Scientific devices [bombay], an iso 9001:2000 certified company, provides flow indicator totalisers. There are some optional attatchments provided with these totalisers which include: 24v dc auxiliary supply, alarm contacts on processed input, retransmission output on processed input, square rooting on input, microprocessor based totaliser with batching controller, rs 232/485 communication port, parallel printer port, etc. Technical specifications include: input - 4 to 20 ma/0 to 20 ma/0 to 5 v/frequency; display - 3½ digit/4½ digit, 0.5" red led/lcd; totalising counter - 6-digit electromech/6-digit led/8-digit lcd; power supply - 230 v ac/24 v ac/110 v ac; accuracy - better than ±0.5% of span for both flow rate and totalisation, input clipping [i.E., low flow cut off] - 0 to 10% of span.
