Operating The Education Line Ph Meter; Display And Key Controls - Mettler Toledo EL20 Bedienungsanleitung

Operating the pH meter
4.

Operating the Education Line pH meter

4.1

Display and key controls

1 Electrode condition (For electrode maintenance see section 5.2)
Slope: 95 -05 %
and offset: ± (0-5) mV
Electrode is in
good condition
2 Calibration icon - calibration in progress
3 Measurement icon - measurement or calibration is running
4 Setup icon - instrument is in the setup mode
5 Battery status icon (EL2 only) shows the condition of the batteries - fully charged, half-charged or
fully discharged (To replace batteries, see section 3.2)
6 pH/mV reading or slope in calibration process
7 Auto / Manual temperature compensation (see section 4.4)
8 Endpoint stability / Auto endpoint
9 Temperature during measurement or offset in calibration process
10 Calibration point
Error index
6
Five_pH_edu.indb 6
Slope: 90 - 94 %
or offset: ± (5 - 35) mV or offset: ± (>35) mV
Electrode needs
cleaning
/ Buffer group number / Memory number
Slope: 85 - 89 %
Electrode is defective
(EL2 only) /
METTLER TOLEDO Education Line pH meter
12.03.2007 15:08:47