Mercury Analyzer
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The Jerome® 431 mercury vapor analyzer uses a patented gold film sensor for accurate detection and measurement of toxic mercury concerns for applications such as industrial hygiene monitoring, mercury spill clean up and mercury exclusion testing. Simple, push-button operation allows users to measure mercury levels from 0.003 to 0.999 mg/m3 in just seconds.

SPECIFICATIONS

Resolution
Detection
Operating
Precision
Accuracy
Warranty
0.001 mg/m3
Range 0.003-0.999 mg/m3
Environment 0-40°C Non-Condensing, Non-Explosive
5% Relative Standard Deviation at 0.100 mg/m3
±5% at 0.100 mg/m3
1 year, factory parts and labor
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The Jerome® 431-X mercury vapor analyzer uses a patented gold fi lm sensor for accurate detection and measurement of toxic mercury concerns for applications such as industrial hygiene monitoring, mercury spill clean up and mercury exclusion testing. Simple, push-button operation allows users to measure mercury levels from 0.003 to 0.999 mg/m3 in just seconds.

The gold fi lm sensor is inherently stable and selective to mercury, eliminating interferences common to ultraviolet analyzers, such as water vapor and hydrocarbons. When the sample cycle is activated, the internal pump in the 431-X draws a precise volume of air over the sensor. Mercury in the sample is absorbed and integrated by the sensor, registering it as proportional hange in electrical resistance. The instrument computes the concentration of mercury in milligrams per cubic meter or nanograms, and displays the fi nal result in the LCD readout. An improved fi lm regeneration circuit in the 431-X makes the sensor last even longer than earlier models.

Additional accessories are available to customize the Jerome® 431-X to meet individual application needs. An optional communications confi guration allows data logging, computer interface, and dosimeter analysis capabilities. For data acquisition during portable surveys, a Jerome® data logger plugs into the 431-X. Using Jerome® Communications Software (JCS), the analyzer and data logger download recorded data to a computer for analysis, printout, and permanent record storage. The software can also program the instrument for stand-alone monitoring. If the sensor becomes saturated while the 431-X is attached to the data logger or computer, the analyzer automatically egenerates the sensor and then resumes sampling. Jerome® gold coil dosimeters, used in conjunction with a low-fl ow pump and a communications-confi gured 431-X, provide time-weighted averages for personal mercury exposure. Analysis is quickly performed in-house with these reusable dosimeters. They can also be used as collection devices for applications such as gas stream analysis.

An available internal option board allows auto-zeroing, DC power operation, timed regeneration, and timed sampling during prolonged, unattended samplin gperiods. The option board also allows external fresh air solenoid support and 4-20 mA or 0-2 V analog output. A molded hard carrying case or soft fi eld case give added versatility and organized storage for the instrument and its accessories.

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