Swan Analytical Instruments AMI Hydrazine, Operator'S Manual, Page: 44 / 86

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AMI Hydrazine
Maintenance
Disassemble
the flow cell
1 Switch off the instrument.
2 Stop the sample flow at the main tap before the sample inlet.
3 Open the grab sample tap [J] to empty the flow cell.
4 Remove all sensors, see Cleaning of Hydrazine sensor, p. 38 ,
Cleaning of Reference Electrode, p. 40 and temperature sen-
sor.
5 Put the rubber cap on the tip of the reference electrode and
plug cap on sensor plug.
6 Remove the following parts from the flow cell block [I], but with-
out however removing the flow cell block from the panel:
– Tube from sample inlet to DIPA bottle [B]
– Tube from DIPA bottle to hydrazine sensor [C]
– Constant head cover [D]
– Constant head tube [E]
– Overflow tube to waste (long) [G]
– Overflow tube to sensor (short) [H]
– Grab sample tap [J]
– Sample inlet [M] and grab sample outlet (not visible)
– Filter vessel [P]
– Filter [O]
– Sample outlet [R]
– Hall-Effect sensor [N]
– Flow regulating valve [L]
7 Clean all acrylic parts with a soft brush (e.g. a bottle cleaner)
and soapy water. Remove calcareous deposits with a common
household deliming agent with standard concentrations.
8 Clean the bores of the flow cell block with pipe cleaners.