being stored in non-volatile memory. The instrument may be configured locally using the front panel keys or remotely via a HART communicator. Local Configuration The local configuration mode is entered by pressing the button.
  • Page 28 Total Decimal Point 0000000.0 0000000.0 Set Total decimal point location. tot d 000000.00 00000.000 FLo u Rate Units Select RATE units. NN in 00000000 Rate Decimal Point location 00000.000 0000000.0 Set Rate decimal point location. FL d 000000.00 00000.000 HP-313 HRT1...
  • Page 29 Set maximum time in tenths of a second to sample the input frequency. This setting determines SAPLE the amount of time the HRT1 will wait for the next input pulse before returning to 0. For example, 80 = 8 seconds. Default is 1. Changing this setting is only recommended for low flow applications below 1 Hz.

  • Page 30: Default Configuration

    Alarm2 Output Test Activates alarm2 output. Default Configuration HRT1 is fully configured by the factory prior to shipment. When the instrument is purchased with a Hoffer Flowmeter or when calibration and configuration data are supplied, the instrument is configured as specified.

  • Page 31: Operation And Maintenance

    OPERATION AND MAINTENANCE Display Parameters The HRT1 calculates and displays total volume and flow rate on a two-line liquid crystal display (LCD). The top line is an 8-digit Total Volume display and the bottom is a 5-digit Rate display. The 8-digit...

  • Page 32: System Response Time

    Operation and Maintenance To clear the total using a magnet, slide the magnet slowly across the HRT1 model name at the top of the front panel overlay. To reset the total from the front panel keypad, use the following key...

  • Page 33: Battery Replacement Indication

    When changing the battery, it is recommended to stop the flow at least two minutes prior to removing power from the unit to ensure that the stored Grand Total is current when restoring power (see section 5.2 Saving Grand Total). See Section 7 Maintenance for detailed instructions on battery replacement. HRT1 HP-313...
  • Page 34 Operation and Maintenance This Page Intentionally Left Blank HP-313 HRT1...

  • Page 35: Hart Communications

    HART Communications HART COMMUNICATIONS The HRT1 has been designed to comply with Revision 7.0 of the HART protocol. A full list of features new to Revision 7.0 may be obtained at the Hart Communication Foundation website. The HRT1 may be identified by the following:...

  • Page 36: Universal Commands

    Read Unique identifier with Long Tag Write Long Tag Common-Practice Commands The following Common-Practice Commands have been implemented: Write Range Values Reset "Configuration Changed" Flag Enter/Exit Fixed Current Mode Perform Master Reset Trim DAC Zero Trim DAC Gain Read Additional Device Status HP-313 HRT1...

  • Page 37: Device-Specific Commands

    Write the value of the Correction Factor. The correction factor is a multiplier used to correct flow rate and total. Read Linearization Table Read the flowmeter Linearization Table. Write Linearization Write the Frequency values for Frequency the linearization table points. HRT1 HP-313...
  • Page 38 Read Lock Status Read Lock Status. Password is required when unit is locked. Write Lock Unit Lock the unit and enable password protection. Read Current Mode Read mode for analog output current (4mA, 12mA, 20mA, Follows Rate). HP-313 HRT1...

  • Page 39: Device Status

    Bit 1 - Non-Primary Variable Out Of Limits Bit 2 - Primary Variable Analog Output Saturated Bit 3 - Primary Variable Analog Output Fixed Bit 4 - More Status Available Bit 5 – Cold Start Bit 6 – Configuration Changed Bit 7 – Device Malfunction HRT1 HP-313...

  • Page 40: Additional Device Status

    K-Factor Decimal Point Error Number of Points Error Total Decimal Point Error Rate Decimal Point Error Sample Time Error Unused Unused Unused Pulse Scale Error Pulse Frequency Error Unit Locked Alarm 2 Function Error Alarm 1 Function Error HP-313 HRT1...
  • Page 41 Alarm 2 Test Alarm 1 Test Unused Unused Unused Unused Unused Unused Alarm 2 Activated Alarm 1 Activated Unused Unused Unused Unused Unused Unused Unused Unused Maintenance Required Device Variable Alert Critical Power Failure Unused Unused Unused Unused Unused HRT1 HP-313...
  • Page 42 HART Communications 34 Byte Meaning Unused Unused Unused Unused Unused Unused Unused Unused Simulation Active Non-Volatile Memory Defect Volatile Memory Defect Watchdog Reset Executed Voltage Conditions Out of Range Environment Conditions Out of Electronic Defect Unused HP-313 HRT1...

  • Page 43: Eddl - Process Variables

    Long Tag – Assign long HART Tag to device  Manufacturer – Display HOFFER FLOW CNTRLS  Model – Display HRT1  Dev id – Display ID number associated with device.  PV Snsr s/n – Display of serial number for Primary Variable sensor.

