Aquaprobe
®
AP-7000 Instruction Manual
10401-00894 Rev M
15.1. Top Tips for successful measurements using optical electrodes
➢
Always keep the measurement chamber and electrode lenses clean.
➢
Always fit the sleeve and end cap during both calibration and measurement.
➢
Always allow the readings to settle completely during both calibration and
measurement.
➢
Always try to eliminate air bubbles by activate the self-cleaning mechanism.
➢
Always calibrate and zero the electrode as close to your sample temperature as
possible. This is especially important with the Ref-Oil electrode.
➢
Always zero the optical electrodes just prior to use in clean water (bottled still
mineral water is ideal) then deploy
without disturbing the measurement chamber
.
This is especially important when using the Turbidity electrode.
15.2. Optical Electrode Calibration Sequence
Optical electrodes feature either two or three point calibration, dependent upon the type. In
all cases however, the lower calibration points is ZERO.
When calibrating any optical electrode,
the Zero point must be calibrated first.
If you are performing a two or three point calibration, all calibration points must be
calibrated within the same calibration session (i.e. without turning the Aquameter
®
off or
disconnecting the Aquaprobe).
If you attempt to calibrate an upper calibration point without first calibrating the
ZERO point, a calibration error will occur.
15.3. Fluorescent Electrode Grab Sample Correction Factor
A unique feature of the Aquaread
®
fluorescent type electrodes is the ability to include a
correction factor based upon a grab sample.
If grab sample data is available, a Grab Sample Factor (GS Factor) can be input on the
calibration screen of each fluorescent type electrode in order to improve accuracy the of
future readings from that electrode.
See the individual fluorescent electrode calibration sections for more details of the unique
GS Factor.
© 2017 Aquaread
®
Ltd.
www.aquaread.com
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