MT4299E Rev.1
15/10/2019
Pagina 5 di 55
1) INTRODUCTION
The SPS MU+PK gas detection system for car parks is made up of the
MU+16-PK
control panel and
SMART-P
detectors, specifically designed to meet
EN50545-1
European standards. Other detectors can be connects (i.e.: Sensitron Smart3 NC)
with 4-20 mA output via 8-input ST.G/IN 8 PK module.
Detectors can be addressable (Smart P) and thus directly connectible in buss, or 4-20 mA
analogue type, connectible via 8-input remote STG/IN8-PK modules.
The unit allows for three alarm thresholds to be set for each detector. The alarm threshold
activation mode changes according to the type of gas detection profile and connected detector:
There are two alarm threshold modes: Average thresholds and Real-time (Fixed) thresholds.
For the LEL Profile (for explosive gas detectors), only real-time thresholds can be set.
For the Toxic Park Profile, both real-time and average thresholds can be set.
For the Toxic Park EN50545-1 Profile, only average thresholds can be set.
System architecture also includes 6 on-board relays and the possibility to expand outputs up to
32 using remote STG/OUT16-S modules and 8-relay boards.
The unit is inserted in a plastic box complete with 27 Vdc 4 A power supply.
1.1)
System block diagram with Mu+16-PK control panel
BUS 1
BUS 2
(1)
(4)
(3)
(2)
(5)
(6)
(4)
(1) RILEVATORI GAS ANALOGICI 4-20 mA / 4-20 mA ANALOG GAS DETECTORS
(2) MODULO 8 INGRESSI ANALOGICI ST.G/IN8-S / ANALOG 8 INPUT MODULE
ST.G/IN8-S
(3) CAVO 2 FILI TWISTATI PER Rs485 + 2 FILI PER ALIMENTAZIONE (12-24 Vdc) /
2 TWISTED WIRES FOR THE Rs485 BUS + 2 WIRES FOR THE POWER SUPPLY (12-24 Vdc)
(4) RILEVATORI GAS CON USCITA SERIALE Rs485 / GAS DETECTORS WITH Rs485 OUTPUTS
(5) MODULO 16 USCITE O/C ST.G/OUT16 / 16 O/C OUTPUTS MODULE ST.G/OUT16
(6) MODULO 8 RELE’ ST.G/8REL / 8 RELE’ ST.G/8REL MODULE
16 O/C
MUL+ PK 16 CONTROL PANEL
E’ possibile realizzare il sistema con
1 BUS aperti oppure 1 BUS chiuso
It is possible to make the system with
2 open BUS or 1 closed BUS
