Default Values; Other Settings; Setting The Date-And-Time; Setting Periods Over Which Average Values Are Calculated And Periods Over Which Maximum And Minimum Values Are Monitored - YOKOGAWA ZR22G User Manual

8.4.3

Default Values

When the analyzer is delivered, or if data are initialized, alarm and other setting defaults are as
shown in Table 8.7.
Table 8.7
High-high limit alarm
High limit alarm
Low limit alarm
Alarm
Low-low limit alarm
settings
Calibration coefficient alarm
Startup power stabilization timeout alarm
Error
Warm-up
Output range change
Calibration
Maintenance
Other
settings
Blow back
High limit temperature alarm
Calibration gas press. low
Process upset
Operating contact status
Note: Blank boxes in the above table indicate that the default is "disabled".
8.5 Input Contact Settings
8.5.1 Input Contact Functions
The converter input contacts execute set functions by accepting a remote dry-contact ("voltage-
free contact") signal. Table 8.8 shows the functions executed by a remote contact signal.
Table 8.8
tem
Calibration gas pressure low
Measuring range change
Calibration start
Process upset
(Combustible gas detection)
Blow back start
Output Contact Default Settings
Item to be selected
Input Contact Functions
Contact input disables Semi-automatic or Automatic Calibration.
While contact input is On, range of Analog Output 1 is switched as follows:
When analog output 1 range is set to "Oxygen", then range is switched to 0 to
25% O . When analog output 1 range is set to "Humidity", then output range is
2
switched to 0 to 100% H
then output range is switched to 0 to 1 kg/kg.
While range is switched by the contact input, [Range] is displayed on the
screen. See Figure 8.9.
Contact input starts Semi-Automatic Calibration. Calibration Mode setting must
be [Semi_Auto] or [Auto]. Contact signal must be applied for at least 1 sec. Even
if input signal continues to be applied, calibration is not repeated unless contact
input is released then reapplied.
If the Contact signal is ON, heater power will be switched off. (A one- to
11-second time interval single-output signal is available as a contact signal.) If
this operation starts, the sensor temperature decreases and an error occurs. To
restore it to normal, turn the power off and then back on, or reset the analyzer.
Contact input starts Blow back. Contact signal must be applied for at least 1 sec.
Even if input signal continues to be applied, Blow back is not repeated unless
contact input is released then reapplied. (Refer to Section 10.4, Blow Back.)
<8. Detailed Data Setting>
Output Output
contact 1 contact 2
ON
ON
ON
(default) (default)
Open Closed
Function
O. When analog output 1 range is set to "Mixing ratio",
2
IM 11M12A01-02E
8-12
Output Output
contact 3 contact 4
�
ON �
ON �
�
�
�
ON
�
�
�
�
�
�
(default) �
�
Closed
Closed
(fixed)
16th Edition : Mar. 19, 2020-00