Calibration: Hot Wire Type Combustibles Detector - Ametek Thermox Series 2000 WDG-IV User Manual

Calibration: Hot Wire Type Combustibles Detector

If you have a Hot Wire-type detector, the zero gas display appears:
You are also prompted to apply the combustibles span gas to the calibra-
tion gas inlet port of the sensor (tubing must be free of oil and dirt):
5-10 | Thermox Series 2000 WDG-IV / IVC / IVCM
Display line 2 will only appear if you have the combustibles option;

display line 3 will only appear if you have the combined combustibles
and methane option.
NOTE
1. Press Enter when the zero gas reading(s) on the left of the display stabi-
lizes. The reading on the far right of the first display line shows the setpoint
value you entered for the O
option. This O zero gas setpoint value should match the cal gas cylinder
2
for the O zero gas.
2
2. Press Enter when you have applied this calibration gas. You are prompted
to calibrate the combustibles span gas.
If you are calibrating a WDG-IVCM analyzer with a Hot-wire type
catalytic detector, you must have a separate combustibles span and
methane span calibration gas - see the "Mechanical Installation" sec-
tion in Chapter 3 for recommended calibration gases.
Press ENTER to Span Comb
3. Press Enter when the combustibles span gas reading(s) stabilizes on the
far left of the display.
O2 xx.x % Set xx.x %
Cmb yyyy Set 0
CH4 zzzz Set 0
Press ENTER to Zero
zero gas using the Cal Gas Values menu
2
Inject Comb Span Gas
ENTER to Continue
CANCEL to Abort
O2 xx.x %
Cmb yyyy Set yyyy
CH4 zzzz Set zzzz