Analytik Jena multi EA 4000 User Manual

Fault removal
116 Edition 01/2016 multi EA 4000
9.6.2 Cl detection
IMPORTANT
To prevent errors always note:
−
Connect measuring cell with stirrer rod (filled with electrolyte) and electrode before
switching on the basic device and Cl module.
−
Start the multiWin program approx. 3 min after switching on the analyzer.
Recovery too low (splitting factor > 1.4)
Cause
Solution
− sulfuric acid too diluted − check and replace sulfuric acid
− components or measuring gas
hoses sooted up
− Check combustion tube for contamination.
Clean the combustion tube by burning off the
deposits with a Bunsen burner or in the muffle
furnace at 1000 °C. Replace heavily contami-
nated tubes. Replace the quartz wool in the
combustion tube
− Check sulfuric acid container for soot. If parti-
cles have entered as far as the sulfuric acid
container, clean the container and connection
at the furnace outlet and refill the container.
Recovery too high (splitting factor < 0.6)
Cause Solution
− Sample deposits in the combustion
tube (e. g. salts)
− Replace or clean combustion tube, e.g. by
"soaking" the combustion tube overnight in
10% HNO
3
, then rinse thoroughly with distilled
water and dry.
Shutdown threshold below 1500
Cause Solution
− Combination electrode faulty or too
old
− Use new electrode for chlorine detection.

Analytik Jena multi EA 4000 Specifications

General

Brand	Analytik Jena
Model	multi EA 4000
Category	Measuring Instruments
Language	English