Suzhou Delfino Environmental Technology Co., Ltd.
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The Two-Electrode System Amperometric Ozone Sensor Is Used For All Water Treatment
Water treatment effect monitoring: Ozone is a strong oxidant widely used in water treatment processes, especially in drinking water, industrial water, wastewater treatment, etc. Ozone can effectively kill pathogenic microorganisms in water, such as bacteria, viruses and algae, and can oxidize organic pollutants, odor substances and color in water. Therefore, monitoring the ozone concentration in water helps to ensure the effect of water treatment.
Safety and health considerations: Although ozone has a significant improvement effect on water quality, high concentrations of ozone itself may be harmful to human health and the environment. Excessive ozone concentration in water may be toxic to the human body, especially if ozone is left in drinking water. Therefore, monitoring ozone concentration can ensure that it is within a safe range and prevent excessive residue.
Ozone consumption rate monitoring: During water treatment, ozone consumption will be affected by water quality, such as organic matter, ammonia nitrogen or other chemicals in water. By monitoring the ozone concentration in water, the consumption of ozone can be evaluated, and the dosage can be adjusted to ensure the effective use of ozone and avoid waste.
Environmental regulation: Ozone is an important disinfectant in the water treatment process, especially in areas with strict environmental protection requirements. Monitoring the ozone concentration in water can ensure compliance with regulations and environmental protection standards. For example, the US EPA and other regulatory agencies sometimes require monitoring of ozone residuals to ensure its disinfection effect on water quality and avoid negative impacts on the ecological environment.
Water treatment technology optimization: By regularly testing the ozone concentration in water, the operation of the water treatment system can be optimized, and the ozone addition and contact time can be improved, thereby improving disinfection efficiency and reducing operating costs. Monitoring data can help identify potential problems or optimize system configuration.
The two-electrode system amperometric ozone sensor 10.1, used for all water treatment, including seawater. Such as tap water, deionized water, RO-reverse osmosis membrane system has mechanical resistance, and the membrane system has strong resistance to surfactants.
The functional characteristics of the ampere film ozone sensor include high sensitivity and fast response, which can accurately measure the ozone concentration in water. Its advantages are strong anti-interference ability, suitable for various water quality environments, and long service life. It is suitable for drinking water and industrial water treatment to ensure water quality safety.
Specifications
| |
OZ10.1 |
| Indicator | Ozone |
| Application | All kinds of water treatment, also sea water, e. g.
The membrane system is mechanical resistant. |
| Measuring system | Membrane covered, amperometric 2-electrode system |
|
Electronic | Analog version: - voltage output - not galvanically isolated electronics - analog internal data processing - output signal: analog (analog-out/analog) Digital version: - electronic is completely galvanically isolated - digital internal data processing - output signal: analog (analog-out/digital) or digital (digital-out/digital) mA-version: - current output analog - not galvanically isolated electronics - output signal: analog (analog-out/analog) |
|
Information about the measuring range | The actual slope of a sensor can vary production-related between 65% and 150% of the nominal slope Note: With a slope > 100% the measuring range is reduced accordingly. (Ex.: 150% slope → 67% of the specified measuring range) |
