Datasheet

Displays nothing.
OFF
∗ The above are examples of integrated displays. (Same as remote monitor unit)
Displays the line name. (Up to 6
alphanumeric characters can be
input.)
Line name display
Displays the fluid temperature.
(When the temperature sensor type is
selected.)
Fluid temperature display
Sub screen
Integrated display Remote monitor unit
Displays the set value. (The set value
of OUT2 cannot be displayed.)
Set value display
Displays the accumulated value. (The
accumulated value of OUT2 cannot be
displayed.)
Accumulated value display
Displays the peak value.
Peak value display
Displays the bottom value.
Bottom value display
ON: Green, OFF: Red
ON: Red, OFF: Green
Always: Red
Always: Green
0.5 seconds
1 second
2 seconds
 Indication colour
The indication colour can be selected for each
output condition. The selection of the
indication colour provides visual identification
of abnormal values. (The indication colour
depends on OUT1 setting.)
 Selection of display on sub screen
The display on the sub screen in measuring mode can be set.
 Response time
The response time can be selected depending on the application. (1
second for default setting)
Abnormalities can be detected more quickly by setting the response time
to 0.5 seconds.
The effect of the pump fluctuation and flickering of the display can be
reduced by setting the response time to 2 seconds.
Note) The temperature sensor output is fixed to 7 seconds.
 Output operation
The output operation can be selected from the following:
Output (hysteresis mode and window comparator mode) corresponding to
instantaneous flow rate,
Output corresponding to accumulated flow,
Accumulated pulse output
Note) At the time of shipment from the factory, it is set to hysteresis mode and normal
output.
When a temperature sensor is attached, the output to the temperature
sensor is selectable only for OUT2.
(Refer to “How to Order” for details.)
Response
time
Applicable model
Integrated display
Series
PF3W7
Remote monitor unit
Series
PF3W3
 External input function
This function can be used when external input is available. The accumu-
lated value, peak value, and bottom value can be reset by remote control.
Accumulated flow external reset:
This function resets the accumulated value to “0” when an input signal is
applied.
In accumulated increment mode, the value will be zero when reset, and
the accumulated value will increase from zero.
In accumulated decrement mode, the value will be the set value when
reset, and the accumulated value will decrease from the set value.
∗ When the accumulated value is memorised, every time the accumulated value
external reset is activated, the memory element (EEPROM) will be accessed. Take
into consideration the maximum number of times the memory element can be
accessed, 1 million times. The total of external input times and accumulated value
memorising time interval should not exceed 1 million times.
Peak and bottom reset: Peak and bottom values are reset.
 Forced output function
Output is turned ON/OFF compulsorily when starting the system or during
maintenance. This enables confirmation of the wiring and prevents system
errors due to unexpected output.
For the analogue output type, the output will be 5 V or 20 mA for ON and
1 V or 4 mA for OFF.
∗ 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 function
Accumulated value can be saved on the unit even when the power supply
is turned off.
The accumulated value is memorised every 2 or 5 minutes during
measurement, and continues from the last memorised value when the
power supply is turned on again.
The lifetime of the memory element is 1 million access cycles. Take this
into consideration before using this function.
 Peak/Bottom value indication
The maximum (minimum) flow is detected and updated from when the
power supply is turned on. In peak (bottom) value indication mode, this
maximum (minimum) flow is displayed.
 Setting of secret code
Users can select whether a secret code must be entered to release key
lock. At the time of shipment from the factory, it is set such that the secret
code is not required.
 Power saving mode
The display can be turned off to reduce the power consumption.
In power saving mode, decimal points blink on the main screen.
If any button is pressed during power saving mode, the display is
recovered for 30 seconds to check the flow, etc.
 Keylock function
Prevents operation errors such as accidentally changing setting values.
Integrated Display (Series PF3W7)/Remote Monitor Unit (Series PF3W3)
Series PF3W
Function Details 1
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