ZOC 17 INSTRUCTION and SERVICE MANUAL
Contents
1. 9 5 Control Pressure Truth Table ices cee ad pa nace eee PRENO ae Shee a 10 6 20017 8 Channel Block sanirim dE ee EE e kele md E 11 7 Typical ZOC17 Thermal Control Unit TCU LL 12 8 20017 TCU Pneumatic Connections 13 9 ZOC TCU Pneumatic Connector 14 10 ZOC TCU Electrical Connections kiral ee Wa KPA a 14 11 Excitation Board Schematic EEN 16 12 ZOC17 8Px Transition Board e ei e A ik ed li de maki kai 17 13 Amplifier per Channel Boardlayout 18 14 APC Board Electrical Schematic Part 19 15 APC Board Electrical Schematic Part 20 16 20017 Mux Amp Board WEE 21 17 Mux Amp Board Schematic is 33 As dered ne di imi at es Sees bp Geeks oa Ree 22 18 Analog Address Bus Schematic ie EA 23 19 ZOC17 8Px Output Connector oi sw ccs Sana Sede hee RN E RENE Se eee NG 24 20 ZOC17 APC Output Connector once B a Ne eh 25 21 ZOC17 16Px Output Connector 26 tos ba os KARIT eee ee 25 22 SO Purge Valve Logic EE 26 23 20017 Sensor Replacement pp 28 24 ZOC Temperature Compensated Sensor pp 29 25 Identification Labels ZOC Temperature Compensated Sensors 30 SPECIFICATIONS Inputs Px Full Scale Ranges Accuracy Sensor Excitation Full Scale Output Operating Temp Compensat2. BF FSTADLISHED WHEN PURGO Px DUT il 3 PERGE SJPPLT TLE ELECTAICA CENNFTITR 3EFERERCE SALTS Figure 6 ZOC17 8 Channel Block 11 THERMAL CONTROL UNIT An optional Thermal Control Unit TCU is available for applications where temperature swings may be great enough to exceed the compensated range of the sensors and thus induce errors in the pressure measurements The TCU consists of a housing insulation and a simple heater which will maintain the temperature of the module at 50 5 C ln T ke Ela A 027 6 LH ES Ww bri DER lt lt form sms IYI F K S Figure 7 Typical ZOC17 Thermal Control Unit TCU 12 48ZOCM 1 ZOC17 16Px PORTNO ZOC17 16Px DUAL RANGE ZOC17 8Px ZOC17 8DPx ZOC17 8Px 4DPx ON 1 ros apxl eo l7 how gt i 3Ll0oWw 3 3705 apx3a 4 41w 4 apos apx4 O Cs stow fl 5 ine as 6 e LOW 6 NEG apx6 5 8 810W 8 4NEG apx8 9 9 1 Nr 5pos 4DPx 1P0OS RE REFHIGH REF CALNEGCH 5 8 REF 4DPx Figure 8 ZOC17 TCU Pneumatic Connections 13 Figure 9 ZOC TCU Pneumatic Connector Figure 10 ZOC TCU Electrical Connections OPERATION AND INSTALLATION All ZOC17 modules have been extensively tested prior to shipment All modules are packed to minimize the chances of shipp
3. by Scanivalve Corp Each valve block contains eight 8 Px inputs ZOC17 modules are capable of measuring pressures up to 500psid Control inputs consist of CTL1 and CTL2 These inputs are used to switch the valve logic to each of the four 4 states Operate Calibrate Purge and Isolate The pressure required to switch the valve logic is dependent upon the input pressure The 7 module family is only available in the ISO Purge Valve configuration Figure 21 shows the Iso Purge Valve Logic Calibration Reference Inputs consist of a Calibration input and a Reference input The Calibration input is an 063 inch O D tubulation It is normally connected to a source of calibration pressures Internally this input is manifolded to all of the sensors through the calibration valving The Reference input is a 125 inch O D tubulation It provides a point of reference for the transducers All of the sensors in each block of eight share a single reference Grip SE seal at PS teg hr STL PE ITL PG B 72 a 6 TE 8 1 Aling i 7 C ao PAA aa wet RZ EL T 1 N 1 em T PTE Ia L scat oA G LLE YOL YL KZ Hp LE Figure 22 ISO Purge Valve Logic 26 SENSOR INSTALLATION The sensors used in a ZOC17 module are laser trimmed temperature compensated sensors All offsets and spans fall within known limits This means that a ZOC17 module can be set up to support any full scale pressure range manufact
4. of each sensor is connected directly to the interface connector All sensor outputs are within a range of 30 to 150 mVdc depending upon the pressure range In any one module the sensors will be grouped so that all outputs are within 20 mVdc of one another All sensor zero offsets are normalized to 3 mVdc Figure 1 shows the ZOC 17 8Px Muxless Module Figure 1 ZOC17 8Px Muxless Module Z0C17 8Px APC Amplifier per Channel This module is a variation of the ZOC17 8Px Muxless Module It contains 8 sensors a calibration valve an excitation board and an amplifier interface board The output of each sensor is connected directly to the amplifier interface board where the signal is amplified to a nominal 2 5Vdc All sensor outputs are within a range of 2 2 to 2 8Vdc depending upon the pressure range and the output of the individual sensor In any one module the sensors will be grouped so that all unamplified outputs are within 20 mVdc of one another All sensor zero offsets are normalized to 3 mVdc The gain of each module is fixed at the factory when the module is manufactured All channels in a module will have the same gain but not the same output This module is also available with nominal outputs of 3 0Vdc or 5 0Vdc Figure 2 ZOC17 8Px APC Module Z0C17 16Px MULTIPLEXED This module contains 16 sensors two calibration valves an excitation board and a multiplexer amplifier The sensors are arranged in two groups of
5. Refer to the HyScan 1000 or HyScan 2000 Manual for more information 27 K 7 GET Figure 23 ZOC17 Sensor Replacement 28 LABEL ge U Du ra 35039 te SENSOR 7 CITATION gt S SONAL E wo ALIGNMENT PN 3 C3 1 H OEI A d 7 E N w SI NAL NEW A A APPROX SZE Figure 24 ZOC Temperature Compensated Sensor RED ORANGE SHT GLUC 10 WC 1 PS 2 5 35 B GREEN BLUE VIOLET 45 PSI 30 FSI BO FS 3 EB ES amp BZONN GR Y 250 FS 506 PSI YELLOW 5 PSI WHITE 100 PS ALAC BLANK o Figure 25 Identification Labels ZOC Temperature Compensated Sensors 30
6. ZOC 17 Temperature Compensated Electronic Pressure Scanning Module INSTRUCTION and SERVICE MANUAL 1722 North Marsan Street Liberly Lake YE 99019 Trl B00 916 0464 509 291 70 1 amen Gcanivalve Corp il Stuncoug scanlvalve cam TABLE OF CONTENTS SPECIFICATIONS es saan SEE ANS Ha wee EOLA ER AG een FER DAS 3 GENERAL DESCRIPTION tay e eh E 5 ZOCTHEPX MUXLESS sues eee ee e ee ei ae eee 6 ZOC17 8Px APC Amplifier per Channel 7 ZOCTZITOPX MUL TIPLE MED 2 a aerer eer a ulcer anes 8 ZOC17 8DPx TRUE DIFFERENTIAL ya tos BELA eda 9 ISOLATE PURGE VALVES EEN 10 Isolate Purge Mode Procedure ew tamiet bija seki iere A 10 THERMAL CONTROL UNIT ii a Binen ee ciel eal a 0 te ld ee 12 OPERATION AND INSTALLATION sulara 0 elele ib f Sd palace DA zelal B 15 Sirer beaters meali eee n gt dad ov ne Se ee alm oe 16 enson Board WEE 17 Amplifier per Channel Board 18 Multplexer AmplifierBoard 21 Electrical Inputs and Outputs ee ii a b ee ee ee ed rap 24 PReUMaAliCiMpUIS ileriki ekeni mek de i 26 SENSOR INSTALLATION See ari enamel eldi e NOES 27 FIGURES 1 ZOC17 8Px Muxless Module 13333 EE 6 2 ZOC17 8Px APC Module sss 7 3 ZOC17 16Px Module very a kana yyl a dr yle Go de sel 8 4 7OC17 8DPx True Differential Module
7. c 16 Transition Board The Transition Board is used on y in the ZOC17 8Px Muxless Module It plugs into the interface connector on the excitation board and adapts the output of the sensors toa 21 pin connector This connector is compatible with all other ZOC Muxless Module connectors 1 E 3 4 5 LI 7 5 LI Figure 12 ZOC17 8Px Transition Board 17 Amplifier per Channel Board The Amplifier per channel board APC is a special purpose board which is used with a ZOC17 8Px Muxless module to provide a buffered and amplified output for each individual channel Each sensor output is amplified to a nominal 2 5Vdc The actual outputs will fall in a range of 15 of the nominal output 6 46 6 6 6 6 6 6 6 5 oor ke K hn se mu sa Ku U nu Figure 13 Amplifier per Channel Board Layout 18 UE Ku H 15 1 Giri 2 CAZ 4 5 1E kif UE 2 H t 15V_3 ite 15 CR4 Ap 4 5 1 11 iz GRG t 15 5 te 1848 CRE E p2 a C Sr ne GP AS Fa B3 ki i TE NU Ap g ed D Ca GNO E7 CE De 3 His GES All tee B 1 L Aia gir B12 Cani 813 lt A Atat B14 lan ais A A HE T 10D 832 023 Figure 14 APC Board Electrical Schematic Part 1 19 Tah ANSLEY 25RA2JE 5 57 SI57 152 5166 SICB ka Figure15 APC Board Electrical Schematic Part 2 20 Multiple
8. ed Range Temp Sensitivity 8 Muxless APC DP or 16 Muxed 10 inch H20 2 5 kPa 1 2 5 5 15 50 100 200 500 and 750 psid 7 17 35 100 350 700 1400 3500 and 5250 kPa 065 FS 1 5mA Constant Current Muxless 40 to 100mV 3mV Each Sensor Muxed 2 5Vdc Addressed channel APC 2 5Vdc per channel nominal 3 0Vdc or 5 0Vdc optional 0 to 65 C Standard 0 to 125 C optional 0 to 50 C Zero 0 009 FS C Span Overpressure No Damage 1 psid 7 kPa 2 5 100 psid 17 700 kPa 200 psid 1400 kPa 500 psid 3500 kPa 750 psid 5250 kPa 5 psi 85 kPa 4xFS 600 psi 4200 kPa 750 psi 5250 kPa 750 psi 5250 kPa Max Ref Press 10 inch 2 5 psid 35kPa 40 psia 275 kPa 5 psid 50 psid 35 350kPa 100 psia 700 kPa gt 50 psid 350 kPa 250 psia 1725 kPa Media Gases compatible with Silicon Silicone Aluminum and Buna N Connector Type Muxless 21 pin MDM 21SL2P Muxed 15 pin MDM 15SL2P APC DB25P Power Requirements Weight Accessories Muxless 15Vdc 25 mA APC 15Vdc 200 mA Muxed 15Vdc 100 mA Muxless 1 5 lbs 680g APC 1 75 lbs 795g Muxed 3 0 Ibs 1 36kg Mating Connectors furnished GENERAL DESCRIPTION The ZOC 17 is an electronic pressure scanner which can accept up to 16 pneumatic inputs Each ZOC17 module incorporates up to 16 individual temperature compensated piezoresistive pressure sensors Each pressure sensor is ma
9. eight Each group of eight sensors may be a different range The output of the pressure sensors are amplified to a nominal 2 5Vdc corresponding to the channel selected by a 4 bit binary address CAL REF CAL 5 Pxl 4 CTLE 17 ZAL PIS Figure 3 ZOC17 16Px Module Z0C17 8DPx TRUE DIFFERENTIAL This module contains 8 sensors two calibration valves an excitation board and a multiplexer amplifier The sensors are arranged in two groups of four sensors Each group of four sensors may be a different range The output of the pressure sensors are amplified to a nominal 2 5Vdc corresponding to the channel selected by a 4 bit binary address This module has a modified setup such that each sensor has its own reference input This permits the measurement of true differential pressures Figure 4 shows a ZOC17 8DPx Module The broken lines show the pressure path for the reference inputs The transducers with the through paths are dummy transducers Only four transducers are shown for clarity CA RFF CAL PUS Pal 4 PS Px K Fd PJRGE go SMURCE AF ah Vets HEH i rt PRI CIL dpe as ET Pxi 4 Ng 7 Figure 4 ZOC17 8DPx True Differential Module ISOLATE PURGE VALVES The Isolate Purge option adds another set of valving which permits the input lines to be purged at pressures up to 750psi This option permits the safe use of a high pressure purge of low pressure in
10. er 1 gt Lues 0 0 3 SKS mud l KD oe 8 S x pti Ti Figure 17 Mux Amp Board Schematic 22 SHE RE Figure 18 Analog Address Bus Schematic 23 Electrical Inputs and Outputs The Electrical Input and Output wiring is compatible with all other ZOC modules The ZOC17 may be installed into existing HyScan Systems without changing configurations Figure 19 shows the output connector pin assignments of the ZOC17 8Px Muxless Module Figure 20 shows the output connector pin assignments of the ZOC17 8PxAPC Muxless Module Figure 21 shows the output connector pin assignments of the ZOC1 7 16Px Multiplexed Module N C 15Y CH1 516 OI Sib CH2 516x CAZ 516 2 1 1 T CH3 516 29 1 CH3 SIL 9 HE CHA_STha CHA SIG 17 4 H 5 CH5 SIGs CHS 51G 15 E l 1 CIl6 SIG CH6 SIG 13 d H CH7 518 cH SIG 2 CHB 511 CHE SIG GHD 115 G U faNNON TIN 713SL2P Figure 19 Z0C17 8Px Output Connector 24 o w SI 7 SI 6 SIGE DB 255 PINOUT Figure 20 ZOC17 APC Output Connector DD DG UN ka Figure 21 Z0C17 16Px Output Connector 23 Pneumatic Inputs Pneumatic inputs consist of Px Inputs Control Pressure Inputs CTL1 amp CTL2 and Calibration Reference Inputs Each valve block has its own set of pneumatic inputs All Px inputs are 063 inch bulged tubulations These tubulations are designed to accept any 063 inch tubing manufactured
11. ing damage However damage can still occur The customer must inspect modules and shipping materials for obvious signs of damage If it is suspected that damage may have occurred the customer should contact Scanivalve Corp Technical Services Department immediately ZOC17 modules are designed to function best when used with one of the Scanivalve Corp HyScan Data Acquisition Systems They can also be used as a stand alone module with a customer s data system or with other High Speed Data Acquisition Systems 15 Excitation Board Each block of eight 8 sensors has its own excitation board The excitation board consists of a precision voltage regulator eight sockets eight voltage to current converters and an interface connector The excitation board is installed above the top jacket The excitation board is powered by 15Vdc This voltage must be regulated but does notneed to be instrumentation quality The precision voltage regulator isanLT1019A which converts the 15Vdc to a precision 10 00Vdc which is used as a reference for the E I converters The LT1019A has a very tight output voltage tolerance and a very low temperature coefficient The EI converters output a constant 1 5mA to the sensors Each sensor has its own E I converter D D D a D ja D kI D D D f d d P d d 7 d Di 7 D by ay by Uh br NA 8 Figure11 Excitation Board Schemati
12. nufactured in a housing designed to facilitate field replacement No special tools are required to access the sensors The ZOC17 electronic pressure scanning module is specifically designed for use in applications where long calibration intervals are required or temperatures can vary greatly The ZOC17 pressure sensors are temperature compensated from 0 to 50 C A constant current source is used for sensor excitation to further improve sensor stability The ZOC17 sensors are arranged in blocks of eight 8 Each block of eight sensors has its own individual calibration valve This valve has four modes of operation 1 Operate 2 Calibrate 3 Purge 4 Isolate The modes are selected by applying control pressures in a predetermined logical order The ZOC17 calibration valve utilizes Normally Px valve logic where the valve defaults to the operate mode when no control pressures are applied The ZOC17 is powered by 15Vdc The module is manufactured in a 16 channel multiplexed model and an 8 channel muxless model The multiplexed version is designed to function best with the HyScan 1000 or HyScan 2000 High Speed Data Acquisition Systems Both versioms may be used in customer designed data acquisition systems or in a stand alone configuration Both versions are available with an optional Isolate Purge valve ZOC17 8Px MUXLESS This module contains eight sensors a calibration valve an excitation board and an interface board The output
