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5-4 Setting the CO2 Altitude ( Height ) value
For precision measurement, it recommend to set the meter's
environment altitude ( height ) value for the compensation.
When the lower display show " ALt " :
1)Press the " Enter Button " ( 3-4, Fig. 1 ) once, the upper
display will show the setting " altitude ( Height ) value "
with meter unit. Use the "
"
Button " ( 3-6, Fig. 1 ) to set the desired Altitude
▼
value ( meters ).
2)After setting the altitude value, press the " Enter Button "
( 3-4, Fig. 1 ) will save the setting value with default.
* If before press the " Enter Button ", just press
the " ESC Button " ( 3-3, Fig. 1 ) will escape the
Advanced Setting procedures without saving the
alarm value into the circuit memory.
6. RS232 PC SERIAL INTERFACE
The instrument has RS232 PC serial interface via a 3.5
mm terminal ( 3-10, Fig. 1 ).
The data output is a 16 digit stream which can be
utilized for user's specific application.
A RS232 lead with the following connection will be
required to link the instrument with the PC serial port.
Meter
(3.5 mm jack plug)
Center Pin........................Pin 4
Ground/shield.....................Pin 2
Button " ( 3-5, Fig. 1 ) or
▲
PC
(9W 'D" Connector)
Pin 5
12
2.2 K
resister
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