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PFMC
Function Details
Output operation
The output operation can be selected from the following:
Output (hysteresis mode and window comparator mode) corresponding
to instantaneous flow, or output (accumulated output and pulse
output) corresponding to accumulated flow.
Note) At the time of shipment from the factory, it is set to hysteresis mode and normal output.
Display color
The display color can be selected for
each output condition. The selection of
the display color provides visual iden-
tification of abnormal values. (The
display color depends on OUT1 setting.)
Reference condition
The display unit can be selected from standard condition or normal
condition.
Standard condition: Flow rate converted to a volume at 20°C and 1 atm (atmosphere)
Normal condition: Flow rate converted to a volume at 0°C and 1 atm (atmosphere)
Display mode
The display mode can be selected from
instantaneous flow or accumulated flow.
Response time
The response time can be selected to suit the application.
(Default setting is 1 second.)
Abnormalities can be detected more quickly by setting
the response time to 0.05 seconds.
The effect of fluctuation and flickering of the display can
be reduced by setting the response time to 2 seconds.
Selection of display on sub screen
The display on the sub screen in measuring mode can be set.
Sub
screen
Display OFF mode
This function will turn the display OFF. In this mode, decimal points
flash on the main screen. If any button is pressed during this mode,
the display reverts to normal for 30 seconds to allow checking of the
flow etc.
Setting of security code
The user can select whether a security code must be entered to
release key lock. At the time of shipment from the factory, it is set
such that the security code is not required.
Series
Green for ON, Red for OFF
Red for ON, Green for OFF
Red all the time
Green all the time
Instantaneous flow display
Accumulated flow display
0.05 sec.
0.1 sec.
0.5 sec.
1 sec.
2 sec.
Set value display
Displays the set value. (The set
value of OUT2 cannot be dis-
played.)
Bottom value display
Displays the bottom value.
External input function
This function can be used only when the optional external input is
present. The accumulated flow, peak value and bottom value can be
reset remotely.
Accumulated flow external reset: A function to reset the accumulated flow value
when an external input signal is applied.
In accumulated increment mode, the accumulated
value will reset to, and increase from zero.
In accumulated decrement mode, the accumulated
value will reset to, and decrease from the set value.
∗ When the accumulated value is memorized, every time the accumulated
flow external reset is activated, the memory device (EEPROM) will be
accessed. Take into consideration the maximum number of times the
memory device can be accessed, 1 million times. The total of external input
times and accumulated value memorizing time interval should not exceed 1
million times.
Peak/Bottom reset: Peak and bottom value are reset.
Forced output function
The output is turned on/off in a fixed state when starting the system
or during maintenance. This enables confirmation of the wiring and
prevents system errors due to unexpected output.
For the analog output type, when ON the output will be 5 V or 20 mA,
and when OFF, it will be 1 V or 4 mA.
∗ Also, the increase or decrease of the flow and temperature will not
change the on/off status of the output while the forced output function is
activated.
Accumulated value hold
Accumulated value is not cleared even when the power supply is
turned off.
The accumulated value is memorized every 2 or 5 minutes during
measurement, and continues from the last memorized value when
the power supply is turned on again.
The life time of the memory element is 1 million access cycles. Take
this into consideration before using this function.
Accumulated value display
Displays the accumulated val-
ue. (The accumulated value of
OUT2 cannot be displayed.)
Line name display
Displays the line name. (Up to
6 alphanumeric characters can
be input.)
Peak/Bottom value display
The maximum (minimum) flow rate is detected and updated from
when the power supply is turned on. In peak (bottom) value display
mode, this maximum (minimum) flow rate is displayed.
Keylock function
Prevents operation errors such as accidentally changing setting values.
Peak value display
Displays the peak value.
OFF
Displays nothing.
285
PFM
PFMB
PFMC
PFMC
PFMV
PF2A
PF3W
LFE
PF2D
IF
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