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-11-
No.PS
※※
-OMV1001
■
Definition and terminology
Terms
Meaning
2
2-colour display
2 colours are used to indicate a value, which change according to the output status.
7
7-segment display
When "8" is shown on the display. It is called 7-segment because 8 consists of
7 pieces of "- (segments)".
A
Analogue current output
Refer to "Analogue output (function)".
Analogue output function
A function to output the voltage or current in proportion to the pressure.
Analogue voltage output
Refer to "Analogue output (function)".
Auto preset
A function to automatically set up the pressure by having equipment hold and
release a workpiece via vacuum adsorption. This function is used in an application
where vacuum adsorption of a workpiece is confirmed by a Pressure switch.
B
Bottom value display
Displays the minimum pressure reached up to that moment.
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.
Chattering prevention function
A function to delay the response time of switch output in order to prevent chattering.
Copy function
A function to copy a pressure setting value and function setting (excluding fine
adjustment of display value).
D
Delay time
The setting time from when the pressure applied to the pressure switch
reaches the set value, to when the ON-OFF output actually begins working.
Delay time setting can prevent the output from chattering.
Digit (Minimum setting unit)
Shows how precisely the pressure can be displayed or set by the digital
Pressure switch. When 1 digit
=
1 kPa, the pressure is given with an increment
of 1kPa, e.g., 1, 2, 3,
…, 99, 100.
Digital filter
Function to add digital filtering to the fluctuation of pressure value. Smooth the fluctuation
of displayed value and analogue output for sharp start up or fall of the pressure.
When the function is valid, digital filtering is reflected to the ON/OFF of the
switch output.
Output chattering or flicker in the measurement mode display can be reduced
by setting the digital filter.
The response time indicates when the set value is 90% in relation to the step input.
Display accuracy
The deviation between displayed pressure value and the true pressure.
Display colour
The colour of the digital display. There are four choices: normally green,
normally red, green (off) to red (on), and red (off) to green (on).
Display resolution
How fine the rated pressure range can be displayed.
Display unit
The unit of pressure used on the display.
E
Error indication
With the self-diagnostic function of the Pressure switch, this indicates that there
is an error which could cause a switch failure.
F
Fine adjustment mode
Refer to "Fine adjustment of display value".
Fine adjustment of display value
A displayed pressure value can be adjusted within the range of ±5%R.D.
(±5% of the displayed value). It is used if a true pressure value is known or to
correct the difference of a displayed value of the measurement equipment
nearby which measures the same pressure.
F.S. (full span/full scale)
Abbreviation for full span or full scale; this means the maximum fluctuation
range of the Pressure switch rated value. For example, when the output
voltage is 1 to 5[V], the F.S. will be 5-1
=
4[V]. (Ref: 1%F.S.
=
4 × 0.01
=
0.04[V])
Function selection mode
This is a mode in which each function is set up, and is a separate menu from
the pressure setup. If the setting needs to be changed, "F*", each item can be
set up. The items to be set up are: display colour, operation mode, output type,
response time, display resolution, fine adjustment of display value, auto preset,
power-saving mode, security code number and low-cut function.