Application:

• Measurement at Superfund sites during remediation
• Monitoring workplace exposure limits

Analyzer

The Series 8900 Analyzer provides direct measurement of Methyl Ethyl Ketone, Chloroform and Carbon Tetrachloride in ambient air. This instrument is utilized for remediation and Super Fund sites and to monitor workplace exposure limits.

The Series 8900 Analyzer for Methyl Ethyl Ketone, Chloroform and Carbon Tetracloride employs a flame ionization detector (FID) as the sensing element. A dual column configuration with timed backflush to vent is used to strip off moisture and heavier hydrocarbons. A precut column is used in series with the analytical column. At sample injection a fixed volume of sample is carried to the pre-cut column. Backflush is timed so that only the Methyl Ethyl Ketone, Cloroform, Carbon Tetracloride and other similar components are eluted to the analytical column. Contaminants on the pre-cut column are backflushed to vent. The chemicals are separated from potentially interfering components on the analytical column and elute to the detector for analysis.

Features

• 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: <120 seconds
Detector: PID
Column: Capillary
Oven Temperature: 70°C, Nominal
Carrier Gas: Nitrogen, 6cc/min, Nominal
Lower Detection Limit: 10 ppb Methyl Bromide
Accuracy: 1% of Full-scale
Precision: 2% of Measured Value
Span Drift (24HR): <2% of Full-scale
Sample Flow Rate: 250-500cc/min, typical

Output:

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: (5) User programmable relays for concentrationm and diagnostic alarms (1A @ 30Vdc). Options for up to 32 additional relays available.
Inputs: Optional digital input board for 3 contact closure inputs. Supports start analysis, start calibration, and analyze calibration gas sample.