© PCE Instruments
6
MENU
ITEM
DESCRIPTION
OPTIONS
FACTORY
SETTING
Selection of the calibration
points
USA
(pH4.01/7.00/10.01)
USA
NIST
(pH4.01/6.86/9.18)
Number of calibration points
1 point
2 points
2 points
3 points
Selection of the temperature
unit
Celsius
°C
Fahrenheit
Temperature calibration
---
---
Enables the hold function
when the measured value is
stable
On
Off
Off
The auto-off function switches
the unit off after 8 minutes
without any key being pressed
On
On
Off
Reset to factory settings
Yes
No
No
After resetting the meter to factory settings, calibration is mandatory.
6
pH calibration
The devices allow a calibration of up to 3 points. To achieve high measurement accuracy, we
recommend at least a 2-point calibration. The meter automatically recognises and calibrates to
the following standard buffer values.
USA standard buffer pH 4.01, 7.00, 10.01
NIST standard buffer pH 4.01, 6.86, 9.18
The 1-point calibration can only be performed with pH 7.00 or pH 6.86, otherwise the calibration
will not be accepted.
The meter must be calibrated before first use.
Regular calibration is recommended to ensure measurement accuracy. DO NOT reuse the pH
buffer solution after calibration as impurities in the solution will affect the calibration and eventually
the accuracy of the measurement.
