User's Manual

USER MANUA
L
V0.60
© 2010 EnOcean | www.enocean.com STM 330 / STM 330C User Manual V0.60 | Page 19
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STM 330 / STM 330C
Calculations are performed on the basis of electric charges because of the internal linear
voltage regulator of the module. Energy consumption varies with voltage of the energy
storage while consumption of electric charge is constant.
From these values the following performance parameters have been calculated:
Wake
cycle
[s]
Transmit
interval
Operation Time
in darkness [h]
when storage
fully charged
Required reload
time [h] at 200
lux within 24 h
for continuous
operation
24 h operation
after 6 h
illumination
at x lux
Illumina-
tion level
in lux for
continuous
operation
Current
in µA
required
for con-
tinuous
operation
1 1 0.5 storage too sm all storage too sm all 5220 130.5
1 10 1.7 storage too sm all storage too sm all 1620 40.5
1 100 2.1 storage too sm all storage too sm all 1250 31.3
10 1 5.1 storage too sm all storage too sm all 540 13.5
10 10 16 21 700 175 4.4
10 100 20 16.8 560 140 3.5
100 1 43 7.8 260 65 1.6
100 10 98 3.6 120 30 0.8
100 100 112 3 100 25 0.6
Assumptions:
 Internal storage PAS614L-VL3 with 0.25 F, Umax=3.2 V, Umin=2.2 V, T=25 °C
 Consumption: Transmit cycle 100 µC, measurement cycle 30 µC
 Pre-installed solar cell ECS 300, operating values 3 V and 5 µA @ 200 lux fluorescent
light
 Current proportional to illumination level (not true at very low levels!)
These values are calculated values, the accuracy is about +/-20%!