Teledyne HVC-282 User Manual

INSTRUCTION

MANUAL

MODEL HVCMODEL HVC

MODEL HVC

MODEL HVCMODEL HVC

CUUM CONTROLLERCUUM CONTROLLER

CUUM CONTROLLER

CUUM CONTROLLERCUUM CONTROLLER

-282-282

-282

-282-282

Manual Print HistoryManual Print History

Manual Print History

Manual Print HistoryManual 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 betw een 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 129-051994) ................................................................ May 1994

Revision B (Document Number 129-082002) .............................................................August 2002

Refer to accompanying documents for electrical connections. designed for class II installations.

CAUTION

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.

TABLE OF CONTENTS

SECTION 1.0 GENERAL INFORMATION........................................................................................... 5

1.1 Descripion.........................................................................................................................5

1.2 Operating Principle ..................................................................................................................................... 5

1.3 Specifications ............................................................................................................................................ 5

1.4 Accessories................................................................................................................................................ 6

SECTION 2.0 GAUGE TUBES AND CABLES .......................................................................................... 7

2.1 Gauge Tubes............................................................................................................................................... 7

2.2 Gauge Tube Cables ..................................................................................................................................... 7

SECTION 3.0 INST ALLA TION PROCEDURE ........................................................................................... 8

3.1 Panel Mounting .......................................................................................................................................... 8

3.2 Gauge Tube Installation.............................................................................................................................. 8

SECTION 4.0 OPERA TION....................................................................................................................... 9

SECTION 5.0 CALIBRA TION AND TROUBLESHOOTING GUIDE ............................................................ 10

5.1 Checking of Tube ........................................................................................................................................ 10

5.2 Calibration of Gauge and Gauge Tube........................................................................................................ 10

5.3 Check Against Primary Standard ................................................................................................................ 11

SECTION 6.0 NOTES ON VACUUM MEASUREMENT.............................................................................. 12

6.1 Effects of Condensable Vapors ................................................................................................................... 12

6.2 Outgassing ................................................................................................................................................. 12

6.3 Effect of Thermal Conductivity ..................................................................................................................... 12

6.4 Effects of System Conductance .................................................................................................................. 12

SECTION 7.0 SERVICE INFORMA TION..................................................................................................... 13

7.1 Warranty R epair P olicy ................................................................................................................................ 13

7.2 Non-Warranty R epair P olicy......................................................................................................................... 13

7.3 Service Form ............................................................................................................................................... 15

SECTION 8.0 DRAWINGS AND DIAGRAMS .............................................................................................. 17

PAGE 4

1.0 GENERAL INFORMATION

This manual contains technical and general information concerning the installation, operation and calibration of the Hastings HVC-282 Vacuum Gauge, and associated components.

For proper operation, the Hastings HVC-282 Vacuum Gauge must be suitably connected to a Hastings Model DV-273 Gauge Tube. Attempting to use this Vacuum Gauge with any other transducer may damage the gauge and or transducer .

1.1 Description:

The HVC-282 vacuum instrument offers a digital readout of 0-20 Torr with 0.01 Torr resolution with two adjustable set point relays, using a international input power supply for 115/220VAC 50/60Hz operation depending on internal switch configuration (Please see Sec. 4.0), all in a standard Hastings VT Gauge unit. The DV -273 Hastings gauge tube is rugged but sensitive, specifically made for this range, and matched for interchangeability without recalibration giving extra versatility for all vacuum applications. Tubes are temperature compensated, but do respond to large ∆T transients, requiring insulating tubes to reduce temperature transients.

1.2 Operating Principle:

Operation of the HVC-282 V acuum Gauge is based on a low voltage DC bridge which heats a noble metal thermopile. A change in pressure creates a change in the thermal conductivity of gas surrounding the thermopile, thus at vacuum, little power is used to heat the thermopile and at full scale requires maximum power. Power level is indicative of vacuum level present in tube.

1.3 Specifications:

Range/ Resolution .................................................................................................................. 0-20 Torr/0.01 T orr

Readout ......................................................................................................................... 3 1 /2 digit LCD display.

