Yokogawa GD40 Gas Density Detector - Manual (Page 140)

<7. HYDROGEN PURITY / PARAMETER SETTING>
7-17
IM 11T3E1-01E
(b) Setting of preset hold value [*PR.SET]
This item applies if item (a) above is set to “2”.
Configurable range: -10.0 to 110.0 (percent of analog output)
[ENT]
03
*CODE
*SERVC
X
*H_HLD
XXX.X
*PR.SET
[ENT]
[ENT]
[YES]
F0710.ai
* 1
* 2
* 3
* 4
* 5
*1: See "Figure 7.4 Process at the Setting Level" on page 7-10.
*2: Enter the code number.
*3: Set a value using the [ ] and [ENT] keys.
*4: Set a value using the [ ], [ ] and [ENT] keys.
If you enter a value that exceeds the limits, the display shows [*OVER].
Press the [YES] or [NO] key to re-set the value.
*5: Setting 0 or 1 returns to the service level with the indication [*SERVC].
Figure 7.10 Process of Setting the Hold of Hydrogen Purity Range
[Note]
Relationship of CODE 01 to 03 with Output Hold Function Applied to Parameter [*CAL.DT] at
Setting level.
Hydrogen purity/Replacement (Substituents-concentration) Meters Mode
Priority Status
Hydrogen purity Range is
Selected for Output
Hydrogen purity Range is
Not Selected for Output
1 Error The output value selected in CODE03 The output value selected in CODE 02
2 Calibration The output value selected in CODE03 The output value selected for data item
[*C_HLD] under parameter [*CAL.DT]
3 Maintenance The output value selected in CODE03 The output valve selected in CODE 01
4 Switch to replacement
meter mode
The output value selected in CODE03 The normal output condition applies
Example: If you select parameter [*H_A] for output 1 and parameter [*H_C_A] for output 2, then
the resulting status-by-status output values to be held are summarized as follows:
Output 1 Output 2
During error status As per CODE 03 As per CODE02
During calibration status As per CODE 03 As per data item [*C_HLD ]
under parameter [*CAL.DT]