Gohastings.com DAVC-4 Manuel d'utilisateur Page 1

INSTRUCTION MANUAL TELEDYNE HASTINGS INSTRUMENTS DIGITAL AVC (DAVC-4, DAVC-5, DAVC-6) ISO 9001CERTIFIED

174-082010_Digital AVC Page 10 of 17 This signal is equal to an amplified tube millivolt signal. This signal will NOT be linearly proportional to t

174-082010_Digital AVC Page 11 of 17 Analog Output vs Pressure0.00010.0010.010.11101000 0.2 0.4 0.6 0.8 1 1.2VoltagePressure (Torr)DAVC6DAVC4DAVC4

174-082010_Digital AVC Page 12 of 17 3.3 Alarm Set point A single set point controls two open collector circuits. Though not the mechanical relays, t

174-082010_Digital AVC Page 13 of 17 Character Description Valid Inputs: m Most Significant Digit Of Mantissa 1 - 9 d Decimal Digit

174-082010_Digital AVC Page 14 of 17 digit exponent before being accepted. There are no limit checks on the data; the user is free to choose any valu

174-082010_Digital AVC Page 15 of 17 3.6 Gauge Tube Operating Principle Operation of the Hastings gauge tube is based on a low voltage AC bridge that

174-082010_Digital AVC Page 16 of 17 B. Turn the HTR potentiometer on the top panel until the either the voltage measured between pins 6, Analog Sig

174-082010_Digital AVC Page 17 of 17 4.1 Warranty Repair Policy Hastings Instruments warrants this product for a period of one year from the date of

174-082010_Digital AVC Page 2 of 17 Manual Print History The print history shown below lists the printing dates of all revisions and addenda created

174-082010_Digital AVC Page 3 of 17 Table of Contents 1.0 GENERAL INFORMATION ...

174-082010_Digital AVC Page 4 of 17 This manual contains technical and general information relating to the installation, operation, and calibration o

174-082010_Digital AVC Page 5 of 17 1.3 Compliance data 1.4 Safety The following symbols and terms may be found on THI products and/or in THI

174-082010_Digital AVC Page 6 of 17 1.4.3 Calibration Reference Tubes THI Reference Tubes employ the same metal thermopiles used in all THI Vacuum

174-082010_Digital AVC Page 7 of 17 2.1 Power-I/O Cable The Power-I/O Cable is assembled at the factory as shown in Fig. 1. Its terminal end is fin

174-082010_Digital AVC Page 8 of 17 Fig. 2 Relay Hook Up DIGITAL COMMONALARM 1 ALARM 2 DIGITAL COMMONDIGITAL COMMONPOWER COMM

174-082010_Digital AVC Page 9 of 17 All THI gauge tubes are shipped with a protective cap or cover at the evacuation port to reduce contamination an