Rtd Type - Ametek Thermox Series 2000 WDG-IV User Manual

RETURN
TO PROCESS
Figure 1-3. WDG-IVCM with RTD-wire type combustibles detector convection loop.
1-6 | Thermox Series 2000 WDG-IV / IVC / IVCM

RTD Type

WDG-IVCM analyzer with RTD-wire type combustibles detector (see Fig-
ure 1-3) is used for natureal gas fired boilers (natural gas for start-up and
primary fuel). Process gas is drawn into the analyzer's primary sample
loop by an aspirator and return to process. Gas enters the RTD-type com-
bustibles detector flow block and contacts RTD-type combustibles detec-
tor. The gas then travels into the hot-wire methane detector flow block
where it contacts the methane sensor. It then passes the zirconium oxide
cell, where the oxygen concentration is measured, before returning to the
main sample loop and then back to the process.
ZIRCONIUM OXIDE
OXYGEN CELL
HOT-WIRE TYPE
METHANE DETECTOR
RTD-TYPE
COMBUSTIBLES DETECTOR
ASPIRATOR BLOCK
CELL
HOUSING
CONVECTION
LOOP
RETURN
SAMPLE
ASPIRATOR AIR