ELTRA ELEMENTRAC ONHp2 User Manual

Maintenance
57
10.3 Reagents
The fillings of the reagent tubes are replaced when they are saturated.
The following chemicals are used:
Magnesium perchlorate
(anhydrone)
as a moisture absorbent
Sodium hydroxide
as CO
2
absorbent
Copper oxide,
contactors reagent
as oxidant (CO → CO
2
)
NOTICE
Set up a “counter” in the software. Please refer to the software manual in the Section “Analyser
status”.
– Magnesium perchlorate is saturated when its particles no longer move after lightly
tapping against the glass tube. It is very important to replace the absorbent before it
becomes lumpy. Therefore, it is necessary to check it every 100 to 200 analyses and
replace it, if necessary.
– It is not possible to dry and reuse the magnesium perchlorate as it has chemically
changed itself after reacting with moisture.
– The saturation of the sodium hydroxide leads to a color change; it becomes light grey.
– Contactors reagent changes its colour when saturated from yellow to pink to brown to
black.
– Copper oxide is chemically reduced and turns reddish in colour.
Magnesium perchlorate and contactors reagent are oxidising!
Please observe the notes in the safety data sheets in terms of the chemicals.

ELTRA ELEMENTRAC ONHp2 Specifications

General

Brand	ELTRA
Model	ELEMENTRAC ONHp2
Category	Measuring Instruments
Language	English