RH520-EU_ENG V4.2 3/10
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Introduction
Congratulations on your purchase of the Extech RH520 Tempe Humidity Chart
Recorder. The RH520 measures and displays Temperature, Humidity, and Dew Point.
The remote (detachable) probe senses the ambient conditions while the LCD display
graphs and provides numerical representation of the readings. Programmable audio-
visual alarms alert the user when ambient conditions reach alarm presets. The optional
alarm module permits automatic relay switching when alarm presets are reached.
The RH520 Internal Memory can store up to 49,152 measurements for later transfer to a
PC. Careful use of this instrument will provide years of reliable service.
CAUTIONS
•
This device is not a toy and must not reach children’s hands. It contains hazardous
objects as well as small parts that the children could swallow. In case a child
swallows any of them, please contact a physician immediately
•
Do not leave batteries and packing material lying around unattended; they can be
dangerous for children if they use them as toys
•
In case the device is going to be unused for an extended period of time, remove the
batteries to prevent them from training
•
Expired or damaged batteries can cause cauterization on contact with the skin.
Always, therefore, use suitable hand gloves in such cases
•
See that the batteries are not short-circuited. Do not throw batteries into the fire.
