Proservo
Hauser
23
Advanced Maintenance
Maintenance Prediction
Proservo NMS 5/7 will provide advance warning of required maintenance such as replacement of worn wire
etc. The operating life-span of electrical and mechanical parts of the Proservo NMS 5/7 are factory set within
the instruments memory. This information is checked involving with the built-in clock and compared and
registered in the instrument.
Automatic Displacer Weight
Compensation
The displacer can be checked for buildup or corrosion by comparing the measured weight of the displacer in
the air with the pre-programmed displacer weight. Proservo NMS 5/7 can be set to the periodical check for
the displacer weight, and any deviations in the weight will then be corrected and an alarm or memo initiated.
Automatic Compensation of
Wire Length
When the displacer is moved from the level position to the reference point (mechanical stop within the
instrument), the calibration can be checked. If there is any deviation outside the tolerance, then the instrument
will emit an alarm. If the deviation is within the tolerance (set by the customer), then an automatic recalibration
will be done. This function can be working manually or automatically in preset time intervals.
Maintenance
The maintenance record can be accessed via the matrix and will provide information of alarm data (e.g. date,
time, alarm type). A memo function allows the user or an E+H Service Engineer to enter maintenance data
manually.
Proactive Safety
Proactive safety diagnostic function warns of mechanical failure, and outputs maximum level value, e.g. 99999
to local display and fieldbus.
