HART® Communication Protocol Ensures Reliable Communication with Crowcon’s IRmax Gas Detector

Easy and reliable connection and communication is vital when using a gas detector, which is why Crowcon has introduced the HART Communication Protocol for its IRmax infrared (IR) hydrocarbon detector.

HART® Communication Protocol Ensures Reliable Communication with Crowcon’s IRmax Gas Detector

HART® Communication Protocol Ensures Reliable Communication with Crowcon’s IRmax Gas Detector

The HART (Highway Addressable Remote Transducer) Communication Protocol is the global standard for sending and receiving digital information across analog wires between smart devices and control or monitoring systems. More specifically, it is a bi-directional communication protocol that provides data access between intelligent field instruments like gas detectors and host systems. A host can be any software application, from a technician’s hand-held device or laptop to a plant’s process control, asset management or safety system using any control platform.

The HART Communication protocol is available with the IRmax in two formats:

1.    Local hand-held communicator connection. In this format, HART communicators are used on industrial sites for maintaining and calibrating a host of instruments. The key benefit is that site maintenance staff can use a common communicator to maintain all of their safety and process instruments. The user simply needs to upload and install the DD (Device Description) file to their communicator to access a wide range of IRmax functions and displays, alarm thresholds and diagnostic information.

2.    HART over a 4-20mA signal line. In this format, the safety function is performed by the 4-20mA signal (connected to a conventional controller or PLC/DCS). A HART device can then also be connected in parallel with the signal connections to read the detector’s status information.

Featuring dual-wavelength IR sensor technology in a rugged 316 stainless steel package, the ultra-compact IRmax is designed to detect methane gas and other potentially explosive hydrocarbons in the harshest conditions.

As the IRmax contains no components for artificially heating optical surfaces, power consumption is dramatically reduced. It requires less than 1 Watt of power, typically 75-90% lower than conventional IR gas detectors. A gas detection system using IRmax detectors therefore requires smaller (and lower cost) power supplies and battery back-up systems. Longer cables can also be used and more detectors can be powered on addressable networks.

Unlike conventional IR gas detectors, the IRmax does not utilise heaters to prevent condensation on windows and mirrors. Instead, its optical components are treated with a highly durable hydrophobic coating called STAY-CLIR that completely prevents signal faults due to condensation.

Contact details for Crowcon’s distributor in India:
Kishore Degwekar, Managing Director
Detection Instruments Pvt. Ltd.
Plot No. El-36, Electronics Zone
TTC Industrial Area, MIDCl – Mahape
Navi Mumbai 400 710
India
Tel: 022 2761 7663 / 64 / 65 / 66, Fax: 022 2761 2103
E-mail: general@detection-india.com / sales@detection-india.com
Website: www.detection-india.com

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Ocean Thin Films Appoints Indian Distributor

Photonics Marketing Company (PMC) to manage Pan-India projects

Ocean Thin Films (OTF) has named Photonics Marketing Company (PMC) its distributor in India. PMC will work alongside OTF’s Indian staff to provide additional local contacts for the sales and service of the company’s custom thin film optical product design and engineering expertise in the rapidly expanding Indian market. PMC will also be handling OTF’s SpectroCam Multispectral Imaging range of products, which offer a sophisticated, flexible platform for development and deployment of various MSI applications.

Based in Mumbai, PMC is a dealer representative for high-tech photonics products. The company has experience in system integration for applications including PL measurement, IPCE mapping, photovoltaic solar cell characterization, LED measurement, and uniform light sources. The company’s director, Atulya Sahay, has more than 15 years’ experience in Opto-mechanical, Opto-electrical sales and service.

PMC can be contacted by phone on +91-22-32657126 or by e-mail at info@photonics-marketing.com.

