... collected, inquired and saved thru RS232 or 485 port on computer.(3)Smart control production rate according to various well.( ... coal powder & sand production in various well.(6)Main page on LCD: Voltage, Amps, Frequency, Downhole fluid level, Downhole ... production rate, Accumulative fluid volume, CBM production rate, Valve(on production line) position, Balance valve position.(7)Can Supply remote ...