Specifications
Brand Name :
Daruifuno
Model Number :
DCP4.0MA
Certification :
CE, ISO
Place of Origin :
China
MOQ :
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)
Description

Contamination Resistant Low Conductivity Three Probe For Sea Water Brine And Medical Wastewater

The DCP4.0MA three-electrode total chlorine sensor uses a membrane-attached method, and its detection principle is based on the selective adsorption of the membrane and the electrochemical response caused by concentration differences. The following are its main principles:

Selective film covering: The working electrode of the sensor is covered with a selective film. This membrane has high selectivity for chloride ions and is usually prepared from specific materials or compounds.

Chloride ion adsorption: When chloride ions in the water sample come into contact with the selective membrane, the chloride ions will be adsorbed to the membrane surface due to the characteristics of the membrane.

Charge change: The adsorption of chloride ions causes a charge change on the membrane surface. This change in charge can be received by the electrodes, producing a corresponding current or potential signal.

Electrochemical measurement: A system of electrodes in a sensor measures changes in electrical current or potential caused by changes in charge. This change is directly proportional to the concentration of chloride ions in the water sample.

Data processing: The sensor processes the measured current or potential signal through the internal circuit and converts it into a digital signal of total chlorine concentration or other related units.

The membrane-attached total chlorine electrode utilizes the adsorption characteristics of the selective membrane to chloride ions in the water sample, and indirectly measures the total chlorine content in the water sample by measuring the current or potential changes caused by the change in charge on the membrane surface. This method has fast response, high sensitivity and good selectivity, and is suitable for various application scenarios of water quality monitoring and control.

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

Contamination Resistant Low Conductivity Three Probe For Sea Water Brine And Medical Wastewater

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)

or

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

Contamination Resistant Low Conductivity Three Probe For Sea Water Brine And Medical Wastewater

EMC tested

RoHS compliant

Option 1:

Membrane cap M48.4S

especially for applications in sea water or brine

Contamination Resistant Low Conductivity Three Probe For Sea Water Brine And Medical Wastewater

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)

Contamination Resistant Low Conductivity Three Probe For Sea Water Brine And Medical Wastewater

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

S1

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.

Contamination Resistant Low Conductivity Three Probe For Sea Water Brine And Medical Wastewater

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

Contamination Resistant Low Conductivity Three Probe For Sea Water Brine And Medical Wastewater

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

Contamination Resistant Low Conductivity Three Probe For Sea Water Brine And Medical Wastewater

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!)

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Contamination Resistant Low Conductivity Three Probe For Sea Water Brine And Medical Wastewater

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Brand Name :
Daruifuno
Model Number :
DCP4.0MA
Certification :
CE, ISO
Place of Origin :
China
MOQ :
Negotiable
Price :
Negotiable
Contact Supplier
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Contamination Resistant Low Conductivity Three Probe For Sea Water Brine And Medical Wastewater
Contamination Resistant Low Conductivity Three Probe For Sea Water Brine And Medical Wastewater
Contamination Resistant Low Conductivity Three Probe For Sea Water Brine And Medical Wastewater
Contamination Resistant Low Conductivity Three Probe For Sea Water Brine And Medical Wastewater

Suzhou Delfino Environmental Technology Co., Ltd.

Verified Supplier
5 Years
jiangsu, suzhou
Since 2015
Business Type :
Manufacturer, Exporter, Seller
Certification Level :
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