Optical pH Sensors

PyroScience optical pH sensors utilize patented REDFLASH technology that guarantees fast and accurate pH measurements with no sample consumption. 


These pH sensors guarantee minimal cross-sensitivity to ionic strength and outstanding photostability that enable high sampling rates over long periods. The sensors work over a confined pH range (2 pH units) at high resolution and come in four different ranges: pH 4.0 - 6.0, 5.0 - 7.0, 6.0 - 8.0 and pH 7.0 - 9.0.

PyroScience recommends a 2-point calibration using PHCAL calibration capsules before every measurement. Please review the Optical pH Sensors User Manual for calibration tips.

 

Pick and choose from a variety of fiber-optic and contactless pH sensor options. Make sure to add the necessary accessories for complete system set-ups with the contactless sensors.

Fiber-Optic pH Probes

Contactless pH Probes

  • PHROBSC-PK5: pH 4.0 - 6.0 measurement range, 10cm long, 2m cable

  • PHROBSC-PK6: pH 5.0 - 7.0 measurement range, 10cm long, 2m cable

  • PHROBSC-PK7: pH 6.0 - 8.0 measurement range, 10cm long, 2m cable

  • PHROBSC-PK8: pH 7.0 - 9.0 measurement range, 10cm long, 2m cable

  • PHROBSC-PK8T: pH 7.0 - 9.0 measurement range (total scale), 10cm long, 2m cable

  • PHROBSC-PK8T-SUB: pH 6.0 - 8.0 measurement range, 10cm long, 2m cable, with -SUB connector

  • PHROBSC-PK8-SUB: pH 7.0 - 9.0 measurement range, 10cm long, 2m cable, with -SUB connector

  • PHROBSC-PK7-SUB: pH 6.0 - 8.0 measurement range, 10cm long, 2m cable, with -SUB connector

PHROBSC-PK5.jpg

PHROBSC-PK5

Robust Optical pH Probe Options for Liquid Samples
4mm tip diameter, response time (t90 <60 s), optically isolated, 4 exchangeable screw cap sensors
  • PHSP5-PK5: measurement range pH 4.0-6.0, response time (t90 <60 sec), requires SPGLUE glue

  • PHSP5-PK5-ADH: measurement range pH 4.0-6.0, response time (t90 <60 sec), self-adhesive

  • PHSP5-PK5-ADH-STER: same as PHSP5-PK5-ADH plus sterilized

  • PHSP5-PK6: measurement range pH 5.0-7.0, response time (t90 <60 sec), requires SPGLUE glue

  • PHSP5-PK6-ADH: measurement range pH 5.0-7.0, response time (t90 <60 sec), self-adhesive

  • PHSP5-PK6-ADH-STER: same as PHSP5-PK6-ADH plus sterilized

  • PHSP5-PK7: measurement range pH 6.0-8.0, response time (t90 <60 sec), requires SPGLUE glue

  • PHSP5-PK7-ADH: measurement range pH 6.0-8.0, response time (t90 <60 sec), self-adhesive

  • PHSP5-PK7-ADH-STER: same as PHSP5-PK7-ADH plus sterilized

  • PHSP5-PK8: measurement range pH 7.0-9.0, response time (t90 <60 sec), requires SPGLUE glue

  • PHSP5-PK8-ADH: measurement range pH 7.0-9.0, response time (t90 <60 sec), self-adhesive

  • PHSP5-PK8-ADH-STER: same as PHSP5-PK8-ADH plus sterilized 

  • PHSP5-PK8T: same as PHSP5-PK8, but measurement range on total scale, requires SPGLUE glue

pH Sensor Spots.jpg

PHSP5-PK5

Optical pH Sensor Spot Options - Now Autoclavable
Requires transparent surface, fiber optic cables and adapters for complete setup
Optical pH Flow-Through Cell Options - Now Sterilized
For inline monitoring, 1-500 mL/min recommended flow rate, response time (t90<90 sec)

  • PHFLOW-PK5: range pH 4.0-6.0, sterilized w/25kGy beta-irradiation, no reference electrode required

  • PHFLOW-PK6: range pH 5.0-8.0, sterilized w/25kGy beta-irradiation, no reference electrode required

  • PHFLOW-PK7: range pH 6.0-8.0, sterilized w/25kGy beta-irradiation, no reference electrode required

  • PHFLOW-PK8: range pH 7.0-9.0, sterilized w/25kGy beta-irradiation, no reference electrode required

  • PHFTCR-PK5: measurement range pH 4.0-6.0, no reference electrode required, DISCONTINUED

