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KAM Simple Precision OFD, User Manual

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KAM Simple Precision OFD User Manual Download Page 23

22

OFDMANUAL 0816

A P P E N D I X   A

MODBUS REGISTER

MODE

RTU

BAUD RATE

9600

DATA BITS

8

STOP BITS

1

PARITY

NONE

SLAVE ID

1

OFFSET

0

Register No

Type

Description

42000

32bit Float

Signal Offset

42001

32bit Float

Sinal In from Photodiode

42002

32bit Float

LED OFF status

42003

32bit Float

LED ON Status

42004

32bit Float

Electronics Temperature in Celsius

42005

32bit Float

0-100 Output

42006

32bit Float

4-20mA Output

OFD Holding Modbus Registers

SETTINGS

Summary of Contents for Simple Precision OFD

Page 1: ...0000 FAX 1 713 784 0001 Email Sales Kam com KAM CONTROLS INC 3939 Ann Arbor Drive Houston Texas 77063 USA www KAM com User Manual Kam OFD Optical Fluorescence Detector PTB 08 ATEX 1026 OFDMANUAL 0816 An ISO 9001 certified company ...

Page 2: ... 14 Connecting the OFD 15 4 Field Calibration 16 5 Maintenance 18 Appendix A Modbus Register 22 CAUTION When installing the OFD sensor in a pipeline containing petroleum products petrochemicals waste waters with the presence of pressure temperature and high pressure steam refer to the Pipeline Operators Health Safety and Environmental Policy Procedures to ensure safe installation KAM CONTROLS INC ...

Page 3: ...NTING OPTIONS FIG 1 1 FIG 1 2 FIG 1 3 Rectractable OFD on a main pipe with 2 3 or 4 flanged seal housing Rectractable OFD on a main pipe with 2 MNPT seal housing OFD FT Flow Through on a densitometer loop with or 1 MNPT Full opening Ball Valve Full opening Ball Valve ...

Page 4: ...0º C Electronics temp 40º to 160º F 40º to 70º C Pressure ratings ANSI 150 300 600 900 flow through models only Mounting 3 4 and 1 MNPT Flow Through 2 MNPT Seal Housing Insertable Retractable 2 3 or 4 Flanged Seal Housing Insertable Retractable EX enclosure 3 x 6 x 3 76 mm x 152 mm x 76 mm Shaft length 12 to 60 Off the shelf lengths are 24 30 36 48 and 60 610 mm to 1524 mm Off the shelf 610 mm 762...

Page 5: ...13 218 218 MM 216 222 226 MM 226 232 240 MM 240 240 245 150 300 600 900 TABLE 2 2 Flange Size and Class SL A B C D E INCHES 1 443 1 25 1 4 53 7 MM 37 32 25 115 178 TABLE 2 3 DIMENSIONS Shaft Lengths are available in 5 12 7 mm increments Standard sizes are 24 30 36 48 and 60 610 mm 762 mm 914 4 mm 1219 mm 1524 mm FIG 2 1 OFD Sensor with Flanged Seal Housing A Seal Housing FNPT B Shaft Length 5 SL C...

Page 6: ...THROUGH OFD for ANALYZER LOOP INCHES 3 5 1 4 2 25 6 75 7 4 53 1 2 MM 8 13 36 57 171 178 115 30 A B C D E F G H TABLE 2 5 MNPT DIMENSIONS INCHES 3 5 1 45 2 4 6 75 7 4 53 1 3 MM 8 13 37 61 171 178 115 33 A B C D E F G H TABLE 2 6 1 MNPT DIMENSIONS G F A B H C D E FNPT or 1 MNPT ...

Page 7: ...cut at the in station and gives the operator more confidence in their decisions as well as the time to identify and resolve any issues that may arise during a critical interface OUT STATION PREVIEW OFD INCOMING OFD TYPICALLY 1 2 MILES 1 6 3 2km TO TANK TO TANK TO TANK IN STATION CUT OFD TERMINAL FENCE LINE CUT VALVES TERMINAL FENCE FIG 3 1 RECOMMENDED OFD LOCATIONS PRIORTO INSTALLATION Remove all ...

Page 8: ...ortion of pipe It needs to be mounted off the bend opposite the pump DO NOT install the OFD sensor with the lens facing directly into the flow If the product has particulate matter in the fluid like sand this will sandblast the lens and could cause premature failure DO NOT attempt to screw the OFD sensor either in or out by hand Always use a 1 1 4 or 1 3 8 wrench on the wrench flat below the elect...

Page 9: ...N TS Minimum 8 20 3 cm DO NOT use teflon tape on the OFD sensor threads DO use liquid thread sealant DO install the OFD sensor with a minimum of 8 or 200mm be tween the lens and the nearest flat surface DO install the OFD sensor with a sun shade if the electronics are directly exposed to sunlight ...

Page 10: ...e This ensures that the probe is not damaged when pigging the pipeline NOTE If line pressure exceeds 100 psi use a KAM IT Insertion Tool when installing removing the KAM OFD sensor Lay the OFD sensor on the ground or a table Loosen Socket Cap Screws on the locking collar This will allow the OFD shaft to slide through the seal housing Push the OFD shaft though the seal housing until the OFD probe s...

