Clif Mock
Contents
1. ka 47 NuFlo Measurement Systems JOB SERIALZ MODEL PH Hz DATE BONE August 2004 CD20 SFA 115VAC Assembly Part No 50132307668 Parts List CONTROL NO DESCRIPTION 1 1 50142304856 ENCLOSURE 2 1 50142307664 SPEED CONTROL 115VAC 3 1 50142307700 MOTOR CS CD DRIVE 4 1 50142382006 HUB ASSEMBLY CD DRIVE 5 1 50142200170 JAM NUT CS CD DRIVE 6 1 50142150932 DRIVE COUPLING ASSY DC 2 7 1 50142307695 DRIVE SHAFT 8 1 50142381667 COUPLING CAM MOTOR ASSEMBLY 9 1 50142309906 PROXIMITY SWITCH E1 08 01 NACS 10 1 50142307686 ADAPTER PLATE 11 1 50142304632 PLUG 1 2 CONDUIT 12 1 50142307696 SNAP RING 13 1 50142200101 TAG ELECTRICAL CD DS DRIVE 14 4 50025400765 DRIVE SCREW 2 x 3 16 15 11 50142307693 BINDER HD SCREW 8 32NC x 1 2 LG 16 11 50142307694 WASHER HUB SCREW 8 17 1 50142304642 BREATHER 1 2 PLUG 18 1 50142400194 JUMPER RDI J4 02 19 1 50142200109 CAUTION TAG CD20 SFA CD20 SFA CD30 DRIVES 20 1 50142304858 HUMISORB PACKET 107HX 4 x4 August 2004 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 workmanship2. J NuFlo Clif Mock CD20 SFA 115VAC Sampler Drive User Manual 4a NuFlo Measurement Systems A NuFlo Technologies Company Manual No 20165017 Rev A 2004 NuFlo Technologies Inc All information contained in this publication is confidential and proprietary property of NuFlo Technologies Inc Any reproduction or use of these instructions drawings or photographs without the express written permission of an officer of NuFlo Technologies Inc is forbidden All Rights Reserved Printed in the United States of America Manual No 20165017 Rev A August 2004 Table of Contents DESCHIDUIONN aaa MUA AA aaa Installation and Wiring ul aNG KANG BA NGBGGKAK GANA KANY GG GANAN Start Up Proced re siini AB ANAN cage ded goniuialdannndebuogieantannis Pre Test PIO COU aa AN NAAN AA AA AA ENEE D Repeat Mode Check Out cccccceeeeeeeeeeeeeceeeeeeeeeeeseeeaaeeeaaaeeeeeeeeeeeeeacaaeaeeeeeeeeeeeees External Input Pulse Mode Check Out ccccceeeeeeeeeeeneceeeeeeeeeeeeeeenaaeeeeeeeeeeeeeeees Sample Probe and CD20 SFA Check Out cccccceeeeeeeeeseeeeeeeeeeeeeeeeseesesaneneeeeeees Motor Control Opera NON aa GAGANA Control Card Functions Power Board FUNCHON Shirasi ANAN ANA NA ANNA AA NIAN Troubleshooting LANANG NANANA ANA Sampler Drive Schematic aaa a Bill of Materials August 2004 August 2004 Description The CD20 SFA 115VAC Control and Drive Assembly Part No 50132307668 is
3. 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 products 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 49 NuFlo Measurement Systems NuFlo Measurement Systems 14450 John F Kennedy Blvd Houston TX 77032 www nuflotech com North America UK 800 654 3760 44 1243 826741 281 582 9500 Houston Singapore 877 891 6540 Calgary 65 6737 0444
4. engineered specifically for use with the True Cut C Series sample probes It comprises the following components e a motor speed control that provides pulse input flow proportional control of the sample probe When a start pulse is received at the CD20 SFA control card input the probe is rotated 180 degrees to capture and discharge a single 1 5 ml isokinetic sample On a horizontal line the probe is stopped in the closed position while on a vertical line the probe is stopped in the open position A probe failure alarm relay provides an output contact that is open as long as a sample has been taken within the alarm delay period set on the control card potentiometer Alarm delays ranging from 6 seconds to 6 minutes can be set e a9VDC gear motor with a gear ratio of 150 1 e acam with two high points located opposite each other mounted on the gear motor output shaft e a proximity switch mounted in the hub assembly opposite the cam When a high point on the cam is opposite the proximity switch the PROX Hold LED will be illuminated This signal indicates the sample probe is at the stop and hold position e a coupling jam nut and hub which allow the CD20 SFA Control and Drive Assembly to be mounted directly to the C Series sample probe No brackets or supports are required but they are advisable on pipelines with some vibrations e anexplosion proof housing encloses the complete assembly Two 34 in NPT holes allow connect
