Hoffer CAT3-DC-MIL User Manual Download Page 4

 

HFC 9708

 

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.  This warranty shall extend for a period of one (1) year from 
the date of delivery to the original purchaser (or eighteen (18) months if the delivery to 
the original purchaser occurred outside the continental United States).  This warranty 
is extended only to the original purchaser ("Purchaser"). 

Purchaser's sole and 

exclusive remedy is the repair and/or replacement of nonconforming goods as 
provided in the following paragraphs.

 

 

In the event Purchaser believes the goods are defective, the goods must be returned to 
HFC, transportation prepaid by Purchaser, within twelve (12) months after delivery of 
goods (or eighteen (18) months for goods delivered outside the continental United 
States) for inspection by HFC. If HFC's inspection determines that the workmanship 
or materials are defective, the goods will be either repaired or replaced, at HFC's sole 
determination, free of additional charge, and the goods will be returned, transportation 
paid by HFC, using the lowest cost transportation available. 
 
Prior to returning the goods to HFC, Purchaser must obtain a Returned Material 
Authorization (RMA) Number from HFC's Customer Service Department within 30 
days after discovery of a purported breach of warranty, but no later than the warranty 
period; otherwise, such claims shall be deemed waived. See the Return 
Requests/Inquiries Section of this manual. 
 
If HFC's inspection reveals the goods are free of defects in material and workmanship 
or such inspection reveals the goods were improperly used, improperly installed, 
and/or improperly selected for 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 Purchaser does not respond 
within thirty (30) days after notice from HFC, the goods will be disposed of in HFC's 
discretion. 
 
HFC does not warrant these goods to meet the requirements of any safety code of any 
state, municipality, or other jurisdiction, and Purchaser assumes all risk and liability 
whatsoever resulting from the use thereof, whether used singly or in combination with 
other machines or apparatus. 
 
This warranty shall not apply to any HFC goods or parts thereof, which have been 
repaired outside HFC's factory or altered in any way, or have been subject to misuse, 
negligence, or accident, or have not been operated in accordance with HFC's printed 
instructions or have been operated under conditions more severe than, or otherwise 
exceeding, those set forth in the specifications for such goods. 
 

THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER 
WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING ANY IMPLIED 
WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR 
PURPOSE.

 

HFC

 SHALL NOT BE LIABLE FOR ANY LOSS OR DAMAGE RESULTING

,

 

DIRECTLY OR INDIRECTLY

,

 FROM THE USE OR LOSS OF USE OF THE GOODS

.

 

W

ITHOUT 

LIMITING THE GENERALITY OF THE FOREGOING

,

 THIS EXCLUSION FROM LIABILITY 

EMBRACES THE 

P

URCHASER

'

S EXPENSES FOR DOWNTIME OR FOR MAKING UP 

DOWNTIME

,

 DAMAGES FOR WHICH THE 

P

URCHASER MAY BE LIABLE TO OTHER 

PERSONS

,

 DAMAGES TO PROPERTY

,

 AND INJURY TO OR DEATH OF ANY PERSONS

.

 

HFC

 

NEITHER ASSUMES NOR AUTHORIZES ANY PERSON TO ASSUME FOR IT ANY OTHER 
LIABILITY IN CONNECTION WITH THE SALE OR USE OF 

HFC'

S GOODS

,

 AND THERE ARE 

NO ORAL AGREEMENTS OR WARRANTIES COLLATERAL TO OR AFFECTING THE 
AGREEMENT

.

 

P

URCHASER

'

S SOLE AND EXCLUSIVE REMEDY IS THE REPAIR AND

/

OR 

REPLACEMENT OF NONCONFORMING GOODS AS PROVIDED IN THE PRECEDING 
PARAGRAPHS

.

 

HFC

 SHALL NOT BE LIABLE FOR ANY OTHER DAMAGES WHATSOEVER 

INCLUDING INDIRECT

,

 INCIDENTAL

,

 OR CONSEQUENTIAL DAMAGES

Summary of Contents for CAT3-DC-MIL

Page 1: ...45 800 628 4584 252 331 1997 FAX 252 331 2886 Model CAT3 DC MIL DC Powered Microprocessor Controlled Transmitter Style 5 Enclosure USER S MANUAL 107 Kitty Hawk Lane P O Box 2145 Elizabeth City NC 2790...

Page 2: ......

Page 3: ...and 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 reprod...

Page 4: ...d and or improperly selected for 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 co...