  • Page 44: Eddl - Device Diagnostics

    Max Sample Time – Assign the maximum time in tenths of a second to sample the input frequency. This setting determines the amount of time the HRT1 will wait for the next input pulse before returning to 0. Valid entry is 1-80, with 80 = 8 seconds.
  • Page 45 Pulse Scale is 1, then 1 pulse is output for each tenth (0.1) of a unit. Changing the Pulse Scale to 10 would output one (1) pulse for every 1.0 unit of volume. OFF turns Pulse Output off. HRT1 HP-313...
  • Page 46 Set Alarm 2 ON – Toggle Alarm 2 Output to test. Meter Setup  Linearization – Select AVERAGE K-FACTOR to use a single K-Factor or LINEARIZATION TABLE to enter up to 20 points.  K-Factor Decimal Point Location - Select k-factor resolution as 00000000, 0000000.0, 000000.00 or 00000.000 HP-313 HRT1...
  • Page 47 Poll Addr – (Polling address) Assign a number between 0-15 to be used in multidrop applications.  Date – Enter the Date  Descriptor – Enter a descriptor  Message – Enter a message  Final asmbly num – Enter Assembly number. HRT1 HP-313...
  • Page 48 HART Communications This Page Intentionally Left Blank HP-313 HRT1...

  • Page 49: Maintenance

    The lithium battery is secured inside the enclosure by a Velcro straps and connected to a connector (JP2) near the top of the circuit assembly. To replace a lithium battery pack in the HRT1, perform the following steps: Ex Proof Enclosure:...
  • Page 50 Velcro tightly around the battery. Connect the replacement battery to the JP2 connector. Replace the display assembly and enclosure cover. Battery shelf life is estimated at 10 years at a storage temperature of 25° C. HP-313 HRT1...
  • Page 51 FREQUENCY 20 5000.000 K-FACTOR 01 1.00 K-FACTOR 02 1.00 K-FACTOR 03 1.00 K-FACTOR 04 1.00 K-FACTOR 05 1.00 K-FACTOR 06 1.00 K-FACTOR 07 1.00 K-FACTOR 08 1.00 K-FACTOR 09 1.00 K-FACTOR 10 1.00 K-FACTOR 11 1.00 K-FACTOR 12 1.00 HRT1 HP-313...
  • Page 52 00000.000 OUT HIGH (URV–20 MA) 99.999 PULSE SCALE 0 (OFF) PULSE FREQENCY ALARM 1 FUNCTION ALARM 1 SETPOINT 99999.981 ALARM 2 FUNCTION ALARM 2 SETPOINT 99999.981 CURRENT OUT FOLLOWS RATE PULSE TEST ALARM 1 TEST ALARM 2 TEST HP-313 HRT1...
  • Page 53 Appendix B – Declaration of Conformity APPENDIX B – Declaration of Conformity HRT1 HP-313...
  • Page 54 Appendix B – Declaration of Conformity HP-313 HRT1...
  • Page 55 Appendix C – Installation Drawings and Conditions for Safe Use for Certified Systems APPENDIX C Installation Drawings and Conditions for Safe Use for Certified Systems HRT1 HP-313...
  • Page 56 Appendix C – Installation Drawings and Conditions for Safe Use for Certified Systems HP-313 HRT1...
  • Page 57 Appendix C – Installation Drawings and Conditions for Safe Use for Certified Systems HRT1 HP-313...
  • Page 58 Appendix C – Installation Drawings and Conditions for Safe Use for Certified Systems HP-313 HRT1...
  • Page 59 Appendix C – Installation Drawings and Conditions for Safe Use for Certified Systems HRT1 HP-313...
  • Page 60 Appendix C – Installation Drawings and Conditions for Safe Use for Certified Systems HP-313 HRT1...
  • Page 61 Appendix C – Installation Drawings and Conditions for Safe Use for Certified Systems HRT1 HP-313...
  • Page 62 Appendix C – Installation Drawings and Conditions for Safe Use for Certified Systems HP-313 HRT1...
  • Page 63 Appendix C – Installation Drawings and Conditions for Safe Use for Certified Systems HRT1 HP-313...
  • Page 64 Appendix C – Installation Drawings and Conditions for Safe Use for Certified Systems HP-313 HRT1...
  • Page 65 Appendix C – Installation Drawings and Conditions for Safe Use for Certified Systems HRT1 HP-313...
  • Page 66 Appendix C – Installation Drawings and Conditions for Safe Use for Certified Systems HP-313 HRT1...
  • Page 67 Appendix C – Installation Drawings and Conditions for Safe Use for Certified Systems HRT1 HP-313...

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