Azbil Micro Flow MQV0005, Руководство пользователя

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4-2
Chapter 4. BASIC OPERATION
z
Indicating the flow set value (SP display)
If
[DISP]
key is pressed while the instantaneous flow rate is displayed,
the PV lamp goes out, the SP lamp lights and the flow set value (SP) is
indicated on the display.
Handling Precautions
•
If the SP value is not changed for about 10 seconds while the
flow set value is displayed, the instantaneous flow rate is redis-
played automatically. For details on how to change the flow
rate, see section 4-2 Setting the Flow Rate (P. 4-4).
•
When multiple setpoints (2 to 8 SPs) have been selected in
c-04
in the function setup, when switching by external input,
the flow set value SP value) is displayed for about one second,
and then the display switches to the SP No.
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Indicating the totalized flow
When the [DISP] key is pressed while the flow set value ( SP ) is dis-
played, the SP and L/min lamps go out, the L lamp lights up, and the
totalized flow value is indicated on the display.
When the totalized flow value is 10,000 or higher, the number is
displayed in two parts, the last four digits, followed by the first four
digits. When the value is the last four digits, the decimal point on the
display is lit up.
For example, when the totalized flow value is "123,456L", "
3456
." is
displayed.
Press the
[DISP]
key to display "
1 2
". To alternately display the first
and last four digits, press the
[ ]
key.
Handling Precautions
•
When an alarm occurs, the alarm code and the totalized flow
value are displayed alternately.
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Resetting the totalized flow count
The totalized flow value is reset to zero by holding down the [ENT] key
for two seconds or more while the totalized flow value is displayed.
Note (Advanced operation)
•
Totalized flow event output function
When "1: Totalized flow rate count up ON" is selected as the event
output type for function setup
C-07
or
C-08
, the event output
turns ON when the totalized flow value reaches the totalized flow
event setting. This threshold value for the totalized flow event is set
in the parameter setup mode.