User's Manual

USER MANUAL V1.05
© 2013 EnOcean | www.enocean.com STM 320 / STM 320C / STM 320U User Manual V1.05 | Page 7/18
STM 320 / STM 320C / STM 320U
2.4 Environmental conditions
Operating temperature -20 °C … +60 °C
Storage temperature -20 °C … +60 °C, recommended
4
: +10 °C…+30 °C, <60%r.h.
Shelf life (in absolute darkness) 36 months after delivery
5
Humidity 0% … 93% r.h., non-condensing
2.5 Ordering Information
Type
Ordering Code
Frequency
STM 320
S3001-D320
868.3 MHz
STM 320C
S3031-D320
315.0 MHz
STM 320U
S3051-D320
902.875 MHz
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Recommended for maximum life of energy storage capacitor
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Deep discharge of the PAS614L energy storage leads to degradation of performance.
Therefore products have to be taken into operation after 36 months. At least the PAS614L
needs to be recharged to 2.1 V.
The module shall not be placed on conductive materials, to prevent discharge of
the internal energy storages
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. Even materials such as conductive foam (ESD pro-
tection) may have negative impact.