Automatic monitoring instrument for groundwater level

Description :

　　oneTechnical parameters of automatic groundwater level monitoring probe

　　Output data content: water level, pressure, water temperature, internal battery power, time;

　　Water level range: 0-50m;

　　Probe operating temperature: (-10~70) ℃;

　　Water level accuracy: 0.05% FS;

　　Temperature accuracy: ± 0.1 ℃;

　　Resolution: ± 0.002% F · S (water level), ± 0.02 ℃ (temperature);

　　Repetitive error: ＜ ± 1cm;

　　Clock error: ± 5 minutes/year;

　　Measurement frequency: 1 minute to 99 hours/time;

　　Battery life: 10 years (1 hour/time);

　　Power supply voltage: (6-30) VDC (external power supply voltage), 3.6V (internal lithium battery voltage);

　　Static working current: (5-10) μ A;

　　Temperature compensation range: (-20~80) ℃;

　　Record storage: 50000 data records (4MB capacity);

　　Communication method: RS485 interface MODBUS-RTU protocol;

　　Sensor material: titanium alloy or stainless steel;

　　Sensor size: φ 22.2 × 186mm;

　　Sensor protection level: IP68;

　　Cable extension: ＜ ± 2cm

　　twoTechnical parameters of telemetry terminal for automatic monitoring of groundwater level

　　Data storage: 30000 records;

　　Clock error: ≤ 1s/d;

　　Communication interface: RS485/422;

　　Network transmission standard: GSM/GPRS;

　　Network standard frequency band: 850/900/1800/1900MHz quad band;

　　Network protocols: TCP/UDP, SMS;

　　Number of network connections: not less than 2;

　　Data reception rate: ≥ 95%;

　　Shell material: ABS;

　　Size: φ 82 × 218mm;

　　Protection level: IP67;

　　Power supply battery: 3.6V (two sections);

　　Equipped with atmospheric pressure compensation function, capable of on-site measurement of air pressure values;

AfterSalesService :

• Automatic monitoring instrument for groundwater level