Jarak ke permukaan air diukur dengan mengalikan waktu rambat, dimana pulsa gelombang mikro yang ditransmisikan ke permukaan air dipantulkan ke permukaan air dan diterima, dengan 1/2. Ketinggian air dihitung dengan mengurangkan jarak ini dari ketinggian pemasangan. Gelombang mikro memungkinkan pengukuran yang stabil di sungai tanpa dampak dari kondisi lingkungan dan suhu subjek pengukuran. Microwave yang digunakan bertransmisi berdaya rendah, sehingga tidak menimbulkan dampak terhadap tubuh manusia atau lingkungan.
■ Pengukuran stabil tanpa dampak termal atau pneumatik
■ Transmisi berdaya rendah dan tidak menimbulkan dampak terhadap tubuh manusia atau lingkungan
■ Pengukuran non-kontak dengan dampak minimal dari kayu apung atau sedimen
Sensor
Model | MIR-1 |
Measuring method | Microwave pulse radar |
Microwave frequency | 5.8GHz |
Measuring range | 0 to 10m(for river),0 to 20m(for still-water level) |
Dead zone | up to 0.5m below the flange mount position |
Accuracy | ±10mm |
Output signal | DC4 to 20mA |
Power supply | DC16 to 36V (supplied from the water level coder) |
Operating condition (temperature, humidity) | -20℃ to +70℃ (No freezing) |
Material | Body：Aluminum die casting Antenna：SUS316 |
Dimensions | 265W x 584H x 265D mm |
Weight | Approx.5kg |
Water Level Coder
Model | WLC3-AR|A|－|B|C|D|E|F|G|H| A) Sensor input 1:1 sensor, 2:2 sensors B) Analog output 0:No, 1:4 to 20mA, 2:0 to 5V, 3:0 to 10mV C) BCD output 0:No, 1:Yes 1 for each,2= Yes 2 for each D) Comparison output 0:No, 1:Yes E) Printer 0:No F) SD Card slot 0:None, 1:Yes G) Power supply D1:DC12V, A1:AC100V H) Serial output Blank:RS232C, R4:RS422 |
Display•Operation | LCD touch panel |
Processing functions | Average calculation None averaging Moving average 20 sec, 1 min, 5 min, 10 min(every 1 sec) or (every 2 sec) Weighted average 5 sec, 10 sec, 15 sec (every 1 sec) Level Setting -999.999m to +999.999m |
Input type | Microwave sensor(DC4 to 20mA) |
Number of input | 2 channels(Max.) |
Power supply | Select from DC12V or AC100V 50/60Hz |
Dimensions | 480W x 99H x 300D mm (excluding protruding parts) |
Weight | 7kg or less |
Output | 1) Analog output 2 channels at 1 input, select from 4 to 20mA, 0 to 5V or 0 to 10mV 2) BCD output 2 channels(Max.) at 1 input, BCD output 5 digits with odd parity 3)Comparative output 8 points at 1 input(A,B,C,D≦H or A,B, C,D≧H), Non-voltage A contact (Photo MOS relay output) 4)Card recording Recording media： SD Card(Maximum 2GB) Recording interval： No, 1, 2, 5, 10, 15, 20, 30(min), 1, 2, 3, 6(hour) Recording capacity： 1 year or more(at 1 min recording) |
