Suzhou Delfino Environmental Technology Co., Ltd.: Create value for customers!

Home > Products > Disinfectant Analyzer >

Two-Wire 4-20mA Chlorite/Chlorate Sensor For Swimming Pool Drinking Water Process Water And Seawater

Browse Categories

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

Two-Wire 4-20mA Chlorite/Chlorate Sensor For Swimming Pool Drinking Water Process Water And Seawater

Brand Name	Daruifuno
Model Number	MST1
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	Chlorite/Chlorate Sensor
Product Model	BR1MA
Measuring range:	0.005~2.000; 0.05~2.00
Pressure Range	0 ~ 5 (Flow cell)
Temperature Range	0 ~ 40 ℃
Response Time	T90: approx. 1 min.
Flow Rate	15-30 l/h (33 – 66 cm/s)

Detailed Product Description

Two-Wire 4-20mA Chlorite/Chlorate Sensor For Swimming Pool Drinking Water Process Water And Seawater

The membrane-based chlorite/chlorate sensor with two-wire 4-20mA signal output has the following main advantages and features:

1. Stability and reliability
Membrane principle: The membrane separation technology can effectively avoid the influence of interfering ions (such as chloride ions, nitrates, etc.) and improve the selectivity and accuracy of the measurement.
Long-life electrode: The electrode design is durable and can maintain stable performance for a long time under complex water conditions.

2. Convenient signal transmission
Dual-wire 4-20mA output: No additional power supply line is required, suitable for long-distance signal transmission, strong anti-interference ability, good compatibility, and can be directly connected to control systems such as PLC and DCS.
Analog signal standardization: 4-20mA output is a standard interface in industrial automation control, which is convenient for seamless integration with existing systems.

3. Online real-time monitoring
Supports real-time monitoring of chlorite and chlorate concentration changes, can quickly respond to water quality changes, and is suitable for industrial process control and water treatment applications.

4. Low maintenance cost
Easy membrane replacement: The membrane assembly is easy to replace and the sensor life is extended.
Long calibration interval: stable measurement, reducing the need for frequent calibration and lowering operating costs.

5. Resistant to harsh environments
Anti-pollution design: The membrane structure can effectively prevent the adhesion of dirt and particles, and is suitable for various water quality conditions.
Wide range adaptability: It can work stably under different temperature, pH and pressure conditions.

6. Safety and environmental protection
Non-reagent method: No chemical reagents are required, reducing secondary pollution, and green and environmentally friendly.
Non-toxic materials: The main materials of the membrane and sensor are environmentally friendly and durable, and meet environmental protection and drinking water hygiene standards.

Three-electrode system, measuring chlorate and chlorite, used in swimming pools, drinking water, services, processes and seawater, reducing dependence on pH, tolerant to surfactants, no cross-sensitivity to chlorine dioxide, chlorine, and chlorate, and pressure resistance of 5 bar

Specifications

	MST1
Indicator	Chlorite
Application	Drinking water, swimming pool water, service water, process water.
Appropriate chlorine dioxide production methods	e. g. - Acid/chlorite-method - Chlorine/chlorite-method
Measuring system	Membrane covered, amperometric potentiostatic 3-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)
Working temperature	Measuring water temperature: 0 … +40 °C (no ice crystals in the measuring water)
Working temperature	Ambient temperature: 0 … +55 °C
Temperature compensation	Automatically, by an integrated temperature sensor Max. change in temperature: 0.3 °C per minute, 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 flow cell: - 5 bar, - no pressure impulses and/or vibrations (see option 1)
Flow rate (Incoming flow velocity)	Approx. 15-30 L/h (33 – 66 cm/s) in flow cell
pH-range	pH 6 – pH 9
Run-in time	First start-up approx. 24 h
Response time	T90: approx. 1 min
Zero point adjustment	Normally not necessary
Calibration	At the device, by analytical determination of the chlorite concentration

MST1

Cross sensitivities/ interferences

Mn2+, Nitrite, Fe2+

No interference to Chlorine dioxide, Chlorine und Chlorate

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

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, PEEK, stainless steel

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 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: 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)

Spare Parts

Type

Membrane cap

Electrolyte

Emery

O-ring

For all MST1

M48.2

Art. no. 11047

EMST1/GEL, 100 ml

Art. no. 11202

Art. no. 11906

14 x 1.8 NBR

Art. no. 11806

(Subject to technical changes!)

