9
B. Calibration
BUFFER SETTING
The buffer setting is factory selected according to user
preference, but the user can change this setting by going to
normal pH reading
【
Pressing [STAND] and turn on when it’s
off.
】
The 6360 will acknowledge by displaying “7.00” (7.00,4.01
& 10.01) or “6.86” (6.86,4.00 & 9.18) and the text “buf” at the
first display when it’s turned on then turns to normal pH
operation.
CALIBRATION SET-UP
A. STAND AND SLOPE CALIBRATION (pH Mode)
To calibrate the stand and/or slope follow these steps:
1. Go to pH mode. Press the [CAL] key, the "CAL" icon will
appear in the lower middle of the display. At this point the
unit will display the current buffer set 7.00 for buffer set #1
(7.00, 4.01 & 10.01) or 6.86 for buffer set #2 (6.86, 4.00 &
9.18). The "STAND" icon will start to flash indicating that
the first buffer to be used is 7.00 or 6.86.
2. Place the probe in a standard buffer solution (7.00 or 6.86
buffer). Press the [STAND] key.
3. The "STAND" icon will stop flashing and stay ON. The
display will change to the pH value of the current
temperature. If a temperature probe is available, the
"AUTO" icon will turn on. If the offset ORP of the solution
is greater or less than ±100 mV (for buffer 7.00) or 108.3
mV/-91.7 mV (for buffer 6.86), then an error display will
occur. You can clean the probe and change the solution,
and press [MODE] to exit the calibration. If no error occurs
the unit will wait for the reading to stabilize for about ten
seconds (during this waiting time "WAIT" icon will blink)
then it will lock the value of the display. If during
stabilization period and the reading changes more than
pH
7.00
AUTO
SLOPE
STAND
CAL
25.0
°C
