Crowcon Sensitron Multiscan++S1 Gas Control Unit

The Multiscan++S1 is a gas detection control unit designed to meet the broadest range of flexibility required by the market.

The gas panel is certified SIL1 and ATEX following EN 60079-0 and EN 60079-29-1 standards.

The control panel is based on a powerful microprocessor which provides a wide range of self-diagnostic procedures to detect and locate possible faults.

It can manage up to 32, 64, 128 or 256 gas detectors (according to the four different versions). The detectors can be either of addressable type, directly connected on the buses or 4-20 mA analogical types connected via 8-input STG/IN8S remote modules.

The system architecture also provides up to 516 freely programmable Open Collector outputs provided by STG/OUT16S modules, always connected on the RS485 bus. Also, 8 relays onboard the panel are included.

The gas panel can be placed in a 19’’ 6U rack or a plastic box with a 27.6 Vdc 4 A power supply.

Order Information

	MULTISCAN++S1
STMTS/S1-256B	MULTISCAN++S1 gas control panel. 4 x RS485 type open bus lines or 2 closed loops. 256 Analog 4-20 mA gas detectors connected through remote 8-input modules or addressable gas detectors daisy chained to the RS485 control panel’s loops and 8 x 4-20 mA inputs onboard the panel. 8 relay outputs and up to 512 O/C or relay outputs via remote modules. The panel comes complete with 1 parallel printer port and 1 RS232 serial port for PC connection. Housed in an IP65-rated ABS box.
STMTS/S1-256	Rack version of STMTS/S1-256B. The panel comes housed in a 19” 6 U rack (24 Vdc power supply is required).
STMTS/S1-128B	MULTISCAN++S1 gas control panel. 4 x RS485 type open bus lines or 2 closed loops. 128 Analog 4-20 mA gas detectors connected through remote 8-input modules or addressable gas detectors daisy chained to the RS485 control panel’s loops and 8 x 4-20 mA inputs onboard the panel. 8 relay outputs and up to 256 O/C or relay outputs via remote modules. The panel comes complete with 1 parallel printer port and 1 RS232 serial port for PC connection. Housed in an IP65-rated ABS box.
STMTS/S1-128	Rack version of STMTS/S1-128B. The panel comes housed in a 19” 6 U rack (24 Vdc power supply is required).
STMTS/S1-64B	MULTISCAN++S1 gas control panel. 2 x RS485 type open bus lines or 1 closed loop. 64 Analog 4-20 mA gas detectors connected through remote 8-input modules or addressable gas detectors daisy chained to the RS485 control panel’s loops and 8 x 4-20 mA inputs onboard the panel. 8 relay outputs and up to 128 O/C or relay outputs via remote modules. The panel comes complete with 1 parallel printer port and 1 RS232 serial port for PC connection. Housed in an IP65-rated ABS box.
STMTS/S1-64	Rack version of STMTS/S1-64B. The panel comes housed in a 19” 6 U rack (24 Vdc power supply is required).
STMTS/S1-32B	MULTISCAN++S1 gas control panel. 2 x RS485 type open bus lines or 1 closed loop. 32 Analog 4-20 mA gas detectors connected through remote 8-input modules or addressable gas detectors daisy chained to the RS485 control panel’s loops and 8 x 4-20 mA inputs onboard the panel. 8 relay outputs and up to 64 O/C or relay outputs via remote modules. The panel comes complete with 1 RS232 serial port for PC connection. Housed in an IP65-rated ABS box.
STMTS/S1-32	Rack version of STMTS/S1-32B. The panel comes housed in a 19” 6 U rack (24 Vdc power supply is required).
	MULTISCAN++S1 ACCESSORIES
STG/IN4-OUT4-S1	Remote module with 4 inputs 4-20mA and 4 output relays for MULTISCAN++S1.
STG/IN8S	High-safety 8-input remote module with improved performance.
STG/OUT16S	High-safety 16-output remote module (Open collector type) with improved performance.
STG/8REL	Plug and play relay board to be connected to STG/OUT16 to provide 8 relay outputs.
STG/SER++	Additional Serial board for MULTISCAN++S1-64 & 64B.
STG/TCPIP-C	TCP/IP interface for LAN connection.
AL11/276V5	Power supply 27.6 Vdc 5A in Metal cabinet.
STG/BOX	IP55 Plastic box to house one STG/IN8-S or STG/OUT16-S card.
STG/32-85	RS232/RS485 Interface for PC connection on RS485 line of MULTISCAN++.
STMTS/RTU	Din rail mounted remote unit for events visualization. To be RS485 connected to MULTISCAN++S1, PK & MULTISCAN 8+ serial lines; it allows the visualization and identification of events. RTU comes complete with an LCD display to show different information such as alarm or fault, 4 analogue 4-20 mA inputs for detector connection and 5 output relays that are freely programmable.
AL09	24 Vdc power supply for STPL4+D & STMTS/RTU.
STG/IPBOX	IP65 ABS box for STPL4+D & STMTS/RTU.

