-15-
No.PF
※※
-OMY0005
■
Definition and terminology
Term
Definition
A
Accumulated flow
The total amount of fluid that has passed through the device. If an
instantaneous flow of 100 L/min lasts for 5 minutes, the accumulated flow will
be 5 x 100 = 500 L.
Accumulated pulse output
A type of output where a pulse is generated every time a predefined
accumulated flow passes. It is possible to calculate the total accumulated flow
by counting the pulses.
Accumulated-value hold time
A function to store the cumulative flow value in the product's internal memory
at certain time intervals. Reads the memory data when power is supplied.
Accumulation of data begins with the value read at the moment power is
supplied. The time interval for memorizing can be selected from 2 or 5
minutes.
B
Bottom value display (mode)
Shows the minimum from when the power was supplied to the current time.
C
Chattering
The problem of the switch output turning ON and OFF repeatedly around the
set value at high frequency due to the effect of pulsation.
D
Delay time
The setting time from when the measured value reaches the set value, to
when the ON-OFF output operates.
Delay time setting can prevent the output from chattering.
The response time indicates when the set value is 90% in relation to the step
input.
Digital filter
Function to add digital filtering to the fluctuation of measured value. Smooth
the fluctuation of displayed value for sharp start up or fall of the flow and
pressure.
When the function is valid, digital filtering is reflected to the ON/OFF of the
switch output. The response time indicates when the set value is 90% in
relation to the step input.
Output chattering or flicker in the measurement mode display can be reduced
by setting the digital filter.
Display accuracy
Indicates the maximum deviation between the displayed pressure value and
the true value.
Display color
Indicates the color of the number of digital display. Always green, always red,
green (switch OFF)
red (switch ON), red (switch OFF)
green (switch ON)
are available.
Display value fine adjustment
(function)
Displayed pressure value can be adjusted within the range of
5%R.D. (
5%
of displayed value). It is used if the true pressure value is known, or to
eliminate differences between the displayed values of different instruments
that are measuring the same pressure.
E
Error displayed
The code number displayed, identifying the error detected by the
self-diagnosis function of the flow switch.
Refer to the "Error display" on page
Error output
Switches the switch output to ON/OFF when an error is displayed.
Refer to "Switch output modes" on page
