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Microprocessor Controlled Two-Wire 4-20mA

Loop Powered Transmitter

Model: CAT1

HP-310

February 2008

USER’S MANUAL

HP-310

April 2009

107 Kitty Hawk Lane, P.O. Box 2145, Elizabeth City, NC 27906-2145

800-628-4584 252-331-1997 FAX 252-331-2886

www.hofferflow.com E-mail: [email protected]

Содержание CAT1 Series

Страница 1: ...Loop Powered Transmitter Model CAT1 HP 310 February 2008 USER S MANUAL HP 310 April 2009 107 Kitty Hawk Lane P O Box 2145 Elizabeth City NC 27906 2145 800 628 4584 252 331 1997 FAX 252 331 2886 www h...

Страница 2: ......

Страница 3: ...nd may be requested from HOFFER FLOW CONTROLS This document contains proprietary information which is protected by copyright All rights are reserved No part of this document may be photocopied reprodu...

Страница 4: ...r service intended HFC will notify the purchaser in writing and will deliver the goods back to purchaser upon i receipt of Purchaser s written instructions and ii the cost of transportation If Purchas...

Страница 5: ...ks 7 3 1 1 Preamplifier 7 3 1 2 Microcontroller 8 3 1 3 Loop Driver 8 3 1 4 Communications Interface 8 3 2 System Response Time 9 4 Installation 11 4 1 Typical Connections 11 4 2 Communications Connec...

Страница 6: ......

Страница 7: ...timebase for rate measurement and calibration of the analog output Configuration and remote monitoring can also be performed using any PC based communications program e g HyperTerminal or ASCII termi...

Страница 8: ...RAIL ADD 2 PER UNIT 3 O MEETS CLASS 1 DIV 1 AND 2 GROUPS C D CLASS II GROUPS E F G CLASS III NEMA 4X WITH O RING CERTIFIED CSA UL BODY KILARK GECCT 3 STOCK 200 0945 FLAT COVER STOCK 200 0533 KILARK GE...

Страница 9: ...OOP POWERED SPECIAL FEATURES MODEL CAT1 D OPTION D CE MARK REQUIRED FOR EUROPE SP ANY SPECIAL FEATURES THAT ARE NOT COVERED IN THE MODEL NUMBER USE A WRITTEN DESCRIPTION OF THE SP NOTES 1 INPUTS ACCEP...

Страница 10: ...4 Introduction HP 310 This page intentionally left blank...

Страница 11: ...verse polarity protection Analog Output 4 20 mA 24 mA overflow condition Load resistance Max 650 Ohms at 24 Vdc Accuracy 0 02 of full scale 20o C Temperature drift 40ppm deg C Communications RS232 por...

Страница 12: ...6 Specifications HP 310 This page intentionally left blank...

Страница 13: ...S232 PCA180 FLOWMETER INPUT PREAMP MICROCONTROLLER LOOP DRIVER CONDITIONED SIGNAL COMMUNICATIONS INTERFACE PCA183 3 1 Functional Blocks 3 1 1 Preamplifier The Preamplifier located on PCA180 accepts th...

Страница 14: ...here AF Is the 20 mA maximum Flow rate value If the calculated flowrate is greater than the AF setting the current will be set to 24mA to indicate an Over range condition After calculating the current...

Страница 15: ...s When flow stops the time for the analog output to return to 4 mA will be between 3 and 12 seconds depending on the Maximum Sample Time MST setting MST is adjusted using the NB DATA command where NB...

Страница 16: ...10 Principle of Operation HP 310 This page intentionally left blank...

Страница 17: ...coils and contact closure only If another type of coil is required refer to CAT 2 and CAT3 models 4 1 Typical Connections Loop powered with MAG Coil Installation B A N C N C N C Mag Pickup Coil DC N...

Страница 18: ...puter terminal COM port settings must be set as follows Baud Rate 2400 Data Bits 8 Parity None Stop bits 1 Handshaking None HOFFER HIT2A 301 Communications Cable 4 3 Wiring When installing the CAT1 it...

Страница 19: ...4999 982 F03 4999 983 F04 4999 984 F05 4999 985 F06 4999 986 F07 4999 987 F08 4999 988 F09 4999 989 F10 4999 990 F11 4999 991 F12 4999 992 F13 4999 993 F14 4999 994 F15 4999 995 F16 4999 996 F17 4999...

Страница 20: ...14 Appendix A Default Configuration HP 310 FIELD Value K16 1 00 K17 1 00 K18 1 00 K19 1 00 K20 1 00 TU 100 GAL FM 1 MIN NB 01 PA 1234 OC 0 Rate...

Страница 21: ...figuration must be configured as follows Baud rate 2400 Data bits 8 Parity none Stop bits 1 Handshaking none The CAT1 echoes all received messages and then transmits a response string terminated with...

Страница 22: ...t shall send NP 20 CR The CAT1 echoes the sent message and responds with NUM PTS 20 CR The CAT1 checks the ranges for data and rejects writes that are not within the allowed range If the sending unit...

Страница 23: ...HOD AVG for Average K factor or F C METHOD LIN for Linearization table KD K Factor Decimal Point Location 0 for 00000000 1 for 0000000 0 and all K Factors are less than 9999999 9 otherwise not allowed...

Страница 24: ...l places K K Factor 1 20 K FACT DATA for K01 through K09 K FACT DATA for K10 through K20 DATA to decimal places as per KD command TU Total Units 100 for gallons 140 for liters 110 for cubic feet 150 f...

Страница 25: ...m value of the Out High setting 4mA FLOW DATA AF Out High Minimum is the Out Low Setting LF to a maximum of the following 99999 999 if RD 3 999999 99 if RD 2 9999999 9 if RD 1 99999999 if RD 0 20mA FL...

Страница 26: ...ceives another message from the master The DATA following the F denotes the frequency of the pulses to a precision of three places past the decimal the DATA following the R denotes the rate to a preci...

Страница 27: ...he device This value is used in production at the test step to calibrate the 4mA output point CN will cause an Invalid Command response and absence of the symbol will cause the HIT2A to ignore the dat...

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