Teledyne Marine Instruments 760 PLUS User's Manual
Contents
1. ud LI U LI r U 7 2 Rear Panel Decal is to be black ink printed on silver compucal with adhesive on the back Manual 147 082010_HPM 760 Plus Vacuum Gauge Page 15 of 16 CUT OUT 7 3 Mounting Cut out panel as shown in the diagram below 7 4 Panel Mounting 1 Slide power supply into panel from the top 2 Attach brackets to the side of the power supply 3 Tighten screws against panel Manual 147 082010_HPM 760 Plus Vacuum Gauge Page 16 of 162. Fig 3 2 Manual 147 082010_HPM 760 Plus Vacuum Gauge Page 8 of 16 3 2 Piezo Transducer Input Power The 760s piezo transducer operates with a DC input from 15 to 30 volts Use the 4 pin female connector supplied and makes necessary connections as outlined See illustration in Section 2 of this manual 3 3 Piezo Transducer Output Signal The 760s piezo transducer provides either a linear DC voltage output with pressure or a linear DC current output with pressure The type of output is determined by the instrument option specified A brief description of the option pressure range and output signal is listed below OPTION No PRESSURE RANGE SIGNAL OUT Torr see note 01 0 1000 0 5 VDC 02 0 1000 0 10 VDC 03 0 1000 2 10 mA 04 0 1000 4 20 mA 05 0 1000 0 5 or 10 VDC w LCD Digital Display NOTE The 760 Plus power supply display or the 760s option 05 provide a direct pressure readout in Torr units 3 4 Power Supply Display Input Power The 760 Plus power supply display must be connected to a source of AC voltage either 120 or 240 V before attempting to program or setup the unit for operation with the Hastings 760S piezo vacuum transducer see Section 2 3 for cable description 3 5 THPS 760 Power Supply Physical Layout 3 5 1 Front Panel Refer to page 19 7 1 1 for physical layout Digital Display The THPS 760 has a 4 1 2 digit display that displays continuous readout Set Point Adjustment Pots Two Set Poi
3. September 2005 Revision J Document Number 147 102007 October 2007 Revision K Document Number 147 082010 August 2010 Visit www teledyne hi com for WEEE disposal guidance Hastings Instruments reserves the right to change or modify the design of its equipment without any obligation to provide notification of change or intent to change Manual 147 082010_HPM 760 Plus Vacuum Gauge Page 2 of 16 Table of Contents 1 GENERAL INFORMA TION wisesssessscsssestocssvecsdecssescossevecsesvsbecsossecossocnsiessenbasessssenseetescasecdessosestecsobevsasssbesteossbacioossbacsosseverses 4 1 1 A N Sart eos 4 1 2 SPECIFICATIONS 322 E 5 2 INSTALLATION sissccscssisetscccsacccotsccassscseacssessisssscncedcesstecssnectssavelsossencsdceessssesvesdedensessbsesececsduvscesssacessseteacoseteesosbanc aceestes 6 24 RECEIVING INSPECTION 6 2 2 PIEZO TRANSDUCER 7605 INSTALLATION ccccsssececsesceceessececseseececsescecsesaececseaaeceseeeeecessaeeeceesaeeecseseecessaeseeseaaeees 6 2 3 POWER SUPPLY DISPLAY INSTALLATION neet erene ea Eer E EErEE E r EOS EEE eE EE EE RE OE EEr E a 7 2 3 1 Power Supp
4. TL AR 316 stainless steel Power Supply Display 161 15 0 05 of reading 1 digit Temperature coefficient Pee eae bd Sah ae oa Geek eR lt 80 ppm C Trapt POW euu 120 or 240 volts 50 ma 50 60 hz 24 no regulated 30 mA Tinpurtsigiial 0 10 VDC nominal Rela yG 2 240 VAC form 1 9 3 8 4 6 Accuracy 0 25 FS calibration based 0 15 standard Manual 147 082010_HPM 760 Plus Vacuum Gauge Page 5 of 16 2 Installation This section contains the necessary instructions to assist in placing the HPM 760 Plus digital vacuum gauge into operation as quickly and easily as possible Please read the following thoroughly before attempting to install or use the instrument 2 1 Receiving Inspection Carefully unpack the Hastings product s Inspect for any obvious signs of damage to the shipment Immediately advise the carrier who delivered the shipment if any damage is suspected Check each component shipped with the packing list Insure that all parts listed are present Other equi
