Instrutech The Hornet IGM402 User Manual page 30

Instruction Manual
- CG1/CG2 LG
In this mode two separate display screens appear sequentially. The first screen shows the convection
gauge 1 (CG1) data as shown in Example Ex 1B. This is followed by the second screen showing the
convection gauge 2 (CG2) data as shown in Example Ex 1C. The screens repeat each time the
programmed display interval time has elapsed. The ionization gauge (IG) data is not displayed.
- CG1/CG2 SM
This mode displays the measured pressure from the CG1 and CG2 convection gauges simultaneously in
one screen as shown in the example below:
CG1 Measured Pressure
- IG ONLY
This mode displays only the measured pressure from the ionization gauge in a single screen as shown in
Example Ex 1A.
- IG ONLY RND
This mode displays the measured pressure, emission current, ion current, filament voltage and filament
current. In the following example, the measured pressure is 1.00E-9 Torr, (Pressure unit is based on
selected units in SETUP UNIT menu). Emission current is 4.00E-3 amperes, Ion current is 4.00E-11
amperes, filament voltage is 1.5 Vdc and filament current is 1.9 amperes.
Emission current value(A)
Ion current value (A)
InstruTech
CG1: 1.23E-2
CG2: 760
Gas Symbol
N2
Ex 8A: CG1 and CG2 data displayed in CG1/CG2 SM mode
Negative Exponent
PT= 1.00E-9
IE= 4.00E-3
IC= 4.00E-11
FVI 1.5 1.9
Ex 10A: IG data displayed in IG ONLY RND mode
CG2 Measured Pressure
TORR
RLY A
Indicates Convection Gauge
CG1 Relay A is energized
Filament Voltage (Vdc)
IGM402 Hornet
Indicates Pressure Unit
Measured Pressure
Filament current (amperes)
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