Change a passcode
To change a set passcode, first make sure that the passcode is set. Refer to Set a passcode
on page 18.
1. Push SETUP to put the meter in setup mode.
2. Use the arrow keys to enter the four-digit passcode.
3. Push ENTER.
4. If the passcode is not correct, the display shows "Err."
5. Push CANCEL
to enter the correct passcode, or push pH, mV, ISE, TDS, COND, SAL or DO to
go back to measurement mode.
Note: Contact technical support if the user or the system administrator cannot enter the correct passcode.
Override an error
The user can override some errors (e.g., poor electrode condition) until a replacement electrode is
ordered and received.
Note: It is not possible to override all errors. The manufacturer does not recommend that the user override error
codes. Contact technical support to override error codes.
To cancel or override an error:
1. Find the cause of the error. Refer to Error codes on page 29. If possible, push CANCEL or pH,
COND, TDS or DO to cancel the calibration or other error.
2. To override the error, do not complete step 1. Instead, push ENTER.
3. Use the arrow keys until "YES" shows.
4. Push ENTER.
Advanced operation
Set the pH operations
Set the calibration alarm, the pH resolution, the calibration points and the calibration methods. Do the
operations in order.
1. Set the power to on.
2. Push SETUP, then pH.
3. Use the arrow keys to select an option, then push ENTER:
Operation Function
pH calibration alarm Sets the alarm from 1 to 999 hours. The recalibration alarm is set to "OFF" at
000 hours.
pH resolution Sets the pH resolution to 0.1 or 0.01 pH. The stabilization lock (the "READY" icon) is
faster at a 0.1 pH resolution.
Set the 2, 3, 4 or 5-point
pH calibration
Shows the current number of calibration points. Use the arrow keys to set the
calibration points.
pH calibration method
• Selects the pH buffer to use and in what order. The default is a 2-point calibration
(pH 7.00, then 4.00).
• Shows the pH buffer for the first calibration point.
• Changes other buffer values to set the pH calibration method until all buffers are
set.
Note: Previously-set buffers will not be shown.
4. Push ENTER to keep the changes and go back to setup mode.
Note: To exit and not keep the changes, push CANCEL.
English 19
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