Operational Guide
34
Recalibrating a pH sensor or adding to an existing calibration is simple and
follows the PROCEDURE outlined on page 28.
Press CAL. Place sensor in desired buffer and select buffer from choices. When
sensor has equilibrated, the CFM tag will turn on and blink. Press the CFM key.
Press CAL to escape the calibration. Alternately continue calibrating in
additional buffers. The latest calibration point will be added to the existing
data. GLP will reflect the latest calibration data. Older calibration buffers will
be seen as blinking buffers.
Note
: Each time a buffer is confirmed, the new
calibration data replaces the old data for the
corresponding buffer or for any near buffer in a ±0.2
pH proximity. If the current buffer has no previous
data stored and the calibration has not used five
buffers, the current buffer is added to the existing
calibration. If the existing calibration is full, the
instrument asks which buffer to replace.
Note:
When using Standard mode (Basic mode Off), the user has a choice if
they want the display to show the CONDITION and RESPONSE gauges on the
display. These are part of the Cal Check™ system and are selected in SETUP by
the parameter INFORMATION. The choice is ON or OFF.
Electrode Condition And Electrode Response Time
edge™ pH Calibration Check™ feature will assess electrode condition and
response time during each calibration and display it for the rest of the day.
The condition gauge shows the electrode’s condition that is based on the
offset and slope characteristics of the pH electrode at the time of calibration.
The response gauge is a function of the stabilization time between the first
and second calibration buffers, when calibration is performed between a pair
of 4.01, 7.01, or 10.01. These gauges reflect the electrode’s performance and
should be expected to slowly decrease over the life of the electrode.
pH
Calibration
Summary of Contents for Edge
Page 1: ...Instruction Manual Multiparameter Benchtop Meter ...
Page 92: ...Warranty 92 Notes ...
Page 93: ...Warranty 93 Notes ...
Page 94: ...Warranty 94 Notes ...
Page 95: ...Warranty 95 Notes ...