USER MANUAL
STM 550 / EMSI
–
ENOCEAN MULTISENSOR FOR IOT APPLICATIONS
© 2020 EnOcean | www.enocean.com F-710-017, V1.0
STM 550 / EMSI User Manual | v1.3 | September 2020 | Page 9/97
1.3
Technical data
Antenna
Integrated helix antenna
Transmission frequency / power
STM 550: 868.300 MHz / +5 dBm
STM 550U: 902.875 MHz / + 99 dBµV
STM 550J: 928.350 MHz / 0 dBm
Transmission data rate
125 kbit / s
Communication range (for guidance only)
200 m free field
30 m indoor environment
Temperature measurement range / accuracy
-
20 °C … +60 °C / +
- 0.3 K
(1)
Humidity measurement range / accuracy
0 … 100 % r.h. / +
- 3% r.h.
(1)
Illumination measurement range / accuracy
0 … 65000
lux / +-10 %
Acceleration measurement range / accuracy
+- 2 g / +-0.03 g
Acceleration threshold for immediate report
0.03 g (default, configurable via NFC)
Update rate (excl. random offset)
Every 60 seconds (configurable via NFC)
Device configuration
LRN button and NFC interface
User notification
LED (red)
Supported EEP (selectable via NFC)
D2-14-41 (default)
D2-14-40, A5-02-05, A5-04-01, A5-04-03
A5-06-02, A5-06-03, A5-14-05, D5-00-01
Power supply
Integrated solar cell
Minimum light level for self-supplied operation
200 lux for 6 hours per day
(2)
Operating time in darkness
4 days (after full charge)
Backup power supply (optional)
CR1632
Operation time with backup battery
Infrequent bright light (200 lux for 2 hrs per day)
Consistent low light (50 lux for 6 hrs per day)
Total Darkness
Renata CR1632 (137 mAh)
7 years
6 years
4.5 years
Dimensions (Module)
40 mm x 40 mm x 13 mm
Dimensions (Finished product)
49 mm x 49 mm x 13 mm
Note 1: STM 550 is designed for indoor use only and should only be used in the environmental conditions
specified below
Note 2: Minimum light level required for self-supplied operation with the default product configuration.
See chapter 2.3.1 for other scenarios
1.4
Environmental conditions
Operating Temperature
-
5 °C … +45 °C (indoor use in dry rooms only)
Humidity
0% to 90% r.h. (non-condensing)