WIRELESS FLOOD
DETECTOR
«
STZ-RK
»
Installation Guide
1 Product Overview
1.1 Wireless flood detector «STZ-RK» (hereinafter, the Detector) is intended
for detecting leaks of water, water solutions, other current-conducting
non-aggressive liquids and generating an alarm message via a two-way
communication by the «Rielta-Contact-R» protocol. The Detector is intended to
operate as a component of any control panel (hereinafter, CP) supporting the
wireless exchange protocol «Rielta-Contact-R».
1.2 The Detector comprises a Signal Processing Module (SPM) and flood sensors
«DZ-3V» (FS). The SPM has two connecting blocks for FS hooking up: «Loop 1»
and «Loop 2». Not more than two FSs can be hooked up in parallel to each loop.
1.3 The Detector is able to operate in two-loop or single-loop mode. The last
mode presumes the «Loop 2» status is ignored. The operation mode choosing
is available during the detector logging in the CP.
1.4 Radio signals are exchanged within the 433.05 to 434.79 MHz frequency
range. The transmitter output power does not exceed 10 mW.
1.5 Two operating frequencies: main and reserve are used for the wireless data
exchange. The Detector switches over reserve operating frequency automatically.
1.6 Radio exchange sessions are initiated by the Detector at a preset
frequency. The frequency settings are 10, 15, 30 sec, 1, 5, 10 min, chosen in
the process of the the binding procedure. The SPM transmits alarm messages
to the CP immediately.
1.7 Independent power supply of the Detector is provided by power supply
batteries placed inside it’s case: the main one (CR123A) and the backup one
(CR2032). If the main power supply battery is low, the Detector switches over
to the backup power supply source automatically.
1.8 The Detector generates and transmits the following messages:
- «Norm in Loop 1» – under the absence of liquid between the FS contacts
plugged to «Loop 1»;
- «Norm in Loop 2» – under the absence of liquid between the FS contacts
plugged to «Loop 2»;
- «Alarm in Loop 1» – under the presence of liquid between the FS contacts
plugged to «Loop 1»;
- «Alarm in Loop 2» – under the presence of liquid between the FS contacts
plugged to «Loop 2»;
- «Tamper» – under the case tampering or SPM removal from the installation
surface;
- «Failure in Loop 1» under the break of communication bus SPM – FS,
hooked to «Loop 1»;
- «Failure in Loop 2» under the break of communication bus SPM – FS,
hooked to «Loop 2»;
- «Main Power Supply Low Battery» – under the main power supply battery
voltage drop over 2.8
-0.4
V;
- «Backup Power Supply Low Battery» – under the backup power supply
battery voltage drop over 2.8
-0.4
V.
1.9 The Detector is designed to operate continuously, around the clock.
1.10 The Detector provides immunity to electromagnetic interference.
1.11 The level of industrial interference generated by the Detector does not
exceed the norms established for the technical equipment operated in residential
buildings or connected to power mains of residential buildings.
2 Features
Table 1
Features
Value
Assumed number of FSs in an alarm loop circuit, max
2 pcs.
Length of each alarm loop between the FS and the
SPM, max
5 m
Weight:
- SPM, max
- FS, max
0.1 kg
0.03 kg
Operating temperature
minus 20 … +50 °C
Case dimensions:
SPM, max
FS, max
112 x 41 x 32 mm
65 x 22 x 16 mm
IP rating:
- SPM
- FS
IP30
IP67
Average service life
8 years
Battery life under normal climate conditions and speci-
fied broadcast period not more
than 60 sec, not less:
- main power supply battery
- backup power supply battery
60 months
2 months
Figure 2 – Flood Sensor «DZ-3V»
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» – lights up by sending relevant
command from CP and remains active during 15 min or until the case is opened;
- LED indication of the Detector state – lights up and remains unchanged for
15 min after the case is closed under conditions:
- other LED indication types (except the sound alarm) absence;
- alarm «Tamper» message is not generated during this time period;
- the Detector state indication is ON upon the receipt of relevant command
from the CP.
LED indicator modes are listed in the Тable 3.
Тable 3
The Detector Mode
Indication
Note
Binding procedure
finished
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
alternate blinking
on command from
the CP
«Alarm in Channel 1»
«Alarm in Channel 2»
Single-shot LED lights up 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 **
3 Scope of Delivery
Each Detector unit package contains the items Table 2.
Table 2
Name
Qty
Signal processing module «STZ-RK SPM»
Flood sensor «DZ-3V»
CR123A lithium power supply battery
CR2032 lithium power supply battery
Set of accessories:
Screw 3-3x30.016
Nylon wall plug NAT 5x25 SORMAT
Wireless flood detector «STZ-RK». Installation Guide
1 pc.
2 pcs.
1 pc.
1 pc.
6 pcs.
6 pcs.
1 copy
4 Design of the Detector
The external appearance of the SPM is shown in Figure 1.
The SPM comprises a base, a cover and a printed circuit board (PCB).
The front side of PCB (1) comprises: tamper (2), LED indicator (3), connecting
blocks (4) for connecting the FSs, main power supply battery holder (5), «RESET»
contacts (7), sounder (8), antenna (9). The backup power supply battery holder
and the tamper are located on the reverse side of the PCB. The PCB is fixed in
the base of the case by a latch (6) and grips on the reverse side of the base.
The case of the FS is watertight, it is
provided with sensing contacts and a
1.5 m cable for connecting to the SPM.
The FS is designed to be fastened to both
horizontal and vertical surfaces.
Figure 1 – The Base with the PCB
The «DZ-3V» layout is shown in Figure 2.
Red
Black
WA1
XP2
HL1
GB1
+
–
XP1
1
2
3
4
9
6
5
7
8
«DZ-3V»
RESET
+ Line №2- -Line №1 +
