Fluorescence Method Dissolved Oxygen Analyzer is based on the principle of fluorescence quenching, blue light irradiates to the fluorescent material to make the fluorescent material excitate red light, because the oxygen molecules can take away the energy (quenching reaction), the time and intensity of red light and the concentration of oxygen molecules are inversely proportional. By measuring, the phase difference is excitated between the red light and the reference light, then to calculate the concentration of oxygen molecules by corresponding to the internal calibration value. By adopting innovative new fluorescent technology, no membrane and electrolyte is needed, almost no maintenance, excellent performance, easy to operate, no oxygen consumed, can be applied to any occasion, including those low water cycle.
Application
Waste water Treatment
Surface Water
Aquaculture
Features
Features
Technical Data
Measurement parameter |
Measuring range: 0 - 20.00ppm / 0 - 200%, 0 -
60ºC Resolution: 0.01ppm / 1%, 0.1ºC Accuracy: ±0.1ppm or ±1% |
Input | Measuring sensor: innoSens 450 optical DO sensor |
Output |
Analog Output 1: 4-20 mA isolated current output for Dissolved Oxygen, it can be made to represent any segment of the measuring scale Load: Max 600Ω Analog Output 2: 4-20 mA isolated current output for TEMP., it can be made to represent any segment of the measuring scale Load: Max 600Ω |
Relay 1&2 (Alarm) |
Operation: ON/OFF selectable action : High / Low Set Point: High/10.00 ppm; Low/4.00 ppm (adjustable) Hysteresis: 0.01 ppm (adjustable) Relay contacts: 5A/250VAC;5A/30VDC |
Relay 3 (Washing Relay) |
Wash interval: 0.1~1000hour Wash time: 1~1000s Relay contacts: 5A/250VAC;5A/30VDC |
Interface |
RS 485 Modbus RTU |
General Information
Power supply | 90 - 260V AC, 50/60Hz; 24VDC(Optional) |
Operating temperature | 0 - 60 ºC |
Storage temperature | -20 - 70 ºC |
Humidity | Max. 90% rH at 40ºC (non-condensing) |
LCD Display | Dissolved oxygen value, temperature value and relay status |
Language | Chinese / English |
Passcode | Set mode: 0022, Calibration mode: 0011 |
Protection grade | IP65 |
Dimensions | 160 * 166 * 73mm |
Installation | Wall Mounting |
Weight | 1Kg |