Setting Measurement Gas Temperature And Pressure - YOKOGAWA ZR402G User Manual

Procedure
n
Use the parameter code table below to set fuel values.
Table 8.17
Set item
Amount of water vapor in exhaust gas
Theoretical amount of air
X value
Absolute humidity of the atmosphere
Default Values
n
When the analyzer is delivered, or if data are initialized, parameter settings are by default, as
shown in Table 8.18.
Table 8.18
Amount of water vapor in exhaust gas
Theoretical amount of air
X value
Absolute humidity of the atmosphere
8.6.4

Setting Measurement Gas Temperature and Pressure

The analyzer calculates the moisture content contained in exhaust gases and saturated water
vapors from the entered gas temperature and pressure to obtain the relative humidity and dew
point. Enter the exhaust gas temperature and pressure (absolute pressure) necessary for the
calculation (see Section 10.1 later in this manual).
NOTE
The critical temperature of the saturated water vapor pressure is 374°C. If a gas temperature
exceeding 370°C is entered, no correct calculation will be obtained.
Procedure
n
To set the gas temperature and pressure, follow the parameter code table for fuel setting.
If you set a value exceeding the setting ranges, an error, ERR will result.
Table 8.19
Set item
Exhaust gas temperature
Exhaust gas pressure
Setting Fuel Values
Parameter code
Default Settings of Fuel Values
Item Default setting
1.00 m
1.00 m
0.1000 kg/kg
Fuel Setting Default Value
Parameter code
<8. Detailed Data Setting>
Set value
F20 0 to 5
F21 1 to 20
F22 0 to 19.99
F23 O to 1
3 3
/kg (m )
3 3
/kg (m )
1.00
Set value
F13 0 to 3000
F14 0 to 300
Engineering units
3 3
m /kg (m )
3 3
m /kg (m )
kg/kg
Engineering units
°C
kPa abs.
IM 11M12A01-04E 11th Edition : Jul. 19, 2017-00
8-19