Yokogawa Integral Oxygen Analyzer ZR202 - Manual (Page 127)

<8. Detailed Data Setting>
8-21
IM 11M12A01-02E
8.6.4 Setting Purging
Purging is to remove condensed water in the calibration gas pipe by supplying a span calibration
gas for a given length of time before warm-up of the detector. This prevents cell breakage during
calibration due to condensed water in the pipe.
Open the solenoid valve for the automatic calibration span gas during purging and after the purge
time has elapsed, close the valve to start warm-up.
Purging is enabled when the cell temperature is 100 °C or below upon power up and the purge
time is set in the range of 1 to 60 minutes.
Tag:
30
°C
4mA -Output1
4mA -Output2
Hold Purge
F8.19.ai
Figure 8.19 Display during Purging
8.6.4.1 Procedure
Set the purging time as follows:
(1) Press the [Setup] key in the Basic panel display to display the Execution/Setup display.
(2) Select “Commissioning” in the Execution/Setup display. The Commissioning (Setup) display
then appears.
(3) Select “Others” in that display and the Others display then appears, as shown in Figure
8.20.
(4) Select “Purging”. The purging time setting display appears, as shown in Figure 8.21.
(5) Point to the “Purging time” and press the [Enter] key. Then the display for selecting purging
time appears.
(6) Enter the desired numeric value from the numeric-data entry display.
The allowable input ranges from 0 to 60 minutes.
Enter
Others
F8.20.ai
 Clock
 Averaging
 Fuel setup
Purging

Unit setup
 Passwords
 Defaults Enter
Purging time: 0 min
Purging
F8.21E.ai
Figure 8.20 Other Settings Figure 8.21 Purging Display
8th Edition : Jan.13,2012-00