August 2003
1-6 Features and Capabilities
M Series and TF Series Moisture Probes (cont.)
Figure 1-3:  The M Series Probe
Figure 1-4:  The TF Series Probe
Although the M and the TF Series probes may be installed 
directly in the process line, more often these probes are inserted 
into a sample system. The sample system protects the probes and 
enables the user to easily remove the probes for calibrating, 
servicing and cleaning. Sample systems also control various 
process and environmental conditions so that the moisture probe 
or sample system operates within specifications.
The M and the TF Series probes, when operated with a 
BASEEFA-approved PM880, are intrinsically safe (see Chapter 
10, Specifications) and designed to meet the requirements of IEC/
CENELEC zone 0 areas.