| Accuracy after calibration at repeatability conditions (15°C, pH 7.2 in drinking water) of the upper full scale | -Measuring range 2 mg/l: at 0.4 mg/l <1% at 1.6 mg/l <3% - Measuring range 20 mg/l: at 4 mg/l <1% at 16 mg/l <2% |
| Limit of detection | -Measuring range 2 mg/l: 0.02 ppm |
|
Working temperature | Measuring water temperature: 0 … +45 °C (no ice crystals in measuring water) |
| Ambient temperature: 0 … +55 °C | |
| Temperature compensation | Automatically, by an integrated temperature sensor |
|
Max. allowed working pressure | Operation without retaining ring: - 0.5 bar - no pressure impulses and/or vibrations |
| Operation with retaining ring in Flow cell: - 1.0 bar, - no pressure impulses and/or vibrations (see option 1) |
|
OZ10.1 | |||
| Flow rate (Incoming flow velocity) | Approx. 15-30 l/h (33 – 66 cm/s) in flow FLC, small flow rate dependence is given | |||
| pH-range | pH 4 – pH 9 | |||
| Run-in time | First start-up approx. 1 h | |||
| Response time | T90 : approx. 8 min. | |||
| Zero point adjustment | Not necessary | |||
| Calibration | At the device, by analytical determination, e. g. DPD-4 method (DPD-1 + DPD-3) Advice: when used in sea water DPD-4 method (DPD-1 + DPD-3) is not selective to ozone | |||
| Interferences | Cl2: OZ10.1H: factor 0.015 | |||
| Absence of the disinfectant | Max. 24 h | |||
|
Connection | mV version: Modbus version:
4-20 mA version: | 5-pole M12, plug-on flange 5-pole M12, plug-on flange
2-pole terminal or 5-pole M12, plug-on flange | ||
| max. length of sensor cable (depending on internal signal processing) | analog | < 30 m | ||
| digital | > 30 m are permissible Maximum cable length depends on application | |||
| Protection type | 5-pole M12 plug-on flange: IP68 2-pole terminal with mA-hood: IP65 | |||
| Material | Elastomer membrane, PVC-U, stainless steel 1.4571 | |||
|
Size | Diameter: Length: mV version Modbus version 4-20 mA version | approx. 25 mm approx. 190 mm (analog signal processing) approx.. 205 mm (digital signal processing) approx. 205 mm approx. 220 mm (2-pole-terminal) approx. 190 mm (5-pole-M12) | ||
| Transport | +5 … +50 °C (sensor, electrolyte, membrane cap) | |||
|
OZ10.1 |
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Storage | Sensor: dry and without electrolyte no limit at +5 … +40 °C |
| Electrolyte: in original bottle protected from sunlight at +5 … +35 °C min. 1 year or until specified EXP-Date | |
| Membrane cap: in original packing no limit at +5 … +40 °C (used membrane caps can not be stored) | |
|
Maintenance | Regularly control of the measuring signal, min. once a week The following specifications depend on the water quality: Change of the membrane cap: once a year (depending on the water quality) Change of the electrolyte: every 3 - 6 months |
|
| Option 1: Retaining ring |
- When operating with pressures >0.5 bar in flow cell - Dimensions retaining ring 29 x 23.4 x 2.5 mm, slitted, PETP - Different positions for groove selectable(on request) |
| |
Technical Data
1. OZ10.1 (Analog output, analog internal signal processing)
A potential-free electrical connection is necessary as the sensor electronic is not equipped with a galvanical isolation.
| | Measuring range in ppm | Resolution in ppm | Output Output resistance | Nominal slope in mV/ppm | Voltage supply | Connection |
| OZ10.1H-M12 | 0.005…2.000 | 0.001 |
0…-2000 mV 1 kΩ | - 1000 |
±5 - ±15 VDC 10 mA | 5-pole M12 plug-on flange
Function of wires: PIN1: measuring signal PIN2: +U PIN3: -U PIN4: signal GND PIN5: n. c. |
| OZ10.1N-M12 | 0.05…20.00 | 0.01 | - 100 | |||
| OZ10.1HUp-M12 | 0.005…2.000 | 0.001 |
0…+2000 mV 1 kΩ | +1000 |
10 - 30 VDC 10 mA | 5-pole M12 plug-on flange Function of wires:
PIN1: measuring signal PIN2: +U PIN3: power GND PIN4: signal GND PIN5: n. c. |
| OZ10.1Up-M12 | 0.05…20.00 | 0.01 | +100 |
(Subject to technical changes!)
2. OZ10.1 (analog output, digital internal signal processing)
analog-out / digital
- The power supply is galvanically isolated inside of the sensor.
