Crowcon Sensitron Multiscan 8+ Gas Control Unit
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Crowcon Sensitron Multiscan 8+ 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
| Part Number | Description |
|---|---|
| STMTS/S1-256B | MULTISCAN++S1 gas control panel with 4 RS485 open bus lines or 2 closed loops. Supports up to 256 analog 4-20 mA detectors via remote modules or addressable devices. Includes 8 onboard 4-20 mA inputs, 8 relay outputs, and up to 512 outputs via remote modules. Comes with parallel printer port and RS232 port. Housed in IP65 ABS enclosure. |
| STMTS/S1-256 | Rack version of STMTS/S1-256B housed in 19” 6U rack. Requires external 24 Vdc power supply. |
| STMTS/S1-128B | MULTISCAN++S1 gas control panel with 4 RS485 open bus lines or 2 closed loops. Supports up to 128 analog 4-20 mA detectors. Includes 8 onboard inputs, 8 relay outputs, and up to 256 outputs via remote modules. Comes with parallel printer port and RS232 port. IP65 ABS enclosure. |
| STMTS/S1-128 | Rack version of STMTS/S1-128B housed in 19” 6U rack. Requires external 24 Vdc power supply. |
| STMTS/S1-64B | MULTISCAN++S1 gas control panel with 2 RS485 open bus lines or 1 closed loop. Supports up to 64 analog detectors. Includes 8 onboard inputs, 8 relay outputs, and up to 128 outputs via remote modules. Comes with parallel printer port and RS232 port. IP65 ABS enclosure. |
| STMTS/S1-64 | Rack version of STMTS/S1-64B housed in 19” 6U rack. Requires external 24 Vdc power supply. |
| STMTS/S1-32B | MULTISCAN++S1 gas control panel with 2 RS485 open bus lines or 1 closed loop. Supports up to 32 analog detectors. Includes 8 onboard inputs, 8 relay outputs, and up to 64 outputs via remote modules. Comes with RS232 port. IP65 ABS enclosure. |
| STMTS/S1-32 | Rack version of STMTS/S1-32B housed in 19” 6U rack. Requires external 24 Vdc power supply. |
| STG/IN4-OUT4-S1 | Remote module with 4 inputs (4-20mA) and 4 relay outputs 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) |
| STG/8REL | Plug and play relay board for STG/OUT16 providing 8 relay outputs |
| STG/SER++ | Additional serial board for MULTISCAN++S1-64 & 64B |
| STG/TCPIP-C | TCP/IP interface module for LAN connectivity |
| AL11/276V5 | 27.6 Vdc 5A power supply in metal cabinet |
| STG/BOX | IP55 plastic enclosure for STG/IN8-S or STG/OUT16-S modules |
| STG/32-85 | RS232/RS485 interface for PC connection on RS485 line |
| STMTS/RTU | DIN rail remote unit for event visualization via RS485 connection. Includes LCD display, 4 analog inputs, and 5 programmable relay outputs. |
| AL09 | 24 Vdc power supply for STPL4+D & STMTS/RTU |
| STG/IPBOX | IP65 ABS enclosure for STPL4+D & STMTS/RTU |
| 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 |
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