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DAVC

Product catalog summary

Overview
The Teledyne Hastings Instruments' DAVC (Digital AVC) is a microprocessor-based vacuum gauge designed for continuous vacuum measurement and process control. It offers both linear analog and digital outputs, making it suitable for integration with various data acquisition systems.

Specifications

Measurement Ranges: DV-4 (0.1 – 20 Torr), DV-5 (0.1 – 100 mTorr), DV-6 (1 – 1000 mTorr).
Accuracy: Varies by model, with maximum deviations of ±20% of reading plus a fixed error.
Input Power: 11 - 32 VDC, 0.7 W.
Operating Temperature: -20 to 70°C.
Communication: RS232, 9600 — 19200 baud.

Features

Linear analog output options: 0-1 VDC, 0-5 VDC, 0-10 VDC, 4-20 mA, or 0-20 mA.
Nonlinear amplified tube output: 0-1 VDC.
Digital output via RS232 for direct computer connection.
Compatible with Hastings' popular gauge tubes and calibration reference tubes.
CE Compliant: EN61326.

Applications
The DAVC is suitable for various applications including vacuum furnaces, plasma coating, refrigeration/HVAC, power/transformer fill & maintenance, cryogenics/vacuum insulation, freeze drying, and accelerators.

Benefits

Proven reliability with less downtime.
Easy installation and operation.
Cost-effective and rugged design.
Compact and lightweight.

Additional Information
The DAVC is equipped with simple controls for setting tube curves, adjusting heating voltage, and setting pressure notifications. It is ready for use out of the box, with adjustments needed only for higher accuracy.

Note: Gauge tubes are sold separately and should be selected based on the required vacuum range. For more information, refer to Product Bulletin PB-105.

Catalog excerpts

TELEDYNE HASTINGS INSTRUMENTS DAVC Linear Analog Output: 0 ‐ 1 VDC / 0 ‐ 5 VDC / 0 ‐ 10 VDC 0 ‐ 20 mA / 4 ‐ 20 mA Nonlinear Ampliﬁed Tube Output: 0 ‐ 1 VDC Digital Output ‐ RS232 Operates Has ngs Most Popular Gauge Tubes Compa ble with Calibra on Reference Tubes 11 ‐ 32 VDC TTL Setpoint for Process Control (w/LED) CE Compliant: EN61326 Vacuum Furnaces Plasma Coa ng Refrigera on / HVAC Power/Transformer Fill & Maintenance Cryogenics/Vacuum Insula on Freeze Drying Accelerators

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www.teledyne-hi.comDescription & Specifications DESCRIPTION The Teledyne Hastings Instruments’ DAVC (Digital AVC) is a microprocessor-based vacuum gauge. In addition to the linear analog outputs (0-1 VDC, 0-5 VDC, 0-10 VDC, 4-20 mA, or 0-20 mA), pressure measurements can be accessed via the RS232 digital output. Digital readings can be provided in either Torr, mbar, or Pascal units. A precision A/D converter, along with the microprocessor, measures the thermocouple vacuum gauge tube’s output and converts the measurement to a pressure reading employing the gauge tube’s well-defined output/ pressure...

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www.teledyne-hi.comOutline Drawings TOP VIEW TUBES ARE SOLD SEPARATELY FOR MORE INFORMATION GO TO: http://www.teledvne-hi.com/pdfs/PB-105 Thermocouple-Gauee-Tubes.pdf

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www.teledyne-hi.com Pressure Units Analog Output DAVC Shipment Includes • DAVC Electronics Module • 1.5m I/O Cable (CB-DAVC-1.5m) Note: Nonlinear amplified tube output (0-1 VDC) is always available on Pins 7 & 6

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www.teledyne-hi.com Gauge tubes are sold separately. For an en re list of available gauge tubes for use with the DAVC, see Product Bulle n PB‐105. Gauge Tube Selection Chart Instrument Series Vacuum Range Color Band Reference Tubes Note: Color band is not used on all tubes. For proper accuracy and performance, THI Vacuum Gauges should always be used with the proper range of THI Vacuum Gauge Tubes. Telephone: (757) 723‐6531 Toll Free: (800) 950‐2468 Fax: (757) 723‐3925 World Wide Web: h p://www.teledyne‐hi.com E‐mail: has [email protected] P.O. Box 1436 Hampton, VA 2...

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