Endress+Hauser Analytik Jena multi EA 5000 User Manual

Maintenance and care multi EA 5000
152
ð Replace the sulfuric acid daily. High sample throughput may require more frequent
replacement.
} Exit the multiWin software and switch off the analysis system. Switch of the detec-
tion module via the switch on the rear of the device.
} Allow the heated gas transfer line to cool or wear heat-proof gloves when replacing
the sulfuric acid.
CAUTION!Risk of burns at the ends of the heated gas transfer line! The ends can
achieve temperatures of up to 100°C during operation.
} Remove the banjo bolt from the connector, separating the heated gas transfer line
from the sulfuric acid container.
} Disconnect the PTFE connection and remove hose 20 from the safety attachment.
} Pull the sulfuric acid container with its remaining components out of the holding
clamps and remove it from the module.
Attach the sulfuric acid container to a secure stand.
} For the "high sensitive" measuring cell: Remove the gas inlet tube from the detection
module with PTFE screw joint and hose 20.
} Remove the safety attachment from the sulfuric acid container.
NOTICE!The bases of the PTFE screw joints remain on the safety attachment, the
hose and the gas inlet tube.
} Unscrew the connectors for the heated gas transfer line from the sulfuric acid con-
tainer. Remove the thin hose from the container.
CAUTION!Sulfuric acid residue can still be present on the hose.
} Empty all of the sulfuric acid into a beaker via the drain cock. Dispose of the sulfuric
acid.
} Rinse the sulfuric acid container and the safety attachment multiple times with ultra-
pure water and then rinse with ethanol or methanol:
} Rinse hose 20 including the PTFE screw joint with ultrapure water and then with
ethanol or methanol.
} Dry the cleaned components, e.g., by blowing it through with an inert gas.
} Close the drain cock on the sulfuric acid container. Insert a funnel into the container.
Fill the sulfuric acid container with 15ml of concentrated sulfuric acid.
} Install the filled sulfuric acid container in the detection module in reverse order (→
"Installation" 60).
NOTICE!Ensure the proper fit of the conical nipples when connecting the gas trans-
fer line and the PTFE connectors.
} For leak protection: Place the beaker and a petri dish under the sulfuric acid con-
tainer in the detection module.
ü The detection module is ready for operation again.
14.11.2Maintenance of the measuring cell
WARNING
Risk of chemical burns
The electrolyte solution contains high concentrations of acetic acid.
¡ Wear protective clothing when replacing the electrolyte solution.
¡ Observe all instructions and specifications in the safety data sheet.

Endress+Hauser Analytik Jena multi EA 5000 Specifications

General

Brand	Endress+Hauser
Model	Analytik Jena multi EA 5000
Category	Measuring Instruments
Language	English