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pH Sensor for Pure and Ultrapure Water

Technical Features: 
● Adopts the most advanced annular large-cross-section Teflon diaphragm in the world, ensuring a stable liquid junction for the Sensor
● Strong anti-interference capability, resistant to fouling and clogging, and longer service life
● The reference system is filled with a polymeric polymer, making it easy to use and eliminating the need to replenish the electrolyte
● Rapid response (reaches 95% of the measured value within a few seconds) 
● Measurement range: 0–14 pH; temperature: 0–110°C 
● Pressure resistance: 0.6 MPa; Zero potential: E 0 =7 pH 
● The sensor is suitable for various ultrapure water
● Temperature compensation resistors: 10 kΩ, PT100, PT1000, 2.252 kΩ, etc.

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ASP3251 Series

ASP3251 Series

As shown in the figure:

● PG13.5 threaded mounting, internationally recognized standard

● VP connector, making installation and replacement of the Sensor very convenient

● The Sensor is suitable for pure water with a conductivity ≥1 μS/cm.

● Measurement range: 0–14 pH; Zero potential: E 0 =7 pH; Temperature range: 0–110°C

● Pressure resistance: 0.6 MPa

● Dimensions: ∅12×120mm, 225mm, or other sizes

● Outer tube material: glass

● Temperature compensation resistors: PT100, PT1000, 2.252 kΩ, 10 kΩ, etc.

 

Model Selection:

ASP3251 Combination Sensor with thermistor

ASP3251D Digital Sensor with RS485 Output, No Calibration Required, Plug and Play

ASP3211 Series

ASP3211 Series

As shown in the figure:

● PG13.5 threaded mounting, internationally recognized standard

● The Sensor comes with a fixed lead, the length of which can be adjusted according to user requirements

● The Sensor is suitable for pure water with a conductivity ≥1 μS/cm

● Measurement range: 0–14 pH; Zero potential: E 0 =7 pH; Temperature range: 0–110°C

● Pressure resistance: 0.6 MPa

● Dimensions: ∅12×120mm, 225mm, or other sizes

● Outer tube material: glass

● Temperature compensation resistors: 10 kΩ, PT100, PT1000, 2.252 kΩ, etc

 

Model Selection:

ASP2211 Combination Sensor

ASP3211 Combination Sensor with Thermistor

ASP3211D Digital Sensor with RS485 Output, No Calibration Required, Plug and Play

ASP2221

ASP2221

As shown in the figure:

● S8 connector, PG13.5 threaded mounting

● The Sensor is suitable for pure water with a conductivity ≥1 μS/cm

● Measurement range: 0–14 pH; Zero potential: E 0 =7 pH; Temperature range: 0–110°C

● Pressure resistance: 0.6 MPa

● Dimensions: ∅12×120mm, 225mm, or other sizes

● Outer tube material: glass

ASP2281

ASP2281

As shown in the figure:

● S7 connector for easy installation and replacement

● The Sensor is suitable for pure water with a conductivity of ≥1 μS/cm

● Measurement range: 0–14 pH; Zero potential: E 0 =7 pH; Temperature range: 0–110°C

● Pressure resistance: 0.6 MPa

● Dimensions: ∅12×120mm, 225mm, or other sizes

● Outer tube material: glass

 

 

ASP2201 Series

ASP2201 Series

As shown in the figure:

● The sensor is with fixed cable, the length can be adjusted according to user requirements

● The sensor is suitable for pure water with a conductivity ≥1 μS/cm

● Measurement range: 0–14 pH; Zero potential: E 0 =7 pH; Temperature range: 0–110°C

● Pressure resistance: 0.6 MPa

● Dimensions: ∅12×120mm, 225mm, or other sizes

● Outer tube material: glass

● Temperature compensation resistors: PT100, PT1000, 2.252 kΩ, 10 kΩ, etc.

 

Model Selection:

ASP2201 Combination Sensor

ASP3201 Combination Sensor with Thermistor

ASP3255 Series

ASP3255 Series

As shown in the figure:

● The sensor is suitable for pure water with conductivity ≤1 μS/cm.

● Uses imported ceramic diaphragms with ceramic micropores smaller than 1 μm

● VP connector, convenient for installing and replacing the Sensor

● Measurement range: 0–14 pH; Zero potential: E 0 =7 pH; Temperature range: 0–110°C

● Pressure resistance: 0.6 MPa

● Dimensions: ∅12×120mm, 225mm, or other sizes

● Outer tube material: glass

● Temperature compensation resistors: PT100, PT1000, 2.252 kΩ, 10 kΩ, etc.

 

Model Selection:

S7 Connector: ASP2285 Combination Sensor

S8 Connector: ASP2225 Combination Sensor

VP connector: ASP3255  Combination Sensor with Thermistorr

VP connector: ASP3255D Digital Sensor with RS485 output, no calibration required, plug and play

Fixed wire:

ASP2215 Combination Sensor

ASP3215 Combination Sensor with Thermistor

ASP3215D Digital Sensor with RS485 Output, No Calibration Required, Plug and Play

ASPS3221 Series

ASPS3221 Series

As shown in the figure:

● 3/4 NPT threaded connection for top and bottom mounting, ensuring secure and reliable sealing

● Both flow-through and submersible designs are easy to install

● The sensor is with VP connector or fixed cable, and the wire length can be adjusted according to user requirements

● The sensor is suitable for pure water with a conductivity ≥1 μS/cm.

● Measurement range: 0–14 pH; Zero potential: E 0 =7 pH; Temperature range: 0–100°C

● Pressure resistance: 0.6 MPa

● Dimensions: ∅28×165mm or other dimensions

● Outer tube material: PPS plastic

● Temperature compensation resistors: PT100, PT1000, 2.252 kΩ, 10 kΩ, etc.

 

Model Selection:

ASPS2221 Combination Sensor with Fixed Cable

ASPS3221 Combination Sensor with Thermistor and Fixed Cable

ASPS3221D Digital Sensor with Fixed Cable and RS485 Output, No Calibration Required, Plug and Play

ASPS3251 Combination Sensor with Thermistor and VP Connector

ASPS3251D Digital Sensor with VP Connector and RS485 Output, No Calibration Required, Plug and Play

ASPS1111 Series

ASPS1111 Series

As shown in the figure:

● The Sensor can be directly matched with various domestic or imported pH meters.

● Rotating snap-fit installation

● Both flow-through and submersible designs are easy to install.

● The Sensor comes with a VP connector or a fixed wire, and the wire length can be adjusted according to user requirements.

● Measurement range: 0–14 pH; Zero potential: E 0 =7 pH; Temperature range: 0–100°C

● Pressure resistance: 0.6 MPa

● Dimensions: ∅26×160mm or other dimensions

● Outer tube material: plastic

● Temperature compensation resistors: 10 kΩ, PT100, PT1000, 2.252 kΩ, etc.

 

Model Selection:

ASPS1111 Three-Component Sensor with Fixed Lead

ASPS1151 Triple Composite Sensor with VP Plug

ASPS1111D intelligent Sensor with fixed wire and RS485 output, no calibration required, plug and play

ASPS1151D Intelligent Sensor with VP Plug and RS485 Output, No Calibration Required, Plug and Play