NUFLO Series 1000 Watercut Monitor IOM
Contents
1. CAMERON Measurement Systems NUFLO Series 1000 Watercut Monitor User Manual Manual No 100080001 Rev 01 2007 Cameron International Corporation Cameron All information contained in this publication is confidential and proprietary property of Cameron Any reproduction or use of these instructions drawings or photographs without the express written permission of an officer of Cameron is forbidden All Rights Reserved Printed in the United States of America Manual No 100080001 Rev O1 April 2007 Table of Contents Introduction ko ks kk kwa in e aii 1 lef tike ki ik n ia a e a on ek ka a a A n a ak T n a Ia CD ranana Enna aiena 1 MES CAN A WON aida ia a daa 1 El ctrical GONNSCUONS sn kap kek e TS 4 Power Supply Configurations neeennnnss 5 Two Power Supply Operation see 5 Single Power Supply Operation mai a ao oi ocios 6 Ga IDEA YON au kwoke kok wa tw ko n a retire a a kak ka po n a n a a a a a w a e la 7 Calibration of the Crystal Controlled Oscillator 1 8 Analog Output Calibration sis 8 Spare Parts IS nain init a 10 April 2007 April 2007 Introduction The NuFlo Series 1000 Watercut Monitor consists of the NuFlo Capacitance Probe and additional circuit cards The frequency generated by the probe oscillator circuit varies according to the watercut of the emulsion flowing through the capacitance probe This frequency however does not vary linearly with the2. 102 9 m gu geem enes zesn aml ne ees n9 lealea 80 5 10 304 8 209 6 293 1 172 127 26 9 1 6 22 2 102 9 le con coseno t2 ne oral e l zluws 80 10 20 304 8 209 6 293 1 172 127 31 8 6 4 22 2 102 9 om deg AF een jnsza eee no ueno 100 1 96 304 8 228 6 815 1 184 7 157 2 22 4 1 6 19 1 115 6 BRE RE Ra EJ EO IBN E 100 5 10 304 8 254 328 2 184 7 157 2 30 2 1 6 22 2 115 6 Lem von geemjersn esre neen nsra nen ea leseluise 100 10 20 304 8 273 1 337 8 184 7 157 2 38 1 6 4 25 4 115 6 Lom gem 1 oa leros seo er nlersalzsa a ealisi 150 1 96 304 8 279 4 368 3 212 1 215 9 23 9 1 6 22 2 142 5 150 5 10 304 8 317 5 387 4 212 1 215 9 35 1 1 6 22 2 142 5 om cozy lcualeselsaleenceelueleel Jeselaizs gt 150 10 20 304 8 355 6 406 4 212 1 215 9 47 8 6 4 28 6 142 5 April 2007 3 Electrical Connections To maintain the explosion proof rating of this device the electrical installation must conform to all applicable electrical code requirements The watercut monitor must be connected to a substantial earth ground and a conduit seal must be installed within 18 in of the instrument The conduit seal may be purchased locally To connect the earth g
3. PROBE SIGNAL T POWER ai IN T ANALOG OUT Figure 1 Electrical connections Power Supply Configurations Two Power Supply Operation In this configuration a floating analog output is possible In the two power supply mode of operation the 4 20 mA is powered by one supply while the second power supply runs the digital circuitry Because the digital circuit ground is almost always connected to the earth ground through the body of the capacitance probe this power supply cannot be floating The digital circuitry power supply must have an output of 12 to 30 Vdc The watercut monitor should be wired as shown in Figure 2 A minimum 200 mA current capacity is recommended for this power supply Maximum ripple should be 5 mV peak to peak The power supply for the analog output must have an output between 24 and 30 Vdc depending on the load Maximum ripple should by 5 mV peak to peak Refer to Figure 3 for the loop voltage required April 2007 5 POWER SUPPLY 12 30 VOLTS 100005136 UPPER paf WATERCUT owen i MONITOR IN ido CIRCUIT AnALoG CARD POWER SUPPLY _ 24 30 VOLTS Figure 2 Two power supply configuration 700 o E S 600 o o c S o ki amp 500 Oo oO o l 400 24 26 28 30 Supply Voltage Figure 3 Maximum load resistance Single Power Supply Operation In this configuration a floating analog output is not possible The digital circuit ground whic
