Two-Electrode System Peracetic Acid Sensor For All Water Treatments High Tolerance To Chemicals

Brand Name:Daruifuno
Certification:CE, ISO
Model Number:P9.3
Minimum Order Quantity:Negotiable
Delivery Time:1-45 work days
Payment Terms:T/T
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Location: Suzhou Jiangsu China
Address: Room 301, Building 3, No. 25 Datong Road, High-tech Zone, Suzhou City, JIANGSU P.R CHINA
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Product Details

Two-Electrode System Peracetic Acid Sensor For All Water Treatments High Tolerance To Chemicals


The dual-electrode system membrane peracetic acid sensor P9.3 is used in all water treatments. It has a mechanically sturdy membrane system, is resistant to surfactants, and has high tolerance to chemicals. The maximum water temperature is 60°C, and the optional range is 0~200/2000/20000 ppm.


It is a high-performance monitoring device for water treatment. Its design and process characteristics enable it to perform well in a variety of application scenarios. The following are its detailed process characteristics and advantages:


Process characteristics


Dual-electrode system design
Working electrode and reference electrode:
Provide stable and accurate signals through the dual-electrode system to ensure high-precision peracetic acid detection.
Signal stability: The electrode configuration effectively reduces noise and background interference.


Membrane separation technology
Selective permeable membrane: The sensor surface is covered with a selective membrane that allows peracetic acid molecules to pass through while shielding interfering substances
Enhanced durability: Protect the electrode, reduce chemical loss, and extend the service life of the equipment.


Chemical corrosion resistance
The material is selected with high chemical corrosion resistance, which can withstand complex chemical environments and is suitable for a variety of water treatment scenarios, such as industrial wastewater and highly polluted water monitoring.


Real-time online monitoring
The sensor can be directly connected to the automated monitoring system to achieve continuous monitoring and dynamic adjustment of the water treatment process.


Automatic temperature compensation
The built-in temperature compensation function provides consistent test results under different water temperature conditions.


Advantages
High precision and sensitivity
The detection accuracy of low-concentration peracetic acid is high, which is suitable for scenarios with strict water quality requirements.


Strong anti-interference ability
The selective membrane effectively reduces the interference of other chemicals and ensures the accuracy of the measurement data.


Low maintenance requirements
The sensor diaphragm is durable and easy to replace, the equipment design is simple, and the maintenance cost is low.
The automatic calibration function reduces the frequency of manual operation.


Fast response
The response time is short, and it can quickly capture water quality changes and provide timely feedback for water treatment process adjustments.


Environmental protection and safety
No reagents are required, which reduces the generation of chemical waste and is environmentally friendly.


Long-term stability
High-tolerance materials and membrane design ensure the reliability and stability of the equipment during long-term operation.



Specifications




P9.3

IndicatorPeracetic acid

Application

All kinds of water treatment

Tensides and conductivity acids are tolerated

(e. g. bottle washing machine, CIP-plants)

Measuring systemMembrane 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 repeat conditions (25 °C, in drinking water) from full scale value

Measuring range 2000 mg/L: at 400 mg/l <2%

at 1600 mg/l <3%


Working temperature

Measuring water temperature: 0 … +60 °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

T90: approx. 3.5 min.


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)

Flow rate

(Incoming flow velocity)

approx. 15-30L/h (33 – 66 cm/s) in flow cell, small flow rate dependence is given
pH-rangepH 1 – pH 8 (see Diagram „Slope of P9.3 and P10.1 versus pH“, p. 8)




P9.3


Run-in time

Measuring range 200 mg/L: First start-up approx. 3 h

Measuring range 2000 mg/L: First start-up approx. 1 h

Measuring range 20000 mg/L: First start-up approx. 30 min.

Response time

T90: approx. 3.5 min. at 10 °C a

pprox. 45 sec. at 50 °C

Zero point adjustmentNot necessary
CalibrationAt the device, by analytical determination

Interferences

O3: high increase of the measuring value

ClO2: increases the measuring value

H2O2: very low influence on the measuring value (reduce of the PAA-signal)

Influence of conductivity acids

1 % sulfuric acid, 1 % nitric acid or 1 % phosphoric acid in the water have no

influence to the measuring behaviour

Absence of the disinfectantMax. 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

MaterialElastomer membrane, 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)




P9.3

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 cannot 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: 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. P9.3 (Analog output, analog internal signal processing)

A potential-free electrical connection is necessary as the sensor electronic is not equipped with a galvanic.

