The capacitance formed by the sensing probe and the water is measured which is directly proportional to the level of water known as ‘Head’. By measuring heads at two points called ‘High Head’ and ‘Low Head’, a difference can be calculated. This difference is ‘Loss of Head’. MPLOH measures the heads in mm and thus a calibration at site might be required. The two sensors digitally send their level values of head heights in digital format over the same set of wires, a shielded cable should be used to assure flawless operation.
Latest RISC core microcontroller technology
‘Heads’ and ‘Difference’ are measured in mm from -400mm to 1500mm. -50.0% to +150.0% is also provided for 4-20mA associated Head / Difference
Multi-purpose 5 digit Seven Segment LED display for best resolution and better viewing from distance
Two wire Pulse Coded Digital communication enabling two sensors to be connected on same pair of wires to the evaluation unit. Supporting as far as 1 KM distance between Sensor and Evaluation Unit with shielded two core cables
Two independent potential-free relays, providing flexibility of selecting six combinations of switching
Galvanically isolated true two wire 4-20mA proportional to 0.0% and 100.0% level is available for remote indication purposes
Two wire implementation solves the malfunction problems that occurs with various PLC 4-20 input interfaces and thus better suits for higher-end automation.
4-20mA loop can handle 700 Ohm loop resistance with internal isolated supply. The loop resistance can be 1K Ohm for external DC Supply of 24 Volts
W: Cast Aluminium weatherproof IP-67 Stoving enamel painted
3 X 1/2” BSP / NPT gland brass
Pipe SS (Still Well) extended up to 3000mm
Threaded Mounting: 1-1/2”, 2” BSP/NPT
Flanged Mounting: As per specification
S4: SS-304
S6: SS-316
16VDC @ 5mA derived from Sensor Communication Interface of Evaluation Unit
250Khz to 100Khz
Reverse Frequency Measurement
Ambient: 20C to +60C
10 counts per PF
Digitally Encoded Current (8mA – 16mA) Pulse
Universal Supply: 90-265 V AC, 50 Hz
24 V DC
03 SPDT Relay outputs
0-100% Display
4-20mA current output
Measuring differential level In Open Channel
Water treatment plants
Effluent treatment plants
Filtration stations
Seven Segment Display
LED for 3 Relay Outputs