Hach 8310 Manuel De L'utilisateur page 11

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Option
CONFIG CONC
TEMP ELEMENT
FILTER
LOG SETUP
RESET DEFAULTS
4.3 Configure user tables
Depending on the type of sensor and the type of measurement required, user-defined tables can be
selected during sensor configuration. The following explains how to configure a user-defined table.
Concentration tables
By default, this table contains only 2 points (P1 and P2) that define the minimum and maximum
limits. When P1 and P2 have been defined, additional points can be inserted between them. As an
example to define the minimum conductivity and concentration as zero, and the maximum
conductivity as 750 with a maximum concentration of 30. proceed as follows:
1. From the USER TABLE option select P1>EDIT POINT.
2. Enter the minimum conductivity (X) as 0.0 and push enter.
3. Enter the minimum concentration% (Y) as 0.0 and push enter.
4. Select SAVE CHANGES? and push enter.
5. From the USER TABLE option select P2>EDIT POINT.
6. Enter the maximum conductivity (X) as 750.0 and push enter.
7. Enter the maximum concentration% (Y) as 30.0 and push enter.
8. Select SAVE CHANGES? and push enter.
The following table has been defined:
P1
P2
To insert an additional point with a conductivity of 250 and a concentration of 15, select the point with
a conductivity value immediately above the value to insert. In this example select P2. The new
conductivity value of 250 will then become P2 and the existing P2 will become P3 as follows:
Description
CONCENTRATION only—sets the type of concentration table to use.
• BUILT-IN—Set the CHEMICAL that is measured:
• H2SO4 0-30%
• HNO3 0-28%
• HCl 0-18%
• NaOH 0-16%
Note: Although the range is shown as 0-16%, the tables can be more accurately
defined as 0-10% for all temperatures.
• NaCl 0-25%
• H3PO4 0-40%
• USER TABLE—Set the conductivity and concentration% points (refer to
user tables
on page 11)
Sets the temperature element to PT100 or PT1000 for automatic temperature
compensation. If no element is used, the type can be set to MANUAL and a value for
temperature compensation can be entered.
Sets a time constant to increase signal stability. The time constant calculates the
average value during a specified time—0 (no effect) to 60 seconds (average of signal
value for 60 seconds). The filter increases the time for the sensor signal to respond to
actual changes in the process.
Sets the time interval for data storage in the data log—5, 30 seconds, 1, 2, 5, 10,
15 (default), 30, 60 minutes.
Sets the configuration menu to the default settings. All sensor information is lost.
Conductivity
0
750
Configure
Concentration%
0
30
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