YSI P 700 IQ Analyzer - Manual (Page 54)

54 ba76133e01 09/2013
P 700 IQ
Priority
Tab. 4-3: Priorities
4.2 Calibration
4.2.1 Overview
Why calibrate? During operation, components of the P 700 IQ can age or become dirty
and thus change their characteristics, e.g.:
• Flow-through cell
• LED
• Photo diodes
• Color reagent
Regular automatic or manual calibration procedures help you to recog-
nize any changes of the measuring characteristics of the P 700 IQ.
When to calibrate? Calibrate at regular intervals.
1-point calibration The offset of the characteristic curve can be adjusted with a regular 1-
point calibration.
The 1-point calibration can be carried out automatically at regular inter-
vals. An additional 1-point calibration procedure can be started in the
calibration and service menu at any time. See section 4.2.2,  55.
The Autom.cleaning, Autom.calibration and Meas. interval
settings may result in the overlapping of the carrying out of
different functions.
In this case, the functions are carried out according to pri-
ority.
Function Priority
Duration
(min) Measuring
range
Autom.cleaning 1 5 A, B
Autom.calibration 2 6
9
A
B
Measurement 3 5
7
A
B