	Title	Size
	Multiscan++S1 Datasheet	2 MB

Additional information

Weight	0.190 kg

Specifications

Functionalities
Programming	Configuration with Sensitron software
Operating levels	3, set via password
Set / Unset detectors	Possibility of unset one or more channels for field maintenance
Test	Possibility of channels test field
Supervision	Efficient Modbus protocol for system supervision
Event log	The event log can be visualised from the gas panel or by the software
Date and time	Internal clock with backup to keep the date and time even after a shutdown
Visual indications	LCD display
	18 status LEDs
Acoustic indications	Buzzer 60 dB at 1m
Front panel buttons	Numbers from 1 to 9, ENT ESC and four directional buttons
Electrical data
Power supply	Box version: power supply with Vout=27.6 Vdc / Iout=4A, Vin=220 Vac
	Possibility to place two 12V 7Ah batteries.
	Rack version: connect to an external 24Vdc power supply
Absorption	200 mA
Available current	3 A for field connections
	MTS256/128/64: available two auxiliary power supply of 1.1 A each one
	MTS32: available an auxiliary power supply of 1.1A
Input modules	STG/IN4-OUT4-S1: 4 inputs 4-20mA
	STG/IN8S: 8 inputs 4-20 mA
Output modules	STG/IN4-OUT4-S1: 4 relays outputs
	STG/OUT16S: 16 Open Collector outputs, convertible into relays with the
	STG/8REL module
Inputs	8 inputs 4-20 mA on board, additional inputs available via the remote modules.
	Sensitron gas detectors can be also connected directly on RS485 bus. The total inputs number depends on the gas panel model:
	Multiscan++ 256: up to 256 inputs
	Multiscan++ 128: up to 128 inputs
	Multiscan++ 64: up to 64 inputs
	Multiscan++ 32: up to 32 inputs
Outputs	8 relays on board
	Additional outputs available via the remote modules, the total outputs number depends on the gas panel model:
	Multiscan++ 256: up to 516 outputs
	Multiscan++ 128: up to 256 outputs
	Multiscan++ 64: up to 128 outputs
	Multiscan++ 32: up to 64 outputs
Relays contact ratings	10A a 250 Vac main board, 16A 250 Vac IN4-OUT4 and 8REL modules
RS485 ports	Multiscan++ 256/128: 4 RS485 ports
	Multiscan++ 64: 2 RS485 ports expandable to 4
	Multiscan++ 32: 2 RS485 ports
Serial ports	1 x RS232 for programming, supervision and firmware updating
	1 x printing parallel port (only Multiscan++ 256/128/64)
Communication protocol	Galileo or Modbus for field communication
	Modbus for the supervision
Environmental conditions
Storage temperature	-20 / +60°C
Operating temperature	0 / +50°C
Operating humidity	15 / 85% RH non condensing
Box
Material	ABS or aluminium rack
Dimensions	Plastic box 470x426x148 mm r rack 19” 6 units
Weight	Rack version: 4.5 kg
	Box version: 6.6 kg (without batteries)
Cable entry	Box version: 4 preformed holes
Wall fixing	Box version: supplied with 4 mounting brackets
Compliance
EMC	EN 50270:2015
ATEX	ATEX Directive 2014/34/UE
	EN IEC 60079-0:2018
	EN 60079-29-1:2016 + A11:2022
SIL	EN 61508:2010 parts 1, 2, 3, 4, 5, 6, 7
	EN 50402:2017