TRANS-PH-KIT Series

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Transmissive pH Dip Probe Kits

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Item Description Included items
TRANS-PH-KIT-SS Transmissive pH dip probe kit, stainless steel Stainless steel probe, tip & 5 patches
TRANS-PH-KIT-PEEK Transmissive pH dip probe kit, PEEK PEEK probe, tip & 5 patches

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This versatile kit turns your visible wavelength spectrometer and light source into a transmissive pH probe. It uses a randomized fiber bundle probe in a stainless steel or PEEK ferrule, selected by the user based on environment. For example, long term monitoring in seawater would use the PEEK probe due to the corrosion sensitivity of stainless steel.

This kit can be used with your spectrometer system as a replacement for any traditional electrode pH sensor, and comes with 5 transmissive pH patches to get you started.

  • Recommended for use with spectrometers configured with a 25 – 50 μm slit.
  • Both light source and spectrometer must measure 620 nm and either 510 nm or >750 nm
  • Samples must be clear, not colored or turbid.
  • Sample volume is 3+ mL.
Items included in TRANS-PH-KIT-SS kit

Item Description
PH-BCG-TRANS 5-pack of transmissive pH sensing patches
RE-BIFBORO-2 Randomized bifurcated probe assembly
T300-SLEEVE Stainless steel transmission dip probe sleeve
RT-5MM Stainless steel transmission dip probe tip

Items included in TRANS-PH-KIT-PEEK kit

Item Description
PH-BCG-TRANS 5-pack of transmissive pH sensing patches
RE-BIFBORO-2 Randomized bifurcated probe assembly
TP300-SLEEVE PEEK transmission dip probe sleeve
RTP-2-10 PEEK transmission dip probe tip

pH Sensing Patch Specifications

Engineering Specifications PH-BCG-TRANS
pH Range: 5 – 9
Analytical wavelength: 620 nm
Baseline correction wavelengths: 509 nm (isosbestic), or > 750 nm
Accuracy: 0.05 pH unit (<1% of reading across range)
Resolution: 0.02 pH unit
Response time: 10 seconds
Calibration requirements (minimum): Calibration reset: 3 buffers
Full calibration: 6 buffers
Sterilization: Gamma radiation, EtO (ethylene oxide)
Chemical compatibility*: Aqueous, alcohols, some organic solvents, peroxides, ammonia, sodium hypochlorite
Discrete stability(lifetime): 50 uses or more. Dispose when absorbance at pH 11 < 0.1 (assumes pH 1 reference)
Storage conditions: Dry storage preferred

Stainless Steel pH Probe

Engineering Specifications TRANS-PH-KIT-SS
Probe diameter: 6.35 mm (1/4″)
Probe length: 127 mm
Fiber length: 2 meters
Breakout: 1.5 meters from the end of the probe
Temperature limit: Up to 100º C without sleeve
Pathlength: 5 mm
Probe material: Stainless steel outer sleeve, aluminum second surface mirror
Pressure: 100 psi
Fiber jacketing: Black PVC monocoil
Connectors: SMA 905

PEEK pH Probe

Engineering Specifications TRANS-PH-KIT-PEEK
Probe diameter: 6.35 mm (1/4″)
Probe length: 107.9 mm
Fiber length: 2 meters
Breakout: 1.5 meters from the end of the probe
Temperature limit: Up to 200º C with PEEK sleeve
Pathlength: Adjustable (2 – 10 mm)
Probe material: PEEK
Fiber jacketing: Black PVC monocoil
Connectors: SMA 905

Measurement Techniques in which this product is used: