Installation and Operating Instructions
Contents
1. 8 2 TANK FULL N C Normally Closed N O Normally Open LOW LEVEL FAIL SAFE LOW LEVEL FAIL SAFE Gel Switch 1LEFT pon L121 4 5 Te 7 8179 Low Level Fail Safe SISIV S10 91S 19 19 cs I LED OFF HEHHEHE ALARM Level Below Sensing Element TANK EMPTY NORMAL LOW LEVEL FAIL SAFE LOW LEVEL FAIL SAFE Cat Switch 1 LEFT Low Level Fail Safe 4 E LED ON NORMAL Level Above Sensing Element 2 TANK FULL Figure 2 8 Wiring the Relays Operation Section 3 Operation This section describes the operating switches of the Z tron ITI level control Remove the dome lid and use a small screwdriver to set the operating controls 3 1 Setpoint Control There is a single operating point adjustment used to control the level at which the relay operates See Figures 2 8 amp 3 1 This adjustment is an2. Note Any changes to probe length after calibration requires re calibration to ensure proper operation The Need Sometimes your application calls for probe lengths other than the standard 18 inch or longer insertion lengths supplied Shortening the sensing element is quite simple and can be done in the field Lengthening the sensing element however is more difficult because the metal rod typically 304 SS or 316 SS must be welded Before making any Adjustments 1 Read the following instructions thoroughly 2 Remove power 3 Disconnect the electronics 4 Protect electronics from any static discharge 5 Protect electronics from any heat Shortening The bare metal center rod of the sensing element can be shortened with a hacksaw Be careful not to cut either of the two insulators See Figure on this page In applications using conductive or water based materials shortening is not a problem Leave a minimum bare metal center rod length of two 2 inches For dry granular materials such as powder sand corn clinker etc you must leave a minimum bare metal center rod length of eight 8 inches Consult the factory before shortening beyond this point Lengthening To lengthen the sensing element an extension rod can be welded onto the end of the bare metal center rod Make sure that the extension rod is the same metal as the sensing element Disconnect electronics before welding An alternate option is to
3. cceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeneeeneeseneeees UIE ANG A ETE R EA E 2 2 Mounting the Level Control veccisicssstetecncecteeteeeeceenedess 2 3 Mounting Dimensions ceeeeeeeeeeeeeeeeeeeeeeeeeeees 2 4 Power WICKING scaccitiannsiussciondcinanandanaaadntdeaancnanaansveuiuiutonans 2 5 Relay VUGIAG be icnit ccaniaaninsmincnimedeantsacdisietnenineninnbiaxedinsss Section 3 Operation iissasciasciescnsnssosenntendtantennctuntvsieazsdatusnesewesinates 3 1 Setpoint CORE Os ccsstcenenandeasdinrsicusmerecasasnicsaunbenceecseweats 3 2 Time Delay COMO secs acocaccczrzeemmarceurtavauteauasdeeeteustabats 3 3 Time Delay Action a rcsatiguctoncintactuctedenccapuccincaauesesicsetetcest 3 4 Fall SAIE canen a E 3 5 12 9 9 erar EE ee RREA Section 4 CaliDIatiOM weievsscscacicacieecccnctecvenete es cemeieorineeceenentcned 4 1 Calibration in Conducting Material 0eee 4 2 Calibration in Insulating Material Horizontal Mount 4 3 Calibration in Insulating Material Vertical Mount Section 5 Troubleshooting ssssssssnneennnnnnnnnnnnnnnnnnnnnnnnnnnnnn nnn 5 1 DMO ACO geisiisescarceaatcateestonth e E E 5 2 Testing Electronic Unit vacate sendienedetarviareiaiuecuscoussass 5 3 Testing Sensing Element cccccesceeeeeeeeeeeees 5 4 Testing Relay CirCuits ccccccceeeeeeeeseceeeeeeeeeeeeeees 5 5 Possible Problems and Causes ceeeeeeeeeeees 5 6 Factory AGSISIANIC Saiicaiaies vedane
4. Section 2 Installation 2 1 Unpacking Carefully remove the contents of the shipping carton and check each item against the packing list before destroying any packing materials If there is any shortage or damage report it to the factory at 1 800 527 6297 US and Canada or 215 674 1234 International 2 2 Mounting the Level Control The Z tron III Level Control is available with the electronic unit and sensing element as a single integral assembly Extended sensing element lengths and special mountings can be provided to fit specific applications The Z tron III Level Control is designed for industrial applications but it should be mounted in a location as free as possible from vibration corrosive atmospheres or any possibility of mechanical damage For convenience when adjusting place the electronic unit in a reasonably accessible location Ambient temperature should be between 40 F and 145 F 40 C to 63 C It may be mounted either vertically or horizontally See Figures 2 1 and 2 2 Avoid mounting closer than 1 inch to any tank structure Material bridging from structure to sensing element can cause false alarms Close proximity to tank structure also increases the sensing element s standing capacitance When installing flange mounted sensing elements keep mating surfaces and bolts free of paint and corrosion to ensure proper electrical contact with vessel Avoid using excessive amounts of TFE tape when inst
5. necessary If this instrument had been previously adjusted for use in a insulating materials and is now intended for use in a conducting material use a small screwdriver to turn the setpoint adjustment to the full clockwise CW position No other adjustment is necessary 4 2 Calibration in Insulating Material Horizontal Mount NOTICE em Use the following procedure 1 Be sure the material level is well below the sensing element See Figure 4 1 2 Turn the setpoint adjustment to the full counterclockwise CCW position This 20 turn potentiometer does not have a mechanical stop Turn 20 times to assure that you are at the extreme end No damage will occur The LED on indicates that the relay is energized or in normal condition not alarm 3 Turn setpoint adjustment slowly clockwise CW until the relay just operates LED changes state 4 Increase the material level until it is well above the sensing element See Figure 4 2 LED changes state 5 Mentally note the position of the screwdriver 6 Counting the number of turns turn the setpoint adjustment slowly clockwise CW until the relay once again just operates 11 Z0X 2 Series Z tron III Point Level Control 4 2 Calibration in Insulating Material Horizontal Mount Continued NOTICE Ye If less than one turn of the adjustment was observed between the sensing element covered and uncovered the sensor is not generating enough signal C
6. such liability whether as a result of breach of contract warranty tort regardless of the degree of fault or negligence strict liability or otherwise EXPORT CONTROL Buyer shall comply with all export control laws and regulations of the United States and all sales hereunder are subject to those laws and regulations Seller shall not be named as shipper or exporter of record for any goods sold hereunder unless specifically agreed to in writing by Seller At Seller s request Buyer shall furnish Seller with end use and end user information to determine export license applicability Buyer warrants in accordance with U S Export Law that goods sold hereunder shall not be destined for facilities or activities involving nuclear chemical or biological weapons or related missile delivery systems in named prohibited regions or countries GOVERNING LAW Seller intends to comply with all laws applicable to its performance under any order All matters relating to interpretation and effect of these terms and any authorized changes modifications or amendments thereto shall be governed by the laws of the Commonwealth of Pennsylvania No government contract regulations or clauses shall apply to the goods or services this agreement or act to bind Seller unless specifically agreed to by Seller in writing NON WAIVER BY SELLER Waiver by Seller of a breach of any of these terms and conditions shall not be construed as a waiver of any other breach SEVER
7. 20 turn potentiometer and does NOTICE not have a mechanical stop When in High Level Fail meme Safe condition if light LED is ON turn CCW to find SP relay changes state w click amp light turns OFF turn CW if light is initially OFF Opposite is true in Low Level Fail Safe Turning the setpoint adjustment clockwise CW raises the level at which the relay operates Turning the setpoint counterclockwise CCW lowers the level at which the relay operates The LED on indicates that the relay is energized Hold down Screws S AMETE BREXELBROOK ZTRON III SERIAL NUMBER XXX XXXXXX QUT SET enn tt 12 Wa No ie No ame LED L pont 4 2 3 4 5 6 7 8 9 Alarm when Sao 2 NOT illuminated p Setpoint gt 9 QGOAWSCAGDA Adjustment rnnr ENA N AG Ty JA Time Delay Sel Us Z Adjustment Switch 1 LEFT Low Level Fail Safe Y Switch 1 RIGHT High Level Fail Safe Fa Switch 2 LEFT Reverse Time Delay 2 E Switch 2 RIGHT Forward Time Delay Figure 3 1 Z tron III Operating Controls and LED 3 2 Time Delay Control The time delay adjustment is located on top of the instrument as shown in Figure 3 1 It is used to help stop an oscillating relay output due to agitation or waves in the vessel CAUTION THIS adjustment is a 270 turn potentiometer Do not turn it beyond its mechanical stops or dama
8. SET GND L1 L2 NC C NO NC C NO mE POINT 1 8 9 peaY Yj Relay Connections HOT L2 Neutral L1 Power Connections Ground GND 240Vac Figure 2 7 Wiring the 240 VAC Electronic Unit Z0X 2 Series Z tron III Point Level Control 2 5 Relay Wiring Refer to Figure 2 8 for the relay contact wiring The Z tron III relay has double pole double throw DPDT dry contacts The relay serves as a switch and does not provide the power to operate an annunciator or other equipment All relay connections are made to the terminal strip on the electronic unit HIGH LEVEL EN HIGH LEVEL FAIL SAFE K R FAIL SAFE DER Sn andind Switch 1 RIGHT f High Level Fail Safe aa i A 2m ji THILO LILIAN LED ON NORMAL Level Below Sensing Element TANK EMPTY HIGH LEVEL FAIL SAFE HIGH LEVEL FAIL SAFE Cat N C N O N C N O ALARM ALARM Switch 1 RIGHT An 7 2 3 4 5 7 8 9 High Level Fail Safe STOTG SIG 1916 1 19 LED OFF CEECEE ALARM Level Above Sensing Element
9. from hazardous chemicals Material Safety Data Sheets MSDS listing the hazardous materials to which the sensing element has been exposed MUST accompany any repair It is your responsibility to fully disclose all chemicals and decontaminate the sensing element Service department at 1 800 527 6297 US and Canada or 215 674 1234 International To obtain a return authorization RA contact the Please provide the following information Model Number of Return Equipment Serial Number Original Purchase Order Number Process Materials to which the equipment has been exposed MSDS sheets for any hazardous materials Billing Address Shipping Address Purchase Order Number for Repairs Please include a purchase order even if the repair is under warranty If repair is covered under warranty you will not be charged Ship equipment freight prepaid to AMETEK DREXELBROOK 205 KEITH VALLEY ROAD HORSHAM PA 19044 1499 COD shipments will not be accepted 18 Specifications Section 6 Specifications Power Requirements AC Units 95 145 Vac 50 60 Hz 1 Watt 215 265 Vac 50 60 Hz 1 Watt DC Units 24 Vde Unit 19 29 Vdc input 1 Watt Sensitivity 0 3pF or less Operating Point Range 0 80 pF 20 Turn Pot 4 pF per Turn Load Resistance Center to Ground 1500 ohms Center to Shield 750 ohms Shield to Ground 750 ohms Failsafe Field adjustable to either High Level Fail Safe HLFS or Low Level Fail Safe
10. shield terminations must be grounded at the source and destination ports Appendix Appendix B CE Installation Supplement 3 Remote Installations Sensor port must be connected to the transmitter port by one of the following means 401 16 2 Probe Filter Coaxial cable run in conduit Triaxial cable 4 Housings All installations require the sensor and transmitter to be located in a closed shielded metal housing i e typically explosion proof or weatherproof housings meet this requirement 5 Sensor Type Mounting In all non metallic applications the sensor must have a full concentric shield i e needs to be considered when ordering The sensor sensor condulet must be grounded locally either to a metal support structure or an equivalent earth ground D Comments Any deviation from these installation requirements should be reviewed with factory prior to implementation These instructions are essential to insure conformity with specified EC directives Form 440 0001 001 3 1 2006 TERMS AND CONDITIONS OF SALE GENERAL ALL ORDERS ARE SUBJECT TO THE FOLLOWING TERMS AND CONDITIONS ANY ACCEPTANCE OF ANY OFFER OF BUYER FOR ANY GOODS OR SERVICES IS CONDITIONED UPON THESE TERMS AND CONDITIONS AND SELLER OBJECTS TO ANY ADDITIONAL OR DIFFERENT TERMS PROPOSED BY BUYER IN ANY DOCUMENT WHICH SHALL NOT BE BINDING UPON SELLER No salesman or other party is authorized to bind the AMETEK DREXELBROOK Div
11. unattended service A spare electronic chassis is recommended for every 10 units so that in case of a failed unit a critical application will not be delayed while the unit is returned to the factory for repair Use the following troubleshooting procedures to check out the Z tron III Level Control If attempts to locate the difficulty fail notify your local Drexelbrook representative or call the factory direct at 1 800 527 6297 US and Canada or 1 215 674 1234 International 5 2 Testing Electronic Unit It is recommended to begin with Electronic Unit 1 Verify that voltage is reaching unit 2 Change fail safe selector switch Fig 3 1 If LED does not change state along with relays Electronic Unit has failed 3 Remove power from unit loosen hold down screws then lt remove unit Remove Blue screw from top of sensing element amp disconnect Red spade lug connector SAFELY reapply power 4 As in Section 3 1 start with setpoint adjustment in extreme counterclockwise CCW position turn screwdriver clockwise CW until relay just operates 5 Rotate setpoint adjustment back and forth about this point observing travel of screwdriver between relay pull in and relay drop out If properly operating screwdriver should travel less than turn to operate the relay If not Electric Unit has failed 5 3 Testing Sensing Element Be sure to first test Electronic Unit Then gt 1 Re
12. wiring of the relay terminals to an annunciator or other panel device Check the wiring against the relay chart in Figure 2 10 N C N O N C N O ALARM ALARM 4 5 6 7 8 ice Figure 5 2 Relay Circuit Operation OHMMETER co Nog S S O may i i OR 115Vac LAMP S S 3 s aaki et 115Vac R Qu Figure 5 3 Relay Circuit Troubleshooting Z0X 2 Series Z tron III Point Level Control 5 5 Possible Problems and Causes 1 Instrument indicates alarm at all times Instrument never indicates alarm Instrument can t be calibrated Instrument gives a false alarm Instrument operates intermittently Severe coating build upon sensing element HLFS Sensing element not seeing material LLFS due to fill angle Defect in sensing element Loss of power Improper relay wiring Improper calibration Electronic unit malfunction Shorted sensor Water in housing or conduit Severe coating build up on sensing element LLFS Sensing element not seeing material HLFS due to fill angle Improper wiring Improper calibration Electronic unit malfunction Improper wiring Insufficient signal from sensing element Setpoint is beyond the tuning range of t
13. ABILITY AND ENTIRE AGREEMENT If any provision of these terms and conditions is unenforceable the remaining terms shall nonetheless continue in full force and effect This writing together with any other terms and conditions Seller specifically agrees to in writing constitutes the entire terms and conditions of sale between Buyer and Seller and supercedes any and all prior discussions and negotiations on its subject matter AMETEK DREXELBROOK An ISO 9001 Certified Company 205 Keith Valley Road Horsham PA 19044 U S and Canada 1 800 553 9092 24 Hour Service 1 800 527 6297 International 1 215 674 1234 Fax 1 215 674 2731 E mail drexelbrook info ametek com Website www drexelbrook com
14. AMETEK DREXELBROOK Leader in Level Measurement For Assistance Call 1 800 527 6297 tside North Ameri 215 674 1234 Installation and Operating Instructions Series ZOX 2 Z tron III Level Control U S and Canada 24 Hour Service International Fax E mail Website 1 800 553 9092 1 800 527 6297 1 215 674 1234 1 215 674 2731 drexelbrook service ametek com www drexelbrook com AMETEK Drexelbrook makes no warranty of any kind with regard to the material contained in this manual including but not limited to implied warranties or fitness for a particular purpose Drexelbrook shall not be liable for errors contained herein or for incidental or consequential damages in connection with the performance or use of material Copyright 2008 AMETEK Drexelbrook EDO 8 14 105 ZOX 2 LM Issue 12 Series ZOX 2 Z tron IIl Level Control AMETEK DREXELBROOK An ISO 9001 Certified Company 205 Keith Valley Road Horsham PA 19044 U S and Canada 1 800 553 9092 24 Hour Service 1 800 527 6297 International 1 215 674 1234 Fax 1 215 674 2731 E mail drexelbrook info ametek com Website www drexelbrook com Table of Contents Table of Contents Section TS Introgd ction sisicisccteseccessataeswicceccuntentciavansinnsatanscacmaniuns al System Description saa ncercenwecaenceneravexamonemevessmtenacaneicate 1 2 SN sca ec ence aa aa 1 3 Model NUMDET nren Section 2 Installation
15. G Figure 2 2 All Connections Sealed wal and Gaskets In Place AMETEK OREXELBROOK CORRECT Conduit Breather Drain CORRECT Z tron III Level Control Installation Guidelines Introduction 2 3 Mounting Dimensions 41 2 114 2 9716 a 65 N A CCC EMA 4X a ALUMINUM HOUS I NG ASSEMBLY 3 4 NPT WIRE ENTRY 700 0206 SER Aaa EMEN Use a pipe wrench in this area for mounting to the process connection on the vessel 3 4 NPT MOUNTING 7 8 DIA 22 3 8 9 5 Figure 2 3 Mounting Dimensions Integral Z tron III Level Control Z0X 2 Series Z tron III Point Level Control 2 4 Power Wiring AA CAUTION Do not open enclosure cover or make break any electrical connections without first disconnecting electrical power at the source Ensure that area is non hazardous Ensure that wiring electrical fittings and conduit connections conform to ie hae codes for the specific location and hazard evel The Z tron III level control is a general purpose device and is not agency approved for use in hazardous locations If agency approval is required contact your loca
16. LLFS Output DPDT relay closure Contact Rating 5A 120 Vac non inductive 2A 230 Vac non inductive Ambient Temperature 40 F to 145 F 40 C to 60 C Temperature Effect 0 5pF 50 F Line Voltage Effect 0 2pF 20V 120 Vac Stability 0 15pF 6 mo maximum shift Spark Protection 100 Amp Mounting inch NPT standard 19 Z0X 2 Series Z tron III Point Level Control Section 6 Specifications Continued Housing The standard housing meets the following classifications Nema 1 General Purpose Nema 2 Drip Tight Nema 3 Weather Resistant Nema 4 Waterproof Nema 5 Dust Tight Nema 12 Industrial Use If agency approval is required use the Drexelbrook PXL The Point instrument for point level control Time Delay 0 60 seconds Sensing Element Sensing Process Process Element Temperature Wetted Model and Pressure Parts Number 700 206 201 250 F 200 psi 316 SS and Peek Temperature at electronics must not exceed 145 F Approvals UL CUL 508 General Purpose CE 0344 20 Center Rod O D 3 8 inch Appendix Appendix A Shortening or Lengthening the Sensing Element N CAUTION The insulation length of either Flush Sensing Elements or Insulated Sensing Elements can NOT be changed Cable Sensing Elements can only be shortened Instructions are included with each unit NOTE Cote Shield element must NEVER be modified Insulators Center Rod
17. add a pipe coupling and a section of metal pipe after threading the tip of the sensing element In this case the metal pipe need not be identical to the metal of the sensing element Z0X 2 Series Z tron III Point Level Control Appendix B CE Installation Supplement 440 0018 731 aro DATE moos Sef CE Installation Supplement A Purpose To provide additional information that is required to be in compliance with the CE mark of conformity and EMC Directive requirements for systems as defined in EN50082 2 1995 B Definitions 1 T O Sensor Measurement Control Port Any port which provides level measurement control and or DC power 2 I O AC Power Any port which provides AC main power to the instrument 3 Housing Any enclosure where the sensor and transmitter can be located 4 Non metallic applications any application where the sensor is not surrounded by a metallic surface C Installation Specifics 1 T O Sensor Measurement Control Ports Wiring must be twisted pair and run in conduit or an equivalent shielded environment i e shielded braid cable ete The shield terminations must be grounded at the source and destination ports Wiring must be run separate from AC main power and or any signal exceeding 75 volts DC or 50 volts AC 2 F O AC Power Port Wiring must be run either in conduit or an equivalent shielded environment i e shielded braid cable etc The
18. alling threaded sensing elements Install systems with threaded NPT connection via wrench flats on the process connection ONLY The actual mounting location often depends on the placement of nozzles or openings into the vessel Do not mount the instrument through a nozzle which exceeds the Cote Shield element on the sensing element See Figure 2 1 Protect the insulation on the sensing element against cuts and scrapes during installation Figure 2 3 provides typical mounting dimensions Z0X 2 Series Z tron III Point Level Control 2 2 Mounting the Level Control continued Cote shield must extend through nozzle and wall build up by 2 Best Wall build up does not extend mn past first insulator Best No Nozzle qe Wrong Nozzle too long Sl L Y Cote shield too short L Good Eg nozze Long Nozzle a Factory supplied Cote shield extends through nozzle and wall build up Figure 2 1 Z tron III Level Control Mounting Recommendations OOO CONDULET M Packing Gland Hold here when Assembly tightening Do Not Condulet Disturb Hold here to install or remove Sensing Element from Vessel AMETEK DREXELBROOK WRONG eX P J Wee oy WRON
19. e energize when level is low indicating low level upon loss of power N O contacts open N C contacts closed The instrument is supplied in the failsafe mode that is requested when the order is placed If none specified it will be shipped as High Level Failsafe HLFS Selecting Failsafe with Slide Switch 1 High Level Failsafe HLFS Switch 1 is ON or to the RIGHT Low Level Failsafe LLFS Switch 1 is OFF or to the LEFT TICE Before applying power to the instrument be sure that the power wiring is correct See Section 2 3 10 Calibration Section 4 Calibration AA This section contains the calibration information for the Z tron III Level Control CAUTION Do not open enclosure cover or make break any electrical connections without first disconnecting electrical power at the source Ensure that area is non hazardous Ensure that wiring electrical fittings and conduit connections conform to the electrical codes for the specific location The Z tron III level control is a general purpose device and is not agency approved for use in hazardous locations If agency approval is required contact your local AMETEK Drexelbrook representative or call 1 800 553 909 4 1 Calibration in Conducting Material NOTICE ico All Z tron III controls are factory set to switch in water based conducting materials setpoint adjustment is set to full clockwise CW position No calibration adjustment is
20. e the Service department toll free e 1 800 527 6297 US and Canada 1 215 674 1234 International FAX Service Department 215 448 5117 E Mail drexelbrook service ametek com Please provide the following information Instrument Model Number Sensing Element Model Number and Length Original Purchase Order Number Material being measured Temperature Pressure Agitation Brief description of the problem Checkout procedures that have failed 5 7 Field Service Trained field servicemen are available on a time plus expense basis to assist in start ups diagnosing difficult application problems or in plant training of personnel Contact the service department for further details 5 8 Customer Training Periodically AMETEK Drexelbrook instrument training seminars for customers are held at the factory These sessions are guided by Drexelbrook engineers and specialists and provide detailed information on all aspects of level measurement including theory and practice of instrument operation For more information write to AMETEK Drexelbrook Communications Training Group or call 215 674 1234 17 Z0X 2 Series Z tron III Point Level Control 5 9 Equipment Return In order to provide the best service any equipment being returned for repair or credit must be pre approved by the factory In many applications sensing elements are exposed to hazardous materials e OSHA mandates that our employees be informed and protected
21. epairing or issuing credit at Seller s option for any returned goods and only under the following conditions 1 Seller must be promptly notified in writing as soon as possible after the defects have been noted by the Buyer but not later than 1 year from date of invoice from Seller 2 The defective goods are to be returned to the place of manufacture shipping charges prepaid by the Buyer 3 Seller s inspection shall disclose to its satisfaction that the goods were defective in materials or workmanship at the time of shipment 4 Any warranty service consisting of time travel and expenses related to such services performed other than at Seller s factory shall be at Buyer s expense E Repaired Reconditioned Goods As to out of warranty goods which Seller has repaired or reconditioned Seller warrants for a period of sixty 60 days from date of its invoice only new components replaced in the most recent repair reconditioning F Returns and Adjustments No goods may be returned unless authorized in advance by Seller and then only upon such conditions to which Seller may agree Buyer must obtain an RMA Return Material Authorization number from Seller prior to any return shipment and such RMA number must appear on the shipping label and packing slip Buyer shall be responsible for the returned goods until such time as Seller receives the same at its plant and for all charges for packing inspection shipping transportation or insurance as
22. erty rights shall not exceed the purchase price of any goods or services which give rise to the claim SELLER SHALL IN NO EVENT BE LIABLE FOR BUYER S MANUFACTURING COSTS LOST PROFITS LOSS OF USE OF THE GOODS OR SERVICES COST OF CAPITAL COST OF SUBSTITUTE GOODS FACILITIES SERVICES OR REPLACEMENT POWER DOWNTIME COSTS CLAIMS OF BUYER S CUSTOMERS FOR DAMAGES OR OTHER SPECIAL PROXIMATE INCIDENTAL INDIRECT EXEMPLARY OR CONSEQUENTIAL DAMAGES Any action against Seller must be brought within eighteen 18 months after the cause of action accrues These disclaimers and limitations of liability shall apply regardless of the form of action whether in contract tort or otherwise and further shall extend to the benefit of Seller s vendors appointed distributors and other authorized resellers as third party beneficiaries PROHIBITION FOR HAZARDOUS USE Goods sold hereunder generally are not intended for application in and shall not be used by Buyer in the construction or operation of a nuclear installation or in connection with the use or handling of nuclear material or for any hazardous activity or critical application where failure of a single component could cause substantial harm to persons or property unless the goods have been specifically approved for such a use or application Seller disclaims all liability for any loss or damage resulting from such unauthorized use and Buyer shall defend indemnify and hold harmless the Seller against any
23. ge to unit may occur The unit is shipped with the Time Delay set to zero 0 seconds Using a small screwdriver turn the adjustment clockwise to set anywhere from 0 to 60 seconds Z0X 2 Series Z tron III Point Level Control 3 3 Time Delay Action Time delay action describes whether the relay contacts are delayed from going into the alarm state or recovering from an alarm state 3 4 Failsafe 3 5 Start up ee FWD Forward delays the system from coming OUT of alarm REV Reverse delays the system from going INTO alarm The instrument is supplied with the time delay action set in the forward mode position The time delay action may be selected in the field using the slide switch 2 located on the top of the instrument See Figure 3 1 Selecting Time Delay with Slide Switch 2 Forward Acting Switch 2 is ON or to the RIGHT Reverse Acting Switch 2 is OFF or to the LEFT Failsafe describes the level condition which causes the output relay to de energize and determines the condition of the relay upon loss of power or upon the failure of most components The failsafe mode may be selected in the field by changing the position of slide switch 1 located on the top of the instrument See Figure 3 1 High Level Failsafe HLFS means the relay will de energize when level is high indicating high level upon loss of power N O contacts open N C contacts closed Low Level Failsafe LLFS means the relay will d
24. he electronics Electronic unit malfunction Sensor covered with conducting material Improper calibration Loose wiring Electronic unit malfunction Time delay required Intermittent short of sensor Improper calibration Loose wiring Electronic unit malfunction Dielectric k of material is too low 16 a b Need longer Cote Shield Consult factory Need longer insertion length Consult factory See Section 5 3 Check power wiring See Figure 2 4 See Section 2 5 See Section 4 F See Section 5 2 See Section 5 3 Consult factory Need longer Cote Shield Consult factory Need longer insertion length Consult factory See Section 2 See Section 4 See Section 5 2 See Section 2 Need longer insertion length Consult factory Consult factory See Section 5 2 See Section 4 See Section 2 See Section 5 2 i Consult factory See Section 5 3 See Section 4 See Section 2 See Section 5 2 Need high sensitivity unit Consult factory Troubleshooting 5 6 Factory Assistance AMETEK Drexelbrook can answer any questions about The Z tron III series instrument Call Customer Service at 1 800 553 9092 US and Canada or 1 215 674 1234 International If you require assistance and attempts to locate the problem have failed Contact your local Drexelbrook representative Telephon
25. he price of the goods Published weights and dimensions are estimates or approximate only and are not warranted FORCE MAJEURE Seller shall not be responsible for delays in delivery or any failure to deliver due to causes beyond Seller s control including but not limited to the following items acts of God war terrorism mobilization civil commotion riots embargoes domestic or foreign governmental regulations or orders governmental priorities port congestion acts of the Buyer its agents or employees fires floods strikes lockouts and other labor difficulties shortages of or inability to obtain shipping space or transportation inability to secure fuel supplies or power at current prices or on account of shortages thereof or due to limitations imposed by the extent of availability of Seller s normal manufacturing facilities If a delay excused per the above extends for more than ninety 90 days and the parties have not agreed upon a revised basis for continuing providing the goods or services at the end of the delay including adjustment of the price then Buyer upon thirty 30 days prior written notice to Seller may terminate the Order with respect to the unexecuted portion of the goods or services whereupon Buyer shall promptly pay Seller its reasonable termination charges upon submission of Seller s invoices thereof LIMITATION OF LIABILITY Seller s liability for any claim of any kind except infringement of intellectual prop
26. ision of AMETEK Inc hereinafter Seller by any agreement warranty statement promise or understanding not herein expressed and no modifications shall be binding on Seller unless the same are in writing and signed by an executive officer of Seller or his or her duly authorized representative Verbal orders shall not be executed until written notification has been received and acknowledged by Seller QUOTATIONS Written quotations are valid for thirty 30 days unless otherwise stated Verbal quotations expire the same day they are made PRICES All prices and terms are subject to change without notice Buyer requested changes to its order Orders including those affecting the identity scope and delivery of the goods or services must be documented in writing and are subject to Seller s prior approval and adjustments in price schedule and other affected terms and conditions Orders requiring certified test data in excess of commercial requirements are subject to a special charge ORDER ACCEPTANCE All Orders are subject to final approval and acceptance by Seller at its office located at 205 Keith Valley Road Horsham Pennsylvania 19044 TERMS OF PAYMENT Seller s standard terms of payment for Buyers who qualify for credit are net thirty 30 days from date of invoice All invoices must be paid in United States dollars CREDIT Seller reserves the right at any time to revoke any credit extended to Buyer or otherwise modify ter
27. l AMETEK Drexelbrook representative or call 1 800 553 9092 Refer to Figures 2 5 through 2 7 for the appropriate power wiring and use the following procedure to wire the Z tron III level control 1 Ensure that all power to the wiring is off 2 Remove the cover 3 The power connections are made to terminals 1 2 and 3 on the electronic chassis as shown in Figures 2 5 through 2 7 using 12 28 gauge wire The Z tron III level control requires at least 1 watt of power 4 The alarm relays are wired as shown in Figure 2 8 5 Review Checklist a Wiring correct b Input voltage matches instrument label c Proper output connections 6 Replace the cover prior to restoring power if in a hazardous area 7 Turn power on 2 4 Power Wiring continued a Use 12 28 gauge wire Renee Use 12 28 gauge wire 2 gaug i MONGE Use 12 28 gauge wire ER gaug i Installation r ALARM J SERIAL NUMBER XXX 200000 WHEN avae fT ser CNDH L2 NC C NONG C NO mye 9 DELAY PONT 1 2 3 4 5 6 7 8 Relay Connections HOT L2 Neutral L1 Power Connections Ground GND 120Vac Figure 2 5 Wiring the 120 VAC Electronic Unit AMETE BREXELBROOK ZTRON III SERIAL NUMBER XXXXXXXXK 2avac 7 ARelay Connections Power Connections 24Vdc Figure 2 6 Wiring the 24 VDC Electronic Unit SERIAL NUMBER XXX XXXXXX 24ovac T wi
28. l controls and enables the instrument to ignore the effect of buildup or material coating on the sensing element The electronic unit e Provides double pole double throw dry relay contact closure when material reaches a specific point on the sensor The relay contacts may be used to operate alarms solenoid valves or other low power devices Provides a 0 60 second time delay for agitated vessels The 700 series sensing element Is mounted on the tank or in the process Provides a change in radio frequency RF admittance indicating presence or absence of material In a simple capacitance probe type sensing element when the level rises and material covers the probe the capacitance within the circuit between the probe and the medium conductive applications or the probe and the vessel wall insulating applications increases This is due to the dielectric constant k of the material which causes a bridge misbalance The signal is demodulated rectified amplified and the output is increased There are drawbacks however especially when there is coating of the probe An RF Admittance level transmitter is the next generation Although similar to the capacitance concept The Z tron employs a radio frequency signal and adds the Cote Shield circuitry within the Electronics Unit This patented Cote Shield circuitry is designed into Z tron series and enables the instrument to ignore the effect of buildup or material coating
29. metal to metal short circuit Check that the sensing element is not touching any vessel structure An analog ohmmeter has a lower ohms volt rating and provides more current to measure the resistance than a digital ohmmeter Figure 5 1 Checking the Sensing Element Center Probe Outer Shield Housing Ground ANALOG ANALOG OHMMETER OHMMETER To CENTER CONDUCTOR TO OUTER CONDUCTOR GROUNDED Red Lug GROUNDED HOUSING HOUSING PACKING q 5 PACKING gt q 5 GLAND i GLAND aj DO NOT DISTURB DO NOT DISTURB PROBE MEASUREMENT SHIELD MEASUREMENT 14 Troubleshooting 5 4 Testing Relay Circuits Using an ohmmeter perform the following steps to check out the relay circuits 1 The relay circuits consist of double pole double throw relay contacts brought out to terminal strips When the relays are operating properly one pair of contacts will be open with high or low level and one pair will be closed with high or low level Refer to Figures 2 10 and 5 2 2 Relay operation may generally be heard as an audible click when the background noise is not too high Use one of the methods shown in Figure 5 3 to determine if the relay contacts are switching 3 Difficulty in calibration can often be traced to improper
30. move Electric Unit as above but do not apply power 2 Use an analog ohmmeter that is set to the R x 1K ohm scale Measure the resistances between each pair of sensing element connections See Figure 5 1 Center Conductor to Housing ohms Center Conductor to Red Lug ohms Red Lug to Housing ohms 13 Z0X 2 Series Z tron III Point Level Control 5 3 Testing Sensing Element continued 3 A new sensing element that is clean and not coated or wet should look like an open circuit on all sensing element tests If the sensing element is clean and dry and shows resistance between terminals of less than 10K ohms it is possible that moisture has soaked into the packing gland of the sensing element In this case the sensing element may need to be dried until the resistance increases to its maximum value If the process material is conductive you may read some resistance between sensing element connections The lowest permissible resistance values are Center Conductor to Housing 1000 ohms Center Conductor to Red Lug 600 ohms Red Lug to Housing 300 ohms Resistance values lower than this could mean e Extremely conductive coating on probe which is an application problem You may wish to call the factory for suggestions for another technique Probe is damaged and needs to be replaced e Probe is touching vessel A resistance reading of less than 10 ohms on any sensing element terminal is usually due to a
31. ms of payment if Buyer fails to pay for any shipments when due or if in Seller s opinion there is a material adverse change in Buyer s financial condition Seller may at its option cancel any accepted Order if Buyer fails to pay any invoices when due DELIVERY Shipments are F O B place of manufacture Shipping Point and the Buyer shall pay all freight transportation shipping duties fees handling insurance storage demurrage or similar charges from Shipping Point Delivery of goods to common carrier shall constitute delivery and passing of title to the Buyer and all risk of loss or damage in transit shall be borne by Buyer Any claims or losses for damage or destruction after such delivery shall be the responsibility of Buyer Seller reserves the right to make delivery in installments which shall be separately invoiced and paid for when due without regard to subsequent deliveries Delay in delivery of any installment shall not relieve Buyer of its obligation to accept remaining deliveries Acknowledged shipping dates are approximate only and based on prompt receipt of all necessary information from Buyer and Buyer s compliance with terms of payment TAXES All sales excise and similar taxes which Seller may be required to pay or collect with respect to the goods and or services covered by any Order shall be for the account of the Buyer except as otherwise provided by law or unless specifically stated otherwise by Seller in writi
32. ng TERMINATION AND HOLD ORDERS No Order may be terminated by Buyer except upon written request by Buyer and approval by Seller and if said request is approved by Seller under the following conditions 1 Buyer agrees to accept delivery of all of the units completed by Seller through the workday on which Seller receives the written termination request 2 Buyer agrees to pay to Seller all direct costs and expenses applicable to the portion of the Order that is incomplete WARRANTY A Hardware Seller warrants its goods against defects in materials and workmanship under normal use and service for one 1 year from the date of invoice B Software and Firmware Unless otherwise specified Seller warrants for a period of one 1 year from date of invoice that standard software or firmware when used with Seller specified hardware shall perform in accordance with Seller s published specifications Seller makes no representation or warranty expressed or implied that the operation of the software or firmware shall be uninterrupted or error free or that functions contained therein shall meet or satisfy the Buyer s intended use or requirements C Services Seller warrants that services including engineering and custom application whether provided on a fixed cost or time and material basis shall be performed in accordance with generally accepted industry practices D Remedies Seller s liability under this section is restricted to replacing r
33. o defend or control the defense of the suit or proceeding including settlement and 2 Buyer provides all necessary information and assistance for that defense In the event of a charge of infringement Seller s obligation under the agreement shall be fulfilled if Seller at its option and expense either i settles such claim ii procures for Buyer the right to continue using such goods iii replaces or modifies goods to avoid infringement or iv accepts the return of any infringing goods and refunds their purchase price or iv defends against such claim If Buyer furnishes specifications or designs to Seller the obligations of Seller set forth above shall not apply to goods made by Seller using such specifications or designs and Buyer shall defend indemnify and hold Seller harmless against any third party claims for infringement which arise out of Seller s use of specifications or designs furnished by Buyer SOFTWARE LICENSE If goods purchased hereunder include software Software Buyer may use the Software only as part of the goods Buyer may not use copy or transfer any of the Software except as may be permitted under the applicable License Agreement provided with the goods Buyer s right to use copy or transfer the Software shall terminate upon termination of Buyer s right to use the goods PACKAGING WEIGHTS AND DIMENSIONS Buyer specified packing or marking may be subject to additional charges not otherwise included in t