5. the PROX Hold LED indicator U2C is the proximity switch amplifier The voltage across the proximity switch 2TB 3 to 2TB 4 on the power board will be nominally 8 VDC when the proximity switch is sensing metal and 4 VDC when the proximity switch is sensing an absence of metal Latch USB outputs a single 20 msec one shot pulse to reset the RUN STOP latch USA when the proximity switch first senses a high point on the cam Power Board Functions The CD20 SFA power board provides the following functions Fuse F1 2 amp fast acting provides short circuit protection ZD1 a 33V crowbar zener diode provides over voltage protection for the rest of the circuit Diode D2 prevents current flow if 115 VAC power is connected to the common terminal and a ground is connected to the 115 VAC terminal Q4 an LT1074CT switching regulator and associated circuitry efficiently convert the 115VAC into a regulated 6 3VDC motor supply voltage The control card uses motor armature feedback to set the speed command to the motor driver power FET Q2 A stop command from the control card to QI provides motor braking which prevents the motor from coasting past the stopping point R6 is the motor current feedback resistor The motor current is limited to 3 0 amps Fuse F2 2 amp slow blow will open in less than 1 minute if the motor is stalled locked rotor August 2004 Troubleshooting Problem Input power fuse F1 is open Motor f
6. g acceleration of the CD20 SFA motor After the motor reaches the 16 18 rpm running speed the I LIMIT LED should turn off 2 August 2004 Note The PROX Hold LED should be off while the motor is running and turned on when the motor stops 7 Verify that the alarm relay contact is closed after power is applied and that it opens after the alarm delay period has lapsed External Input Pulse Mode Check Out 1 Disconnect the 115VAC input power from the CD20 SFA 2 Remove the switch and wire in the external input pulse source 3 Reapply 115VAC power to the CD20 SFA 4 Verify that the CD20 SFA output shaft rotates 180 degrees for each external input pulse Note Any internal coincidence pulses that provide the next start command for the CD20 SFA must occur when the CD20 SFA is stopped and the PROX Hold LED is on The maximum valid flow proportional sampling rate is 2 5 seconds per sample 24 samples min Sample Probe and CD20 SFA Check Out 1 Disconnect VAC power from the CD20 SFA 2 Mount the CD20 SFA to the sample probe and hand tighten the DC 2 coupling 3 Verify that the product line is full and pressurized 4 Hold a 100 ml graduated beaker or other applicable measuring device under the probe s discharge port and collect 10 samples Each sample should be 1 5 ml in size the total volume for 10 samples therefore should be 15 ml Motor Control Operation The CD20 SFA motor control assembly consist
7. ion of the 115VAC line power and input pulse for flow proportional sampling A 2 in breather plug is installed on one side of the enclosure and a 2 in conduit plug is installed on the opposite side of the enclosure Installation and Wiring The CD20 SFA mounts directly to the C Series sample probe via the DC 2 coupling The DC 2 coupling should be hand tightened only to ensure that the internal retaining ring is not pushed out of its groove If the DC 2 coupling is over tightened at the CD20 SFA hub the motor shaft will not engage the DC 1 not shown coupling on the probe Use the following steps to install field wiring to the CD20 SFA 115VAC Figure 1 1 Connect 115VAC power to 1TB 1 and 1TB 2 2 Connect the flow pulse input contact to 1TB 5 signal and 1TB 6 common If an open collector transistor driver is used the collector must connect to 1TB 5 and the emitter must connect to 1TB 6 Note The pulse contact must be closed for at least 5 msec to produce a start pulse Note If an electronic square wave is used it must have a pulse amplitude of 12VDC A 5VDC square wave will not work Connect the sample failure alarm relay contact to 1TB 3 and 1TB 4 The contact will remain open as long as sampling occurs within the alarm delay period This contact is rated for 90VA resistive and 30VA inductive loads It is suitable for use with 115 VAC low current August 2004 1 PROX Hold LED gt 1TB 6 Pulse Inpu
