HF132PEN_v0501_05
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2 - OVERRUN
Overrun can occur at the end of the batch process, e.g. as a result of slowness of a valve / pump.
Consequently, the accuracy is less. With this function, the F132-P analyses the actual overrun
characteristic after every batch. This information is used to correct the overrun automatically.
OVERRUN
21
For an accurate overrun correction, it is necessary that the flow meter
meets certain technical demands, such as "high resolution" and shows no
"false" overrun due to a slow update time.
Do not enable this function if the flow meter does not meet these technical
demands.
OVERRUN TIME
22
The overrun characteristic of the system will be analyzed during a certain
time after the batch. In this way, false signal generated through leakage
are eliminated.
Enter here the expected time needed by the system to stop a batch. It is
advisable to provide extra time in order to avoid an incorrect overrun
correction or false leakage alarms.
Note that the next batch can only be started after elapsing of this overrun
time!
The minimum overrun time is 0.1 second, maximum 999.9 seconds.
3 - ALARM
The F132-P offers a no-flow monitoring feature: if the flowmeter fails to generate a signal during a
certain period of time, the unit will shut-off the control output(s) and bring the batch controller in
alarm status. After clearing the alarm, the batch can be continued or denied.
NO-FLOW ALARM
31
With this function, the no-flow monitoring can be enabled / disabled.
NO-FLOW TIME
32
In case of a failing signal, this function determines the period of time after
which an alarm has to be triggered.
The minimum monitoring time is 0.1 second, maximum 999.9 seconds.
4 - DISPLAY
DISPLAY
41
The 17mm large digits can be set to
increase
(display actual batched
quantity) or to
decrease
(display remaining quantity to be batched).
5 - POWER MANAGEMENT
When used with the internal battery option, the user can expect reliable measurement over a long
period of time. The F132-P has several smart power management functions to extend the battery life
time significantly. Two of these functions can be set:
LCD NEW
51
The refresh rate of the display influences the power consumption
significantly. When the application does not require a fast display update,
it is
strongly advised
to select a slow refresh rate. Please understand
that NO information will be lost; every pulse will be counted and the output
signals will be generated in the normal way.
The following can be selected:
Fast - 1 sec - 3 sec - 15 sec - 30 sec - off.
Example: Battery
life-time
with a coil pick-up, 1KHz. pulses, FAST update: about 2 years.
with a coil pick-up, 1KHz. pulses, 1 sec update: about 5 years.
Note:
after a button has been pressed by the operator - the display
refresh rate will always switch to FAST for 30 seconds.
BATTERY-MODE
52
The unit has two modes:
operational
or
shelf
.
After
shelf
has been selected, the unit powers down and can be stored
for several years; it will not count pulses, the display is switched off and all
settings and totals are stored. In this mode, power consumption is
extremely low. To wake up the unit again, press
SELECT
twice.