5. S e 1 8 DIN case panel mounting Manual 147 082010_HPM 760 Plus Vacuum Gauge Page 4 of 16 1 2 Specifications Piezo Vacuum Transducer 760s 0 25 FS 760 Torr Operate Pressures 1000 Torr nominal Maximum ver 8 2300 Torr 45 psi Operating temperature ez 0 509 15 30 VDC Input POW Eigen es 15 mA 24 VDC no load OuUtpUE IM pe dan Ce 1k ohm minimum Output signal options 2 teeta tees attendee 0 1000 Torr 0 5 VDC Stier seit svelte NL ede Ha ee ee 0 1000 Torr 0 10 VDC 03 ti dete 0 1000 Torr 2 10 mA Options04 aa eels ee S 0 1000 Torr 4 20 mA 05 0 1000 Torr 5 10 VDC w digital display Leis edna ats uneasy 1 5 1 5 2 875 Wettedimaterial S
6. Increase system pressure to atmosphere and adjust span trimpot until the power supply display indicates the known local atmospheric pressure 000 1 Torr Repeat steps 2 through 4 if necessary 4 2 Hastings 760s Option 5 Transducer Zero and Span Adjustment 1 Install the transducer and apply operating power Wait a minimum of 15 minutes before proceeding Evacuate the system to a pressure less than 0 01 Torr 1 00E 02 Torr Adjust transducer zero trimpot Fig 2 1 until display indicates 000 001 Torr Increase system pressure to atmosphere and adjust span trimpot Fig 2 1 until display indicates the known local atmospheric pressure 001 Torr Repeat steps 2 through 4 if necessary Manual 147 082010_HPM 760 Plus Vacuum Gauge Page 12 of 16 5 Maintenance 5 1 Power Supply Display Authorized Maintenance During normal operation and excluding the calibration procedure Hastings 760 Plus power supply display does not require maintenance In the event a Hastings power supply display fails or is otherwise damaged it should be returned to the manufacturer factory for repair or replacement after first obtaining the necessary returned material authorization RMA number 5 2 Piezo Transducer Authorized Maintenance During normal operation and excluding the calibration procedure Hastings piezo vacuum transducers 760S do not require maintenance or adjustment In the event a transducer fails or is otherwise damaged it shoul
7. SP2 relay SPDT contacts max 2amps 250vac Either relay will energize when input pressure is less than desired set point Grounding Considerations If the THPS 760 is being used in an area with excessive electromagnetic interference EMI the power supply may need to be grounded This is accomplished by attaching one end of a grounding wire to the Thumbscrew located at the rear of the THPS 760 The other end should be connected to the 760 sensor ground A shielded cable may be utilized 3 6 Power Supply Relay Set Point Adjustment The THPS 760 Power Supply has two separate set points with corresponding LED Indicators and relay contact outputs Each Relay has option of either normally open or Normally Closed contacts 1 Ensure 120vac 220vac is supplied to HPS 760 Power Supply No switching necessary 2 SP1 setting Depress SP1 set point switch and hold a Turn the SP1 Potentiometer until the desired set point is Displayed on digital display b Release switch 3 SP2 setting Depress SP2 set point switch and hold a Turn the SP2 Set Point Potentiometer until the desired set point is Displayed on digital display b Release switch 4 With both set point push buttons switches released the digital display will indicate input from 760 sensor SP1 SP2 set point relays will energize when the input is less than the SP1 SP2 set point Depressing both set point switches at the same time will result in an erroneo
8. mounting hardware supplied 2 3 1 Power Supply Display Cables and Wiring Three cables provide all wire connections for the Hastings 760 Plus and are shown below 760 Plus Interconnect Cable To power supply display To Piezo Transducer 760s Interconnect cable 4 cond 20 A W G 8 ft length standard Power Supply Display Power Cable To power supply display Fig 2 2 AC power cable 2 cond w polarized plug 18 A W G 8 ft length standard Manual 147 082010_HPM 760 Plus Vacuum Gauge Page 7 of 16 3 Operating Information This section contains information on operating the PIEZO Resistive Transducer in any of its various configurations Refer to the appropriate section for information on the mode in use 3 1 General The piezoresistive transducer is shown schematically in figure 3 1 Basically the membrane contains an ion implanted resistive element that is part of a Wheatstone bridge circuit shown in figure 3 2 The underside of the transducer has been evacuated and sealed to produce a deflection of the membrane the magnitude of which is a function of the differential pressure AP across the membrane The resistance of the membrane element changes with that AP and thus changes the bridge output IMPLANTED SILICON PIEZO RESISTOR DIOXIDE a DEPLETION REGION SILICON CHIP Fig 3 1 RAR R AR 2 ss x R AR R AR V N OUT
