MANUAL P/N 316005 REV: B
39
Chapter 3 - The Thermocouple Gauge Module
3.1 Introduction
The Thermocouple Gauge (TC) Module for the Granville-Phillips 316 Vacuum Gauge Controller provides
pressure measurement from 1 X 10
-3
Torr (1 X 10
-3
mbar or 1 x 10
-1
Pa) to 1 Torr. The basic 316505,
316506, 316507, or 316508 VGC displays pressure from one thermocouple gauge in display "A" via the
single channel "A", thermocouple module. Two additional pressures from thermocouple gauges can be
displayed in lines "B" and "C" via the dual channel "B" and "C" module. These gauges, modules and displays
are designated "TCA", "TCB" and "TCC" in this manual. Analog output is also provided. When used with the
process control, TCA controls setpoints 1 and 2, TCB controls setpoints 3 and 4, and TCC controls setpoints
5 and 6.
3.2 Thermocouple Gauge Module Installation
3.2.1 Units of Measure
Your instrument was shipped from the factory preset to display the units of measure - Torr, millibar or pascal,
that you requested. If you want to change the displayed units, proceed as follows:
1. Remove power to the control unit.
2. Remove the top cover and locate the TCA thermocouple gauge PC board. See Figure 3-1.
3. Locate the millibar (#1), and the pascal (#2) units switches.
4. Leave both switches open for Torr units; close the appropriate switch for either millibar or pascal units.
5. Modify the units of measure of the TCB and TCC module to be consistent with the TCA gauge module.
6. Slip the label card out of the top of the front panel and apply the appropriate pressure units label.
Note: The Slow Update Switch is a display update rate switch. "ON" enables pressure averaging, and the
display will update approximately every 3 seconds.
Figure 3-1 Thermocouple Modules, Top View
(Controller Cover Removed)
Содержание Granville-Phillips Convectron 316 Series
Страница 11: ...12 MANUAL P N 316005 REV B Figure 1 3 Mounting Configurations...
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Страница 27: ...28 MANUAL P N 316005 REV B Figure 2 4 Convectron Gauge Indicated vs True Pressure Curve 0 1 to 1000 Torr...
Страница 28: ...MANUAL P N 316005 REV B 29 Figure 2 5 Convectron Gauge Indicated vs True Pressure Curve 0 1 to 1000 Torr...
Страница 29: ...30 MANUAL P N 316005 REV B Figure 2 6 Convectron Gauge Indicated vs True Pressure Curve 10 4 to 0 1 mbar...
Страница 30: ...MANUAL P N 316005 REV B 31 Figure 2 7 Convectron Gauge Indicated vs True Pressure Curve 0 1 to 1000 mbar...
Страница 31: ...32 MANUAL P N 316005 REV B Figure 2 8 Convectron Gauge Indicated vs True Pressure Curve 0 1 to 1000 mbar...
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