940-3 On-line (Snowplow) Monitor

The detector measures gross gamma radiation in the process fluid, amplifies and shapes the pulse output from the photomultiplier tube and transmits the signal to the Universal Digital Ratemeter. The ratemeter may be locally mounted or remotely located up to 1500 feet. The ratemeter displays measured radiation in CPM. The ratemeter also provides output alarm contacts for Alert, High Radiation and Channel Fail. Check source actuation is manual from the ratemeter, with alarms muted when in the check source mode. The Model 940-3 assembly may be furnished with the optional cooling water jacket around the standard detector or with a high temperature gamma scintillation detector (up to 300ºF) for high temperature process liquid applications. The Snowplow monitor can be oriented either horizontally or vertically to accommodate plant process piping runs.