Troubleshooting; Icons And Functions - eXact pH+ Instruction Manual

Listed below are possible situations that may arise while testing.
Please contact one of our customer service representatives, or
watch our video online, if you require assistance.
Subject
"ER1" on pH
+
(DISPLAY)
"ER2" on pH
+
(DISPLAY)
The 1st point calibration must be in pH 7.00 buffer. Perform the
1
2nd point calibration (pH 4.00) immediately after the 1st point.
Do NOT turn off the meter before you conduct the 2nd point
calibration. If the meter is turned off after the 1st point calibration
the calibration process must be repeated. Calibrating directly in
pH 4.00 after turning the meter off and back on will cause Er1.
If you fi nd air bubbles in the pH glass bulb, shake the probe a few
2
times in an upward/downward motion to remove the bubbles. If
air bubbles are attached to the outside of the glass bulb, swirl the
probe in the solution to remove them. Air bubbles in the glass bulb
will cause unstable measurements.
ICONS AND SPECIAL FUNCTIONS
1. Calibration points indication:
(4.00pH)
2. Stable Measurement:
3. Reading value Auto Lock: HOLD
4. Self-Diagnostic Information: Er1, Er2
5. Low-Battery warning:
6. Two-Color backlight:
Blue—Measurement Mode;
Green—Calibration Mode;
7. Auto. Power off in 8 minutes if no operation.

TROUBLESHOOTING

Cause
Wrong calibration
solution or the
range of calibration
solution exceeds
LCD
standards
is pressed
LCD
before measurement
is stable (
up and stays)
(7.00pH)
comes
(10.00pH)
fl ashes, replace battery
exactph.com
Solution
Check if calibration
solution is correct
(1st pH calibration must
be pH 7.00)
1
Check if probe is
damaged
Check if there is any air
bubble in the pH glass
bulb
2
Wait for the smile icon to
come up and stay, then
press
7