Overview - Campbell EE181 Product Manual

7. Select the measurement and its associated output option.
8. Click Finish and save the program. Send the program to the data logger if the data logger
is connected to the computer.
9. If the sensor is connected to the data logger, check the output of the sensor in the data
display in LoggerNet, RTDAQ, or PC400 to make sure it is making reasonable
measurements.

5. Overview

The EE181 is a digital probe with linear voltage outputs for temperature and humidity. Its voltage
signals are measured with two single-ended inputs on the data logger.
Campbell Scientific recommends 12 V power when used with our data loggers. When minimizing
power use is important, power can be switched on and off for the measurement, provided there
is a two-second warm-up delay. Switching power avoids constant current flow through data
logger ground, which can affect the accuracy of low-level single-ended voltage measurements.
The EE181 uses a metal mesh filter with excellent response, protection against dust, and no water
absorption.
Features:
Well-suited for long-term, unattended applications
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Accurate and rugged
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Compatible with the following CRBasic data loggers: CR6, CR1000X, CR800 series,
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CR300 series, CR3000, CR1000
EE181 Temperature and Relative Humidity Probe 4