YOKOGAWA MG8G, Руководство пользователя, Страница: 40 / 63

<8. PARAMETER SETTINGS>
8-1
IM 11P03A03-01E 6th Edition : Jan. 26, 2022-00
8. PARAMETER SETTINGS
8.1 Output Hold
Analog output is held at a constant value when the instrument is in the following conditions.
• During a warm-up period, analog output is held at 4 mA.
• During calibration, analog output is held at the last measured value or is not held (user
selectable).
• When an error occurs, analog output is held at the last measured value or at a preset value,
or is not held (user selectable).
If more than one condition above occurs simultaneously, the output hold are prioritized in the
following order.
1. When an error occurs
2. During calibration
3. During a warm-up period
8.1.1 Setting the Output Hold Function During Calibration
The output hold function during calibration can be set to “enabled” or “disabled.” When the
function is set to “enabled,” the analog output is held at the last measured value during
calibration; when set to “disabled,” the instrument outputs measured values during calibration.
The hold function deactivated after the purge time has elapsed in calibration. The purge time is
the amount of time for sample gas to flow through the sensor unit to purge calibration gas in the
unit after calibration and it is user configurable. For the setting of the purge time, refer to Chapter
9, Calibration.
Span Calibration Time
Zero Calibration Time
Output Hold Time
Purge Time
F11.1E.ai
Figure 8.1 Output Hold During Calibration
(1) Switch to MAINT mode and enter the password.
(2) Change the Function Number to “04.”
(3) Set the output hold function during calibration using the SHIFT and INCR keys. To enable
the function (i.e., the analog output is held at the last measured value), set to “0,” or to
disable the function, set to “1.” Press the EXEC key to accept.