Yokogawa Single Channel Oxygen Analyzer System ZR22/ZR402 - Manual (Page 105)

IM 11M12A01-03E 7-13
7. Startup
7.10 Checking Contact I/O
Conduct the contact input and output checking as well as operational checking of the
solenoid valves for automatic calibration.
7.10.1 Checking Contact Output
To check the contact output, follow these steps:
(1) Press the Setup key in the basic panel display to display the Execution/Setup display.
Select Maintenance in that display.
(2) Select Contact check then Contact output in the Maintenance panel display to display
the Output contacts display (see Figure 7.15.2).
(3) Select the desired output contact for checking. The display, which enables the closing
and opening of contacts, then appears. Use the display to conduct continuity check-
ing.
Output contact 1 : Open
᭜
Output contact 2 : Open
᭜
Output contact 3 : Open
᭜
Output contact 4 : Open
Enter
Output contacts
F7.15.2E.EPS
Figure 7.15.2 Output Contact Check Panel Display
WARNING
• If you conduct an open-close check for contact output 4, Error 1 or Error 2 will occur.
This is because the built-in heater power of the detector, which is connected to
contact output 4, is turned off during the above check. So, if the above error occurs,
reset the equipment or turn the power off and then back on to restart (refer to Section
10.4, “Reset,” later in this manual).