Endress+Hauser analytikjena PlasmaQuant 9100 - Basic Device Maintenance; Cleaning the Dismantleable Torch

Maintenance and care PlasmaQuant 9100 (Elite)
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Maintenance interval Maintenance task
Every six months ¡ Check cooling water conductivity
Yearly ¡ Replace coolant yearly and if conductivity rises above
50 to 200 µS/cm
7.2 Basic device maintenance
7.2.1 Cleaning the dismantleable torch
WARNING
Risk of chemical burns from aqua regia
Aqua regia is a 3:1 mixture of concentrated hydrochloric acid and nitric acid. Aqua regia
is highly corrosive and has an oxidizing effect.
¡ Wear protective glasses and clothing when creating and working with aqua regia.
Work under an extraction hood.
¡ Observe all instructions and specifications in the safety data sheets for the basic ma-
terials.
CAUTION
Risk of burns from the hot torch
Plasma is extremely hot. The torch is still very hot after the plasma has been extin-
guished. Contacting these hot surfaces can cause burns.
¡ Wait 5minutes after extinguishing the plasma. Only touch the torch after this time.
CAUTION
Risk of injury
A risk of injury due to broken glass is present when handling glass parts.
¡ Handle glass parts with extreme caution.
Clean the torch in case of visible contamination (deposits or scaling). Depending on the
sample matrix, this can be necessary daily or at much greater intervals (monthly).
} Pull out the spring bolt on the height adjustment and carefully allow the
carriage with the torch to slide down the adjusting rail.