Sentera Controls FCMFFB-R, Mounting And Operating Instructions

Page: 4 / 10

www.sentera.eu
MIW-FCMFXB-R-EN-000 - 19 / 02 / 2021 4 - 10
back to the table of contents
FCMFXB-R
INTELLIGENT CO
2
SENSOR WITH
BUZZER
PRODUCT DESCRIPTION
The FCMFXB-R series are intelligent sensors with integrated audible alarm. They
measure temperature, relative humidity and carbon dioxide levels. Based on the
temperature and relative humidity measurements, the dew point is calculated. Their
algorithm controls a single analogue / modulating output based on the measured
T, rH and CO
2
values, which can be used to directly control an EC fan or an actuator
powered damper. All parameters are accessible via Modbus RTU.
ARTICLE CODE
Article code Power supply Imax
FCMFFB-R 18—34 VDC 109 mA
FCMFGB-R 18—34 VDC / 15—24 VAC ± 10 % 190 mA
INTENDED AREA OF USE
■
Demand controlled ventilation based on temperature, relative humidity and CO
2
levels
■
Suitable for residential and commercial buildings
■
For indoor use only
TECHNICAL DATA
■
Inset or surface mounting
■
Bootloader for updating the firmware via Modbus RTU communication
■
Analogue / modulating output type:
► 0—10 VDC mode: min. load 50 kΩ (R
L
≥ 50 kΩ)
► 0—20 mA: max. load 500 Ω (R
L
≥ 500 Ω)
► PWM (open-collector type): PWM Frequency: 1 kHz, R
L
≥ 50 kΩ; PWM voltage
level 3,3 or 12 VDC
■
Selectable temperature range: -30—70 °C
■
Selectable relative humidity range: 0—100 %
■
Selectable CO
2
range: 0—2.000 ppm
■
Replaceable CO
2
sensor element
■
Replaceable audible alarm module, settable via Modbus register (OFF, continuous
or pulsed)
■
3 LEDs with adjustable light intensity for status indication
■
Accuracy: ±0,4 °C (range: 0—50 °C); ±3 % rH (range: 0—100 % rH); ±30 ppm CO
2
(range: 400—2.000 ppm)
■
Enclosure:
► internal: plastic RABS, black
► external: ABS, white
► cover: ASA, white
■
Protection standard: IP30 (according to EN 60529)
■
Typical range of use:
► temperature: 0—50 °C
► rel. humidity: 0—95 % rH (non-condensing)
► CO
2
: 400—2.000 ppm
■
Storage temperature: -10—60 °C