GE Moisture Image 1 Series, Руководство по программированию

Страница: 13 / 125

Features and Capabilities 1-5
June 2003
M Series and TF Series
Moisture Probes (cont.)
Figure 1-3: 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 the flow of the process stream so that it
is within the specifications of the measurement probe or cell.
The M and TF Series probes, when used with a BASEEFA-approved
Series 1, are intrinsically safe (see Chapter 3, Specifications, of the
Startup Guide for BASEEFA certification numbers) and designed to
meet the requirements of IEC/CENELEC zone 0 areas.
When operated with a CSA-NRTL approved Series 1, the M and TF
Series probes are intrinsically safe (see Chapter 3, Specifications, of
the Series 1 Startup Guide for CSA-NRTL certification numbers) and
designed to meet the requirements of NEC C1.1, Div. 1, Groups A, B,
C and D hazardous areas.
The M and TF Series probes measure moisture content in a standard
range from –110°C to 20°C (–166°F to 68°F) dew/frost point
temperature and optionally from –110°C to 60°C (–166°F to 140°F).
Both probes optionally measure temperature in a range of –30°C to
70°C (–22°F to 158°F). The TF probe optionally measures pressure
from 30 to 300, 50 to 500, 100 to 1000, 300 to 3000, or 500 to 5000
PSIG.