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| Digital AVC-4 & Digital AVC-6, Vacuum Gauge Meter |
The Digital AVC |
| Small & Light weight, Rugged, Installs anywhere |
| Description |
The Teledyne Hastings Instruments (THI) Digital AVC (DAVC) is a microprocessor controlled vacuum gauge meter without readout. In addition to the analog output (0 - 1 VDC), pressure measurement can be accessed by an RS232 serial port using Torr, mbar or Pa.
A precision A/D converter along with the microprocessor measures the thermocouple vacuum gauge tube's signal output, converts the measurement to a pressure reading employing the gauge tube's well-defined output/pressure function, and transmits the result.
These instruments are packed in a small extruded aluminum case with controls, and D-connector mounted on the top cover.
The Digital AVC Vacuum Gauge Meter is available for two of THI's most popular gauge tube families: the DV-4 and the DV-6. The DV-4 range is 0.02 - 20 Torr. The DV-6 range is 1 - 999 mTorr.
These tubes utilize THI's rugged but sensitive noble metal thermocouples that are designed specifically for each range. Tubes are matched and are interchangeable without calibration adjustments. They are compensated for temperature, rate of temperature change, and are corrosion resistant.
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Features
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Applications |
• Operates Hastings Instruments' Most Popular
 DV-4 and DV-6 Gauge Tubes
• Ranges:
DV-4 (0.02 - 20 Torr)
DV-6 (1 - 999 mTorr)
• Direct Replacement for the Model AVC
• Octal Connector to Vacuum Gauge Tube
• 9 Pin D-sub Electrical Connector
• Compatible with Calibration Reference Tubes
• 12 - 30 VDC Input
• 0 - 1 VDC Output (nonlinear)
• TTL Set point for Process Control (w/LED)
• RS-232
• CE Compliant EN61326 |
• Cryogenics/Vacuum Insulation
• Vacuum Furnaces
• Pharmaceutical Production
• Freeze Drying
• Agricultural Processes
• Glove Boxes
• Air Conditioning
• Plasma Coating
• Refrigeration (HVAC)
• Accelerators
• Appliance Manufacturing |
Specification |
Digital AVC |
View Product Bulletin |
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Manuals |
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Range |
DAVC-4 0.02-20 Torr
DAVC-6 1-999 mTorr |
Accuracy |
DAVC-4 +/- (20% of reading + 0.01 Torr) (max)
DAVC-6 +/- (15% of reading + 1 mTorr) (max) |
Cables |
One 1.5 meter I/O Cable combining power, serial communications, analog signals and relays. |
I/O Connector |
15-Pin Hi Density D-Connector, Male |
Power Requirements |
12-30 Volts DC, 0.7 watts |
Weight (approx.) |
22 oz (624 grams) without gauge & tube |
Operating Temperature |
-20 - 700 C |
Single Set Point Output |
Open-collector transistor for set point
(80 mA @ 30 VDC) |
Temperature Coefficient
(includes tube effects) |
DAVC-4 +/- (0.1% of reading + 2.6 mTorr)/0 C
DVAC-6 +/- (-025% of reading + 0.2 mTorr)/0C |
Tube Connector |
8 pin octal vacuum tube socket |
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