IRGASON Integrated CO
2
/H
2
O Open-Path Gas Analyzer and 3D Sonic Anemometer
troubleshooting only. In normal operation, Temperature Sensor is set to
Auto-Select, and this setting is not used.
7.11 Pressure Sensor
This setting identifies which barometric pressure sensor is used. The EC100
always includes the basic barometer, but it may be ordered with the optional
enhanced barometer (model CS106). This setting defaults to EC100
Enhanced if the CS106 is ordered and to EC100 Basic otherwise.
There are two other possible settings for Pressure Sensor. First, the user may
supply a different pressure sensor. In this case, the setting should be changed
to User Supplied, with the appropriate values for gain and offset entered (see
below).
The final option is to select None for Pressure Sensor. The EC100 will use a
fixed (see below) value for pressure. This mode is intended for
troubleshooting only.
7.11.1 Pressure Gain
If Pressure Sensor is set to User Supplied, this setting gives the gain factor
(kPa/V) used to convert measured voltage to pressure. Normally, Pressure
Sensor is set to EC100 Basic or EC100 Enhanced, and this setting is not
used.
7.11.2 Pressure Offset
If Pressure Sensor is set to User Supplied, this setting gives the offset (kPa)
used to convert measured voltage to pressure. Normally, Pressure Sensor is
set to EC100 Basic or EC100 Enhanced, and this setting is not used.
7.11.3 Fixed Pressure Value
If Pressure Sensor is None, the EC100 will use the value of this setting for the
barometric pressure. This mode is intended for troubleshooting only. In
normal operation, this setting is not used.
7.12 Pressure Differential Enable
This setting should remain disabled. It is used only for closed-path analyzers.
7.13 Heater Control
When enabled, this setting applies a voltage between 0 and 4500 mV to heaters
near the optical windows of the analyzer. Heated windows inhibit the
formation of condensation, such as dew and frost, and help the analyzer
recover more quickly when precipitation has blocked the optical path. Use this
setting with caution. Excessive heating may lead to density fluctuations and
subsequent flux measurement errors. More information about heater control,
and specifically using a datalogger for control, may be found at the end of
Section 10.2, EC100Configure() Instruction.
18
(20 Seiten)
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Kommentare zu diesen Handbüchern