19
5
PROGRAMMING…
5.3
Configure Sensors
Configure Sensor A
Sensor B configuration (dual input monitors only) is identical to Sensor A
configuration.
Single input monitors only – return to main menu.
Displayed Units
Select the units required for display:
mg/l
– milligrammes per litre
mg/kg
– milligrammes per kilogramme
ppm
– parts per million
Filter Time
To prevent short term variations in reading, typically due to air bubbles in the sample, the
sensor signal can be configured to provide an average reading over a set period of time.
Set the required filter time, between 1 and 10 minutes in 1 minute increments.
Note.
Use the lowest value that provides an acceptably stable reading. The default value
is 3 minutes.
Inferred Units
The monitor is calibrated and operates in mgl
–1
dissolved organic carbon but can be
configured to display values in inferred units:
None
– The monitor displays all sensor readings in mgl
–1
.
Absorbance/m
– A conversion factor of 1.5 is applied to the sensor signal.
Colour (°H)
– displayed in °H
The conversion factor set in the
Coagulant Dose
– displayed in mgl
–1
A:Conv. Factor
frame (see next page) is
TOC
– displayed in mgl
–1
applied to the sensor
signal.
User Defined
–
The required units are entered in the
A: User Defined
frame (see
next page) and the conversion factor set in the
A:Conv. Factor
frame (see next page) is applied to the sensor signal.
Notes.
• With the exception of
Absorbance/m
, the conversion factor must be determined by
laboratory analysis of the actual sample.
• When inferred units are selected for display, all values for alarm settings, current output
ranges and calibration values remain in mgl
–1
dissolved organics but the equivalent
inferred unit is displayed.
Infer. Units
set to
User Defined
– continued on next page.
Infer. Units
set to
Colour (°H)
,
Coagulant Dose
or
TOC
– continued on next page.
Infer. Units
set to
None
or
Absorbance/m
– continued on next page.
A: User Defined
A:Conv. Factor
Config. Sensor A
-----
CONFIG. SENSOR
-----
Config. Sensor B
CONFIG. SENSOR
Infer.
-----
Units
A:Filter Time
3
Mins
A:Displayed Unit
-----
A: None
A: Absorbance/m
A: Colour (
H)
A:Coagulant Dose
A: TOC
A: User Defined
ppm
mg/kg
mg/l
A:Clean Interval