  • PHFTCR-PK6: measurement range pH 5.0-8.0, no reference electrode required, DISCONTINUED

  • PHFTCR-PK7: measurement range pH 6.0-8.0, no reference electrode required, DISCONTINUED

  • PHFTCR-PK8: measurement range pH 7.0-9.0, no reference electrode required, DISCONTINUED

  • PHFTCR-PK8T: same as PHFTCR-PK8, but measurement range on total scale, DISCONTINUED

PHFLOW-PK5.jpg

PHFLOW-PK5

Optical pH Sensor Vial Options
With optical isolation, requires fiber cables and adapters for complete setup, 4 vials per pack
  • PHVIAL20-PK7: with integrated pH sensor (range 6-8), ca. 20ml volume

  • PHVIAL20-PK8: with integrated pH sensor (range 7-9), ca. 20ml volume

  • PHTOVIAL20-PK7: with integrated oxygen, pH (range 6.0-8.0) and temperature sensors, ca. 20ml 

  • PHTOVIAL20-PK8: with integrated oxygen, pH (range 7.0-9.0) and temperature sensors, ca. 20ml 

  • PHTVIAL20-PK7: with integrated pH (range 6.0-8.0) and temperature sensors, ca. 20ml 

  • PHTVIAL20-PK8: with integrated pH (range 7.0-9.0) and temperature sensors, ca. 20ml 

PHVIAL20-PK7.jpg

PHVIAL20-PK7

pH Calibration Capsules
10 capsules per pack, each capsule results in 100mL buffer solution
  • PHCAL2: Buffer capsules for 100ml buffer (pH 2), for calibration of optical pH sensors

  • PHCAL11: Buffer capsules for 100ml buffer (pH 11), for calibration of optical pH sensors

PHCAL2.jpg

PHCAL2

Calibration pH Capsules

 
 
 
 
 

Necessary Accessories for Sensor Spots, Vials and Flow-through Cells

Compatible with Oxygen, pH and Temperature Contactless Sensors
  • SPFIB-BARE: optical fiber, for contactless readout, to measure through 0-2mm thickness, 1m length

  • SPFIB-LNS: optical fiber with lens, to measure through 3-10mm thick materials, 1m length

  • SPADBAS: Basic spot adapter, compatible to SPFIB-BARE, PICFIB2 or PICROD2, SPGLUE for fixation

  • SPFIB-BARE-CL2: same as SPFIB-BARE, 2m length

  • SPFIB-LNS-CL2: same as SPFIB-LNS, 2m length

  • SPFIB: optical fiber, for contactless readout, to measure through 0-2mm thickness, 1m length, ST-connector on both ends

  • SPGLUE: Transparent silicone glue Elastosil E43, (ca. 90 ml), for fixing sensor spots or SPADBAS

  • SPGLUE-KIT: Glueing kit with 1 spoon spatula (SPTLA), disposable syringe with screw cap, Luer-Lock fixture, 5 flat needles

  • SPTLA: 300mm long spatula for handling sensor spots, to position and fix sensor spot during gluing

  • ADVIAL20T: Adapter ring for 20mL vials with up to 3 sensors, compatible to SPFIB-BARE and PICFIB2

  • ADVIAL4T: Adapter ring for 4mL vials with up to 2 sensors, compatible to SPFIB-BARE and PICFIB2

  • SEPVIAL4: Septa with lids (with and without hole), for replacement in 4mL sensor vials

  • SEPVIAL20: Septa with lids (with and without hole), for replacement in 20mL sensor vials

  • ADPATCH: adhesive sticker patches, for piercing with protected O2 minisensors

  • PICFIB2: fiber for contactless readout with PICO-type meters only, for 0-10mm thick walls, 1m length

  • PICROD2: optical fiber rod, with PICO-connector, for 0-10mm thick walls, ca. 40mm length

  • PICROD3: optical fiber rod, PICO-connector, Ø = 3mm, 51.5mm length, for 0-20mm thick walls

  • PICFIB2-LNS: same as PICFIB2 but for 0-20mm thick walls

  • PICROD2-LNS: same as PICROD2 but with focusing lens, ideal for microfluidics

  • SPFIB-LNS-SUB: same as SPFIB-LNS, but with underwater SUB-connector (SUB)

  • SPFIB-LNS-CL2-SUB: same as SPFIB-LNS-CL2, but with underwater SUB-connector (SUB)

SPFIB-BARE-7cfc2246.jpg

SPFIB-BARE