-13-
No.PF
※※
-OMS0002-B
Terminology
Definition
M
Minimum setting unit
The resolution of set and display values.
If the minimum setting unit is 1 L/min, the flow can be displayed in 1 L/min units, i.e.
10, 11, 12.
N
Normal condition (NOR)
Reference condition for volumetric flow: 101.3 kPa, 0 °C The flow measurement
which is converted at normal atmospheric pressure conditions at 0
C.
O
Operating fluid temperature
The fluid temperature range within which the product will meet all published
specifications.
Operating humidity range
The ambient humidity range within which the product will meet all published
specifications.
Operating pressure range
The pressure range within which the product will meet all published specifications.
Operating temperature
range
The ambient temperature range within which the product will meet all published
specifications.
P
Part in contact with fluid
A part that comes into physical contact with the fluid.
Pressure characteristics
The amount of variation in the analogue output or display value when the supply
pressure is changed.
Proof pressure
The pressure beyond which the product will be damaged.
R
Rated flow range
The flow range within which the product will meet all published specifications.
Repeatability
Reproducibility of the display or analogue output value, when the flow is repeatedly
changing.
Response time
(analogue output)
The time from when the flow is applied as a step input (when the flow rate changes
from 0% to 100% instantaneously) until the switch output turns ON (OFF) at 90% of
the rated flow rate.
Response time
(switch output)
The time from when the flow is applied as a step input (when the flow rate changes
from 0% to 100% instantaneously) until the analogue output (voltage or current)
reaches 90% of the actual flow rate.
Ripple
Indicates pulsation.
S
Set flow range
The range of ON/OFF threshold values that can be set for products with a switch
output.
Standard condition
(ANR)
Reference condition for volumetric flow: 101.3 kPa, 20
C, 65%RH The flow
measurement which is converted at normal atmospheric pressure conditions at 20
C, 65%R.H.
Switch output
An output type that has only 2 conditions, ON or OFF. In the ON condition an
indicator LED will turn on, and any connected load will be powered. In the OFF
condition, there will be no indicator LED and no power is supplied to the load.
T
Temperature characteristic
The amount of variation in the analogue output or display value when the ambient
temperature is changed.
U
Unit selection function
Function to change the unit in which the value of flow is displayed. Only a product
with this function can change the unit. A product with unit selection function cannot
be purchased if it is used within Japan. Flow is indicated only by SI units in Japan.
W
Window comparator mode
An operating mode in which the switch output is turned on or off depending on
whether the flow is within the range of 2 set values.
