Yokogawa ADMAG AXR - Manual (Page 75)

<6. PARAMETER DESCRIPTION>
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IM 01E30D01-01EN
NOTE
For more details regarding the setting of
hysteresis width, refer to the description of
setting parameter for F30: Auto Range Hys and
F31: Bi Direction Hys.
[F30: Auto Range Hys] Setting of automatic range-
switching hysteresis width
Automatic switching takes place for multiple range
switching when 100% of the range is exceeded,
and this parameter allows a hysteresis width to be
set for this switching.
Refer to Figure 6.4.1: Multiple Ranges and
Hysteresis Widths.
[F31: Bi Direction Hys] Setting of forward/reverse
flow measurement hysteresis width
This parameter sets the hysteresis for forward/
reverse flow rate measurement as a % value of the
minimum flow span.
Refer to Figure 6.4.1: Multiple Ranges and
Hysteresis Widths.
(6) Menu G: Alarm Setting items
(Refer to Section 6.5: Alarm Functions for more
details.)
Menu G principally contains setting items relevant
to alarms.
[G10: Low Alarm] Low alarm setting
This parameter sets the low limit (L) alarm value,
and this is done using a % value of the maximum
span.
● A setting value of -105% indicates that the
alarm is disabled.
[G11: High Alarm] High alarm setting
This parameter sets the high limit (H) alarm value,
and this is done using a % value of the maximum
span.
● A setting value of 105% indicates that the alarm
is disabled.
Output Example 1
The high alarm (H) is set to 80% or more; the low
alarm (L) is set to 30% or less; and the H/L alarm
hysteresis width is set to 0%.
Settings are:
G10: Low Alarm = 30%
G11: High Alarm = 80%
G12: H/L Alarm Hys = 0%
0 Time (t)
Select “H/L Alarm(O)” for F10: DO Function
Select “Closed (On) Act” for F11: DO Active Mode
Select “Yes” for G28: Alm-H/L
DO Open Closed Open Open Closed
High Alarm
Instantaneous flow rate
Low Alarm
30
50
80
100
[%]
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