Battery Powered Liquid Flow Meter

The models LFA 101 (single channel version) and LFA 202 are inline ultrasonic flow meter for filled liquid pipelines for applications like flow monitoring and custody transfer for filled liquid pipelines. The meter complies with requirements of EN ISO 4064.

The flow meter is powered by a built-in lithium battery with a nominal voltage of 3.6 V. The maximum battery capacity is not less than 19 Ah. Battery life is at least 10 years.

The meter automatically creates and stores in its non-volatile memory the following logs for measured parameters (flow rate, accumulated flow, medium pressure and temperature)
1. Hourly – for each previous hour (4096 records);
2. Daily – for each previous day (2048 records);
3. Monthly – for each previous month (256 records).
4. Per minute – for each previous minute (4096 records);

The flow meter also records in separate archives “Alarms and Errors” (2048 records);
As well as “Interventions”, i.e. configuration changes (2048 records).

Operational (per second) logs (86,400 records) are formed on external media, in
the mode of continuous transmission via RS485 ports. In this log, the flow meter calculates
and records the operating time, the time of partial incapacity, as well as the time of
complete incapacity.

In case of power failure, the logs remain intact for not less than 100 years