All three airborne gammaray spectrometers features:

• 256 / 512-channels
• Digital Peak Detection
• Real-time linearization and gain stabilization
• Insignificant Dead Time
• Stabilization time of less than 30 seconds on the ground
• Individual detector processing
• Permits individual detector or summed detector recording
• Completely automated field calibration, no radioactive samples are required.
• High level of self-diagnostics
• Extremely wide dynamic range
• PEICalib calibration software provided with all 3 models

The GRS-10 / GRS-2 systems are intelligent, self calibrating Gamma Ray spectrometers using NaI (Tl) large volume detector arrays. They are used for natural and man made radiation contamination detection. Simple serial (RS-232) communications protocol allows them to be connected to any PC compatible computer system. All dedicated electronics modules are housed within the detector container. By virtue of application software any personal computer may be transformed into a sophisticated Gamma spectrum analyzer.

The GRS-10 / GRS-2 series of gamma spectrometers are widely used in geological and geophysical exploration and mapping as well as in environmental and nuclear surveillance.

Individual, independent, detector processing provides real time gain and linearity correction. PEI's ongoing research to improve the system stabilization algorithms make these spectrometer systems fully automated and self stabilizing on natural radioactive elements. This eliminates the requirement for regular, time consuming,and frequent system checking and re-calibration by the user. Furthermore it provides excellent accuracy and reliability of the gamma measurements.

Specially developed software algorithms provide results in absolute units of contamination and dosage automatically corrected from acquisition altitude to ground level equivalents. Individual crystal detector signal processing provides an accurate control over each contributing sensor providing the user with the best possible spectra alignment for the complete system. New design techniques for the peak detection electronics almost completely eliminate 'pulse pile up' and 'Dead Time' effects.

AGRS-10E Advanced Gammaray Spectrometer

Detector

NaI(Tl) volume 0.35 l, 76 x 76 mm (3”x3”), with bi-alkali PMT

Resolution better then 7.5% FWHM at 662 keV.

High voltage

Supply range 500 – 1000 V digitally controlled

Output

Positive impulses, rising time better then 0.5 μs

Amplitude linear range max +2.5 V

Bipolar Shaping, time constant 1 μs

Gain

Coarse gain: HV controlled

Fine gain: +/- 3 % in 1000 gain steps

Spectrum stabilization

Two point – offset and gain correction, 662 keV typ. at ch. 220

Precision +/- 0.1 ch.

ADC

Approximation, double buffered, high speed and high linearity

Conversion time 1.5 μs

1024 channels down sampled from 65535

Digitally adjustable ADC zero +/- 80 mV

Digitally adjustable LLD range from 2nd – 30th channel

Automatic Dead time correction, precision better 0.25%

Nonlinearity

Integral max 0.1% of full scale within 95% of range

Differential max 3% of full scale within 95% of range

Communication interface

USB

Reference source

137Cs - 9 kBq (0.25 μCi)

Power consumption

Power over USB, max 100 mA

Shielding

Lead, minimal thickness 85 mm, optionally steel

Environmental

Operating temperature range 0°C to +40°C

Storage temperature range -20°C to +70°C

Size and weight

HxWxD 770 mm x 360 mm x 620 mm

Weight 580 kg

Software requirements

Operating System Windows 2K, XP or Linux with

Kernel 2.6

Firebird SQL 2.0, Multiplatform (Windows, Linux)

FEATURES

• Sensitivity Accurately measure

the radioactivity in a given

sample utilising a high

sensitivity NaI(TI) scintillator.

Measurement sensitivity

0.02 Bq/g

• Multichannel Analyser Self

contained 1024 channel pulse

amplitude analyser

• Speed Full sample analysis in

only 5 mins

• Ease of use With little training

the operator can use the

graphic menu driven interface.

• Calibration Optimised

calibration eliminates long

calibration times.

• Integration All data stored in

multiplatform open source SQL

database to allow easy

integration into customer’s

own systems

IR5500 Open Path Gas Monitor

The Model IR5500 is an open path IR gas detector that provides continuous monitoring of methane and propane gas concentrations. The system consists of an IR source and receiver which continuously monitors for methane in both the 0 to 5000 ppm•meter and 0 to 5 LEL•meter range. A 0 to 2000 ppm•meter and 0 to 1 LEL•meter range is also available for monitoring propane. The IR5500 provides two 4 to 20 mA analog signals proportional to each of the above ranges, in addition to a digital display and relay contacts. CSA, FM, ATEX, IECEx, CE Marking, GOST approved. SIL 3 suitable.

