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Send:
gflow
Receive:
gflow actual 15.68 target 16.00 sccm
intensity
This command reports the photometer detector intensity. This command
is only available if the photometer option is installed.
Send:
intensity
Receive:
intensity 101286 Hz
o3
This command reports the O
The example below shows that the O
command is only available if the photometer option is installed.
Send:
o3
Receive:
o3 5.000E+00 ppb
pres
This command reports the photometer bench pressure. The first pressure
reading is the pressure reading being used in instrument calculations. The
second pressure is the actual pressure reading being measured. If pressure
compensation is on, then both pressure readings are the same. If pressure
compensation is off, a pressure of 760 mmHg is used as default pressure
even though the actual pressure is 753.4 mmHg. The example below shows
that the actual reaction chamber pressure is 753.4 mmHg. This command
is only available if the photometer option is installed.
Send:
pres
Receive:
pres 753.4 mmHg, actual 753.4
status
This command returns the gas and span status of the Model 146i.
Send:
status
Receive:
status remote gas A span 4
flags
This reports 8 hexadecimal digits (or flags) that represent the status of the
pressure and temperature compensation status, flow mode, and alarms. To
decode the flags, each hexadecimal digit is converted to binary as shown in
the
Figure
B–1. It is the binary digits that define the status of each
parameter. In the example below, the instrument is reporting that it is in
span 1 with no gases currently selected.
Send:
flags
Receive:
flags 00008000
concentration measured by the photometer.
3
concentration is 5 ppm. This
3
Model 146i Instruction Manual
C-Link Protocol Commands
Measurements
B-9
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Troubleshooting
