ACR Electronics SmartReader Plus Manual de usuario Pagina 71

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SmartReader Data Logger
63
Copyright © 2010 ACR Systems Inc. All Rights Reserved.
2
External Temperature
Appendix C
3
External Relative Humidity
71
4
0 - 2500 PPM
124
NOTE: When you activate either RH channel, you must also enable its
corresponding temperature channel, as well, in order to temperature compensate
the RH sensors.
Precautions
The IAQ Logger's RH Sensor is designed for long-term trouble-free performance, but there
are a few precautions to keep in mind to maximize the benefit it can give you.
· Never expose the sensor to organic solvents or ionic-laden liquids. Any chemical
compound that attracts polymers may affect the sensor.
· The RH sensor is particularly susceptible to contamination by sulfur gases and sulfur
compounds. DO NOT SMOKE NEAR THE LOGGER!
· Always return your IAQ Logger to a re-sealable plastic bag during non-use to maximize
the in-calibration life of the RH sensor.
1.12.3 Accessories
You can obtain replacement RH Sensors, remote temperature probes, temperature and
relative humidity probes for use with your IAQ Logger. The IAQ Logger can also be combined
with Telaire 7001 to measure carbon dioxide and temperature levels.
ET Series Temperature Sensors
The ET Series Temperature sensors are thermistor probes that can be used easily with your
IAQ Logger for remote temperature measurements. The advantage of these probes is that
they can be used for a wider range of temperatures, are more versatile (they can be used to
record fluid temperatures) and their small size permits them to be easily inserted in
hard-to-get-at-locations (such as in ductwork or under pipe insulation).
To use an ET Temperature probe with your IAQ Logger you must first enable the logger's
external temperature channel. Connect the remote temperature probe by connecting one wire
(of the two-wire probe) to the channel marked Temperature and the other wire to the terminal
marked Common. For more information on ET series thermistor probes, refer to Appendix C
Thermistor Temperature Probes.
EH-020A Temperature and Relative Humidity Probe
The EH-020A is a four-wire probe with a temperature and relative humidity sensor. For
field-mounting convenience, it also has a magnetic backing and a security eyelet. To use the
EH-020A with your IAQ Logger, you must enable the logger's external temperature and
humidity channels. To connect the EH-020A probe to your IAQ Logger, follow instruction
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