Replacing the static mixer. Endres+Hauser Stamolys CA71SI

Stamolys CA71SI

Endress+Hauser

1

Maintenance

V1

2

V2

3

V4

V3

7

Fig. 20: Valves and valve hoses

5

6

3

4

7

1

2

V1-4 Valves 1, 2 and 4 (if present)

V3 Valve 3, two channel switch (optional)

Sample

To the pump

Y-piece, connecting hose to valve 1, behind it

Outlet hose

Hose valve 2, front, standard

Hose valve 2 back, cleaning agent

Hose valve 1 front, sample

6 5

7.5

Replacing the static mixer

To replace the mixer, proceed as follows:

1.

Rinse first with water and then with air (see SERVICE).

2.

Unscrew the four screws on the photometer housing and remove it.

3.

Disconnect the mixer from the photometer and from the T-piece below the photometer housing or release the mixer from the holder.

4.

Remove the old mixer and insert the new one.

5.

Connect the new mixer to the photometer and the T-piece again.

6.

Attach the photometer housing and screw it down.

7.

After installation, refill the hoses with sample, standard or cleaning agent (SERVICE).

8.

Carry out an offset calibration and a calibration.

4 a0001730

7.6

Replacing the photometer optical cell

NOTICE

Electrostatic discharge (ESD) can cause damage to electronic assemblies

► Discharge yourself at a protective earth before handling the assemblies.

Removing the old cell

1.

Rinse first with water and then with air (see SERVICE).

2.

Switch the analyzer off.

3.

Unscrew the four screws on the photometer housing and remove it.

4.

Release the nuts from the guide screws and remove the photometer completely.

5.

Unscrew the four screws on the side of the photometer on which there is no ribbon cable.

6.

Take the photometer's electronics apart.

7.

Take out the cell and remove the hoses.

NOTICE

Traces of grease on the optical surfaces can cause corrupted measured values

► Do not under any circumstances touch the optical window of the cell with your fingers.

39