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Contamination Resistant Low Conductivity Three Electrode Total Chlorine Sensor For Drinking Water Or Swimming Pool

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Suzhou Delfino Environmental Technology Co., Ltd.

City: suzhou

Province/State:jiangsu

Country/Region:china

Tel:86-15716217387

Contact Person:
Ms.Yuki Fu View Contact Details

Contamination Resistant Low Conductivity Three Electrode Total Chlorine Sensor For Drinking Water Or Swimming Pool

Brand Name	Daruifuno
Model Number	DCP4.0MA
Certification	CE, ISO
Place of Origin	China
Minimum Order Quantity	Negotiable
Price	Negotiable
Payment Terms	T/T
Delivery Time	1-45 work days
Packaging Details	carton
Product Name	Total chlorine sensor
Product Model	DCP4.0MA
Measurand(s)	Total chlorine Total chlorine (= free chlorine + bound chlorine)
Conductivity	10 µS/cm – 200 mS/cm (brine)
PH Range	pH 4 – pH 12, reduced dependence on pH-value
Pressure Range	0 ~ 3bar(Flow cell)
Temperature Range	0 ~ 45 ℃
Response Time	T90: approx. 3 min. (brine approx. 5 min.)
Flow Rate	15-30 l/h (33 – 66 cm/s)

Detailed Product Description

Contamination Resistant Low Conductivity Three Electrode Total Chlorine Sensor For Drinking Water Or Swimming Pool

The three-electrode membrane total chlorine sensor is a type of sensor commonly used for water quality monitoring. It adopts a three-electrode design and the membrane method measurement principle. It consists of a working electrode, a reference electrode and a comparison electrode.

The working electrode is responsible for detecting chloride ions in water samples, the reference electrode provides a stable potential as a reference, and the contrast electrode is used to calibrate and compensate for the effects of changes in temperature, pressure, etc. in the environment on the measurement results.

The working principle of the sensor is based on the reaction of chloride ions in water. The working electrode is covered with a selective chloride ion sensing membrane. When chloride ions come into contact with this membrane, it will cause a charge change. The concentration of chloride ions is determined by measuring the current between the electrodes, thereby indirectly determining the concentration of chloride ions in the water sample. Total chlorine content.

The three-electrode membrane total chlorine sensor sensor has the advantages of fast response, high sensitivity, and good reliability, ensuring that water quality meets safety standards.

DCP4.0MA Total chlorine sensor Three-electrode system, used for drinking water, swimming pool water, service water, process water, sea water and salt water, direct drinking water (conductivity not less than 10μs/cm), medical sewage, pH 4~12, greatly reducing dependence on pH value. Resistant to pollution, low conductivity, almost no maintenance required, optional range 0~2/5/10/20/50ppm

Areas of application: Swimming pool water, drinking water, sea water, brine (15% NaCl) Surfactants (tensides) are partially tolerated.

Scope of supply: CP4 sensor, membrane cap, electrolyte

Specifications

Item Number

CP4.0

indicator

Total chlorine (= free chlorine + bound chlorine)

Reduced dependence on pH

Application

Swimming pool water, drinking water, sea water, brine (15% NaCl)

Surfactants (tensides) are partially tolerated.

Chlorination agents

inorganic chlorine compounds:

NaOCl (=sodium hypochlorite), Ca(OCl)2 , chlorine gas, electrolytically generated chlorine

Measuring system

Membrane covered, amperometric potentiostatic 3-electrode system with electronic inside

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)

digital (digital-out/digital)

mA-version: - current output analog

- not galvanically isolated electronics

- output signal: analog (analog-out/analog)

Information about themeasuring 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 (25°C, pH 7.2 in drinking water) of the upper full scale

- Measuring range 2 mg/l: at 0.4 mg/l <2%

at 1.6 mg/l <2%

- Measuring range 20 mg/l:

at 4 mg/l <1%

at 16 mg/l <3%

Slope drift

At repeatability conditions (25 °C, pH 7,2 in drinking water)

approx. -1% per month

Working temperature

Measuring water temperature: 0 … +45 °C

(no ice crystals in the measuring water)