Page 11: ...e insertion distance for Flanged Seal Housing If you have a MNPT Seal Housing proceed to step 9 Total Insertion Distance TID D1 Pipe Wall Thickness Seal Thickness 1 4 Example for D1 19 Pipe WT 3 8 and Seal Thickness is 1 8 TID 19 3 8 1 8 1 4 or TID 19 375 125 25 TID 19 1 4 or 19 25 7 5 6 FIG 3 5 Use the calculated TID and mark a second line on the shaft measuring from first mark FIG 3 6 8 First Ma...

Page 12: ...or female connection to the top of the Seal Housing body and subtracting that distance from 5 25 FIG 3 7 First mark Second mark FIG 3 8 TID Measuring points For example If the measured distance from the top of the valve to the top of the seal housing body is 4 75 you would calculate the threaded depth TD by subtracting 4 65 from 5 25 5 25 4 65 0 6 In this case the threaded depth TD would be 6 You ...

Page 13: ...ing Collar FIG 3 9 FIG 3 9 12 13 14 15 I N S TA L L AT I O N C O N T I N U E D Second Mark REMOVINGTHE OFD SENSOR To remove the OFD sensor first disconnect all electrical connections to the OFD enclosure Make sure that the line pressure is below 100 psi Then slowly and with caution loosen the Socket Cap Screws on the Lock Down Collar NOTE Once the Socket Cap Screws have been loosened the OFD shaft...

Page 14: ... OFD sensors should be installed according to FIG 3 10 The OFD sen sor should be installed in an analyzer loop in such a fashion that the flow sweeps across the probe lens rather than rushing directly at the probe The reason for this is to 1 obtain a credible reading of the product pipeline interface 2 keep the lens of the probe clean and abrasion free If the OFD is installed with the product rush...

Page 15: ...t output source powered 4 20 mA 3 3VDC OFFSET 5VDC GAIN 5VDC D 5VDC A TP5 TP2 GND TP7 TP1 TP3 TP4 3939 ANN ARBOR DRIVE HOUSTON TX 77063 Tel 1 713 784 0000 Fax 1 713 784 0001 www Kam com KAM OID MADE IN USA RS232 RXD CHS GND RS232 TXD GND 24 12 VDC 24 12 VDC 485 RX CHS GND 485 TX CHS GND 4 20 mA 4 20 mA CAUTION OFD provides the power for the 4 20 mA load Do NOT apply external voltage as this will d...

Page 16: ...ing 16 AWG braided wire Ensure that the box is connected to Earth ground either through the pipeline or appropriate low impedance buried grounding structure NOTE CHS is isolated from GND Grounding CHS to pipeline through the grounding screw will not short OFD GND to the pipeline To connect the power for the OFD sensor first check both wires from the source for polarity and voltage then label appro...

Page 17: ...at the factory and should not be adjusted REQUIRED TOOLS VOLT METER SMALL FLAT HEAD SCREWDRIVER CHANGINGTHE HIGH END OF OUTPUT RANGE IN LINE Determine when fluorescent dyed product will be at sensor Connect a volt meter across 4 20 mA terminals With fluorescent dyed product flowing increase the gain by turning GAIN FIG 4 1 counterclockwise or decrease by turning clockwise As you are turning look a...

Page 18: ...IN 5VDC D 5VDC A TP5 TP2 GND TP7 TP1 TP3 TP4 3939 ANN ARBOR DRIVE HOUSTON TX 77063 Tel 1 713 784 0000 Fax 1 713 784 0001 www Kam com KAM OID MADE IN USA RS232 RXD CHS GND RS232 TXD GND 24 12 VDC 24 12 VDC 485 RX CHS GND 485 TX CHS GND 4 20 mA 4 20 mA FIG 4 1 Maximum Output Range Adjustment ...

Page 19: ...D INSPECTION DIAGNOSTICS VIA RS232 Install RealTerm if not installed on your PC RealTerm Software can be Downloaded at http sourceforge net projects realterm files Realterm 2 0 0 70 Click on Realterm_2 0 0 70 _setup exe to install Connect the RS232 cable to the OFD as shown in the wiring diagram FIG 3 12 on page 15 Connect the other end of the RS232 Cable to your computer serial port or to USB wit...

Page 20: ...e settings as follows a Baud 115200 b Parity None c Data Bits 8 d Stop Bits 1 e Hardware Flow Control None f Port Select Port number assigned to your serial port or USB to serial converter g Click on the Change button to save these settings 6 Port settings Change to save Select port number FIG 5 2 Port tab ...

Page 21: ...ge on the window displaying the software version number the version date and the schematic version of the board 7 8 9 M A I N T E N A N C E C O N T I N U E D FIG 5 3 EOL section Command boxes Send tab To view output data type the command ostart c 20 and click on Send ASCII See FIG 5 4 on page 22 10 11 Type the command ostop c to stop the data Always do this before disconnecting ...

Page 22: ...trolled by a thermoelectric cooler inside the photodiode The factory temperature is between 14C and 16C Column 7 Reference Voltage that controls the High Voltage supply This value should be between 720 to 880 VDC Column 8 Value of the photodiode monitoring the LED when it is OFF This value is shown in counts and should be less than 50 Column 9 Value of the photodiode monitoring the LED when it is ...

Page 23: ...SET 0 Register No Type Description 42000 32bit Float Signal Offset 42001 32bit Float Sinal In from Photodiode 42002 32bit Float LED OFF status 42003 32bit Float LED ON Status 42004 32bit Float Electronics Temperature in Celsius 42005 32bit Float 0 100 Output 42006 32bit Float 4 20mA Output OFD Holding Modbus Registers SETTINGS ...

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