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German Shiptai S200DOS online dissolved oxygen analyzer
The new fluorescence method electrode with built-in diode emits blue light to the photosensitive layer at the front end of the electrode to excite red
Product details
German Shiptai S200 DOS Onlinedissolved oxygen analyzer
1overview
S200 DOSOnline dissolved oxygen analyzerUsed for measuring surface waterDissolved oxygen concentration of water samples such as tap water, sewage, industrial water, and fishery water.The controller is easy to operate, with 2 set points and proportional control functions, and is equipped with a series of interfaces (such as RS485). The S200 DOS is equipped with wall mounted accessories and input and output signals with shielding protection functions.
IImeasuring principle
The new fluorescence method uses a diode embedded in the electrode to emit blue light to the photosensitive layer at the front of the electrode, which excites red fluorescence. Due to the quenching effect of oxygen molecules, the time and intensity of exciting red light are inversely proportional to the concentration of oxygen molecules. By detecting the intensity of red light and calculating the dissolved oxygen concentration through automatic temperature compensation.
IIIOnline dissolved oxygen analyzerTechnical Characteristics
1Fluorescence method principle, membrane free and electrolyte free design, low maintenance volume and cost.
2Fast response time, no need for polarization time.
3Long term use without drift, no need for calibration and maintenance.
4No requirements for flow velocity, not affected by various substances in water, stable measurement results.
4Online dissolved oxygen analyzerTechnical specifications of controller
| operation temperature | -20—55℃ (maximum humidity not exceeding 90% at 40 ℃) |
| storage temperature | -20—65℃ |
| display | LCD display, 4x20 characters, digital backlight |
| Analog Output | 2 0/4-20mA, electrically isolated, freely configurable, maximum load of 500 Ω, resolution<0.01mA, leakage current 22mA |
| controller | Up to 4 individual controllers, switch control (hysteresis), P or PI control |
| control mode | Adjustable hysteresis switch controller, pulse pause controller, pulse frequency controller, continuous controller (analog output) |
| limiting value | Maximum limit of minimum and maximum adjustable time delay, controller value (0-9999 seconds) |
| digital input | Two digital inputs, such as contact control (switch input) or pulse input (flow measurement) |
| Relay | 3 relays |
| Two digital outputs that can be freely allocated to control outputs | |
| 1 as an alarm relay | |
| 1 potential free contact | |
| Maximum 250V, 6A, 1000VA | |
| Digital relay output | 2 digital outputs, can be freely allocated to control outputs, maximum 12V, 200mA |
| Digital Interface 1 | Modbus RTU from |
| Digital Interface 2 | Modbus RTU master, maximum power supply voltage 12V, 200mA, such as digital sensors |
| electromagnetic compatibility | Compliant with standardsDIN EN 50081-1And50081-2 |
| Shell material | ABS |
| size | 96×96×125Mm (height x width x depth) |
| weight | 1.5kg |
| power supply | 220VAC |
| protection grade | IP65 |
| authentication | CE certification |
5Technical parameters of dissolved oxygen electrode
| measuring principle | fluorescence |
| measuring range | 0-20mg/L |
| reproducibility | ±0.1ppm |
| accuracy | ±1% |
| response time | ﹤60 s |
| interfere | Not disturbed by other substances in the water |
| Sensor cap lifespan | 1 year |
| sensor cable | Standard 7-meter cable |
| Probe material | stainless steel |
| characteristic | Sensor pre calibration |
| correct | No calibration or maintenance required |
| operate temperature | 0 —60 ℃ |
| Operating Pressure | 5bar |
| temperature sensor | Built in temperature electrode, 0—60 ℃ automatic compensation |
| velocity of flow | No flow rate requirement |
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