The system offers a measurement range from 0.0001 mg/m³ (0.1µg/m³) to 400 mg/m³. The instrument can also be used for atmospheric visibility measurements over a range of scattering coefficients (0.00015 to 600 km-1. An auto-ranging digital display provides real-time and time-averaged concentrations. For either manual or preprogrammed/automatic zeroing of the monitor, an electronically controlled latching solenoid valve is used, and on-screen diagnostic indicators and automatic shut-off are employed to help ensure the monitor's correct operation and data storage.
This unit provides continuous digital out by means of a RS232C data port as well as analog output, and a switched output for selectable high-level alarm with a built-in audible signal. An 8eight-line LCD screen can display real-time and date, time-weighted average concentrations, elapsed run times, operating parameters, and diagnostic information.
<%=company%>c, 7 Oak Park, Bedford, MA 01730; phone: 617-275-1919; fax: 617-275-2121