20
…5.3
Configure Sensors
User Defined Units
Enter the units to be displayed in the operating pages.
A flashing cursor is shown in the upper display line. Press the
and
keys until the
first character of the required units is shown in the center display line. Press the
key to
enter the character into the upper display line and advance the cursor one character.
Repeat the process for the remaining characters to a maximum of 6.
Press the
key to save the user defined units and advance to the next frame.
Conversion Factor
Enter the conversion factor, determined by laboratory analysis, to be applied to the sensor
signal for the chosen inferred units, between 0.10 and 9.00 in 0.01 increments.
Notes.
• It is assumed that the applied conversion factor remains constant.
• The monitor measures absorbance of dissolved organics at 254nm only. If the
conversion factor changes, the monitor readings may not agree with independent
laboratory results until a new conversion factor is determined and entered.
Cleaning Interval
Select the required interval between automatic cleaning operations:
15, 30 or 45 minutes or 1, 2, 4, 6, 12 or 24 hours.
Note.
The cleaning interval setting is determined by plant experience. Check the
condition of the flowcell and optical windows at appropriate intervals to determine the
optimum setting.
Flow Alarm
Set the input switch contact condition required during normal operations:
Off
– Input switch contact disabled
N/O
– Normally open
N/C
– Normally closed
Sensor B configuration (dual input monitors only) is identical to Sensor A
configuration.
Single input monitors only – return to main menu.
See Section 5.4.
…5
PROGRAMMING
A: User Defined
A
B
A:Conv. Factor
2.00
Infer. Units
set
to
User Defined
A:Clean Interval
1
Hr
A:Flow Alarm
-----
A:Flow Alarm
-----
N/C
N/O
Off
Infer. Units
set to
Colour (°H),
Coagulant Dose
or
TOC
Infer. Units
set to
None
or
Absorbance/m
CONFIG. ALARMS
Config. Sensor A
Config. Sensor B
CONFIG. SENSOR
