METER GROUP Apogee SO-411, Руководство пользователя

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4
USING APOGEE OXYGEN SENSORS WITH ZENTRA SYSTEM
Check the METER download webpage for the most recent data logger firmware. Logger
configuration may be done using either ZENTRA Utility (desktop and mobile application) or
ZENTRA Cloud (web-based application for cell-enabled ZENTRA data loggers).
1. Plug the stereo plug connector into one of the sensor ports on the logger (
Figure 2 ).
Port 1 Port 2 Port 3 Port 4 Port 5 Port 6
TEST
OK
ERROR
(-)
(-) (-) (-)
(-) (+) (-) (+) (+)
(+) (+) (+)
Conduit
Figure 2 Logger connection
2. Connect to the data logger via ZENTRA Utility with a laptop and USB cable or ZENTRA
Utility Mobile app with a mobile device supporting Bluetooth communication.
3. Use ZENTRA Utility to scan the ports and make sure the sensors were properly identified
by the logger and are reading properly.
METER data loggers should automatically recognize the Apogee sensor.
4. Use ZENTRA Utility to set the measurement interval.
5. Use ZENTRA Utility to configure communication settings for data transfer to ZENTRA Cloud.
Sensor data can be downloaded from METER data loggers using either ZENTRA Utility or
ZENTRA Cloud. Refer to the logger user manual for more information.
2.2 SENSOR CALIBRATION
Before installing the oxygen sensor, it must be calibrated at ambient oxygen concentration
(20.95%) at the elevation of the measurement site. Galvanic cell type oxygen sensors
respond to the absolute oxygen concentration, which is dependent on absolute (barometric)
pressure and temperature in addition to the oxygen concentration of air. Therefore, oxygen
sensors are not calibrated at the factory and must be calibrated by the user before first use.
It is recommended that Apogee oxygen sensors be recalibrated periodically to maintain best
accuracy. Refer to the
SO-411 user manual for additional information (apogeeinstruments.
com/so-411-sdi-12-soil-response-thermistor-reference-oxygen-sensor).
Apogee sensors can be calibrated with a METER ZSC Bluetooth device or ZL6 data logger.