Technical Data

1. MST1 (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 (at pH 7.2) in mV/ppm	Voltage supply	Connection
MST1H-M12	0.005…2.000 *	0.001	0…-2000mV 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.
MST1N-M12	0.05…2.00 *	0.01	0…-2000mV 1 kΩ	-100	±5 - ±15 VDC 10 mA
MST1HUp-M12	0.005…2.000 *	0.001	0…+2000mV 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.
MST1Up-M12	0.05…2.00 *	0.01	0…+2000mV 1 kΩ	+100	10 - 30 VDC 10 mA

* concentration tested and approved up to 2 ppm

(Subject to technical changes!)

2. MST1 (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
MST1H-An-M12	0.005…2.000 *	0.001	analog 0…-2 V (max. -2.5V) 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.


MST1N-An-M12	0.05…2.00 *	0.01		-100

MST1H-Ap-M12	0.005…2.000 *	0.001	analog 0…+2 V (max. +2.5V) 1 kΩ	+1000

MST1N-Ap-M12	0.05…2.00 *	0.01		+100

* concentration tested and approved up to 2 ppm

(Subject to technical changes!)

3. MST1 (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

MST1H-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

MST1N-M0c

0.05…2.00 *

0.01

* concentration tested and approved up to 2 ppm

(Subject to technical changes!)

4. MST1 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

Resolution

in ppm

Output

Output resistance

Nominal slope

(at pH 7.2)

in mA/ppm

Voltage supply

Connection

MST1MA2

0.005…2.000 *

0.001

4…20 mA
uncalibrated

8.0

12…30 VDC

RL 50Ω…RL 900Ω

2-pole terminal (2 x 1 mm²)

Recommended: Round cable

φ4 mm

2 x 0.34 mm²

MST1MA20

0.05…2.00 *

0.01

0.8

* concentration tested and approved up to 2 ppm

(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

(at pH 7.2)

in mA/ppm

Voltage supply

Connection

MST1MA2-M12

0.005…2.000 *

0.001

4…20 mA uncalibrated

8.0

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.

MST1MA20-M12

0.05…2.00 *

0.01

0.8

* concentration tested and approved up to 2 ppm

(Subject to technical changes!)

Product Tags: Seawater Chlorite/Chlorate Sensor Swimming Pool Chlorite/Chlorate Sensor Drinking Water Chlorite/Chlorate Sensor

Related Products

Membrane Coated Peracetic Acid Sensor With High Chemical Resistance For All Water Treatment for sale


From:	Enter your Email please. Your email is incorrect!
To:	Suzhou Delfino Environmental Technology Co., Ltd.
Subject:	Subject is empty!
Message:	Characters Remaining: (80/3000) Please enter 20 to 3000 characters to contact this supplier!

Two-Wire 4-20mA Chlorite/Chlorate Sensor For Swimming Pool Drinking Water Process Water And Seawater

Two-Wire 4-20mA Chlorite/Chlorate Sensor For Swimming Pool Drinking Water Process Water And Seawater

Membrane Coated Peracetic Acid Sensor With High Chemical Resistance For All Water Treatment

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

Chemicals High Tolerance Two-Electrode System Hydrogen Peroxide Sensor For All Water Treatment

Two-Wire 4-20mA Chlorite/Chlorate Sensor For Swimming Pool Drinking Water Process Water And Seawater

Two-Wire 4-20mA Bromine Sensor For Swimming Pools Drinking Water And Sea Water

The Two-Electrode System Amperometric Ozone Sensor Is Used For All Water Treatment