METER GROUP Apogee SO-411, Руководство пользователя

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3
INSTALLATION
Table 1 Installation (continued)
Installation
Install in Chosen Measurement Environment
For the most stable readings, sensors should be mounted vertically with the
opening pointed down and the cable pointed up.
For above-ground or enclosure installations, simply place the sensor in the
chosen measurement environment and secure as needed.
For buried installation, dig or auger a hole to desired depth and install the
oxygen sensor. Carefully backfill the hole.
Secure and Protect Cables
NOTE: Improperly protected cables can lead to severed cables or disconnected sensors.
Cabling issues can be caused by many factors such as rodent damage, driving over sensor
cables, tripping over cables, not leaving enough cable slack during installation, or poor
sensor wiring connections.
Install cables in conduit or plastic cladding when near the ground to avoid
rodent damage.
Gather and secure cables between the sensors and the data logger to the
mounting post in one or more places to ensure cable weight does not pull the
plug free from its port.
Connect to Data Logger
Plug the sensor into a data logger.
Use the data logger to make sure the sensor is reading properly.
Verify these readings are within expected ranges.
For more instructions on connecting to data loggers, refer to Section 2.1.
Connect Heater Leads
Connect a continuous 12-VDC supply across the red (positive) and black
(negative) leads of the heater cable if the oxygen sensor is deployed in soil
( Section 2.3 ).
2.1 CONNECT TO METER ZENTRA SERIES LOGGER
Apogee SO-411 sensors are preconfigured by METER and work seamlessly with METER
ZENTRA series data loggers. The sensors come with a 3.5-mm stereo plug connector (
Figure 1 )
to facilitate easy connection with the data loggers. Apogee sensors come standard with a 5-m
cable that splits into separate leads for the data logger and the heater power supply.
Ground
Digital
communication (orange)
Power (brown)
Figure 1 3.5-mm stereo plug connector wiring