Astralpool MULTI-PARAMETRIC INSTRUMENT Manuel D'installation page 20

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Menu index "3A2" Frequency output proportional to pH measurement (FWM PH)
3A2 FWM PH
SET POINT:
DOSE TYPE:
PULSE:
Item
Standard FWM:
SetPoint:
Dose Type:
Pulse:
Proportional Band:
The frequency output (Open collector circuit) can be used to control and guide the dosing of a remote
system in proportion to the pH measurement.
•
Menu index "3A3" Current output proportional to pH measurement (OUT mA PH)
3A3 OUT mA PH
RANGE:
START( 4):
END (20):
Note: The value set under the HOLD mA item is automatically generated by the instrument when a functional Hold
is present, for example due to a lack of water Flow Alarm or an enabled Voltage Input.
Item
Standard Out mA:
Range 0/4-20mA:
Start (4mA):
End (20mA):
Hold mA:
•
Menu index "3A4" PH ALARMS
3A4 PH ALARMS
MIN VAL.:
MAX VAL.:
OFA:
Item
pH Alarms List
Alarm minimum:
Alarm Maximum:
OFA (Maximum dose timer)
Holding range:
Holding time:
Level Alarm: System stop or
alarm display
Note: The Holding Range and Holding Time items must be used together.
The indicated function controls the chemical measurement at a constant value for long periods of time. This alarm
can help to prevent incorrect dosing as a result of damaged probes.
7.20pH
ACID
↓
20/min
Default Value
7.20 pH
Acid
20 pulses/minute
0.3 pH
4-20 mA
0.00pH
↓
14.00pH
Default Value
4-20 mA
0 pH
14 pH
4 mA
6.20pH
8.20pH
↓
OFF
Default Value
6.2 pH
8.2 pH
Off
Off
Off
Disabled
0000137242 Rev.3.1
3A2 FWM PH
DOSE TYPE:
PULSE:
PROP. BAND:
0-14 pH
Acid / Alka
20-150 pulses/minute
0.3-3pH
3A3 OUT mA PH
START( 4):
END (20):
HOLD mA:
0-20 mA or 4-20 mA
0.00 - 14.00 pH
14.00 - 0.00 pH
0-20 mA
3A4 PH ALARMS
HOLDING RANGE:
HOLDING TIME:
LEVEL ALARM:
0-14 pH
0-14 pH
10-3600 Seconds
0.2-3 pH
10-3600 Seconds
Enabled/Disabled
↑
ACID
20/min
0.30pH
Range
↑
0.00pH
14.00pH
4.00mA
Range
↑
OFF
OFF
DISABLED
Range
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