Features - Teledyne HVG-2020B Instruction Manual

HVG-2020B Instruction Manual

Features

COLOR DISPLAY WITH TOUCH PANEL. The HVG-2020B has an optional integrated touch panel color LCD
display. This gives the user easy configurability, stand-alone operation and local control over the instrument.
SUPERIOR ACCURACY. The output of the transducer is thermally compensated and linearized to provide
accuracy of ± (0.1% of reading + 0.3 Torr) between 1000 Torr and 10 Torr, better than ± (5% of reading +
0.00025 Torr) between 10 Torr and 1 mTorr, and better than 10% of reading + 0.00025 mTorr less than 1 mTorr
after zero adjustment.
GAS CORRECTION. The piezo-resistive sensor is media isolated and provides a direct pressure measurement
that is gas species independent. There are internal corrections available for the Pirani sensor when used with
other gases.
NO ELASTOMERS. The vacuum envelope of the HVG-2020B is entirely 300 series stainless steel with welded
construction and glass-to-metal seals. Using metal seal vacuum connections eliminates the permeation,
degradation and outgassing problems of elastomer O-rings.
FLEXIBLE POWER REQUIREMENTS. The HVG-2020B can operate with any power supply capable of providing 12
– 36 VDC via the 9-pin D connector or a 2 mm bayonet jack connection.
DIGITAL COMMUNICATIONS. The HVG-2020B is equipped with RS232/RS485 and USB for digital
communications. The USB connector serves as a virtual COM port for serial communication, eliminating the
need for a USB to Serial converter.
ANALOG OUTPUTS. The pressure is available in analog form as either a voltage or current signal on either a
logarithmic or linear scale. The 0-20 mA or 4-20 mA current option gives the user the advantages of a current
loop output to minimize environmental noise pickup and signal loss over long cable runs.
TTL ALARMS. Two alarm signals are provided with an open-drain configuration, one to indicate when pressure
goes above a value and the other below a value.
LED INDICATORS. Two LEDs provide instrument status and system pressure information.
EAR99 Technology Subject to Restrictions Contained on the Cover Page Page 6 of 40