Entering Output Damping Constants; Selection Of Output Mode; Default Values; Output Hold Setting - YOKOGAWA ZR402G User Manual

8.1.6

Entering Output Damping Constants

If a measured value adversely affected by a rapid change in the sample gas oxygen
concentration is used for the control means, frequent on-off actions of the output will result. To
avoid this, the converter allows the setting of output damping constants ranging from 0 to 255
seconds.
8.1.7

Selection of Output Mode

You can select a linear or logarithmic output mode. The former provides linear characteristics
between the analog output signal and measured value.
NOTE
When you select logarithmic mode, the minimum output remains constant at 0.1% O
humidity remains set to 0.1% H
values. Set value of C11 to C16 remains unchanged.
8.1.8

Default Values

When the analyzer is delivered or data are initialized, the output current settings are by default as
shown in Table 8.3.
Table 8.3
Item
Min. oxygen concentration
Max. oxygen concentration 25%
Minimum humidity
Maximum humidity
Minimum ratio setting
Maximum ratio setting
Output damping constant
Output mode
8.2

Output Hold Setting

The "output hold" functions retain an analog output signal at a preset value during the
equipment's warm-up time or calibration or if an error arises.
Table 8.4 shows the analog outputs that can be retained and the individual states.
Table 8.4
Equipment status
Output hold
values available
4 mA
20 mA
Without hold feature
Retains output from just
before occurrence
Set value (2.4 to 21.6 mA)
O: The output hold functions are available.
*1: The output hold functions on error occurrence are unavailable when option code "/C2" or "/C3" (NAMER NE 43 compliant) is
specified.
O and mixing ratio is set to 0.01 kg/kg, regardless of the set
2
Output Current Default Values
Default setting
O
0%
2
O
2
H O
0%
2
H O
25%
2
0 kg/kg
0.2 kg/kg
0 (seconds)
Linear
Analog Output Hold Setting
During
warm-up
O
O
O
<8. Detailed Data Setting>
During During
maintenance calibration
O O
O O
O O
, and the
2
Error
occurrence
(*1)
O
O
O
IM 11M12A01-04E 11th Edition : Jul. 19, 2017-00
8-5