Linear Output .................................................................................. 0-2VDC ±5% & 3mV with fine span adjustment.

Set Points ..................................................0 - 2 0 T orr/0.01 Torr , stability of ±3 counts over 00 to 500 Coperational range.

Accuracy ......................................................................±5% of reading & ±3 counts. Gauge tube must be protected

from large temperature transients. (See 3.2)

Repeatability .................................................................±1% of reading & ±3 counts. Gauge tube must be protected

from large temperature transients. (See 3.2)

Power Requirements ................................................. 115VAC ±15V or 220VAC ±30V (Selectable) 50/60Hz <4 watts.

PAGE 5

Hi / Lo Relays............................................................................... SPDT N.O./N.C. up to 125VAC 10A or 277VAC 6A

With onetime ≈10sec. delay to prevent relay chater ,

only during unit power up.

Operational Limits .......................................................................................00 to 50OC <80%RH non-condensating.

Storage: -20

to 500C (Non-operational).

Size .......................................................................................................... Hastings CVT Gauge standard package

Weight Approx. ................................................................. 20.2oz./12oz. (0.58Kg/0.33Kg) unit and cables respectively .

Cables ....................................................................................... 6ft. power cable and 8ft gauge tube cable supplied.

Gauge tube cable extensions available.

Gauge Tube Overpressure .....................................................................................150 psi Max. (Absolute pressure)

Gauge Tube Construction........................................................................... Nickel-plated steel with plastic octal base

Stock No. ........................................................................................HVC-282 (55-282), DV-273 Gauge tube (55-273)

1.4 Accessories:

EXTENSION CABLES: Available in 12-ft., 25-ft., 50-ft., and 100-ft. lengths. STOCK # MODEL # DESCRIPTION 65-1 13 TIN-8-VS 8-foot replacement cable 55-84 VP-12-VS 12-foot extension cable 55-85 VP-25-VS 25-foot extension cable 55-86 VP-50-VS 50-foot extension cable 55-87 VP-100-VS 100-foot extension cable GAUGE TUBE INST ALLATION ACCESSORIES: Quick connects, dropout traps, adapters, and valved quick connects (see

Product Bulletin No. 352).

PAGE 6

2.0 GAUGE TUBE AND CABLES

2.1 Gauge Tubes:

Octal sockets of standard metal tubes are color-coded for easy identification; DV -273 is dark blue. The tubes are to be installed in 1/8" NPT female thread, or in a Hastings type OS Quick Connector . Maximum overpressure of gauge tube is 150 psi. Construction of shell is of Nickel-plated steel. See section 1.2 for Operating Principle.

2.2 Gauge Tube Cables:

The four color-coded wires (Black, Red, White, Green) are connected as shown on the label on the top of can. See Figure 2.1 for socket connections.

Each instrument is shipped with a 6-foot power cable and an 8-foot gauge tube cable. Extension gauge tube cables are available. (See table in Sec-1.5).

FIG.2.1

PAGE 7

3.0 INSTALLA TION

3.1 Panel Mounting:

Section 8 of this manual shows an outline drawing detailing panel cutout for a standard Hastings CVT Gauge. Install the meter on the panel using the supplied hardware.

3.2 Gauge Tube Installation:

Situate the gauge tube in a clean, dry vacuum system with the open end pointing down so as to be self-draining should any vapors condense in it (see Section 6.0). Screw metal tubes into 1/8" female NPT threads using a suitable sealant; Teflon tape is recommended, or use Hastings Quick Connect O-ring seals for a vacuum tight installation. Do not use Quick Connect if tube will see pressures greater than A TM.

For information on Hastings Installation Accessories, refer to Product Bulletin #352.

Gauge tube may be operated immediately , but best results will be obtained after the tube has outgassed for approximately 1 hour.

Tubes are temperature compensated, but do respond to rapid transient environmental changes (greater than 5 degree C/ min.) T o minimize temperature transients effects please insulate gauge tube with glass wrap or other suit able insulation wrap.

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