
SmartReader Plus Data Loggers
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· The Low Pressure Model. This model has an internal pressure channel with 0 to 10"
water column sensor and an internal temperature sensor.
1.6.2 Setup
Using the Standard Pressure Channel
1. If you are going to measure pressure, you will need the appropriate fittings to tie into the
system or equipment you intend to monitor.
2. Use TrendReader software to enable the pressure channel. Then assign the correct
pressure equation for the model you are using.
External Relative Humidity
Pressure Models
The following table describes the models available and includes the range over which they can
be used, the resolution of readings they will provide and the equation you should assign to the
pressure channel.
Pressure Measurement Precautions
The SmartReader Plus 4 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.
· The pressure sensor in the SmartReader Plus 4 is compatible with non-corrosive gases
and dry air. It is not to be used for liquid pressure measurements.
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 SmartReader Plus 4, you must enable the logger's external temperature
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