The Grimm Model 1.105 Dust Monitor consists of an omnidirectional sampling head, a sample inlet tube connected to a volume-controlled pump, and a PTF filter, where all the sample is collected for gravimetrical and/or chemical analysis.
The sample passes through an optical chamber containing a laser diode and lenses and sheath air to keep the chamber clean. When particles pass this beam they scatter light. These signals are collected by a photo diode detector and classified by a multi-channel pulse height analyzer for size classification. The results are stored in the data logger, displayed, and transferred to PC.
Grimm Technologies, Inc., 9110 Charlton Place, Douglasville, GA 30315. Tel: 770-577-0853; Fax: 770-577-0955.