Yokogawa Single Channel Oxygen Analyzer System ZR22/ZR402 - Manual (Page 157)

IM 11M12A01-03E 10-9
10. Other Functions
10.2 Blow back
10.2.1 Blow back Setup
The following sections describe the blow back setup procedures required for carrying
out blow back.
10.2.1.1 Mode
There are three blow back modes available:
(1) No function – blow back disabled.
(2) Semi-automatic – in this mode, touchpanel operations or contact input signals will
start and perform blow back operations according to a preset time and output
stabilization time.
(3) Automatic – performs blow back operations automatically according to a preset
interval.
These three modes each have the specific limitations described below:
• If “No Function” is selected
No blow back operations are executed.
• If “Semi-auto” is selected, semi-automatic blow back can be executed (but no
calibration is made even when the automatic calibration startup time is reached.)
• If “Auto” is selected, automatic blow back can be executed in either the “Auto” or
“Semi-auto” mode.
To select the desired mode, follow these steps:
(1) Select the Setup key from the basic panel display to display the Execution/Setup
display. Then select Maintenance from the Execution/Setup display.
(2) Select the Blow back setup from the Maintenance display and select Mode. The
mode selection display as shown in Figure 10.8 then appears.
Enter
No function
Semi_Auto
Auto
Mode:
Blow back setup
F10.9E.EPS
Figure 10.8 Blow back Setup Display