Page 5: ...ontains the information required to install operate maintain and repair a CAT3 DC MIL Flow Rate Signal Converter The CAT3 DC MIL unit is intended to provide ships personnel with the ability to monitor...

Page 6: ...HP 324 5 ii This page intentionally left blank...

Page 7: ...Analog Output 8 4 4 Scaled Pulse Output 9 4 5 Communications Interface 9 5 Installation 11 5 1 Wiring 11 6 Preventative Maintenance 13 6 1 Introduction 13 6 2 Unit Removal 13 7 Troubleshooting 15 7 1...

Page 8: ...HP 324 5 iv This page intentionally left blank...

Page 9: ...C MIL Fuel Metering unit is designed to satisfy the safety requirements for shipboard use The safety precautions and warnings described here are to be observed at all times Additional precautionary me...

Page 10: ...2 Safety HP 324 5 This page intentionally left blank...

Page 11: ...IANCE This instrument is designed to conform to the EMC Directive of the Council of European Communities 89 336 EEC This instrument has been certified to meet MIL S 901D for shock and vibration and MI...

Page 12: ...4 Compliance HP 324 5 This page intentionally left blank...

Page 13: ...deg C Pulse output 0 5 0 10V Open Collector AC square Internal pull up resistor 10k Ohms Recommended load min 50k Ohms Maximum Pulse 1 2 4 8 100 50 Duty Cycle Frequency Pulse Scaling Per flow unit of...

Page 14: ...T3 A OPTION A 1 MAG COIL PULSE DRY CONTACT LINEARIZED PULSE OUTPUT MODEL CAT3 B OPTION B 4 AC SQUARE WAVE LINEARIZED ANALOG OUTPUT MODEL CAT3 C OPTION C 1 4 20 MA POWER SUPPLY MODEL CAT3 D OPTION D DC...

Page 15: ...int linearization is available to correct for flowmeter non linearity improving overall system accuracy CAT3 DC MIL Block Diagram 4 1 Preamplifier The Preamplifier receives signals from the flow senso...

Page 16: ...trols the current of the loop The Loop Driver also supplies power to the Microcontroller The analog output is updated 8 times per second 8 Hz When flow stops the time for the analog output to return t...

Page 17: ...will be output for each tenth 0 1 of a unit of measure Changing the Pulse Scale to 10 would result in an output pulse for each 1 0 unit of measure The output must be scaled so that the pulse frequency...

Page 18: ...10 Operation HP 324 5 This page intentionally left blank...

Page 19: ...t and output signals The shield should be connected to the earth ground lug on the CAT3 DC MIL The shield on the opposite end of the cable should be left open This wiring practice is mandatory in orde...

Page 20: ...12 Installation HP 324 5 This page intentionally left blank...

Page 21: ...ished by the Naval Sea System Command for fuel system components 6 2 Unit Removal 1 Turn off the power supply 2 Open the Style 5 enclosure and unplug the 10 pin terminal from the header 3 Remove the t...

Page 22: ...14 Preventative Maintenance HP 324 5 This page intentionally left blank...

Page 23: ...ecting signal cable for broken or shorted leads 2 With an established flowrate configure the digital multimeter to measure AC volts using the two volt scale Measure voltage at the terminal on Pin 3 SI...

Page 24: ...w sensor manual 7 2 2 Symptom Flow indication with no flow present This symptom indicates the presence of electrical noise pickup 1 Disconnect the signal cable from the electronics unit and from the f...

Page 25: ...4999 986 FREQUENCY 7 4999 987 FREQUENCY 8 4999 988 FREQUENCY 9 4999 989 FREQUENCY 10 4999 990 FREQUENCY 11 4999 991 FREQUENCY 12 4999 992 FREQUENCY 13 4999 993 FREQUENCY 14 4999 994 FREQUENCY 15 4999...

Page 26: ...ACTOR 18 1 00 K FACTOR 19 1 00 K FACTOR 20 1 00 CORRECTION FACTOR 1 000 TOTAL UNITS GAL RATE UNITS MIN MAX SAMPLE TIME 01 4 MA SETTING 00000 000 20 MA SETTING 99 999 PULSE SCALE OFF PULSE OUT FREQUENC...

Page 27: ...parameters must be updated whenever the flow sensor is re calibrated The serial port may be accessed by removing the two screws from the top plate of the blue enclosure External power must be supplie...

Page 28: ...20 Appendix C Drawings HP 324 5 Appendix C Drawings...

Page 29: ...Appendix C Drawings 21 HP 324 5...

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