Bronkhorst®
Instruction Manual ES-FLOW™
9.17.116B
44
4
Maintenance
4.1
General
No regular maintenance is required if the ES-FLOW is operated properly, with clean media, compatible with the wetted
materials, avoiding pressure and thermal shocks and vibrations. Units may be purged with a clean, dry and inert gas.
In case of severe contamination, cleaning the inside of the device may be required. After cleaning, the instrument has to be
re-calibrated.
Inexpertly servicing instruments can lead to serious personal injury and/or damage to the instrument or the system it is
used in. Therefore, servicing must be performed by trained and qualified personnel. Contact Bronkhorst for information
about cleaning and calibration. Bronkhorst has a trained staff available.
4.2
Calibration
The ES-FLOW is factory calibrated. Bronkhorst certifies that the instrument meets the rated accuracy. Calibration is
performed using measurement standards traceable to the Dutch Metrology Institute (VSL). Calibration certificates are
included in the scope of delivery.
Periodical inspection, recalibration or verification of the accuracy may be subject to individual requirements of the end user.