Formerly
The Series 8900 Methyl Bromide Monitoring System provides an automated, direct measurement of Methyl Bromide in ambient air. This instrument can meet and exceed the requirements for ambient methyl bromide monitoring. It is utilized in fumigation facilities and industrial plants to detect potential worker exposure to methyl bromide, resulting from mechanical failure, human error or product off gassing. Multipoint sampling options allow the analyzer to monitor multiple sample locations for greater coverage.

The advantage of this system is that is both specific and sensitive to low levels of methyl bromide from less than 0.05 ppm and greater than 20ppm. It provides automatic calibration to verify accuracy. Multi level alarm setting and software for data collection and report generation is also included. RS-232 and LAN connections can be set up for a local graphic PC display and control as well as remote graphic data display by any PC on the network.

The Series 8900 Methyl Bromide Analyzer uses a photoionization detector (PID) for exceptional sensitivity. To be specific to methyl bromide, a pre-cut column is used with an analytical column and a timed backflush to strip off moisture and heavier hydrocarbons. Methyl Bromide is physically separated from potentially interfering components on the analytical column and quantified by the detector.
Unit of Measure

Applications

N/A Monitoring workplace exposure limits in fumigation facilities.

Features

N/A

  • Direct measurement of Methyl Bromide
  • Interference free response
  • Automatic calibration for unattended operation
  • Automatic baseline adjustment for long-term stability
  • Analog output ranges are user selectable
  • Multipoint sampling options
  • Summary or TWA report generation
  • Graphic display of current or historical concentrations
  • Relays for external alarms and diagnostics
  • RS-232 and optional LAN

  • Specifications

    Analysis Time

    N/A <120 seconds

    Detector

    N/A PID

    Column

    N/A Capillary

    Oven Temperature

    N/A 70ºC, Nominal

    Carrier Gas

    N/A Nitrogen, 6 cc/min, Nominal

    Lower Detection Limit

    N/A 10 ppb Methyl Bromide

    Accuracy

    N/A 1% of Full-scale

    Precision

    N/A 2% of Measured Value

    Span Drift (24HR)

    N/A <2% of Full-scale

    Sample Flow Rate

    N/A 250 - 500 cc/min, typical

    Output

    N/A Analog: (1) 0-20ma or 4-20ma loop power supplied, isolated. Selectable for: gas concentration, unintegrated detector signal. Options for up to 20 additional programmable 0-20ma, 4-20ma or voltage outputs: 0-1V, 0-5V, or 0-10V.
    Digital: RS-232, optional Local Area Network

    Relays

    N/A (5) User programmable relays for concentration and diagnostic alarms (1A @ 30Vdc). Options for up to 32 additional relays available.

    Inputs

    N/A Optional digital input board for 3 contact closure inputs. Supports start analysis, start calibration, and analyze calibration gas sample.