Hastings CVT-14/24 Скачать руководство пользователя страница 11 | Manualshive

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page 11

2.5 Vacuum Gauge Tube

All Hastings gauge tubes are shipped with a protective cap or cover at the evacuation port to

reduce contamination and prevent physical damage to the internal thermopile elements. Once the

protective cap or cover is removed, a tube can be installed in any convenient position in the

vacuum system without adversely affecting calibration or performance. The recommended

orientation is with the tube vertical and its stem down. This will aide in preventing condensable

materials from remaining in the gauge tube.
Hastings instruments also offers a wide variety of installation accessories for use with your vacuum

gauge tube. Please consult the Hastings Ordering and Dimension Guide or contact your factory

representative for information on these products.

WARNING: Compression seal fittings Quick-Connects are not for use in systems

where the tube can be pressurized above atmosphere.

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Содержание CVT-14/24

Страница 1: ...page 1 VT CVT SERIES VACUUM GAUGES and CONTROLLERS HASTINGS INSTRUCTION MANUAL ...

Страница 2: ...mportant 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 RevisionA Document Number 146 0497 April 1997 Revision B Doc...

Страница 3: ...1 Meter Mechanical Zero 13 3 2 AC Input Power 13 3 3 Pressure Measurement 13 3 4 Controller Set Points 13 3 5 OperationAnd Performance Check 13 3 6 GaugeTube Operating Principle 14 3 7 Calibration 14 3 7 1 Calibration Using AVacuum System 14 3 7 2 Calibration UsingA Hastings ReferenceTube 14 4 0 WARRANTY and REPAIR 17 4 1 Warranty Repair 17 4 2 Non warranty Repair 17 Hastings Instruments reserves ...

Страница 4: ...page 4 ...

Страница 5: ... but sensitive gauge tubes which are designed specifically for each of the three available pressure ranges consult Hastings Ordering and Dimension guide 1 2 Specifications Pressure range VT 4 series CVT 14 24 0 20Torr or 0 20 mbar VT 5 CVT 15 25 0 100 mTorr or 0 0 1 mbar VT 6series CVT 16 26 0 1000 mTorr or 0 1 mbar Input power 115 or 230 VAC 50 60 Hz Output signal 0 1VDC analog non linear Control...

Страница 6: ...page 6 ...

Страница 7: ...es units to be used when considering mounting locations Use dimensional drawing figure 2 3 to cut out and drill the gauge controller mounting panel Install gauge or controller onto panel using hardware supplied with your unit SECTION 2 Installation figure 2 1 VT series outline dimensions figure 2 2 CVT series outline dimensions ...

Страница 8: ...ctions that will allow the user to display pressure from one or more selected tubes No special installation is necessary simply connect the power cord and the gauge tube cables Note All of the gauge tube cables on either a 2 position or a 5 position unit must be equal in length Mixing cable lengths on a particular unit will produce a calibration error due to the different resistances of the cables...

Страница 9: ...als T erminal Function Description 3 Gauge tube cable HTDT C blk wire 4 AC power cable 115VAC blk wire 5 Gauge tube cable HTDT C wht wire 6 Gauge tube cable COMPT C green wire 7 Analog output negative analog output terminal 8 Analog output positive analog output terminal 9 AC power cable LoVAC wht wire 10 AC power cable 230VAC blk wire 13 COM chassis ground 14 COM AC power ground green yellow wire...

Страница 10: ...auge tube cable COMPT C green wire 7 Analog output negative analog output terminal 8 Analog output positive analog output terminal 9 AC power cable LoVAC whtWIRE 10 AC power cable 230VAC blkWIRE 11 Spare no connection 12 Lo set relay COM relay contact 13 COM chassis ground 14 COM AC power ground green yellow wire 15 Hi set relay N C relay contact 16 Hi set relay N O relay contact 17 Hi set relay C...

Страница 11: ... calibration or performance The recommended orientation is with the tube vertical and its stem down This will aide in preventing condensable materials from remaining in the gauge tube Hastings instruments also offers a wide variety of installation accessories for use with your vacuum gauge tube Please consult the Hastings Ordering and Dimension Guide or contact your factory representative for info...

Страница 12: ...page 12 ...

Страница 13: ...b controls the HI Set pressure Relay K2 Control logic determines that a relay will energize when the indicated pressure is lower than the set pressure and de energize when the indicated pressure is higher than the set pressure or if their is a loss of AC power to the unit 3 5 Operation And Performance Check All Hastings vacuum gauges controllers and tubes have been carefully calibrated and checked...

Страница 14: ...e less than 1 0 x10 2 Torr When using DV 5 or DV 6 type gauge tubes system pressure must be less than 1 0 x 10 5 Torr Adjust the gauge CAL adjustment figure 3 2 until the meter pointer indicates zero left on the dial face 3 6 GaugeTube Operating Principle Operation of the Hastings gauge tube is based on a low voltage AC bridge that heats a noble metal thermopile A change in pressure in the gauge t...

Страница 15: ...ollowing table specifies the Hastings reference tube to be used in the calibration of a gauge based upon the type of gauge tube being used Reference tube Gauge tube DB 16D DV 4 DB 18 DV 5 DB 20 DV 6 Adjust the gauge CAL control figure 3 2 until the meter pointer indicates the pressure specified on the decal of the reference tube in use figure 3 2 VT CVT calibration points ...

Страница 16: ...page 16 Maintainance and Repair 4 3 ...

Страница 17: ...aith that it is defective in materials or workmanship during the warranty period Defective instruments should be returned to Hastings Instruments together with a written statement of the problem and a Return MaterialAuthorization RMA number Please consult the factory for your RMA number before returning any product for repair 4 2 Non Warranty Repair Policy Any product returned for a non warranty r...

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