Wasserlab Micromatic DA Manual Del Usuario página 28

9.3 RO membrane replacement
The RO membrane should last for at least 2 years.
The symptoms that indicate that the membrane must be
replaced are:
- Decrease in the flow rate
- Increase in resin cartridge consumption
The instructions for RO membrane replacement are provided
with the membrane.
10. Calibration
The equipment is delivered adjusted and calibrated ex-works.
The equipment can be calibrated and adjusted at any time by
the Technical Assistance following a calibration pattern
according to international standards. It is recommended to do
this once a year.