8. s of a control card and power board mounted to a ring which in turn is mounted to the back of the CD20 SFA gear motor All field connections are to terminal block 1TB on the control card The motor and proximity switch connections are made at the factory to terminal block 2TB on the power board Control Card Functions The CD20 SFA control card performs the following functions e Components C7 R12 CR5 and a U4 gate provide a 100 msec power up reset e An alarm delay timer circuit is implemented with U3 C6 C10 R4 R1 and a U4 gate This circuit is reset every time a sample is taken and on initial power up U3 counts oscillator pulses and de energizes relay 1CR after counting 2048 clock pulses from U4 pin 6 The alarm delay time is increased by adjusting R1 clockwise Alarm delays ranging from 6 seconds to 6 minutes can be selected via R1 e An input filter circuit connected to 1TB 5 buffers incoming pulses from an external flow measuring device The filter has a 2msec time constant and the input pulse duration must be at least 5 msec to assure a Start pulse output e When set by a start pulse the RUN STOP latch USA outputs the speed command voltage to the summing point control amplifier U2A e Amplifier U2B provides current feedback to the summing point control amplifier U2A e Resistor R19 provides armature voltage feedback to the summing point control amplifier U2A August 2004 3 DS2 is the current limit LED indicator DS1 is
9. t Emitter _ 1TB 5 Pulse Input Collector m 1TB 4 Failure Alarm 1TB 3 Failure Alarm lt _1TB 2 115 VAC Power N lt Y 1TB 1 115 VAC Power H Figure 1 Field wiring of CD20 SFA 115VAC assembly Start Up Procedure The start up procedure consists of four steps a pretest a repeat mode checkout an external input pulse mode checkout and a sample probe control drive checkout Each of these is described below Pre Test Procedure 1 Disconnect the CD20 SFA control and drive assembly from the sample probe 2 Connect a pushbutton switch across 1TB 5 and 1TB 6 for test purposes Repeat Mode Check Out 1 Apply 115VAC input power to the CD20 SFA 2 Verify that the PROX Hold LED is on when the motor is not turning 3 Close the switch across 1TB 5 and 1TB 6 to apply a pulse 4 Verify that the output shaft turns ina CLOCKWISE CW direction as you look at the shaft The sample probe will then be rotated COUNTERCLOCKWISE CCW when the CD20 SFA is connected to it If the direction of motor rotation is wrong swap the motor armature leads at 2TB 1 and 2TB 2 5 Verify that the CD20 SFA output shaft rotates 180 degrees and stops after each switch closure input It should take about 2 5 seconds for the motor to rotate 180 degrees and stop Note Any switch closure made while the motor is turning is disregarded by the control 6 Verify that the I LIMIT LED blinks on momentarily durin
10. use F2 is open Motor does not run and the current limit LED is off Motor continues to run The PROX Hold LED never comes on or blinks on and off Probable Cause Input power surge above 33VDC Short circuit on the power board Motor stall locked rotor Short circuit in motor armature circuit Input power not on or connected backwards Fuse F1 or F2 open Open circuit to motor armature Check 2TB 1 and 2TB 2 CD20 SFA 115VAC control failure No pulses of proper amplitude at 1TB 5 to 1TB 6 Broken or open proximity switch wire Check at 2TB 3 and 2TB 4 The proximity switch is not sensing the high points of the cam due to misalignment CD20 SFA 115VAC control failure power supply board August 2004 CD20 SFA 115VAC Assembly Part No 50132307668 Oy i CAUTION d DO NOT CONNECT ANY AC POWER CURRENT or VOLTAGE TO PULSE INPUT TERMINALS UNIT REQUIRES ANN 12 VOC SQUARE WAVE CURRENT p SINKING DEVICE NPN or OPEN EI AY DRAIN FET OR DRY CONTACT CLOSURE I N0 REMOVE JUMPER amp WIRE TAC BEFORE El E CONNECTING SIGNAL WIRES XXXX ws fo SN
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