13. puts This is especially useful when the ZOC17 modules are used in applications where corrosive gases may be present in the input lines Figure 5 is a table which shows the pressure requirements for each mode of the 7 valves The basic modes are quite simple to set The purge mode must be established in a set order in order to protect the sensors and Calibration modules from damage Isolate Purge Mode Procedure 1 2 3 4 Set the ZOC valve to the Calibrate mode Set the Calibration module s to the Zero Mode If Scanivalve Corp Calibrator modules are being used ina HyScan system Steps 1 and 2 can be implemented by setting the Calibrator Module s to the Cal Zero Mode Set the valve s to the Purge mode by applying CTLPRG pressure Apply the Purge pressure It is also imperative that a procedure be followed when switching from the Purge mode to one of the other modes 1 Shut off the Purge pressure 2 3 Switch the valve s from the Purge mode by removing the CTLPRG pressure Switch the valve s to the desired mode MODE e CTL2 CTLPRG e ME AMME Calibrate Purge Isolate 90 psi NOTE Control Pressures may be increased to 120 psi for operation at 750 psi FS Figure 5 Control Pressure Truth Table 10 SONTRIL PRESSURE TRLTH ALE CTL CTLe TLFRG 7 CALIZRATE v HE CENTRO PREZSUSE REAJIRED FOR M KA CALGRATE WORF VH BARD CH CA SJPMY MUST FIRST
14. ured by Scanivalve Corp The sensors are field replaceable by a technician with minimum tools All sensors are labeled and serialized with a color coded label The sensors plug into sockets on the excitation board from the bottom of the module A guide pin is located on the sensor which must be lined up with a socket on the excitation board Detailed instructions for sensor replacement may be found below and are shown in Figure 23 Figure 24 is a cut away drawing of a typical sensor Figure 25 shows the labels for each standard pressure range Position the module on its side with the Reference tube to the top Position the valve assembly so the tubing is away Remove the circuit board cover and the circuit board Transition Board APC Board or Mux Amp Board Be very careful to avoid Electrostatic problems With the valve assembly positioned as shown in figure 22 Remove the two bottom screws and the reference manifold Remove the sensor jacket assembly from the valve body Remove the sensors to be replaced Install the new sensors by aligning the guide pin with the mating hole on the excitation board The guide pin sockets are set toward surface A Insert the sensor fully so the shoulder of the case is against the shoulder in the sensor jacket Reinstall the sensor jacket reference manifold and bottom screws Do not overtorque the bottom screws Replace the circuit board assembly and cover Perform all applicable operational and leak tests
15. xer Amplifier Board The Multiplexer Amplifier Board is used only in the ZOC17 Multiplexed Module The Multiplexer Amplifier board consists of an input output connector two multiplexers an amplifier and two interface connectors The board is powered by 15Vdc The address lines select a multiplexer and one of eight sensor inputs for input to the Instrumentation Amplifier The Instrumentation Amplifier amplifies the low level sensor outputs to 2 5Vdc which is output through the I O connector The Amplifier output may be set to 5Vdc or 10Vdc as an option Figures 16 17 and 18 show the layout and schematic of the ZOC17 Mux Amp Board t is not recommended that the customer attempt to make repairs to the board The board is a multi layered board utilizing surface mount technology Specialized processes are required in order to insure that the board is not damaged during repair For more information contract the Scanivalve Corporation Customer Service Department 9900000000000000 F 3 Re 0 MG 754438 ee bani pa pa SN E 600 600 o Batt TO A 8066000 0660 wm N Figure 16 ZOC17 Mux Amp Board 21 a E 1 NM e 5 sp ev d 200 BR nit ene d Dis GS np Asra Ameren 1 GB w n m h MU jii pand I T i ma Se AER RTH ARR A K al la Ke Lo w ca tz l EIN 3 ie 3 YEP x n
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