Maintenance; Maintaining The Measuring System - Endress+Hauser Mycom S CLM 153 Operating Instructions Manual

Mycom S CLM 153
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Endress+Hauser
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Maintenance

The transmitter Mycom S CLM 153 itself does not contain wear parts and is
maintenance free.
Measuring point maintenance comprises:
• Cleaning of assembly and sensor,
• Inspecting cables and connections,
• Calibration (s. page 81).
Warning!
Danger to persons. If you have to remove the sensor for servicing or calibration work,
pay attention to the hazards caused by pressure, temperature and contamination.
Caution!
Remember that any maintenance work on the instrument, assembly or sensors may
have impacts on process control and the process itself.
7.1

Maintaining the measuring system

7.1.1 Cleaning
Depending on the process, and as far as necessary, the assembly, cables and sensor
must be cleaned externally before inspection and calibration. For your own safety
always follow the safety instructions (see above). If necessary wear protective clothing.
Remove dirt and deposits:
The selection of cleaning agent depends on the type of soiling. The most frequent
soiling and the associated cleaning agents are listed in the table below:
Type of soiling
Greases and oils
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Warning!
Danger of caustic burns! Protect your hands, eyes and clothing when you use the following detergents.
Calciferous deposits, metal hydroxide deposits,
heavy biological deposits Light biological deposits
Sulphide deposits
Protein deposits
Light biological deposits
Cleaning agent
Substances containing tensides (alkaline) or water-
soluble organic solvents (e.g. alcohol)
3% HCl
or with ChemoClean:
HCl (10%) in injector thinned to approx. 3%
Mixture of hydrochloric acid (3%) and
thiocarbamide (commercially available)
Mixture of hydrochloric acid (0.1 molar) and
pepsin (commercially available)
Water under pressure
7 Maintenance
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