OneFerm pH

Specification Sheet

OneFerm pH K8 pH sensor

Hamilton's OneFerm single-use pH sensors provide reliable, stable, and accurate measurements for biopharma applications, seamlessly integrating into SU bioreactors and systems with a clog-free design, bio-compatibility, and customizable options, maintaining performance even after gamma irradiation.

Product Specifications

Process Connection
Process Connection
PG13,5
Wetted Parts
Wetted Parts
GΙass
VMQ (Silicone elastomer)
Sensor Output
Sensor Output
Traditional: mV
Measuring Range
Measuring Range
pH 3 to 10
Sensitivity
Sensitivity
Before gamma irradiation: 57 to 60 mV/pH at 25 °C (97 % -101 %); Shift after gamma irradiation: ± 1.5 mV/pH
Zero Point
Zero Point
Before gamma irradiation: ± 20 mV; Shift after gamma irradiation: ± 10 mV
Calibration Data
Calibration Data
Yes, provided on sensor label
pH Accuracy
pH Accuracy
After gamma irradiation and dry storage: ± 0.15 pH with provided calibration values.
± 0.1 pH after product calibration at the measurement temperature and within 2 pH units from the product calibration point
Drift at Room Temperature
Drift at Room Temperature
< 0.1 pH per week after wet-in time, in buffer pH 7
Membrane Shape
Membrane Shape
Spherical
Diaphragm
Diaphragm
HP-Coatramic
O-ring Material
O-ring Material
FDA 21 CFR 177.2600; EC 1935/2004; USP <87>; USP <88> Class VI (121 °C)
Biocompatibility
Biocompatibility
Yes, tested according to ISO 10993-5 and USP <87>
Wet-in Time
Wet-in Time
30 min after dry storage
Shelf Life
Shelf Life
12 months prior gamma irradiation. 18 months after gamma irradiation
Diameter
Diameter
12 mm
Autoclavable
Autoclavable
No
Steam Sterilizable
Steam Sterilizable
No
CIP
CIP
No
Gamma Irradiatable
Gamma Irradiatable
Yes, up to 50 kGy
X-Ray irradiatable
X-Ray irradiatable
Yes, up to 50 kGy
Operating Temperature Range
Operating Temperature Range
4 to 50 °C
Sample min Conductivity
Sample min Conductivity
100 µS/cm
Specifications are subject to change without notice
https://www.hamiltoncompany.com/sensors/ph-sensors/oneferm/oneferm-ph
Spec. Version B