C-Link Protocol Commands
Measurements
Thermo Electron Corporation Model 48i Instruction Manual B-9
co
high co
low co
These commands report the measured CO concentration when operating in
single range, or high and low CO when operating in dual or auto range
mode. The example below shows that the CO concentration is 40 ppm.
Send: co
Receive: co 0040E+0 ppm
flow
This command reports the current sample flow. The example below reports
that the current sample flow is 1.108 liters/minute.
Send: flow
Receive: flow 1.108 1/m
chamber temp
This command reports the current optical chamber temperature. The
example below reports that the current optical chamber temperature is 45.2
°C.
Send: chamber temp
Receive: chamber temp 45.2 deg C
internal temp
This command reports the current internal instrument temperature. The
first reading is the temperature being used in instrument calculations. The
second temperature is the actual temperature being measured. If
temperature compensation is on, then both temperature readings are the
same. If temperature compensation is off, a temperature of 30 °C is used as
the default temperature even though the actual internal temperature is 27.2
°C. The example below shows that temperature compensation is on and
that the internal temperature is 27.2 °C.
Send: internal temp
Receive: internal temp 27.2 deg C
motor
9 180
10 240
11 300
Table B-2. Averaging Times
Selection Averaging Time (seconds)
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