9. NC Bivisccsiscisessssssiccssostscssesssscsssescanssescsscteecsocsscastbecssossvactsossbccdssesoassssstbesssovssesdsessssesdeasosesseessssebecsossssacsoestes 13 5 1 POWER SUPPLY DISPLAY AUTHORIZED MAINTENANCE 13 5 2 PIEZO TRANSDUCER AUTHORIZED MAINTENANCE 13 6 2520 cooseveceossetecdbsessessoubinessoncsedesteesoobsbecsesosscl nsesssddesdeteossevectebesdacssbebioossbecs 14 6 1 WARRANTY REPAIR 14 6 2 REPAIR POLICY 0 400 14 7 DIAGRAMS AND DRAWINGS 15 cciscccssssssssscssscesescscosensseseeosossevtencsocesesssdectesesucseesecbscesdesseccesbecasdoesiecesesessncsesiesecoeuses 15 7 1 FRONT PANU pics E E E E E A E EEEE 15 7 2 ENE 15 7 3 16 7 4 PANEL MOUNTING ede E 16 Manual 147 082010_HPM 760 Plus Vacuum Gauge Page 3 of 16 1 General Information This manual contains technical and general information relating to the installation operation and calibration of the Hastings 760 Plus vacuum gauge whi
10. TELEDYNE HASTINGS INSTRUMENTS INSTRUCTION MANUAL 760 PLUS VACUUM GAUGE TELEDYNE HASTINGS TELEDYNE HASTINGS INSTRUMENTS ISO 9001 A Teledyne Technologies Company CERTIFIED Manual Print History The print history shown below lists the printing dates of all revisions and addenda created for this manual The revision level letter increases alphabetically as the manual undergoes subsequent updates Addenda which are released between revisions contain important change information that the user should incorporate immediately into the manual Addenda are numbered sequentially When a new revision is created all addenda associated with the previous revision of the manual are incorporated into the new revision of the manual Each new revision includes a revised copy of this print history page Revision A Document Number 147 0497 January 1998 Revision Document Number 147 012000 2 022 1000000000000000000002 2 2000 Revision C Document Number 147 082002 August 2002 Revision D Document Number 147 092002 September 2002 Revision E Document Number 147 112003 0090 November 2003 Revision F Document Number 147 022004 January 2004 Revision G Document Number 147 082005 2 0 August 2005 Revision H Document Number 147 092005
11. ch is comprised of a piezo vacuum transducer 760s and power supply display The 760s piezoresistive type transducer has one side of its diaphragm evacuated to a low reference pressure then sealed to produce an absolute pressure signal output This output signal is linear proportional to the applied pressure and is independent of gas composition The power supply display provides 24 VDC excitation power for the 760s transducer and a four digit dual setpoint meter relay for monitoring measurement and control applications For best performance this instrument should be operated with the appropriate Hastings accessory items Attempting to use a Hastings product with other manufacturers equipment may result in damage to all equipment 1 1 Features Piezo Vacuum Transducer 760s Linear voltage or current output Absolute pressure measurement independent of gas composition e Zero and span adjustable e Compact size 1 5 x 1 5 x 3 e 0 1 1000 Torr range e Stand alone operation with 15 30 VDC input e All wetted materials 316 stainless steel e Optional 3 1 2 digit LCD display Power Supply Display Excitation output for use with Hastings 7605 piezo vacuum transducer 4 1 2 digit high efficiency red LED display e Two control relays SPDT 2 A max 240 VAC max Relay set point set manually from front panel e 120 240 VAC input power no hardware settings required Front panel SP1 SP2 annunciators LED
