Pulse Instruments
System 4 Manual
Version 1.6
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5. Rinse the electrode with water and place it in the
pH 4.01 buffer solution and allow sufficient time
for the electrode to reach the buffer solution value.
6. Press the “ENT” button.
7. The first display will start blinking and it will not
stop blinking until the controller is calibrated to the
buffer solution value (pH 4.01). The second
display will show “4 - 7”.
8. Press “ENT” to save all calibration values. Follow
the same steps if you are using pH 10.00 and pH
7.00 buffer solution.
7.2.2 ORP
Calibration
1. Place the ORP electrode into a known
ORP standard solution (ORP-468). Press
and hold the “CAL” button for three
seconds.
2. Press the “AUTO” button if the ORP value
is already at the standard solution value
(468). Press the “ENT” button to start the
calibration if the ORP value is NOT the
standard solution value. The “CAL”
indicator light will turn on and the “SCAL”
on the second display will start blinking.