34. on the sensing element The sensing element is mounted in the vessel and provides a change in RF admittance indicating presence or absence of material The Cote Shield element of the sensor prevents the transmission of RF current through the coating on the sensing element The only path to ground available for the RF current is through the material being measured The result is an accurate measurement regardless of the amount of coating on the probe making it by far the most versatile technology good for very wide range conditions from cryogenics to high temperature from vacuum to 10 000 psi pressure and works with all types of materials Z0X 2 Series Z tron III Point Level Control 1 3 Model Number Technology Z RF Admittance Reserved for future use 0 Input 0 120Vac 1 24Vdc 3 230Vac Output 2 Double Pole Double Throw Relay Sensing Element Application Sensing Element Pressure Temperature Wetted Parts 05 General 700 0206 201 14bar 121 C 316SS Purpose 200psi 250 F amp PEEK Cote Shield Length A 10 inch 254mm Note B 3 5 inch 88 9mm Cote Shield should extend through D Nozzle Typical Wall Buildup C 2inch 51mm 2 Jnch s I 6inch 150mm Insertion Length IL A 6 inch 152mm 12 inch 305mm 18 inch 457mm 36 inch 914mm 48 inch 1219mm 60 inch 1524mm 72 inch 1829mm Other NINMOOW Spare Parts 120VAC Module 385 50 11 240VAC Module 385 50 12 24VAD Module 385 50 13 Installation
35. onsult the factory for further options 7 Turn the adjustment back counterclockwise CCW one half the number of turns that were counted 8 Record number of turns and save for future calibration reference Calibration is now complete 4 3 Calibration in Insulating Material Vertical Mount NOTICE em NOTICE mS This 20 turn potentiometer does not have a mechanical stop Turn 20 times to assure that you are at the extreme end No damage will occur The LED on indicates that the relay is energized or in normal condition not alarm 1 Set the level to a point on the active section of the sensing element where control is desired 3 inches 76 2 mm of coverage minimum See Figure 4 3 2 Start from the full counterclockwise CCW position Turn the setpoint adjustment clockwise CW until the relay just operates LED changes states If dielectric constant or conductivity of material changes point of operation may change Consult factory Calibration is now complete p DESIRED CONTROL H T 2 Figure 4 1 Figure 4 2 Figure 4 3 Level Below Horizontal Level Above Horizontal Level Covering Vertical Sensing Element Sensing Element Sensing Element 12 Troubleshooting Section 5 Troubleshooting 5 1 Introduction The Z tron III Level Control is a solid state device with no moving parts other than its relays and requires no maintenance or adjustments The units are designed to give years of
36. sncrcraienrnencrcceamimaaincataicael 5 7 Field Service acts sess couseduaxmnewrnedurscusucenenamamarsmnmendnconawaes 5 8 Customer Training 5 seca cnccecesenecedeencncnycecastcerecsesnencncnicnas 5 9 Equipment ReturNsssec sa Section 6 Specifications ceceeeeceeeeeseeeeeeeeeseseesseeseeees Appendix A Shortening or Lengthening the Sensing Element Appendix B CE Installation Supplement cccceeeceeees Section 1 Section 1 1 1 Figure 1 1 Capacitance Probe Insulating Media 1 2 Technology IDENTICAL VOLTAGE WAVE FORMS G Uses RF signal to overcome lt aes limitations INSULATORS f Of fel Capacitance NO CURRENT FLOW HERE AMPLIFIER CURRENT FLOWS HERE BUT NOT MEASURED CURRENT FLOWS THRU LEVEL EQUIVALENT CIRCUIT Figure 1 2 RF Admittance Probe with Cote Shield Introduction Introduction These instructions are for the AMETEK Drexelbrook Z tron III Series Point Level Control The label on top of the electronic unit identifies the model number of the Z tron IIT level control If the model number on the electronic unit is a 402 3000 the instructions are included in the 502 3000 LM Instruction Manual Both of these manuals can be downloaded from our resource library at www Drexelbrook com System Description Cote Shield action is designed into all Z tron III leve
37. sociated with returned goods In the event that credit for returned goods is granted it shall be at the lesser of the then current prices or the original purchase price Claims for shortage or incorrect material must be made within five 5 days after receipt of shipment ALL OTHER WARRANTIES FOR ANY OF SELLER S GOODS OR SERVICES WHETHER ORAL WRITTEN EXPRESS IMPLIED STATUTORY OR OTHERWISE INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR PURPOSE ARE EXCLUDED AMETEK DREXELBROOK INTELLECTUAL PROPERTY Seller s sale of goods or provision of related documentation or other materials to Buyer shall not transfer any intellectual property rights to Buyer unless Seller specifically agrees to do so in writing Seller shall retain ownership of all applicable patents trademarks copyrights and other intellectual property rights Buyer shall not use copy or transfer any such items in violation of Seller s intellectual property rights or applicable law or for any purposes other than that for which the items were furnished Seller shall defend any lawsuit brought against the Buyer based on a claim that the design or construction of the goods sold hereunder by Seller infringe any United States or Canadian Patent Copyright or Mask Work Registration provided that Buyer promptly notifies Seller of such claim in writing and further provided that at Seller s expense 1 Buyer gives Seller the sole right t
Download Pdf Manuals
Related Search