Error Message Ofl, Ufl; General Information; Symbol For Calibration Evaluation Flashes; Lobat] Display - Xylem SI Analytics Lab 855 Operating Manual

What to do if...
38
10.2.2

Error message OFL, UFL

The measured value is outside the measuring range of the meter.
The measured value is obviously incorrect.
Cause
• Cable broken
• Gel electrolyte dried out
• Air bubble in front of the junction
• Air in the junction
10.3

General information

10.3.1

Symbol for calibration evaluation flashes

Cause
Calibration interval expired
10.3.2

[LoBat] display

Cause
Batteries almost empty
10.3.3

Instrument does not react to keystroke

Cause
Operating condition undefined or
EMC load unallowed
Remedy
• Replace the electrode
• Replace the electrode
• Remove the air bubble
• Extract air or moisten the junction
Remedy
Recalibrate the measuring system
Remedy
Replace the batteries (see section
3.3.1 I
NSERTING THE BATTERIES
10)
Remedy
• Processor reset:
Press the <ENTER> and
<On/Off> key simultaneously
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Lab 855
, page
12/2017