OPTOD Optical Dissolved Oxygen & Temperature Sensor Optical technology:
The OPTOD sensor is based on luminescent optical technology and is approved by the ASTM International Standard Method D888-05.
Without calibration requirements, and thanks to an ultra low power technology, the OPTOD sensor is suitable for field work as well as long and short term monitoring.
With no oxygen consumption, this technology gives an accurate measure in all situations, even in very low oxygen concentrations.
Digital Technology:
The "smart" OPTOD sensor stores calibration and history data within the sensor. This allows you a "plug and play" system without re-calibration.
Digitally optimised measurement technology
* Optical luminescence technology requires minimal maintenance
* Digital sensor: Modbus RS-485
* No calibration required and therefore little to no drift occurs
* Robust and Watertight
OPTOD Optical Dissolved Oxygen & Temperature Sensor Applications
* Industrial effluent treatment
* Urban waste water treatment
* Surface water monitoring
* Drinking water
OPTOD Optical Dissolved Oxygen & Temperature Sensor Specifications
* Measurement ranges: 0.00 to 20.00 mg/L
* Resolution: 0,01
* Accuracy: +/- 0.1mg/L, +/- 0.1 ppm, +/- 1 %
* Response time: 90% of the value in less than 60 seconds
* Temperature compensation: Via CTN
* Operating temperature: -10°C to +60'C
* Signal interface: Modbus RS-485 (standard) and SDI-12 (option)
* Sensor power-supply: 5 to 12 volts
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WQ401 Dissolved Oxygen Sensor Description WQ401 Dissolved Oxygen Sensor is a rugged and reliable water oxygen measuring device. The WQ401's sensor is attached to 25 ft of marine grade cable, with lengths up to 500 ft available upon request. The sensor's output is 4-20 mA with a three wire configuration. The sensor's electronics are completely encapsulated in marine grade epoxy within a stainless steel housing. The unit uses a removable shield and dissolved oxygen element for easy maintenance. WQ401 Dissolved Oxygen Sensor Features * Measure dissolved oxygen in situ * Fully encapsulated electronics * 4-20 mA output * Marine grade cable with strain relief * Stainless steel housing * Replaceable dissolved oxygen element WQ401 Dissolved Oxygen Sensor Applications Ideal for stream and lake monitoring, aquaculture studies, baseline analyses, mitigation monitoring, and other environmental applications. WQ401 Dissolved Oxygen Sensor Specifications * Output: 4-20 mA * Range: 0 to 100% saturation, 0 to 8 ppm, temperature compensated to 77'F (25'C) * Accuracy: ±0.5% full scale * Maximum Pressure: 40 psi * Operating Voltage: 10 to 36 VDC * Current Draw: 15.5 mA plus sensor output * Warm-up Time: 10 seconds minimum * Operating Temperature: -40 to +131'F (-40 to +55'C)
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SANDI SERIES charging module is for electric vehicle charging station. With single-phase non neutral conductor AC input, it has the advantages of high efficiency, high power density and low harmonic. Functional details 1. Hot plug Plug technology is applied to the charging module to provide convenience for installation and maintenance. The access of the charging module to the system shall not disturb the output voltage of the system. 2. Advanced current sharing technology Under constant voltage working mode, the charging modules can share current automatically within 10S, with degree of unbalance less than �±0.5A. 3. Control of input limited power Refer to Fig. 1-10 for the relation between the output power and input voltage of the charging module. When the input voltage is within 360 Vac ~ 450 Vac (return difference is less than 5V), the module can output the maximum power of 20 KW; when the input voltage is within 260 Vac ~ 320 Vac, the module can still work normally under limited power mode. 4. Control of output constant power When there is a rated input voltage, the output power of the module is 20 KW. Refer to Fig. 11 for the relation between the output voltage and the output current of the module. The SD75050 module uses two operating modes with output voltage ranges of 50 to 750V. The module only selects the operating mode based on the value of the received demand voltage, and does not select the operating mode based on the actual output voltage. 5. Temperature limited power 6. Regulation of output current limiting point 8. Regulation of output voltage The output voltage of the module can be regulated constantly through the external monitoring module, with regulation range of 50Vdc ~ 750Vdc and minimum regulation step of 0.1 Vdc. 9. Fan control The built-in processor of the module can regulate the speed of the fan according to the internal temperature and output current of the module. 10. Protection of input overvoltage/ voltage shortage 11. Output overvoltage protection The overvoltage protection point is 260Vdc ~770Vdc (�±10 Vdc). Default is 778Vdc.The module can be started after manual intervention upon overvoltage protection. 12. Over-temperature protection The environmental over-temperature protection point is 80�°C. When the DC panel has a temperature over 100�°C, the module will stop working; when the DC panel has a temperature below 90�°C, the module will automatically work again. 13. Protection of internal bus fault When the internal bus voltage of the module is beyond the overvoltage/ voltage shortage protection point, the module will be powered off automatically. At this time, there is no output from the module and the fault indicator light is on. 14. Short circuit protection In case of short circuit of the module, it will be subjected to protective shutdown and the red indicator light of the panel is on, and this condition will be transmitted to the monitor of the "module fault".
This product is made of high quality oxygen-free copper conductors, fluorinated plastics, Silicone rubber resistant to high / low quality materials as insulation and sheathing materials, Has good heat resistance, heat aging resistance and excellent electrical properties, Meet the conditions for saft operation under the particularity of wire and cable, and provides High cable life and improve the economic and social benefits.