Reset Calibration To Defaults; Change The Calibration Options - Hach 9181600 Manual De Usuario

The measured pH and temperature value is shown.
c. Wait for the value to stabilize. Push ENTER
d. If the solution is a sample, measure the pH value with a secondary verification instrument.
Use the arrow keys to enter the measured value and push ENTER.
Note: If a pH buffer not listed in the Cal Options menu is used, refer to the buffer bottle to find the pH value
that corresponds to the temperature of the buffer.
11. Review the calibration result:
• Passed—the sensor is calibrated and ready to measure samples. The slope and/or offset
values are shown.
• Failed—the calibration slope or offset is outside of accepted limits. Repeat the calibration with
fresh reference or sample solution. Refer to
information.
12. If the calibration passed, push ENTER to continue.
13. If the option for operator ID is set to Yes in the Calibration Options menu, enter an operator ID.
Refer to

Change the calibration options

14. On the New Sensor screen, select whether the sensor is new:
Option Description
YES The sensor was not calibrated previously with this instrument. The days of operation and previous
calibration curves for the sensor are reset.
NO The sensor was calibrated previously with this instrument.
15. Return the sensor to the process and push ENTER.
The output signal returns to the active state and the measured sample value is shown on the
measure screen.
Note: If the output mode is set to hold or transfer, select the delay time when the outputs return to the active
state.

Reset calibration to defaults

To remove a bad calibration, replace the user calibration settings with the default calibration settings
using the Calibrate menu. Then recalibrate the sensor when needed.
1. Push the MENU key and select Sensor Setup, Calibrate, [Select Sensor], Reset Defaults.
2. If the passcode is enabled in the security menu for the controller, enter the passcode.
3. Select Yes and push Enter.
Change the calibration options
The user can select buffer solutions for pH calibrations, set a calibration reminder, enable auto
stabilization during calibrations or include an operator ID with calibration data from the Cal Options
menu.
1. Push the MENU key and select Sensor Setup, Calibrate, [Select Sensor], Cal Options.
2. Customize the options:
Option
SELECT BUFFER For pH only-changes the set of buffer solutions that are recognized for calibration to pH
AUTO STAB
14 English
on page 14.
Description
4.00, 7.00, 10.00 (default set) or DIN 19267 (pH 1.09, 4.65, 6.79, 9.23, 12.75)
Note: Other buffers can be used if the 1 point sample or 2 point sample option is
selected during calibration.
For pH only-enables the system to accept measurement signal values during calibrations
and advance to the next step of the calibration when the system determines the
measurement signal has stabilized-On or Off (default). Enter a stabilization range-0.01 to
0.1 pH unit.
*
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Troubleshooting on page 16 for more