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Chapter 1Product Outline
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3639-20 PULSE LOGGER cannot be set with 3910-
20 COMMUNICATION BASE.
Use 3911-20 COMMUNICATION BASE to set
3639-20.
Chapter 1
Product Outline
The 3639-20 PULSE LOGGER counts and records the
pulses of pulse signals (mechanical contact inputs of
switches, relays, etc., or voltage inputs from 1.5 V to 45 V)
at a specified interval. It can be used for a wide variety of
devices that deliver pulse signals, such as rain gauges, flow
meters, and the like. As data is stored in a nonvolatile
memory, it is not lost even if the batteries run out or are
removed for replacement.