Company contact in India:
Bhushan Dhakras
Halma Trading and Services India Pvt. Ltd.
201 Hyde Park, Saki Vihar Road
Powai, Mumbai, Maharashtra, 400 072
Tel: 022 6708 0400, Fax: 022 6708 0415
Mobile: 99300 21866
E-mail: bhushan.dhakras@oceanthinfilms.com
Website: www.oceanthinfilms.com

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Tritech Launches Renewables Mammal Detection System

Tritech has expanded its industry-standard sonar range with a key renewables device by launching its Gemini SeaTec Mammal Detection System, providing a valuable tool in the detection of marine life around subsea turbines.

SeaGen tidal turbine, installed in Strangford Lough, County Down, Northern Ireland, (image courtesy of Marine Current Turbines (MCT)

SeaGen tidal turbine, installed in Strangford Lough, County Down, Northern Ireland, (image courtesy of Marine Current Turbines (MCT)

Tritech’s subsea sonars have been deployed on marine current structures since 2008 when the company made its first step into the offshore renewables sector. Tritech has now developed its real-time multibeam imaging sonar technology for this market.

The Gemini SeaTec system uses Tritech’s industry standard Gemini 720id multibeam sonar and its bespoke image detection software. This innovative software subsequently provides an early warning of the presence of sea mammals in the vicinity of marine current turbine structures. The Gemini SeaTec provides real-time monitoring of marine wildlife, allowing the operator to take corrective action as required. The logged data can be stored for analysis and used for environmental assessment as part of the current turbine development process.

Gemini sonar image of a Sea Lion

Gemini sonar image of a Sea Lion

The Gemini SeaTech is currently installed on SeaGen, a tidal turbine, in Strangford Lough, County Down, Northern Ireland. Tritech has worked closely with the commercial arm of the Sea Mammal Research Unit (SMRU Ltd) at St. Andrews University and tidal energy company Marine Current Turbines (MCT) to help develop the Gemini SeaTec system.

Dr Gordon Hastie, at SMRU Ltd, comments: “As part of our continuing role providing research and advice to the tidal stream energy industry, we have been monitoring data produced using Tritech’s sonar systems and in the last 3 years they have played a very important role in protecting marine mammals from any potential threats. We are currently investigating the next generation of marine mammal detection sonar technology using Tritech’s advanced multibeam techniques and we hope that these will allow operators to monitor and mitigate potential threats to marine mammals far more efficiently than was possible in the past. These automated sonar tools are likely be essential for the continued protection of marine life during current turbine developments.”

Further applications for Gemini SeaTec include; survey of pre/ post cable lay survey operations, subsea monitoring and inspection and scour monitoring.

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Ocean Optics Adds Scientific-grade Spectrometer with Enhanced VIS-NIR Response

High-sensitivity spectrometer is ideal for wide range of VIS-NIR applications

The Maya2000 Pro-VIS-NIR from Ocean Optics is a back-thinned 2D FFT-CCD spectrometer with high sensitivity, 80% peak quantum efficiency and excellent VIS-NIR response. The Maya2000 Pro-VIS-NIR is ideal for low light-level applications such as Raman, as well as for analysis of gases used in semiconductor processing and measurement of biological samples in the life sciences.

Ocean Optics Adds Scientific-grade Spectrometer with Enhanced VIS-NIR Response

Ocean Optics Adds Scientific-grade Spectrometer with Enhanced VIS-NIR Response

The Maya2000 Pro-VIS-NIR has a low-etalon, scientific-grade detector that provides high quantum efficiency from ~400-1100 nm. Other features include triggering functions for providing accurate timing and synchronization between the spectrometer and other devices. Three low-jitter trigger modes and normal (free-running spectral acquisition) operating modes are possible. Applications include pulsing a light source when acquiring a spectra and synchronizing spectral acquisition to coordinate with samples moving through a process stream or sensors reaching a certain temperature level.

In addition, Maya2000 Pro-VIS-NIR supports RS-232 communications and has a 30-pin connector and 10 user-programmable digital I/Os. Its enhanced onboard programmable high-speed FPGA controller enables triggering and provides other performance advantages.

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