4. watercut the additional circuitry compensates for this non linearity and yields a linear 4 20 mA current output signal NuFlo watercut monitors are CSA certified as explosion proof for Division 1 Class I Group C amp D hazardous locations Specifications Watercut Range 0 to 100 percent other watercut ranges are available consult your Cameron representative Input Power 12 to 30 VDC at 150 mA max terminals 3 amp 4 Current Loop Power 24 to 30 VDC at 24 mA max Power is customer supplied and terminals 1 8 2 must have less than 5mVac ripple Output Current Operating 4 mA to 20 mA adjustable Range Accuracy 1 watercut over 0 to 50 range with homogeneous emulsion Pressure Rating Varies with end connection see pages 2 and 3 Operating Temperature O F to 158 F 17 C to 70 C Probe Body Material Stainless Steel 316 316L Probe Flange Material Carbon Steel ANSI B16 5 Mat l Group 1 1 Due to changes in the phase of oil that occur at watercuts above 50 and the inability to determine the point at which these changes will occur the accuracy of watercut measurements above 50 cannot be predicted Installation Watercut monitors must be installed vertically with either end up This orientation helps maintain a constant liquid fill with no trapped air The monitor s position should allow easy access to the circuit board housing to facilitate calibration and maintenance Se
5. e pages 2 and 3 for dimensions of watercut monitors with various style and size connections April 2007 1 5 29 C 133MM 650 17MM y i i i i i p w 4 1 2 NPT CONDUIT THREAD 2 PLACES Watercut Monitor Dimensions NPT Male Threaded Ends Nom Size Thread Max WP 2 2 in API LP 1000 50 6 9 Mpa 1 2 NPT CONDUIT THREAD 2 PLACES Watercut Monitor Dimensions Victaulic Grooved Ends Nom Size Groove Max WP ESE ee ba er el RE RUE NE 50 6 9 Mpa 254 60 2 209 157 7 57 2 6 5 14 3 88 6 3 3 in ES 1000 101002253 12 00 3 50 9 16 6 76 3 34 0 255 0 562 4 04 80 6 9 Mpa 304 8 88 9 232 7 171 7 84 8 6 5 14 3 102 6 April 2007 k 5 25 133MM 7 650 17MM 1 2 NPT 1 CONDUIT THREAD H ANGLE 8 PLACES Watercut Monitor Dimensions Raised Face Carbon Steel Flanged Ends mm b pet Pa rie repos 1 Ange BONN RE emo o aa aar aaz REFER 50 1 96 254 152 4 250 4 157 7 91 9 17 5 1 6 19 1 88 6 KA A RE ENEE IAN EA 50 5 10 254 165 1 256 8 157 7 91 9 20 6 1 6 19 1 88 6 en roam pss co esco 1977 ero ese e4 RAF 50 10 20 254 165 1 256 8 157 7 91 9 25 4 6 4 19 1 88 6 80 1 96 304 8 190 5 283 7 172 127 22 4 1 6 19 1
6. h is tied to the analog circuitry in the one power supply mode of operation is connected to the earth ground through the body of the capacitance probe The power supply used in this mode must have an output between 24 and 30 Vdc and a current capacity of at least 200 mA Maximum ripple should be 5 mV peak to peak The watercut monitor must be wired as shown in Figure 4 The loop voltage requirement again depends on the load but can never exceed 30 Vdc in this config uration Refer to Figure 3 for maximum load resistance values 6 April 2007 POWER SUPPLY 24 30 VOLTS 100005136 UPPER ip DO WATERCUT a4 POWER MONITOR CIRCUIT analoc l CARD Figure 4 Single power supply configuration Calibration Every NuFlo Capacitance Probe is calibrated before it leaves the factory However since the crude oil chemistry and fluid temperature used during the factory calibration may differ from the chemistry and temperature of fluid at the field location adjustment of the capacitance probe is usually necessary For proper calibration the probe must be completely liquid filled with no air trapped inside The probe may be installed or removed from the flow line during calibration To check the calibration of a capacitance probe perform the following steps 1 Fill the probe with clean dry crude oil from the location to be served Alternately a sample of oil with a non zero watercut may be used if