Measuring rangeResolutionOutput Output resistanceNominal slopeVoltage supplyConnection

P9.3H-M12

0…200 ppm

0.1 ppm

0…-2000 mV


1 kΩ


-10 mV/ppm

±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.

P9.3N-M12

5…2000 ppm

1 ppm


-1 mV/ppm

P9.3L-M12

0.005…2 % (20000 ppm)

0.001 %

(10 ppm)

-1000mV/%

(-0.1 mV/ppm)

P9.3Up2000-M125…2000 ppm1 ppm

0…+2000 mV


1 kΩ

+1 mV/ppm

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.

P9.3Up5000-M12

50…5000 ppm

1 ppm

+0.4 mV/ppm

(Subject to technical changes.)


2. P9.3 (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 rangeResolution

Output

Output resistance

Nominal slopeVoltage supplyConnection
P9.3H-An-M120 … 200 ppm0.1 ppm

analog

0…-2 V

(max. -2.5 V)

1 kΩ

-10 mV/ppm

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.

P9.3N-An-M125 … 2000 ppm1 ppm-1 mV/ppm
P9.3L-An-M12

0.005 … 2 %

(20000 pm)

0.001 %

(10 ppm)

-1000mV/%

(-0.1 mV/ppm)

P9.3H-Ap-M120 … 200 ppm0.1 ppm

analog

0…+2 V

(max. +2.5 V)

1 kΩ

+10 mV/ppm
P9.3N-Ap-M125 … 2000 ppm1 ppm+1 mV/ppm
P9.3L-Ap-M12

0.005 … 2 %

(20000 pm)

0.001 %

(10 ppm)

+1000mV/%

(+0.1 mV/ppm)

(Subject to technical changes.)

3. P9.3 (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 rangeResolution

Output

Output resistance

Voltage supplyConnection

P9.3H-M0c


0 … 200 ppm


0.1 ppm

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


P9.3N-M0c


5 … 2000 ppm


1 ppm


P9.3L-M0c

0.005 … 2 %

(20000 pm)

0.001 %

(10 ppm)

(Subject to technical changes.)


4. P9.3 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 galvanic.

4.1 Electrical connection: 2 pole terminal clamp


Measuring rangeResolutionOutput Output resistanceNominal slopeVoltage supplyConnection
P9.3MA-2000 … 200 ppm0.1 ppm

4…20 mA uncalibrated

0.08 mA/ppm

12…30 VDC

RL = 50Ω (12V)… 900Ω (30V)

2-pole terminal (2 x 1 mm²)

Recommended: Round cableØ 4 mm

2 x 0.34 mm²

P9.3MA-20005 … 2000 ppm1 ppm0.008 mA/ppm
P9.3MA-2%

0.005 … 2 %

(20000 ppm)

0.001 %

(10 ppm)

8.0 mA/%

(0.0008 mA/ppm)

(Subject to technical changes.)


4.2 Electrical connection: 5 pole M12 plug-on flange


Measuring rangeResolutionOutput Output resistanceNominal slopeVoltage supplyConnection

P9.3MA-200-M12


0 … 200 ppm


0.1 ppm


4…20 mA
uncalibrated

0.08 mA/ppm


12…30 VDC
RL = 50Ω
(12V)… 900Ω (30V)

5-pole M12 plug- on flange


Function of wires:

PIN1: n. c.
PIN2: +U
PIN3: -U

PIN4: n c.

PIN5: n. c.

P9.3MA-2000-M125 … 2000 ppm1 ppm0.008 mA/ppm

P9.3MA-2%-M12

0.005 … 2 %

(20000 ppm)


0.001 %

(10 ppm)

8.0 mA/%

(0.0008 mA/ppm)

(Subject to technical changes.)

Spare Parts

TypeMembrane capElectrolyteEmeryO-ring

P9.3

not P9.3L

and P9.3MA-2%

M9.3N


Art. no. 11058

EPS9H/W, 100 ml

Art. no. 11025

S2

Art. no. 11906

20 x 1.5 silicone

Art. no.. 11803

P9.3L

P9.3MA-2%

EPS9L/W, 100 ml
Art. no. 11024

(Subject to technical changes.)


Solope of P9.3 and P10.1 versus pH

China Two-Electrode System Peracetic Acid Sensor For All Water Treatments High Tolerance To Chemicals supplier

Two-Electrode System Peracetic Acid Sensor For All Water Treatments High Tolerance To Chemicals

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