Hach HQ1110, Руководство пользователя

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4. Select Calibration to change the settings for calibrations.
Option Description
Slope limit Sets the accepted range of values (from theoretical) for the calibration slope.
Options: 1 to 15% (default: 15%).
Buffer set Selects the set of temperature-compensated pH buffers to use for calibration.
All of the values in the buffer set show during calibration. The user can read all
or some of the buffers. The minimum number is set in the Minimum calibration
points setting. Options:
Color Coded 4.01, 7.00, 10.01 (default)
IUPAC 1.68, 4.01, 7.00, 10.01, 12.45
DIN 1.09, 4.65, 9.23
IUPAC 1.68, 4.01, 6.86, 10.01, 12.45
IUPAC 1.68, 4.01, 6.86, 9.18, 12.45
IUPAC 1.68, 4.01, 7.00, 9.18, 12.45
Custom: Select the buffer set from a list of standard and custom buffers.
Options: Buffers, Add a buffer or Delete buffers.
Buffers When Buffer set is set to Custom, selects the buffer set from a list of standard
temperature-compensated pH buffer values and user-specified buffer values.
Each buffer in the set must be a minimum 2 pH units apart from the other
buffers. The maximum number of buffers in a set is 5.
Add a buffer When Buffer set is set to Custom, lets the user enter a new value (within the
range of the probe). Custom buffer values are not temperature compensated
and should be read at 25 °C.
Delete buffers When Buffer set is set to Custom, removes a custom buffer from the list of
available buffers.
Minimum
calibration
points Sets the minimum number of buffers that must be used for calibration.
Options: 1 (default), 2 or 3.
Reminder Sets a time interval for probe calibration. A reminder shows on the meter after
the time interval. Options: Off (default), 2 hours, 4 hours, 8 hours, 2 days,
5 days or 7 days. The meter can also make a sound during the reminder
(Settings > Sound).
Expiration When Reminder is set to a time interval, changes the calibration status to
expired after the reminder occurs. Options: Immediately after reminder,
30 minutes after reminder (default), 1 hour after reminder, 2 hours after
reminder or Continue reading (calibration status does not change).
5. Select Verification to change the settings for calibration verifications.
Option Description
Standard Selects the pH buffer solution to use for verifications. Options (at 25 °C):
1.09 pH, 1.68 pH, 4.01 pH, 4.65 pH, 6.86 pH, 7.00 pH (default), 9.18 pH,
9.23 pH, 10.01 pH or 12.45 pH.
Acceptance
range Sets the range of pH values that will be accepted for verifications. Options:
±0.005 to 1.000 pH (default: ±0.100 pH).
Invalidate
calibration Changes the calibration status to expired if the verification result is not
within the Acceptance range setting. Options: Yes or No (default).
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