Two-electrode system Chlorine Dioxide sensor CD10.1 Specially used to measure the concentration of chlorine dioxide in water. Used for used in all water treatment, mechanically strong membrane system, resistant to surfactants, high resistance to chemicals, optional range 0~0.5/2/5/10/20/200ppm.

The Amperometric Two-Electrode Chlorine Dioxide Sensor CD10.1 is used to detect chlorine dioxide in water and is widely used in water treatment, industrial wastewater monitoring and other fields. The following are the advantages and all functional features of this sensor:
High selectivity: It has high specificity for chlorine dioxide and can effectively avoid interference from other oxidizing substances.
High sensitivity: The sensor can detect low concentrations of chlorine dioxide in water, suitable for a variety of water quality conditions, and ensure accurate measurement results.
Quick response: The sensor can detect changes in chlorine dioxide concentration in a very short time, suitable for occasions where fast feedback is required.
Long-term stability: The coating protects the electrode from the influence of pollutants in the water, prolongs the service life of the sensor, and enables it to work stably for a long time.
Low maintenance requirements: The coating technology reduces electrode contamination, reduces the need for frequent cleaning and calibration, and reduces maintenance costs and workload.
Economical: Due to its long life and simple maintenance, it has a low cost of use and is suitable for long-term deployment in automatic monitoring systems.

Functional features:
Two-electrode system: The sensor uses a working electrode and a reference electrode to drive the electrochemical reaction through a potential difference to measure the redox current of chlorine dioxide in water.
Coating technology: The electrode surface of the sensor is covered with a breathable membrane, which only allows chlorine dioxide to pass through and react with the electrode, while isolating other pollutants in the water, reducing electrode contamination and extending the service life of the sensor.
Real-time online monitoring: The sensor is suitable for continuous online monitoring of chlorine dioxide in water, and can provide real-time feedback of water quality information around the clock to ensure the accuracy and reliability of process control.
Temperature compensation function: Some sensors are equipped with temperature compensation function, which can maintain the accuracy of measurement under different temperature environments and avoid errors caused by temperature fluctuations.
Low power consumption: Ampere sensors have low power consumption and are suitable for long-term use, especially in automated monitoring systems with limited power supply.
Anti-pollution design: In addition to coating protection, some sensors also adopt a special design that can work under complex water quality conditions, have stronger anti-fouling properties, and reduce the impact of floating objects or sediments.
Wide range of application scenarios: The sensor can be used in all water treatment industries to monitor the disinfection effect and residual amount of chlorine dioxide in water.

In general, the ampere coating two-electrode chlorine dioxide sensor combines the characteristics of high sensitivity, fast response, long-term stability and low maintenance requirements, and is suitable for accurate detection and long-term monitoring in various water qualities.

Scope of supply: CD10.1 sensor, membrane cap, electrolyte

	CD10.1
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. CD10.1 (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
CD10.1H-M12	0.005…2.00 0	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.
CD10.1N-M12	0.05…20.00	0.01		- 100
CD10.1L-M12	0.5…200.0	0.1		- 10
CD10.1HUp-M12	0.005…2.00 0	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.
CD10.1Up-M12	0.05…20.00	0.01		+100
CD10.1LUp-M12	0.5…200.0	0.1		+10

(Subject to technical changes!)

2. CD10.1 (analog output, digital 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
CD10.1H-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.
CD10.1N-An-M12	0.05…20.00	0.01		- 100
CD10.1L-An-M12	0.5…200.0	0.1		- 10
CD10.1H-Ap-M12	0.005…2.000	0.001	analog 0…+2 V (max. +2.5 V) 1 kΩ	+1000
CD10.1N-Ap-M12	0.05…20.00	0.01		+100
CD10.1L-Ap-M12	0.5…200.0	0.1		+10

(Subject to technical changes!)

3. CD10.1 (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
CD10.1H-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
CD10.1N-M0c	0.05…20.00	0.01
CD10.L-M0c	0.5…200.0	0.1

(Subject to technical changes!)

4. CD10.1 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
CD10.1MA0.5	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
CD10.1MA2	0.005…2.000	0.001		8.0
CD10.1MA5	0.05…5.00	0.01		3.2
CD10.1MA10	0.05…10.00	0.01		1.6
CD10.1MA20	0.05…20.00	0.01		0.8
CD10.1MA-200	0.5…200.0	0.1		0.08

(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
CD10.1MA0.5-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.
CD10.1MA2-M12	0.005…2.000	0.001		8.0
CD10.1MA5-M12	0.05…5.00	0.01		3.2
CD10.1MA10-M12	0.05…10.00	0.01		1.6
CD10.1MA20-M12	0.05…20.00	0.01		0.8
CD10.1MA-200- M12	0.5…200.0	0.1		0.08

(Subject to technical changes!)

Spare Parts

Type	Membrane cap	Electrolyte	Emery	O-ring
All CD10.1	M10.3N Art. no. 11057	ECD4 ● ECD7/W, 100 ml Art. no. 11030	S2 Art. no. 11906	20 x 1.5 silicone Art. no. 11803

(Subject to technical changes!)