Autonics PSAN Series Manuale del prodotto - Pagina 6
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Zero-point Adjustment
With the pressure port open, the current pressure value on display is set to zero forcibly
by removing deviations from opening the pressure port. Zero-point adjustment affects
analog output.
• For precise measurement, execute zero-point adjustment periodically.
Output
0%
Maximum / Minimum Value Monitoring
In order to identify abnormal conditions of the system that are not easily identified or
to diagnose the max. / min. input that has occurred, save the value and notify it.
• When the memorized max. / min. pressure is higher / lower than the rated pressure, it
displays 'HHHH' / 'LLLL'.
Input
Max. memorized input
Display / Output Scale
Customizes the scale of display / output value from rated output range. If the measured
input is a, b, and the arbitrary values to be displayed are A, B, the display / output value
are outputted for input a and b linearly (a = A, b = B).
Display / Output
Display / Output
B
B
A
A
A
A
B
Input
Response Time
Prevents chattering of the output by changing the response time of the control output
and pressure display value.
When the response time is longer, the number of digital filter increase, so stable
measurement is possible, but the measured value may differ from the actual input
value.
Analog Output Characteristic
■ Input - Output
Voltage/
Current output
Max. Output
Min. Output
Input
Rated input
range
Display input range
Input
Input
Min. memorized input
Time
Display / Output
A
B
Input
B
A
■ Linearity
Voltage/
Current output
Linearity
External Input
■ Auto shift
The judgment level is corrected by applying the standard pressure which is set
when external input signal is applied.
• Correction set value ST1 = ST1 + SH.IN
Correction set value HYS1 = HYS1 + SH.IN
SH.IN is the reference pressure set by Auto shift input.
• When auto shift is not used
Pressure
Setting pressure
Hysteresis
ON
Output
OFF
• When auto shift function is used
Pressure
Setting pressure
Hysteresis
Time
ON
Output
OFF
■ Remote zero
Executes zero-point adjustment function when external input signal is applied.
■ Hold
Holds current display value and control output when external input signal is applied.
B
Input
Input:
Display:
• When hold function is not used
Input/
Display
Output
ON
OFF
• When hold function is used
Input/
Display
Output
ON
OFF
Input
Hold
ON
Input
OFF
Normal primary
Drop of primary
pressure
pressure
Drop of primary
Normal primary
pressure
pressure
Auto shift input
Auto shift input
Reference pressure
Reference pressure
= Atmospheric
≤ Atmospheric
pressure (0.0kPa)
pressure (0.0kPa)
Input/
Display
Detection area
Time
Output
ON
OFF
Time
Input/
Display
Detection area
Time
Output
ON
OFF
Time
Hold
ON
Input
OFF
Increase of primary
pressure
Time
Time
Increase of primary
pressure
Time
Time
Reference pressure
≥ Atmospheric
pressure (0.0kPa)
Detection area
Time
Time
Detection area
Time
Time