Yokogawa Integral Oxygen Analyzer ZR202 - Manual (Page 113)

IM 11M12A01-05E 8-16
8.5 Input Contact Settings
The equipment input contacts execute set functions by accepting a remote contact signal.
Table 8.11 shows the functions executed by a remote contact signal.
Table 8.11 Input Contact Functions
T8.5.0.1.EPS
Set item Function
Calibration-gas pressure While the contact signal is on, neither semi-automatic nor
decreased automatic calibration is possible.
Measuring range change While contact input is On, range of Analog Output is switched
as follows:
When analog output range is set to "Humidity", then output range is
switched to 0 to 100% H
2
O.
When analog output range is set to "Mixing ratio", then output range
is switched to 0 to 1 kg/kg.
When analog output range is set to "Oxygen", then range is switched
to 0 to 25% O
2
.
Calibration start If the contact signal is applied, semi-automatic calibration starts
(only if the semi-automatic or automatic mode has been setup).
Calibration is started with an applied one-second time interval
single-output contact signal. Even if a continuous contact
signal is applied, a calibration is not repeated. If you
want to perform a second calibration, turn the contact signal off
and then back on.
Unburnt gas detection If the contact signal is on, the heater power will be switched off.
(A one-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.
CAUTION
To conduct a semi-automatic calibration, be sure to set Calibration setup mode to
“Semi-Auto” or “Auto.”
8.5.1 Setting Input Contact
To set the input contacts, follow the parameter codes given in Table 8.12.
Table 8.12 Parameter Codes for Input Contact Settings
Set item Parameter code Set value
Input contact 1 (function) E01 0: Invalid
1: Calibration gas-pressure decrease
2: Measuring range change
3: Calibration
4: Unburnt gas detection
Input contact 2 (function) E02 0: Invalid
1: Calibration gas-pressure decrease
2: Measuring range change
3: Calibration
4: Unburnt gas detection
Input contact 1 (action) E03 0: Operated when closed
1: Operated when open
Input contact 2 (action) E04 0: Operated when closed
1: Operated when open
T8.13E.EPS