38 Environmental Analysis New Triggering and Interface Options Added for Spectrometer
Ocean Optics (Netherlands), has added triggering functions to its Maya2000 Pro back-thinned CCD miniature spectrometer to provide accurate timing and synchronisation between the spectrometer and other devices. Three low-jitter trigger and normal operating modes are now possible. Applications include pulsing a light source to occur when acquiring a spectra and synchronising spectral acquisition to coordinate with samples moving through a process stream or sensors reaching a certain temperature level.
In addition to triggering, Ocean Optics has enhanced Maya2000 Pro performance with support for RS-232 communications and improved optoelectronics that increase dynamic range (to 15000:1), lower trigger jitter (to 100 ns) and decrease dark noise (to 6 RMS counts).
Triggering provides precise timing between devices. The Maya2000 Pro can be triggered so that sending the spectrometer a pulse causes it to do something such as turn off or on a light, activate a pulse in a pulsed light source or start or end spectral acquisition in the spectrometer. For example, in the External Triggering mode, an event outside the sampling system (such as a button push, lever activation or laser) electronically pulses the spectrometer’s trigger pin and starts acquisition of the spectra with microsecond accuracy.
The Maya2000 Pro 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. Available operating modes are Normal (spectrometer continuously acquires spectra) and the three trigger modes:
External Hardware Level Trigger. The spectrometer waits for a sharp rise in voltage on the trigger input pin, and then acquires spectra until the voltage is removed. External Synchronous Trigger. Spectrometer acquires data from an external trigger event (such as a push button) until the next time the trigger is activated, at which time the
spectrometer ceases spectral acquisition and begins a new acquisition. Integration time cannot be set, and is the effective period between triggers.
External Hardware Edge Trigger. The spectrometer waits for a sharp rise in voltage on the trigger input pin, and then acquires one spectrum. One spectrum will be acquired for each trigger unless an acquisition is already in progress.
The Maya2000 Pro is a back-thinned 2D FFT-CCD spectrometer with high sensitivity, 75% peak quantum efficiency and excellent UV response. Maya2000 Series spectrometers are ideal for low light-level applications such as fluorescence, DNA sequencing and measurement of certain biological samples. The spectrometer can be used in the VUV (to ~150 nm) with the addition of a nitrogen purgebox to help lessen the absorption of water and oxygen in the VUV.
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Deutschmann Automation Now Represented in India
126 Nitrogen Generator for LCMS
The NM-3G Nitrogen Generator is designed specifically for use with any LC/MS instrument. This Premium model offers safeguards that are unique to Peak Scientific (UK) generators and effectively deliver reassurance and confidence for critical functions.
Peak scientific have introduced the NM-3G Nitrogen Gas Generator. The NM-3G Nitrogen Generator has been specifically designed to operate LCMS manufactured by Waters Corporation, Thermo Fisher Scientific, Agilent Technologies, Shimadzu, Bruker and similar, producing the required flow rates, purities and pressures to cater for the requirements of this application.
Extensively tested under supervision of Peak and LCMS Manufacturers, the NM-3G has been approved to supply Nitrogen to their LCMS Applications.
The NM-3G generates Nitrogen through the application of ‘Membrane Technology’. Nitrogen membranes separate gases by the principle of selective permeation across the nitrogen membrane wall. “Fast” gases permeate through the nitrogen membrane wall more readily than “slow” gases, thus separating the original gas mixture into 2 streams. The purity of the desired streams can be adjusted depending on operating conditions. Internal air compressors further make the NM-3G a stand- alone, self- sufficient Nitrogen Generator, independent from external air sources.
Peak Scientific will be exhibiting at The 12th China International Petroleum & Petrochemical Technology and Equipment Exhibition (CIPPE 2012), March 19 - 21, 2012. To find out more, please visit Peak Scientific on the UK Pavillion, booth W1730G.
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Deutschmann Automation (Germany), a manufacturer of gateways for industrial fieldbus and Ethernet communication systems, now has a new distributor, Ambetronics, representing the company in India. Ambetronics has been developing and distributing analysis instruments, microelectronics, and system solutions for process automation applications for 14 years and is one of the Indian market leaders in its field. Today, the ISO 9001- 2008-certified, Mumbai-based company exports its products internationally and supplies mechanical engineering companies and as well as customers from the pharmaceutical, food, chemical, petrochemical and textile industries. Deutschmann has trained Ambetronics employees in Germany for the distribution of UNIGATE gateways and related support.
“We are pleased to have won an automation company as highly renowned as Ambetronics as a distributor”, Michael Reiter, Managing Director at Deutschmann Automation, says. “Now we can provide first-rate service and support to our customers and UNIGATE users in India, too.” Ambetronics distributes the complete UNIGATE range which includes ready-to-install UNIGATE IC bus nodes, the UNIGATE CL line of DIN rail protocol converters, and UNIGATE CX network gateways. Deutschmann’s UNIGATE IC bus node series provides manufacturers with a flexible multiprotocol solution. UNIGATE CL gateways in DIN rail housing feature a serial interface by which they connect automation components or network devices without the necessary interface to the respective fieldbus or Industrial Ethernet system. UNIGATE CX gateways, which integrate two UNIGATE CL modules each, connect networks based on different protocols. The gateways are available for almost all leading fieldbus and Industrial Ethernet systems. They are continuously adapted to the changing standards.
Reader Reply Card No. 129 AET Annual Buyers’ Guide 2012
www.envirotech-online.com 127
New Data Logger for Humidity,
Temperature, CO2 and Air Pressure The new HUMLOG20 data logger from E+E Elektronik (Austria) does not need to hide in any application. The elegant housing and the large display make the data logger a real attention-grabber. The current measurement values can be read off easily thanks to the large display, even from a distance of several metres.
The excellent price-performance ratio and the corresponding optics make the HUMLOG20 the optimal choice for numerous applications. Typical fields of
application include the monitoring and recording of humidity, temperature, CO2 and air pressure in museums, conference rooms or classrooms as well as climate monitoring in clean rooms, greenhouses,
storage rooms or calibration laboratories.
The HUMLOG20 data logger offers multiple customer benefits; seamless data logging over a period of more than a year is possible thanks to the long battery life and a memory capacity of 3.2 million measurement values.
The current measurement data are always available in the network, as the data logger is compliant with the network thanks to the integrated Ethernet interface. The data can be queried, displayed and saved on a PC in real time.
A simple analysis and visualisation of the measurement data is possible with the SmartGraph3 software included in the scope of delivery. In addition, a fast response to possible deviations is supported by a visual and acoustic alarm function.
Reader Reply Card No. 128 When
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Environment al Technology please tell them where
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