Temperature and humidity detector
«Ri-THD-1»
Installation guide
1 GENERAL INFORMATION
1.1 The «Ri-THD-1» temperature and humidity detector (hereinafter
referred to as the Detector) monitors air temperature and relative air
humidity and transmits digital readings via a two-way radio channel in
accordance with the «Ri-Contact-R» protocol.
1.2 The Detector works as part of the RiDom smart home security
system, communicating with the «Ri-HUB-1» control center (hereinafter
referred to as the Hub) using the «Ri-Contact-R» radio channel protocol.
1.3 The Detector does not require licensing and registration as the
radio frequency product.
1.4 Two frequencies – the main and the backup – are used for the
exchange of radio signals between the Detector and the Hub. The
transition to the backup frequency happens automatically.
1.5 The Detector has two of measurement and control channels.
Channel 1 is for temperature sensor (hereinafter – TS). Channel 2 is for
humidity sensor (hereinafter referred to as HS).
1.6 The controlled ranges of air temperature and relative air humidity
are set in the sensor at the factory. The temperature limits range is from
-40 °С to +125 °С. The air humidity limits range is from 0% to 100%. The
boundaries of the controlled range are stored in the non-volatile memory
of the Detector and can be changed by a command from the Hub for
each channel separately. When the temperature or relative humidity
goes beyond the controlled range, an «Alarm» is generated on the
corresponding channel.
1.7 The Detector generates and transmits the following notifications
over the radio channel:
- the normal status – when the temperature and humidity are within
the specified range;
- alarm on channel 1 – when the temperature in channel 1 exceeds
the specified range by 0.5 °C or more;
- alarm on channel 2 – when the humidity in channel 2 exceeds the
specified range by 5% or more;
- opening of the case;
- battery discharge;
- «Linking» mode;
- «Identification» mode;
- quality of communication.
1.8 The Detector is designed for continuous round-the-clock operation.
1.9 The Detector is resistant to electromagnetic interference.
2 SPECIFICATIONS
Table 1
Parameter
Frequency range
Radiation power, no more
Temperature measurement accuracy in the
operating range
Humidity measurement accuracy in the operating
range
Protection class
Battery type
Duration of operation of the Detector from the
battery under normal climatic conditions and a
set period airing of 60 seconds
Dimensions
Weight
Average service life
Operational conditions
Operating temperature range
Permissible air humidity at a temperature
of +25 °C, without moisture condensation
* The recommended operating humidity range is 20 to 80% RH (non-condensing) at
0 to 55°C. Prolonged operation outside of these ranges can cause the humidity sensor to
drift with a long recovery time.
3 SCOPE OF SUPPLY
Table 2
Temperature and humidity detector «Ri-THD-1»
Screw 3-3x30.016
Lithium battery CR123A
Installation guide for the «Ri-THD-1»
* Included
4 VIEW AND DESIGN
The Detector consists of a case cover and a case base with a mounted
printed circuit board (1).
The following elements are located on the printed circuit board:
- built-in temperature and humidity sensor (2);
- RESET contacts (3);
- opening sensor (4);
- battery holder (5);
- battery (6) with insulator (7);
- red and green LED indicators (8);
- antenna (10).
The board is fixed in the base of the case with a latch (9).
There are mounting holes on the base of the case in the lower part (11)
and in the side wall (13), ventilation openings for TS and HS (14).
5 INDICATION
The Detector generates the following types of indication:
- the «Linking» mode indication (registration of the Detector in the Hub);
- the «Identification» indication turns on upon receipt of the appropriate
command from the Hub and remains active for 15 minutes or until the
case is opened;
Indicator modes are listed in Table 3.
Table 3
Value
868,7...869,2 MHz
«Channel 1 alarm»
25 mW
«Channel 2 alarm»
± 0,5 °С
±5 % RH
IP20
CR123A, 1 pc.
quality assessment
36 months
97х25х22 mm
6 CHOOSING THE PLACE OF INSTALLATION
50 g
The Detector should be installed indoors only. When choosing a place
8 years
for installation of the Detector, consider the presence of obstacles that
can weaken the transmission of the radio signal.
The Detector is intended for indoor installation only.
-20... +55
С
о
DO NOT install the Detector if the following cases:
Up to 98 %
1. In close proximity to electrical wiring.
2. Near metal objects and mirrors that cause attenuation of the radio
signal or shield it.
3. Outdoor.
Name
а) case base with PCB
10
9
1
2
3
8
4
7
5
6
Picture 1 – «Ri-THD-1» detector case
Detector status
Indication
Turning on the green
«Linking» mode
indicator with a period of 1 s
Completion of
Turning on the red indicator
«Linking»
for 2–3 s
Periodic turning on of the red
indicator with a period of 1 s
«Identification»
Alternately turning on the
mode
red and green indicators
Connection
See «Connection quality assessment» paragraph
«Normal»
б) case base
14
13
13
Notes
Registration of the
Detector in the Hub
With case closed
Received the
corresponding
command from the
Hub
Off
Qty.
1 pc.
2 pc.
1 pc.*
1 copy
11
12
11
Need help?
Do you have a question about the Ri-THD-1 and is the answer not in the manual?
Questions and answers