12. d be returned to the manufacturer factory for repair or replacement after first obtaining the necessary returned material authorization RMA number Manual 147 082010_HPM 760 Plus Vacuum Gauge Page 13 of 16 6 WARRANTY 6 1 Warranty Repair Policy Hastings Instruments warrants this product for a period of one year from the date of shipment to be free from defects in material and workmanship This warranty does not apply to defects or failures resulting from unauthorized modification misuse or mishandling of the product This warranty does not apply to batteries or other expendable parts or to damage caused by leaking batteries or any similar occurrence This warranty does not apply to any instrument which has had a tamper seal removed or broken This warranty is in lieu of all other warranties expressed or implied including any implied warranty as to fitness for a particular use Hastings Instruments shall not be liable for any indirect or consequential damages Hastings Instruments will at its option repair replace or refund the selling price of the product if Hastings Instruments determines in good faith that it is defective in materials or workmanship during the warranty period Defective instruments should be returned to Hastings Instruments shipment prepaid together with a written statement of the problem and a Return Material Authorization RMA number Please consult the factory for your RMA number before returning any pro
13. duct for repair Collect freight will not be accepted 6 2 Non Warranty Repair Policy Any product returned for a non warranty repair must be accompanied by a purchase order RMA form and a written description of the problem with the instrument If the repair cost is higher you will be contacted for authorization before we proceed with any repairs If you then choose not to have the product repaired a minimum will be charged to cover the processing and inspection Please consult the factory for your RMA number before returning any product repair TELEDYNE HASTINGS INSTRUMENTS 804 NEWCOMBE AVENUE HAMPTON VIRGINIA 23669 U S A ATTENTION REPAIR DEPARTMENT TELEPHONE 757 723 6531 TOLL FREE 1 800 950 2468 FAX 757 723 3925 E MAIL hastings_instruments teledyne com INTERNET http www teledyne hi com Repair Forms may be obtained from the Information Request section of the Hastings Instruments web site Manual 147 082010_HPM 760 Plus Vacuum Gauge Page 14 of 16 7 Diagrams and Drawings 7 1 Front Panel The THPS 760 has a 4 1 2 digit display that displays continuous readout gt gt 2 2690 5 Se Clete ze z 2 2 gt 2 gt 2 05 5 NNN gt 2 Q 9 lt nH HHH 2 20 U U LI
14. ly Display Cables and 7 3 OPERATING INFORMATION 8 3 1 GENERAL 0 T E EEE RENAE BS 8 3 2 PIEZO TRANSDUCER INPUT 040101 9 3 3 7 5 2 A 9 3 4 POWER SUPPLY DISPLAY INPUT POWER 9 3 5 THPS 760 POWER SUPPLY PHYSICAL LAYOUT 9 3 5 1 Front Panel Refer to page 19 7 1 1 for physical 9 RCT EOE PE 10 3 6 POWER SUPPLY RELAY SET POINT ADJUSTMENT 00400 0011 10 3 7 PRESSURE MEASUREMENTS 11 4 12 4 1 HASTINGS 760 PLUS PIEZO TRANSDUCER ZERO AND SPAN ADJUSTMENT 4 12 4 2 HASTINGS 7605 OPTION 5 TRANSDUCER ZERO AND SPAN ADJUSTMENT 12 5 MAINTENA
15. nt Adjustment Pots are accessible on the panel and are used to set the desired set points SP1 SP2 Refer to SET POINT ADJUSTMENTS and figure 1 for specific instructions pertaining to setting the set points KNOBS ON THE SET POINT ADJUSTMENT POTS ARE PERMANENTLY INSTALLED AND CAN NOT BE REMOVED REMOVING THEM COULD CAUSE PERMANENT DAMAGE TO THE SET POINT POTS Set Point Pushbuttons There are two set point pushbuttons SP1 AND SP2 accessible on the front panel When depressed the setpoint value is displayed on the LED readout SET POINT LED s The two LED indicators SP1 and SP2 will illuminate when the input pressure is less than desired SP1 SP2 set point The LED s indicate the corresponding relay is activated energized Manual 147 082010_HPM 760 Plus Vacuum Gauge Page 9 of 16 3 5 2 Rear Panel Refer to page 19 7 1 2 for rear view and specific pin outs and connector arrangements AC Input Connector J1 Universal input power 110vac to 220 VAC No hardware settings required J3 Input Output Connector Sensor Input pin 9 Input signal from 7605 sensor Sensor Ground pin 10 Input ground Signal output pin 11 Auxiliary signal output 0 to 10vdc Signal output return pin 12 Auxiliary signal return 24vdc Output pin 7 24 Auxiliary output 24vdc Return pin 8 24vcd Auxiliary return SP1 relay contacts pins 1 2 3 SP1 relay SPDT contacts max 2 amps 250vac SP2 relay contacts pins 4 5 6