Ambient temperature: 0 … +55 °C

Temperature compensation

Automatically, by an integrated temperature sensor

Sudden temperature changes must be avoided

Max. allowed working

pressure

Operation without retaining ring:

- 0.5 bar

- no pressure impulses and/or vibrations

Operation with retaining ring in TARAflow FLC:

- 3 bar,

- no pressure impulses and/or vibrations (see option 2)

Flow rate (Incoming flow velocity)	approx. 15-30 l/h (33 – 66 cm/s) in FLC, small flow rate dependence is given
pH-range	pH 4 – pH 12, reduced dependence on pH-value (see diagram last page of the data sheet “Slope of CP4 versus pH”)
Conductivity	10 µS/cm – 200 mS/cm (brine)
Run-in time	First start-up approx. 2 h
Response time	T90 : approx. 3 min. (brine approx. 5 min.)
Zero point adjustment	Not necessary
calibration	At the device, by analytical determination, DPD-4-Method (DPD- 1 + DPD-3)
Cross sensitivities/ interferences	ClO2 : factor 1 O3: factor 1.3 Corrosion inhibitors can lead to measuring errors. Stabilisers for water hardness can lead to measuring errors.
Absence of the disinfectant	Max .24 h
Connection	mV version: 5-pole M12, plug-on flange Modbus version: 5-pole M12, plug-on flange 4-20 mA version: 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	Microporous hydrophilic Membrane, PVC-U, PEEK, stainless steel 1.4571
Size	diameter: approx. 25 mm Length: mV version approx. 190 mm (analog signal processing) approx.. 205 mm (digital signal processing) Modbus version approx. 205 mm 4-20 mA version approx. 220 mm (2-pole-terminal) approx. 190 mm (5-pole-M12)

Transport

+5 … +50 °C (Sensor, electrolyte, membrane cap)

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 the 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

Change of the electrolyte: once a year

EMC tested

RoHS compliant

Option 1:

Membrane cap M48.4S

especially for applications in sea water or brine

Option 2:

Retaining ring

- When operating with pressures >0.5 bar in TARAflow FLC

- Dimensions retaining ring 29 x 23.4 x 2.5 mm, slitted, PETP

- Different positions for groove selectable

(on request)

Spare parts

Type

Membrane cap

Electrolyte

Emery

O-ring

All CP4.0

M48.4E

Art. No. 11051-E

ECP1.4/GEL, 100 ml Art. No. 11006.1

Art. No. 11908

14 x 1.8 NBR Art. No. 11806

For sea water or brine

applications:

M48.4S

Art. No. 11051-S

CP4.0 (digital output, digital internal 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
CP4.0H-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
CP4.0N-M0c	0.05… 20.00	0.01
CP4.0H-M4c *	0,005… 2,000	0.001

(Subject to technical changes!)

CP4.0 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.

Electrical connection: 2 pole terminal clamp

	Measuring range in ppm	Resolution in ppm	Output Output resistance	Nominal slope (at pH 7.2) in mA/ppm	Power supply	Connection
CP4.0MA0.5	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
CP4.0MA2	0.005…2.000	0.001		8.0
CP4.0MA5	0.05…5.00	0.01		3.2
CP4.0MA10	0.05…10.00	0.01		1.6
CP4.0MA20	0.05…20.00	0.01		0.8

(Subject to technical changes!)

Electrical connection: 5 pole M12 plug-on flange

	Measuring range in ppm	Resolution in ppm	Output Output resistance	Nominal slope (at pH 7.2) in mA/ppm	Power supply	Connection
CP4.0MA0.5-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.
CP4.0MA2-M12	0.005…2.000	0.001		8.0
CP4.0MA5-M12	0.05…5.00	0.01		3.2
CP4.0MA10-M12	0.05…10.00	0.01		1.6
CP4.0MA20-M12	0.05…20.00	0.01		0.8

(Subject to technical changes!)

Product Tags: Swimming Pool Total Chlorine Sensor Contamination Resistant Total Chlorine Sensor Low Conductivity Total Chlorine Sensor

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