EPAC – EnOcean People Activity Counter
Installation Guide
Copyright EnOcean © 2019
Page 1 of 4
EPAC_Installation_Guide_V1.4
Package Content
PIR Sensor
Mounting plate for easy mounting at ceiling with
double-sided adhesive tape (included)
Securely secure the device with screws (not included)
Product Description
This ceiling mounted sensor is detecting people motion activity
in the sensing range underneath the sensor. The device is
wireless and solar-powered, so no batteries are needed under
typical light conditions and easiest to mount also in retrofitting.
The unit uses a passive infrared (PIR) sensor technology that
permanently records the people activity. After a certain time the
number of recorded motion activities (counter value) is
transmitted via a radio signal to an IoT space utilization system.
Functional Description
The PIR sensor is permanently active. If any motion is detected
within a 1 second measurement cycle time the activity counter is
incremented by 1. If any motion has been detected within a 2
minutes transmission cycle time a radio telegram is send with
the latest counter value indicating how many increments
(motions) have been detected within the latest 2 minutes. If no
motion has been detected during the latest 60 minutes an
unoccupied message is send (heartbeat signal). The activity
counter value is 16 bit and will not be reset after transmission.
Typical Applications
A people heat-map can easily be generated using several EPAC
sensors in a building area and visualizing the count data in a
floor plan by an IoT space utilization system. The number of
people (people count) should be derivable from the count data
using suited IoT analytics software (not provided with this
sensor).
Note:
To restrict the coverage area (e.g. for detecting the length
of a people cue), suitable lens covers can be made by 3D
printing (see sensor sensing range).
Specifications (typ. values)
EnOcean Equipment Profile
D2-15-00
Power Supply:
Optional:
Indoor light energy harvesting.
Supplemental battery (CR2032) or
external power (3-5 VDC, 2-wire)
RF Transmission Range
25 m (80 ft.)
Motion Sensing Range
10 m (34 ft.) diameter
(refer to coverage diagrams)
Startup Charge Times*:
First radio transmission
Light Test / Walk Test
(operation from empty energy store)
5 minutes @ 200 lux (linking)
1.5 hours @ 2000 lux
Time to Full Charge*
25 hours @ 200 lux
Life time in total darkness
72 hours (after full charge, no activity,
and break-in of several days)
Sustaining charge time for
battery free operation**
8 hours per 24 hours @ 100 lux
Optional Battery Life**:
Infrequent Bright Light
Consistent Low Light
Total Darkness
CR2032, min. 230 mAh
15 yrs
(with 200 lux for 2 hrs/day, 7 days/week)
10 yrs
(with 70 lux for 5 hrs/day, 7 days/week)
5 yrs
Measurement cycle time
0.9 s/- 10%
Transmission cycle time
2 m/- 10 % (counter value =
number of activities detected)
Heartbeat Transmission
Interval (unoccupied)
60 m/- 10% (no activity,
counter value NOT changed)
RF Communications
EnOcean 868 MHz (EPACA)
EnOcean 902 MHz (EPACU)
Dimensions (L x W x D)
160mm x 60mm x 37mm
(6.30” x 2.35” x 1.47”)
Weight
125 g (4.4 oz.)
Mounting Height
2-3 m (7-10 ft.) recommended
Environment
Indoor use only! 20% to 95% relative
humidity (non-condensing).
Operation 5°…30°C (41° to 86°F),
Storage -10°…+40°C (14° to 104°F).
Agency Compliance
RoHS, CE, RE-D
