gohastings.com Hastings Entertainment Cable Box DAVC-4 Manual De Usuario

Page 4 of 17

 

This manual contains technical and general information relating to the installation, operation, and 
calibration of vacuum gauges and gauge tubes manufactured by Teledyne Hastings Instruments (THI). 

For best performance, THI vacuum gauges should be operated with the appropriate THI gauge tube. 

Attempting to use a THI vacuum gauge with another manufacturer’s tubes may result in damage to both 
the gauge and tube. 

The THI Digital AVC (DAVC), is a digital readout version of THI’s AVC vacuum gauge. The heated gauge 

tube supplies an analog signal that is amplified for a zero to one volt signal out put. A precision A/D 
converter, in conjunction with a microprocessor, measures the gauge tube’s signal output, converts the 
measurement to a pressure reading using the gauge tube’s well defined output/pressure function, and then 
provides the result to the end user through a serial communications port. 

The DAVC is available for use with two of THI’s most popular gauge tube families: The DV-6 and DV-4. 

The DV-6 range is 1.0 - 1000 mTorr. The DV-4 range is 0.2 - 20 Torr. All gauge-tubes used with the Digital 
AVC feature long life and minimal maintenance due to the use of rugged, noble-metal, thermocouple (TC) 
gauge tubes that are designed specifically for each range. 

Input Power ............................................................................................................................ 12 – 30 VDC 

.................................................................................................................................................... 0.7 Watts 

Cable.............................................................Combination power and RS232 cable, 1.5 meters, included 

..................................................................... For CE Compliance, cable should never exceed 3.0 meters 

Weight (Approx.)  ....................................................................... 22 Oz’s (624 Grams) W/O Tube & Cable 

Height (Length) .................................................................................................... 2.6”, W/O Tube & Cable  

Width / Depth  .................................................................................................................................... 1.75” 

Operating temperature Range  ............................................................................................ -20°C to 70°C 

Standard Metal Gauge Tube.............................................................................. (DV-6R, DV-5M, DV-4R): 

Overpressure (Gauge tubes) ................................................................................................. 50 psig max. 

Material of Construction ................................................................................... DAVC Housing: Aluminum 

............................................................................................................ Thermocouple: Glass, Noble Metal 

Connections .........................................................................................High Density, 15-Pin, D Connector 

.........................................................................................................Octal Tube Socket for Thermocouple 

Alarms ..............................................................................................................................0.50 Amps, max. 

Tube Leak Test ....................................................................................................... <1x10

-8

 atm cc/sec He 

See tube Product Bulletin for available tube connection configurations. 

 

 

 

 

 

1.0  General Information