YOKOGAWA ADMAG AXR User Manual page 73

(3) Menu D: Total Setting items
Menu D contains parameters that are relevant to
totalization function settings.
[D10: Total Unit] Setting of units for totalization
scale
→ Read the description of parameter B30.
[D11: Total Scale] Setting of the totalization scale
→ Read the description of parameter B31.
[D12: Total Decimal Pnt] Setting of the decimal
point position for the totalization display
This parameter sets the position of the decimal
point for totalization display in terms of the number
of digits. Except in cases where 0 is selected, the
totalized units are not displayed.
Example: When totalized value is 12345678 m
Item Totalization display
0 12345678 m
3
1 1234567.8
2 123456.78
3 12345.678
4 1234.5678
5 123.45678
6 12.345678
7 1.2345678
[D13: Total Low Cut] Setting of the totalization stop
range
This parameter allows the settings to be made that
prevent totalization when the flow rate is at or below
the low-cut setting value. The low cut setting value
depends on flow rate span.
● Flow rate span < 1 m/s:
Input value or 3 cm/s, whichever is bigger
● Flow rate span ≥ 1 m/s:
Input value
To confirm the flow rate span velocity in "m/s" unit,
read [C44: Velocity Check].
If the multiple ranges or forward/reverse ranges is
used, low cut is carried out at the setting value for
the smallest span.
Example: S ituation where "the first range" is set to
"0.8 m/s" and "the second range" is set to
"1.5 m/s"
- When "5 %" is input in this parameter:
No totalization is carried out at flow
rates of 4 cm/s or lower.
- When "3 % (i.e. 2.4cm/s)" is input in this
parameter:
No totalization is carried out at flow
rates of 3 cm/s or lower.
However, the low cut function will be terminated if
this parameter is set to "0 %".
<6. PARAMETER DESCRIPTION>
NOTE
When the low cut is small, an incorrect output
may occur at the flow rate of zero and the
totalization may be carried out. Use the
instrument with the default setting 3%. If the span
is small, the damping time is short, or the fluid is
low conductivity, the totalization may be carried
out easily at the flow rate of zero. In this case, set
the span to be large, set the damping time to be
long, or set the low cut to be large.
[D14: Total Rate Check] Display of the totalization
rate in "Pulse/s"
This parameter displays the totalization rate, which
is converted to "Pulse/s" while 100% of the range
flows.
3
When the multiple ranges or forward/reverse
ranges are used, the AXR displays the totalization
rate which 100% of their maximum range flows.
[D20: Total Execution] Operation setting for the
totalization function
This parameter sets "Start" and "Stop" of the
totalization function, in addition to performing the
preset function for the forward totalized value and
the reverse totalized value.
*: The preset function is to set a preset value to totalization and
is used to start the count for totalization from the set value.
The preset value is determined using D21: Ttl Set
Val Lower and D22: Ttl Set Val Upper. Setting
of zero as the preset value allows the zero-reset
function to be implemented. After presetting, this
parameter goes back to its previous status ("Start"
or "Stop"). In case that "Start" has been selected,
the count for totalization starts from the preset
value.
Item
Start
(initial value)
Stop
Preset Total
Preset Rev
Total
[D21: Ttl Set Val Lower] Setting of the totalization
preset value (lower 6 digits)
This parameter sets a totalization preset value
in the lower 6 digits of the 8-digit totalized value.
If zero is to be set as the preset value, "000000"
should be set here.
Description
Starts totalization
Stops totalization
Sets the preset value for totalization display
that has been specified as the forward totalized
value.
Sets the preset value for totalization display
that has been specified as the reverse totalized
value.
6-22
IM 01E30D01-01EN