IR5500 FEATURES AND BENEFITS
Dual detection ranges	Sensitive to both small (ppm•meter) and large (LEL•meter) gas leaks
Performance approved	Ideal for use in harsh environments
Single detection beam	Improves accuracy and reduces drift
Continuous self-check	Fail-to-safe operation
Multiple communication outputs (HART, Modbus, AMS support)	Provides complete status and control capability in the control room
Unitized display	Ease of operation, reduced cost
Automatic gain control	Compensates for dirty optics, rain, and fog

IR5500 data sheet
IR5500 manual
IR5500 HART manual 
IR5500 Modbus manual
IR5500 safety manual 
IR5500 Device Descriptor files

Gas Analysers

Witt gas analysers are fast, precise and multifunctional. They are used as stationary or portable units for sample or continuous gas analysis for almost any gas and application, for example in food (MAP) or steel industry.

Intuitive and easy handling is provided by intelligent operating controls. State-of the art sensors and intelligent software solutions guarantee accurate measurement results and secure the quality of your processes.

To suit your applications, the gas analysers can be delivered as stand alone units or integrated in gas mixing systems.

For a customised solution according to your requirements, please contact us for a quotation.

 

	OXYBABY® - Mobile handheld gas analyser
	PA - Compact and multifunctional gas analyser
	MAPY 4.0 - Multifunctional premium gas a

Toxic Gas Analyzers

Light and rugged, Bacharach's family of hand-held digital analyzers measure toxic gases or oxygen. Quickly measure and display levels of oxides of nitrogen (NOx), sulfur dioxide (SO₂), carbon monoxide (CO) or oxygen (O₂) more accurately, efficiently and economically. Just turn on the instrument, zero it and insert the probe into the stack or air being sampled. The analyzer will continuously measure and display readings of a specific gas. Single gas analyzers operate on four replaceable C-size batteries for approximately 14 continuous hours of operation. Portable; lightweight plastic; durable; impact resistant case that withstands fuels and other corrosive liquids; highly visible LCD display with backlighting; in-line water trap for combustion applications. 

Analyzers

O₂-Measuring Device SGM5

Precision measuring device for the determination of oxygen traces in inert and process gases

O2-Measuring Device SGM7

Compact measuring device for the determination of oxygen residues

Special Measuring Systems

Measuring devices for special problems.
Using after intensive consulting by manufacturer

Hydrogen measuring device TCS

Compact measuring device for the determination of hydrogen in inert and process atmospheres

Hydrogen Analysis in steel and metals: Solid Extraction or Fusio

Jérôme Barraqué
Jobin Yvon S.A.S., 16-18 rue du Canal, 91 165 Longjumeau, France
Keywords: hydrogen analysis, steel, metals, fusion, extraction, diffusion

1.  ITRODUCTION

The JY HORIBA EMGA 621W Hydrogen analyzer
has been designed for accurate measurements of
hydrogen content in different sample types such
as ferrous metals, non-ferrous metals, semiconductors or electronic materials. The hydrogen
content is extracted by fusion of the sample in
inert gas and analyzed by a high sensitivity thermal conductivity detector. It is also possible to
avoid fusion and extract hydrogen content in the
sample by heating below the melting point. The
purpose of this note is to explain when to use
fusion or solid extraction, the benefits, the applications and samples.

2.  Principle of the EMGA 621W

The sample is placed in a graphite crucible. The
crucible is maintained between the higher and
the lower electrode of the impulse furnace. A
high current passes through the crucible creating
an increase of the temperature. The gas generated in the furnace is analyzed by the thermal conductivity detector after dust and moistur

Toxic Analyzer

GOW-MAC’s Series 900 Toxic Gas Analyzer is a highly selective and precise analytical instrument engineered for quantifying trace amounts of toxic gases in industrial gas applications.

The principle of this automated, fully digital instrument is based on aqueous scrubbing of the target gas by a coil sampler coupled with a gas-liquid separator, followed by derivatization of the analyte to form a highly light-absorbing chromophore in an on-line reactor. The derivative then is quantified by a colorimetric detector.

Any gas species with potential to be derivatized can be determined by the Series 900 Toxic Gas Analyzer; e.g.: HF, NH3, H2CO, HONO, HCl, SO2, H2S, HCHO and aldehydes, etc. The analyzer is not only able to determine trace level toxic gases in air, but also to quantify the ppb/ppm level impurities in industrial processing and electronic gases, such as N2, N2O, NF3, CxHy, etc. Custom applications based on your specific needs are available for evaluation by request.