7. oducts software supplies and materials not manufactured by Seller and such will be sold only with the warranties that are given by the manufacturer thereof Seller will pass only through to its purchaser of such items the warranty granted to it by the manufacturer MEASUREMENT SYSTEMS Formerly NuFlo Measurement Systems Barton Instrument Systems Caldon Inc NORTH ASIA EUROPE MIDDLE EAST AMERICA PACIFIC amp AFRICA 1 800 654 3760 603 2287 1039 44 1243 826741 ms us Q c a m com ms asiapacificGc a m com ms uk c a m com HOUSTON HEAD OFFICE 281 582 9500 www c a m com flo USA Houston TX Corpus Christi TX Kilgore TX Odessa TX Dallas TX Tulsa OK Duncan OK Denver CO Bakersfield CA Shreveport LA Lafayette LA Houma LA e Pittsburgh PA e Laurel MS e Dunbar WV Casper WY Charleston WV CANADA Calgary AB e Edmonton AB INTERNATIONAL Aberdeen Scotland Beijing China Bognor Regis UK Dubai UAE e Hassi Messaoud Algeria e Kuala Lumpur Malaysia Singapore C CAMERON
8. robe Calibration of the Crystal Controlled Oscillator The crystal controlled oscillator which controls the gate period during which probe pulses are counted is calibrated at the factory and should not require adjustment However the frequency may be adjusted by a trimmer capacitor on the Lower Watercut Monitor circuit card For best accuracy bring the unit to operating temperature and allow it to stabilize before adjusting the trimmer capacitor A hole in the Upper Watercut Monitor circuit card allows easy access to the trimmer capacitor with a small adjustment screwdriver The trimmer cap should be adjusted until the frequency from the oscillator is 32 768 kHz plus minus 1 Hz The crystal frequency may be monitored on test point T1 on the Upper Watercut Monitor circuit card Analog Output Calibration The analog output is calibrated at the factory and should not require adjustment If field adjustment is needed note that optimum accuracy will be achieved by calibrating the unit at the temperature it will see in service 1 Connect the watercut monitor as per Figure 2 or Figure 4 replacing the load in either case with an accurate milliammeter that reads to 0 01 mA accuracy 2 Connect a frequency generator to terminals 5 and 6 3 Set the output of the generator for a 0 to 2 volt square wave at 1025 000 kHz plus minus 15 Hz 4 Adjust the ZERO potentiometer on the Upper Watercut Monitor circuit card until the analog output i
9. round to the watercut monitor perform the following steps 1 Unscrew the circuit card housing cover 2 Note the orientation of both circuit cards and then carefully remove them 3 Connect the ground using the grounding screw and wire terminal in the bottom of the card housing 4 Reinstall the Lower Watercut Monitor circuit card Part No 100005135 as follows a Insert the two banana plugs on the card into the jacks in the bottom of the card housing b Insert the antenna connection screw through the center hole of the card and tighten securely 5 Reinstall the Upper Watercut Monitor circuit card Part No 100005136 as follows a Insert the connecting pins on the bottom of the upper card into the socket on the lower card b Place two screws through the upper card into the lower card standoffs to attach the upper card to the lower card and tighten securely 6 Reinstall the housing cover The watercut monitor s flexible design allows it to be easily connected to its host equipment see Figure 1 The 4 20 mA output is optically isolated from the other circuitry in order to provide a floating analog output This mode of operation requires two power supplies that are isolated from the host system or the use of the optional isolating power supply board 66 66 In any configuration the load in the current loop must be placed between the 4 20 mA output terminal 2 and the power supply common output terminal of the 4 April 2007
