Hanna Instruments HI 98160, Instruction Manual

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14
ALT
GLP
FNC
CFM
RANGE
AutoEnd CAL
ALT
GLP
FNC
CFM
RANGE
pH CALIBRATION
1. Rinse pH electrode and temperature probe with a portion of the
first calibration buffer or clean water. Dip the bottom 4 cm (1½")
of both probes into a beaker containing the solution, while pay
attention that the temperature probe is as close as possible to the
pH electrode.
2. Press CAL when the meter displays pH
measurement.
3. Enter the password (if different from "0000") with the arrow keys.
4. Press the ALT and CFM keys to confirm the password or the CAL
key to exit.
5. If password is correct, the meter displays "7.01pH" on the lower
LCD with the "BUF 1" and "CAL" indication. The upper LCD shows
the pH reading.
Note
: The buffer pH value, and thus the value displayed on the lower
LCD, varies with temperature. For example, at 20 o C it shows
4.00 ; 7.03 ; 10.06, at 25 o C it shows 4.01; 7.01; 10.01.
6. Select the first buffer solution value with the and keys
if necessary.
7. When the "CFM" symbol blinks, the read-
ing is stable and calibration can be
confirmed.
8. Press the ALT and CFM keys to confirm the first buffer.
9. If everything is satisfactory the LCD will
display "Stor" and then the second buffer
value expected (two-point calibration).
19
- year
- time
- pH reading
"----" means reading out of range or
no probe was connected.
"OrP" means that an ORP electrode
was connected.
- mV reading
"----" means reading out of range.
- temperature reading
"----" means reading out of range.
- GLP message
• If the RANGE key is pressed when the GLP message is displayed,
the LCD will revert to the date of the viewed sample.
• It is always possible to skip to another sample using the up and
down arrow keys. For example, if the pH reading of a sample is
displayed, pressing the
key will cause the meter to display
the pH reading of the next sample.
• At any time it is possible to return to normal operating mode by
pressing the ALT and RCL keys.
TO DELETE LOGGED DATA
It is possible to delete a single sample or all the memory at one time.
To delete a single sample:
• Enter the viewing logged data mode and select the desired
sample number.
• Press the ALT and DEL keys. The "dEL"
and "CFM" indications will start blinking
asking for confirmation.
• Press the ALT and CFM keys to confirm.
ON / OFF
ALT
LIGHT
FNC
DEL