Aereco S-RH User manual

TF5710_B-v1-web
HUMIDITY AND TEMPERATURE
AMBIENT AIR SENSOR
INSTALLATION AND OPERATING INSTRUCTIONS
ENGLISH
S-RH/T

1
DESCRIPTION
This sensor measures ambient relative humidity as well as temperature. It
miniaturized sensitive element uses a CMOS capacitive relative humidity
sensor and a band gap temperature sensor, for a very precise and stable
measurement with a very low consumption. The sensor is self calibrated.
The user can choose between two outputs: 0-10V or PWM.
APPLICATIONS
∙ HVAC: Demand Controlled Ventilation, fan control, damper control, air
conditioning control, Indoor Air Quality level indicator, etc.
∙ BMS: Indoor Air Quality level indicator, Indoor Air Quality monitoring, etc.
Specially suitable for rooms where variations of humidity or temperature are
relatively important and can be used to drive a system such as ventilation or
air conditioning: bedrooms, living room, kitchens, bathrooms.

2
WARNINGS
PLEASE READ THE FOLLOWING INSTRUCTIONS BEFORE THE
INSTALLATION:
∙In case of non-compliance with advice and warnings contained
in this manual, the manufacturer can not be considered
responsible for damages to persons or property.
∙The installation and electrical connections must be carried
out by a qualified technician according to the manufacturer’s
instructions and in compliance with the characteristics of the
product
∙Before carrying out any operation on the appliance, unplug or
disconnect it from the power supply, and ensure it can not be
accidentally restored.
∙Power cable modification or replacement must only be carried
out by qualified personnel or by After-sales Service.

3
INSTALLATION
Sensors must be installed on the wall, at a height of at least 1.5meters
from the floor, or at the ceiling, and must respect the following
recommendations:
∙ keep the sensor away from any direct solar radiation,
∙ keep the sensor away from draughts (door, window, supply, etc.),
∙ avoid placing the sensor in dead zones (behind curtains, furniture),
∙ keep the sensor away from heat sources and from occupants
∙ if the sensor is located at the ceiling, keep it away from any air supply unit.
C
D
B
A
C
D
B
A

4
STEPS
1. Remove the front cover (A).
2. Unclip the electronic card (B) and the plastic protection (D) from the base (C).
3. Fix the base (C) by the mean of 2 screws (not supplied). The screws and
plug must be chosen according to the type of the support.
4. Connections : use PVC wires S minimum = 0.25 mm² for all the wires.
On the electronic card (B), connect the wires as follows:
Connectors
V+ S1 S2 S3 S4 GND
Supply
(2 wires)
12VDC 0V
PWM
output
(2wires)
PWM RH
n.1
PWM
Temp. n.1
PWM Temp.
n.2
PWM RH
0-10 V
output
(2wires)
10 V –
RH
10 V –
Temp. 0V
∙ PWM output RH : 0% = 0% RH ; 100% = 100% RH
∙ PWM output T : 0% = 0°C ; 100% = + 50°C
∙ 0 - 10V output RH : 0V = 0% RH ; 10V = 100% RH
∙ 0 - 10V output T : 0V = -40°C; 10V = + 125°C
PWM and 0-10V output can be use simultaneously.
5. Clip the electronic card (B) with the plastic protection (D) inside the base (C)
6. Put the cover (A) on the base (C)
7. Connect the wires to the external devices (12VDC supply and device
driven by the PWM or 0-10V output with a mini 1MΩ impedence
8. Only once all the connections have beenmade, plug on the supply of the
system.

5
CAUTION!
Chemical vapors at high concentration in combination
with long exposure times may oset the sensor reading. In
manufacturing and transport the sensors shall be prevented of
high concentration of chemical solvents and long exposure times.
Out-gassing of glues, adhesive tapes and stickers or out-gassing
packaging material such as bubble foils, foams, etc. shall be
avoided. Manufacturing area shall be well ventilated.
Never connect the 12VDC supply to S1 or S2 and the 0V supply
to GND, otherwise S1 and S2 output will be crashed.
A protection is implemented to protect the product in case of wrong
connection, when the following mistakes occur:
∙ Inversion of the supply wires (GND and V+).
∙ 12 V supply connected to S3 and S4 and 0 V supply on GND.

6
TECHNICAL DATA
Measurement principle Capacitive humidity sensor
Band gap temperature sensor
Working range -40°C +120°C
0% - 100% Relative Humidity
Precision RH max +/-3% RH at 25°C,
typical +/-2% on 20% -80% range.
Precision temperature max +/-0,4°C in [5°C ; 60°C] range, typical 0,3°C.
Measuring time interval 60s
Supply voltage 12 V DC +/- 10 %.
Average power consumption 15mA
Peak current max. 1A (use for fuse sizing)
Enclosure Protection IP 20
Storage conditions 10…50°C 0...60% RH
PWM digital output
Output data
0 to 100%
0% = 0% RH ; 100 % = 100% RH
0% = 0°C ; 100% = + 50°C
Voltage (S1 and S2) 12VDC +/- 10%.
Frequency (S1 and S2) 1 KHz
0-10V analog output
Output data
0 to 10 V
0V = 0% RH ; 10 V = 100% RH
0V = -40°C; 10 V = + 125°C
Voltage (S3 and S4) 0 to 10V
Impedence (S3 and S4) >1MΩ

TF5710_B-v1-web
This product is manufactured by Aereco S.A. in France
62 rue de Lamirault
Collégien
77615 MARNE LA VALLEE CEDEX 3
FRANCE
www.aereco.com
MAINTENANCE
Check frequently that the product is clean and remove dust if needed.
No calibration required. Caution: Never touch the sensing element
otherwise the detection may be damaged.
WARRANTY
The product is guaranteed two years. Its validity is submitted to conformed
installation, use andmaintenance.