Yokogawa Single Channel Oxygen Analyzer System ZR22/ZR402 - Manual (Page 129)

IM 11M12A01-03E 8-17
8. Detailed Data Setting
Note
• Measurement range switching function by an external contact input is available for
analog output1 only.
• When making a semi-automatic calibration, be sure to set semi-automatic or auto-
matic mode using the Calibration setup display.
• When carrying out “blowback,” be sure to set “blowback” in the output contact setup.
• When the unburnt gas detection signal is sent to the contact input, the converter will
cut the power supply to the heater of the detector. As a result, the heater temperature
becomes low and Error1 or Error2 happens.
8.5.2 Setting Procedure
The following are set so that semi-automatic calibration starts when input contact open
is applied to “Input1.”
Proceed as follows:
(1) Press the “Setup” key in the Basic panel display to display the Execution/Setup
display.
(2) Select “Setup” Setup in the Execution/Setup display to display the “Commission-
ing” (Setup) display.
(3) Select “Contact setup” in the “Commissioning” (Setup) display.
(4) Select “Input contacts” in the Contact setup display. The Input contacts display
then appears, as shown in Figure 8.13.
(5) Select Input1 in that display. The Input contacts display then appears, as shown in
Figure 8.14.
(6) Select Calibration start.
(7) Select Input1 “closed.” An Open or Closed selection display then appears.
(8) Choose Open.
Input1: No function
᭜ Input1 contact is active at:
Closed
᭜ Input2: No function
᭜ Input2 contact is active at:
Closed
Enter
Input contacts
F8.13E.EPS
Input1: No function
᭜ Input1 contact is active at:
Closed
᭜ Input2: No function
᭜ Input2 contact is active at:
Closed
Enter
Input contacts
No function
Cal. gas press. low
Range change
Calibration start
Process up set
Blow back start
F8.14E.EPS
Figure 8.13 Input Contacts Display Figure 8.14 Input Contacts Display
8.5.3 Default Values
When the analyzer is delivered, or if data are initialized, contact input is disabled.