Hanna Instruments HI 2212 User Manual

Page 14

GLP is a set of functions that allows storage and retrieval of data
regarding the maintenance and status of the electrode.
All data regarding the last calibration (one, two, or three point) is stored
for the user to review when necessary. This data includes the following:
calibration time stamp, offset (mV), average of slope (%), calibration
buffers and the time until a new calibration is required.
EXPIRED CALIBRATION

These instruments allow the user to set the number of days before the
next required calibration. This value can be set from 1 to 7 days. The
default setting is OFF (disabled).
The instruments check if the time-out time has expired. If the time
elapsed, the “CAL” “INTV” tags will blink as a reminder.
Note

: If the instruments were not calibrated, the “CAL” “INTV” tags

will be displayed even if the feature is disabled in SETUP menu.

pH CALIBRATION DATA

Calibration data is stored automatically after a successful calibration.
To view the pH calibration data, press GLP while in measurement mode.
The instruments will display the time (hh:mm) of the last calibration.

Use the ARROW keys to scroll through the calibration data:
• The date (yyyy.mm.dd).

• The pH calibration offset.

• The pH calibration slope (the GLP slope is the average of the calibration

slopes; the percentage is referred to the ideal value of 59.16 mV/pH).

GOOD LABORATORY PRACTICE (GLP)

This manual is related to the following products:

HI 2213