Ph Measurements - Sartorius PT-15 Bedienungshandbuch

pH Measurements

When buffer icons are on the meas-
urement screen, this means that the
instrument has a single or multi-point
calibration and is ready for measure-
ments.
1. Measurement with ATC/Temp sensor
in the pH mode:
1.1 Connect the pH sensor and the
ATC/Temp sensor to the connectors
of the instrument. The Auto icon will
be on.
1.2 Press the [MODE] key for the LCD to
indicate pH.
1.3 Rinse the sensor in distilled water.
Then rinse with a little of the sample
(if enough is available) and immerse
in the sample.
1.4 Allow sufficient time for the display
to stabilize. The instrument will display
the pH value of the sample at the
sample temperature.
1.5 If "----" is displayed, the pH value
measured is out of the –2.00 to
16.00 pH range. The instrument
will display the correct value once the
input pH is brought within range.
2. Measurement with manual tempera-
ture compensation in the pH mode:
2.1 Connect the pH sensor to the BNC
connector of the instrument.
2.2 Press the [MODE] key until the LCD
display the pH icon.
2.3 Rinse the sensor in distilled water.
Then rinse with a little of the sample
(if enough is available) and immerse
in the sample.
2.4 Set the instrument to the temperature
of the sample by pressing the UP [
and DOWN [ ] keys.
2.5 Allow sufficient time for the display to
stabilize. The instrument will display
the pH value of the sample at the set
sample temperature.
2.6 If "----" is displayed, the mV value
measured is out of the –2.00 to
16.00 pH range. The instrument will
display the correct value once the
input pH is brought within range.
]
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