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pH Sensor Cap for Underwater Devices

PHCAP-PK8T-SUB

  • Total Scale pH measurement
  • Robust sensor cap with integrated optical pH sensor
  • For all devices with -SUB connector
  • Minimize maintenance by simply exchanging the cap
  • Minimal cross-sensitivity to high ionic strength

The PHCAP represents a new generation of optical pH sensors from PyroScience and a viable alternative to traditional electrochemical sensors.

The PHCAP is attached via the PyroScience SUB-connector directly to a compatible read-out device. An additional protective cap makes the PHCAP highly robust against mechanical impact and ideal for long-term monitoring applications. 

The PHCAP integrates a pH sensor spot and allows measurements between pH 7.0 and 9.0 on pH total scale. It is based on an optical detection principle and therefore does not require a reference electrode, leading to a minimized effect of high ionic strength thus making it to a suitable sensor solution for long-term measurements especially in seawater. 

pH range 7.0-9.0 This sensor is specified for pHT (pH total scale) in the marine pH range of 7-9. For detailed specifications, see the respective pdf file in the Downloads tab.

Optical isolation. This sensor type is equipped with an additional optical isolation protection layer. This layer avoids interferences with the measurements in applications at high ambient light (e.g. direct sunlight, illuminated samples) and in fluorescing / light-sensitive samples.

Easy calibration. Calibration of the pH sensors is performed at pH 2 and pH 11 using our easy-to-use calibration capsules (PHCAL2 and PHCAL11). For detailed calibration recommendations, please refer to the manual in the downloads tab.

Applications. To get an overview of potential applications and to see our sensors in action, please visit our Applications site!

Specifications

Calibration Capsules (pH 2)

PHCAL2

For obligatory acid calibration of optical pH sensors. Each capsule results in 100mL calibration solution (PU=10).

Calibration Buffer Capsules (pH 11)

PHCAL11

For recommended basic calibration of optical pH sensors. Each capsule results in 100mL calibration buffer solution (PU=10).

Every PyroScience pH meter with a SUB-connector is compatible to this sensor. Use this link to get a list of all compatible meters. Select additional requirements to find the optimal meter for you and your application!

 

Exemplary Setup

AquapHOX-LX + PHCAP-PK8T-SUB

This combination enables: 

  • pH measurements in deep sea on pH total scale
  • Autonomous logging with AquapHOX-LX
  • Operation up to 4000m depth