16. pment or accessories will be listed separately 2 2 Piezo Transducer 760s Installation Figure 2 1 shows the Hastings piezo vacuum transducer A standard 1 8 NPT male stem and evacuation port is provided for system connection VCR and KF stem terminations are also available When installing transducers with threaded stem apply an approved vacuum sealant to the stem threads of the transducer Hand thread transducer into vacuum system until joint is finger tight Tighten transducer module completely using a wrench on the hexagonal portion of the stem Do not grip instrument case to tighten this will result in permanent damage to transducer assembly When the 760s is purchased independently of the power supply display a connector is provided so that the transducer can be connected as detailed in the figure below SPAN Adjustment Electronics _ ZERO Module Adjustment Connector 0 Stem 4 NPT Shown Pin 1 VCR and KF also available TRANSDUCER PINOUT PIN SIGNAL OUTPUT COM PIN SIGNAL OUTPUT POS PIN 15 30 VDC INPUT COM PIN A 15 30 VDC INPUT POS Manual 147 082010_HPM 760 Plus Vacuum Gauge Page 6 of 16 2 3 Power Supply Display Installation Cut a panel opening to the following dimensions 3 62 92mm wide 1 77 45mm tall Insert the power supply display through the panel cutout and secure in place using
17. s of pressure The Hastings 760 Plus power supply display is calibrated at the factory prior to shipment and does not require adjustment when installed The user should not attempt to calibrate the Hastings 760 Plus power supply display however if the display indication is incorrect calibrate the Hastings piezo transducer by adjusting the ZERO and SPAN controls as outlined in this manual The Hastings transducer can be adjusted by performing the following procedure If you intend to use this procedure you will need a vacuum system capable of achieving base pressures below 1 00E 02 Torr and a power supply display which is calibrated for the option in use 1000 0 50 2 100 0 05 INDICATED gt IT OUTPUT PRESSURE 27 VOLTS TORR 10 0 Erza 0 05 1 0 a 0 005 0 10 1 00 10 00 100 00 1000 00 PRESSURE TORR Manual 147 082010_HPM 760 Plus Vacuum Gauge Page 11 of 16 4 Calibration 4 1 Hastings 760 Plus Piezo Transducer Zero and Span Adjustment 1 Install the transducer and power supply display then apply operating power Wait a mini mum of 15 minutes before proceeding Evacuate system to a pressure less than 0 010 Torr 1 00E 02 Torr Adjust transducer zero trimpot Fig 2 1 until the power supply display indicates 000 0 000 1 Torr
18. us reading but will not affect the proper operation of the unit Manual 147 082010_HPM 760 Plus Vacuum Gauge Page 10 of 16 Auxiliary Relay Contacts The THPS 760 Power Supply has SP1 and SP2 relays for various external switching monitoring applications Each relay has a single set of Form C contacts Choice of normally open or normally closed contacts The relays will energize pick up when the input is less than the preset set points as adjusted in the Set Point Adjustment procedures above The set point LED Indicators SP1 or SP2 will illuminate indicating that SP1 or SP2 relay is energized The choice of the normally open or normally closed contacts will depend on the desired switching function of the particular application Each set of contacts is capable of switching up to 2 amps max 250 3 7 Pressure Measurements The 760 Plus piezo transducers are shipped from the factory fully calibrated thus can provide immediate and accurate pressure measurements as soon as the installation outlined in Section 2 2 has been completed If using a 760 Plus power supply display the pressure can be read directly in Torr units When not using a 760 Plus power supply display the linear output voltage or current depending on option must be interpolated to obtain absolute pressure measurements Figure 3 3 on the following page of this manual shows a typical signal output vs pressure curve Note the excellent linearity over 4 decade
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