10 Gas Detection Flexible and Future-Proof New Gas Detection Control System
The Dräger Regard 7000 is a state of the art modular control system for monitoring various gases and vapours. Its fl exible expandability ensures long term viability for gas detection systems of increasing complexity. In addition, it is backward compatible with previous Regard systems.
Dräger designed the Regard 7000 for a wide range of applications and confi gurations. It processes analog transmitter input signals supporting remote access via HART (Highway Addressable Remote Transducer) in the near future. HART simplifi es installation, confi guration, maintenance, and documentation of the gas detection system. A Modbus RTU output is available for retransmitting gas detection data to higher-level systems. The most demanding alarm logic sequences can easily be programmed, such as delays for process optimisation.
The system architecture of the Regard 7000 prevents the entire system from failing if one component fails (single point of failure). In addition, it is easy to add independent subsystems. False alarms are effectively reduced by optimised signal conditioning fi lters, manual alarm suppression, and the automatic comparison of analog and digital transmissions. Special analogue transmitter signals such as errors or warnings are indicated as text messages, making them easy for anyone to identify. A simple, easy to read menu layout with user-friendly icons simplifi es operation and increases your plant’s safety.
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41948pr@reply-direct.com Innovative Hybrid Gas Detector
Sensitron has developed the innovative Hybrid gas detector, Atex and SIL2 (3) approved. In the gas detection for tough environments is now available an innovative alternative which compares the signals received from two different sensors (Pel+IR) installed in a single head setting the improper alarms apart. The Sensitron’s SMART S-IR is an innovative concept in the gas detection for the Premium Safety market. The detector uses a hybrid technology sensor (Pel+IR) installed in a single head. The behaviour of the sensors is constantly monitored by a microprocessor and the incoming signals are compared in order to supply an output corresponding to the worst situation revealed in the shortest time: it guarantees the highest accuracy with false alarm conditions close to zero. The other important features of the SMART S-IR are: a non-intrusive calibration; 3 wires 4-20mA output with a further three relays output and the HART communication module (optional). The SMART S-SS and the SMART S-MS belong to the same family. The SMART S-MS is a double-head detector and two different sensors (Pel-IR; IR-IR; Pel-Electrochemical; Electrochemical-Pel) can be installed on it. It guarantees two different independent outputs that can be compared. The detectors are SIL 2(3) certifi ed in compliance with EN50402/EN61508. Visit our website at
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Advanced Multifunction Gas Detection System
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are implemented to detect and localise possible faults. The redundancy offered by every module being part of the system, added to the possibility to communicate with remote input/output modules via a redundant closed BUS, makes this system comply with the Functional Safety requirements up to SIL3. The GALILEO SMS consists of a control unit, used for monitoring and controlling, connected to an optional number of Analogue Input Modules (AIM), LOOP modules and RELAY modules. The system will be connected in two digital RS485 (EIA-485) type closed loops capable of accommodating a maximum of 256 gas detectors connected as addressable gas detectors type SMART3G or SMART3 “S” connected via 32 input loop modules or analogue 4-20mA detectors connected through 8-input AIM (Analogue Inputs Modules), and a maximum of 520 relay outputs connected as 512 programmable relays on the Relay Outputs modules (8-16 relays module, basic and extended respectively).
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The GALILEO SMS (SIL Multisystem), from Sensitron, is an advanced multifunction gas detection control panel designed to comply with the SIL (Safety Integrity Level) requirements, according to the European Standard EN 50402 and IEC 61508 on Functional Safety. The functional safety is aimed at supervising and managing the behaviour of an overall system in case of failures. To assure a full redundancy, the control unit’s main board is designed around 2 powerful microprocessors that communicate to each other the monitored data, ensuring the complete availability of all main board functions even in the case of a failure in one microprocessor. A broad range of self-testing facilities
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New Slide-on Pump Allows Workers to Use One
Gas Detector for Multiple Applications
Industrial Scientifi c, is pleased to introduce a new version of the Ventis™ Slide-on Pump. The new pump is compatible with both Ventis™ MX4 and Ventis™ Pro Series Multi-Gas Monitors and is ideal for workers who typically wear their gas monitors for personal protection but occasionally require a pump for confi ned space entries or remote sampling applications. The Ventis Slide-on Pump reduces the need for workers to carry two or more gas detection instruments at one time.
Additional benefi ts of the Ventis Slide- on Pump include:
• Convenient sampling – Draw air samples from up to 50 feet away
• Easy set up – No tools are required to attach or remove the pump from the monitor
• Interchangeable batteries – Monitors and pumps use the same type of battery packs and chargers making them easy to exchange
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“The Ventis Slide-on Pump gives workers more fl exibility in the fi eld,” said Josh Futrell, senior product manager, instrumentation. “Making it compatible with the Ventis Pro, one of the most versatile, user-friendly instruments available, is a great step toward keeping workers focused on the job at hand rather than managing excess safety equipment.”
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7675ad@reply-direct.com IET May / June 2017
www.envirotech-online.com
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