10. rts are recommended for the Series 1000 Watercut Monitor Quantity Part Number Description 1 100005135 Circuit Assembly Lower Watercut Monitor Board 1 100005136 Circuit Assembly Upper Watercut Monitor Board 1 100015379 Antenna O ring Specify probe size and watercut range 10 April 2007 WARRANTY LIMITATION OF LIABILITY Seller warrants only title to the products software supplies and materials and that except as to software the same are free from defects in workmanship and materials for a period of one 1 year from the date of delivery Seller does not warranty that software is free from error or that software will run in an uninterrupted fashion Seller provides all software as is THERE ARE NO WARRANTIES EXPRESS OR IMPLIED OF MERCHANTABILITY FITNESS OR OTHERWISE WHICH EXTEND BEYOND THOSE STATED IN THE IMMEDIATELY PRECEDING SENTENCE Seller s liability and Buyer s exclusive remedy in any case of action whether in contract tort breach of warranty or otherwise arising out of the sale or use of any products software supplies or materials is expressly limited to the replacement of such products software supplies or materials on their return to Seller or at Seller s option to the allowance to the customer of credit for the cost of such items In no event shall Seller be liable for special incidental indirect punitive or consequential damages Seller does not warrant in any way pr
11. s 4 00 mA 5 Remove the frequency generator signal from pins 5 and 6 6 Place a jumper across terminals 5 and 6 to short the terminals together 7 Adjustthe SPAN potentiometer which is also on the Upper Watercut Monitor circuit card until the analog output is 20 0 mA 8 Remove the jumper from terminals 5 and 6 9 Reapply the 1025 000 kHz signal to terminals 5 and 6 10 Adjust the ZERO potentiometer for 4 00 mA loop current 11 Remove the signal and reconnect the jumper to terminals 5 and 6 8 April 2007 12 Readjust the SPAN potentiometer until the output current is 20 0 mA 13 Repeat Steps 8 through 12 several times if necessary until the adjustments cease to interact Table 1 Watercut Percentage vs Frequency 2 Probe Frequency 3 Probe Frequency 4 Probe Frequency 6 Probe Frequency Watercut Percent Hz Hz Hz Hz 1024930 1024860 1024790 1024720 1024646 1024872 1024494 1024416 1024338 1024260 1024182 1024104 1024028 1023948 1023870 1023788 1023736 1023684 1023572 1023460 1023049 1022630 1022207 1021770 1021330 1020875 1020417 1019915 1019414 1018965 1018520 1018020 1017519 1017010 1016499 1015970 1014895 1013720 1012655 1011490 1010295 1009070 April 2007 Table 1 Watercut Percentage vs Frequency 2 Probe Frequency 3 Probe Frequency 4 Probe Frequency 6 Probe Frequency Watercut Percent Hz Hz Hz Hz Spare Parts List The following spare pa
12. the watercut percentage is accurately known and the emulsion is homogeneous 2 Set the probe output frequency e If clean dry crude oil is used set the probe output to 1025 000 kHz e Ifa crude sample with a non zero watercut is used perform the following a Verify the exact watercut percentage b Look up the frequency that corresponds to the watercut percentage and probe size in Table 1 pages 9 and 10 and set the probe output accordingly 3 Bring the entire assembly to the temperature it will experience in service Note This step is extremely important since differences between calibration temperature and operating temperature can cause significant measurement inaccuracies 4 Observing polarity connect a 12 to 30 Vdc power supply to terminals 3 and 4 and check the frequency on terminals 5 and 6 with a frequency counter Allow the unit to stabilize until the output frequency remains constant The target frequency may be found in Table 1 pages 9 and 10 April 2007 7 5 Ifthe probe frequency is not within 15 Hz of the value specified in the table adjust the probe oscillator as follows a Unscrew the pipe plug in the trimmer capacitor access hole b Using a non metallic tool adjust the trimmer capacitor on the probe circuit assembly until the output frequency agrees with the table entry c Replace the pipe plug in the trimmer capacitor access hole This is the only adjustment required to calibrate the capacitance p
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