WIRELESS TEMPERATURE
DETECTOR
«CELSIUS-RK»
1 General information
1.1 Wireless temperature detector «Celsius-RK» (hereinafter, «the
Detector») is designed for the temperature measurement and its control
within a preset range and for «temperature out-of-range» messages
with measured temperature values delivery via wireless two-way
communication channel within 433,05 - 434,79 MHz frequency range
by the «Rielta-Contact-R» wireless two-way communication protocol to
control pane (hereinafter, the CP).
1.2 The Detector operates within 433,05 … 434,79 MHz frequency
range. Radiated power of a transmitter does not exceed 10 mW.
1.3 Two frequencies: the main and the reserve one are used for the
wireless signal exchange with the CP. The detector switches to reserve
frequency automatically.
1.4 The Detector is powered by a single power-supply battery
СR123A type.
1.5 The Detector provides two temperature-measuring and control
channels:
Channel 1 – built-in signal processing unit (hereinafter, SPM);
Channel 2 – external temperature sensor (hereinafter, TS).
1.6 Two operating modes are available: single-channel mode and
double-channel mode. External TS should be hooked up to the Detector
if double-channel mode is chosen. Operational mode selection is
available during the Detector logging in the CP.
1.7 The Detector state is displayed by two-colors LED and sound
indicators.
1.8 The Detector is able to operate in stand-alone mode (ref. section
«Stand-alone mode»).
1.9 The preset limits of temperature range: the lower +17 °C, the
upper +27 °C are stored in nonvolatile memory and may be changed
by the relevant command from the CP, assisted for each channel apart.
1.10 The Detector generates and provides transmission of the
following messages:
- «Norm» – the temperature is within the preset range;
- «Channel 1 out-of-range» – Channel 1 temperature is out-of-range
by > 1° ;
- «Channel 2 out-of-range» – Channel 2 temperature is out-of-range
by > 1° ;
- «Tamper» – case or wall tampering;
- «Failure in channel 1» – SPM failure in channel 1;
- «Failure in channel 2» – TS failure in channel 2;
- «Power-supply low-battery» – under voltage supply drop by >
2.8
-0,4
V.
1.11 The Detector is designed for continuous and uninterrupted
operation.
2 Features
Table 1
Features
Value
Measurement error, not more:
within the temperature range from minus 10 up to +85 °С
within the temperature range from minus 55 up to minus
11 °С and from +86 °С up to +125 °С
±1.0 °С
±2.0 °С
Operating temperature:
- the Detector
- external TS
minus 20 ... +55 °С
minus 55 ... +125 °С
Permissible relative humidity at +25 °С, max
98 %
IP rating:
- the Detector
- TS
IP30
IP65
Dimensions, max
112 x 41 x 32 mm
TS cable group length, max
10 m
Weight, max
0.1 kg
Battery life, not less
8 years
The operation duration of the Detector powered by
one battery under normal climate conditions and
specified broadcast period 60 sec, minimum
36 months
3 Scope of Delivery
Table 2
Name
Qty
Wireless temperature detector «Celsius-RK»
Screw 3-3х30.016
СR123A battery
External temperature sensor
Wireless temperature detector «Celsius-RK» Installation Guide
1 pc.
2 pcs.
1 pc.
*
1 copy
* – available optionally
4 The Detector Construction
The Detector comprises the following elements: cover, base and
printed circuit board (PCB).
The cover (not shown) is fastened to the base (1) by latches located
on it’s end surfaces. For the cover opening push the latches by fingers.
At the front side of the PCB (2) the following entry is located: case
tamper (3), two-color LED indicator (4), connecting block for TS
switching (5), main power supply battery holder plate (6), «RESET»
contacts (8), SPM (9), sound alarm (10), antenna (11). Backup power
supply battery holder plate and wall tamper are located on PCB back
side. The PCB is fixed on the base by means of trip (7) and hooks on
the opposite side of the base.
Installation Guide
Figure 1 – The Detector with the opened cover
5 Sound and LED Indication
The Detector has the following indication modes:
- «Binding» procedure LED indication (procedure of logging in the CP);
- LED indication of the mode «Identification» is switched on by sending
relevant command from CP and remains active during 15 min or until
the case is opened;
- LED indication of the Detector state is switched on and remains
unchanged for 15 min after the case is closed under conditions:
a) other LED indication types (except the sound alarm) absence;
b) alarm «Tamper» message is not generated during this time period;
c) absence of command from the CP disabling the Detector state
indication.
Indication modes are listed in the Table 3.
Table 3
The Detector Mode
Indication
Note
End of «Binding»
procedure
LED lighting red for
2 – 3 sec
«Binding» mode
LED blinking green with
0.25 sec period
The Detector logging in
the CP in single-channel
mode
LED blinking green with
1 sec period
The Detector logging in
the CP in double-channel
mode
«Identification»
Alternate LED red and
green blinking
on command from the
CP
«Alarm in Channel 1»
«Alarm in Channel 2»
LED lighting red for
4 sec *
State indication is on
and «Identification»
indication is off
Generation
«Alarm in Channel 1»
«Alarm in Channel 2»
Sound alarm dual
switching **
State sound indication
is on
Fallback recovery
«Alarm in Channel 1»
«Alarm in Channel 2»
Single-shot sound alarm
switching **
Radio communication
quality appraisal
See sect. «Radio communication quality appraisal»
«Failure in channel 1»
«Failure in channel 2»
Orange LED indication
dual switching with
12 sec period *
State indication is on
and «Identification»
indication is off
«Normal»
Indication is off
*) – LED indication of the Detector state
**) – Sound indication of the Detector state
1
2
3
4
5
11
10
7
6
8 9
