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Related Manuals for Hoffer Flow Controls CAT1
Summary of Contents for Hoffer Flow Controls CAT1
- Page 1 Model: CAT1 Microprocessor Controlled Two-Wire 4-20mA Loop Powered Transmitter USER’S MANUAL HP-310 June 2018 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 3 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 4 Limited Warranty HOFFER FLOW CONTROLS, INC. ("HFC") warrants HFC's products ("goods") described in the specifications incorporated in this manual to be free from defects in material and workmanship under normal use and service, but only if such goods have been properly selected for the service intended, properly installed and properly operated and maintained.
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Page 5: Table Of Contents
CONTENTS INTRODUCTION ................ 1 1-1 Model Number Designation ..........2 SPECIFICATIONS ..............5 PRINCIPLE OF OPERATION........... 7 3-1 Functional Blocks ..............7 3-1-1 Preamplifier..............7 3-1-2 Microcontroller ............8 3-1-3 Loop Driver..............8 3-2 System Response Time............9 INSTALLATION................ 11 4-1 Typical Connections ............ -
Page 7: Introduction
The CAT1 is a microprocessor based loop powered transmitter. The transmitter accepts a low-level frequency signal on the input and provides a 4-20mA analog output proportional to the flow rate. CAT1 is compatible with all Hoffer turbine flowmeters as well as the H.O.G. -
Page 8: Model Number Designation
GENERAL PURPOSE. 2.6"L X 2.6"H X 2.6"W MINIMUM MOUNTING SPACE. 2" LONG DIN RAIL MOUNT SINGLE UNIT. UP TO 20 CAT1 UNITS CAN BE MOUNTED ON A SINGLE RAIL. ADD 2" PER UNIT. (E3) EXPLOSION-PROOF (ALL CONDUIT PORTS ARE ¾” FNPT) (E3M) EXPLOSION-PROOF (CONDUIT PORTS D2 &... - Page 9 Introduction SPECIAL FEATURES MODEL CAT1-( ( D ) OPTION (CE) MARK REQUIRED FOR EUROPE (SP) ANY SPECIAL FEATURES THAT ARE NOT COVERED IN THE MODEL NUMBER, USE A WRITTEN DESCRIPTION OF THE -SP. (CFX) 6.75" LONG RISER AND UNION FOR EXPLOSION-PROOF SYSTEM CERTIFIED ENCLOSURES MOUNTED ON TURBINE.
- Page 10 Introduction This page intentionally left blank. HP-310...
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Page 11: Specifications
Specifications 5 2. SPECIFICATIONS Specifications Input Signal Type: Magnetic pick up, Contact Closure Input frequency range: 0.2 Hz to 4 KHz Signal level: 10 mV rms to 30 Vdc Power supply: Loop Power 8-30 Vdc Reverse polarity protection Analog Output: 4-20 mA, 1-5V Analog Output Response Time:... - Page 12 Specifications 6 This page intentionally left blank. HP-310...
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Page 13: Principle Of Operation
Principle of Operation 3. PRINCIPLE OF OPERATION The CAT1 consists of two printed circuit boards and four main functional blocks: Preamplifier, Microcontroller, Loop Driver, Communications Interface. PCA183 PCA180 MICROCONTROLLER CONDITIONED SIGNAL FLOWMETER INPUT PREAMP COMMUNICATIONS LOOP INTERFACE 4-20 mA 4-20 mA... -
Page 14: Microcontroller
Principle of Operation 3-1-2 Microcontroller The Microcontroller, located on PCA183, accepts the square-wave output of the preamplifier and performs all of the calculations that are required to control the Loop Driver. After measuring the frequency of the square-wave, the Microcontroller uses the following equations to compute the flow rate and current. -
Page 15: System Response Time
Principle of Operation System Response Time The analog output response time to reach steady state due to a change in the flow rate is approximately 1/8 of a second. When flow stops, the time for the analog output to return to 4 mA will be between .25 and 8 seconds, depending on the Maximum Sample Time (MST) setting. - Page 16 Principle of Operation This page intentionally left blank. HP-310...
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Page 17: Installation
Installation 4. INSTALLATION NOTE: CAT1 flow input interfaces with magnetic type pickup coils and contact closure only. If another type of coil is required, refer to CAT 2 and CAT3 models. Typical Connections Loop powered with MAG Coil Installation POWER... -
Page 18: Communications Connections
Hoffer communication program DevConfig 3.0 must be used to communicate with CAT1. The RS232 serial port connector is located under the top plate of CAT1 and may be accessed by removing the two screws from the top plate. A matching connector is provided with HOFFER HIT2A-301 Communications Cable. -
Page 19: Appendix A - Default Configuration
Appendix A – Default Configuration APPENDIX A – Default Configuration FIELD Value FLOW CALC. METHOD 0 (Average) K-FACTOR DECIMAL AVERGAE K-FACTOR 1.00 NUMBER OF POINTS IN K-TABLE FREQUENCY 01 4999.981 FREQUENCY 02 4999.982 FREQUENCY 03 4999.983 FREQUENCY 04 4999.984 FREQUENCY 05 4999.985 FREQUENCY 06 4999.986... - Page 20 Appendix A – Default Configuration FIELD Value K-FACTOR 18 1.00 K-FACTOR 19 1.00 K-FACTOR 20 1.00 MEASURING UNITS FLOW RATE TIME UNITS MAX SAMPLE TIME ANALOG OUTPUT LOW 0.000 ANALOG OUTPUT HIGH 100.000 PULSE SCALE PULSE FREQUENCY ALARM FUNCTION ALARM LEVEL 100.000 HP-310...
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Page 21: Appendix B - Declaration Of Conformity
Appendix C – Installation and Safe Use Drawings APPENDIX B – Declaration of Conformity HP-310... - Page 22 Appendix B – Declaration of Conformity HP-310...
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Page 23: Appendix C - Installation And Conditions For Safe Use Drawings For Certified Systems
Appendix C – Installation and Safe Use Drawings APPENDIX C – Installation and Conditions for Safe Use Drawings for Certified Systems HP-310... - Page 24 Appendix C – Installation and Safe Use Drawings HP-310...
- Page 25 Appendix C – Installation and Safe Use Drawings HP-310...
- Page 26 Appendix C – Installation and Safe Use Drawings HP-310...
- Page 27 Appendix C– Installation and Safe Use Drawings HP-310...
- Page 28 Appendix C– Installation and Safe Use Drawings HP-310...
- Page 29 Appendix C– Installation and Safe Use Drawings HP-310...
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