- The output signal is galvanically isolated too, that means potential-free.
| | Measuring range in ppm | Resolution in ppm | Output Output resistance | Nominal Slope in mV/ppm | Power supply | Connection |
| OZ10.1H-An-M12 | 0.005…2.000 | 0.001 | analog 0…-2 V (max. -2.5 V) 1 kΩ | - 1000 |
9-30 VDC approx. 20-56 mA | 5-pole M12 plug-on flange
Function of wires: PIN1: measuring signal PIN2: +U PIN3: power GND PIN4: signal GND PIN5: n. c. |
| OZ10.1N-An-M12 | 0.05…20.00 | 0.01 | - 100 | |||
| OZ10.1H-Ap-M12 | 0.005…2.000 | 0.001 | analog 0…+2 V (max. +2.5 V) 1 kΩ | +1000 | ||
| OZ10.1N-Ap-M12 | 0.05…20.00 | 0.01 | +100 |
(Subject to technical changes!)
3. OZ10.1 (digital output, digital signal processing)
-The power supply is galvanically isolated inside of the sensor.
-The output signal is galvanically isolated too, that means potential-free.
| Measuring range in ppm | Resolution in ppm | Output Output resistance | Power supply | Connection |
| OZ10.1H-M0c | 0.005…2.000 | 0.001 | Modbus RTU
There are no terminating resistors in the sensor. | 9-30 VDC
approx. 20-56 mA | 5-pole M12 plug-on flange Function of wires: PIN1: reserved PIN2: +U PIN3: power GND PIN4: RS485B PIN5: RS485A |
| OZ10.1N-M0c | 0.05…20.00 | 0.01 |
(Subject to technical changes!)
4. OZ10.1 4-20 mA (analog output, analog internal signal processing)
A potential-free electrical connection is necessary as the sensor electronic is not equipped with a galvanical isolation.
4.1 Electrical connection: 2 pole terminal clamp
| | Measuring range in ppm | Resolutio n in ppm | Output Output resistance | Nominal slope in mA/ppm | Voltage supply | Connection |
| OZ10.1MA0.5 | 0.005…0.500 | 0.001 | 4…20 mA uncalibrated | 32.0 |
12…30 VDC RL 50Ω…RL 900Ω |
2-pole terminal (2 x 1 mm²)
Recommended: Round cable 4 mm 2 x 0.34 mm² |
| OZ10.1MA2 | 0.005…2.000 | 0.001 | 8.0 | |||
| OZ10.1MA5 | 0.05…5.00 | 0.01 | 3.2 | |||
| OZ10.1MA10 | 0.05…10.00 | 0.01 | 1.6 | |||
| OZ10.1MA20 | 0.05…20.00 | 0.01 | 0.8 |
(Subject to technical changes!)
4.2 Electrical connection: 5 pole M12 plug-on flange
| Measuring range in ppm | Resolution in ppm | Output Output resistance | Nominal slope in mA/ppm | Voltage supply | Connection |
| OZ10.1MA0.5-M12 | 0.005…0.500 | 0.001 | 4…20 mA uncalibrated | 32.0 | 12…30 VDC RL 50Ω…RL 900Ω | 5-pole M12 plug- on flange
Function of wires: PIN1: n. c. PIN2: +U PIN3: -U PIN4: n c. PIN5: n. c. |
| OZ10.1MA2-M12 | 0.005…2.000 | 0.001 | 8.0 | |||
| OZ10.1MA5-M12 | 0.05…5.00 | 0.01 | 3.2 | |||
| OZ10.1MA10-M12 | 0.05…10.00 | 0.01 | 1.6 | |||
| OZ10.1MA20-M12 | 0.05…20.00 | 0.01 | 0.8 |
(Subject to technical changes!)
Spare Parts
| Type | Membrane cap | Electrolyte | Emery | O-ring |
| For all OZ10.1 | M10.3N | EOZ7/W, 100 ml Art. no. 11102 | S2 | 20 x 1.5 silicone |
(Subject to technical changes!)