Description
Accuracy and longevity at your fingertips.
Whether a retrofit or a new installation, EasyFerm Plus PHI pH sensors come with industry standard electrical connector options and temperature compensation. If connecting to a controller, a wide variety of adapter cables are available to mate with any device.
Only Hamilton Company has specialised membrane glass for biopharma applications. PHI glass offers high chemical robustness and very little shift aftere repeated autoclave and SIP sterilisations. The Phermlyte electrolyte paired with a pre-pressurised reference and the HP Coatramic diaphragm delivers constant electrolyte flow, resulting in drift free measurement for hte life of the sensor.
Traditional sensors offer a standard mV signal that works with existing bioreactors and transmitters. Arc sensors can be connected directly to the control system through 4-20mA or digital signals. Memosens sensors are fully compatible with all existing Memosens transmitters on the market.
Specifications
| a-length | 120mm, 225mm, 325mm, 425mm |
|---|---|
| Electrical Connector | S7/S8, K8, VP6, Arc, Memosens |
| Measurement Principle | Combination electrode; pH potential measured against reference |
| Measuring Range | pH 0 to 14 |
| Sensitivity | 57 to 59 mV / pH at 25 °C |
| Zero Point | 0 ± 20 mV |
| pH Glass | Hamilton Type PHI Glass |
| pH Glass Resistance | Moderate |
| Membrane Shape | Spherical |
| Diaphragm | HP-Coatramic |
| Number of Diaphragms | 1 |
| Electrolyte | Pressurized Phermlyte |
| Reference System | Hamilton Everef-F, Silver ion barrier included |
| Liquid Earth | No |
| Temperature Sensor | Arc - Yes, Memosens - Yes, VP6 - Pt100/Pt1000, K8 - No, S7/S8 - No |
| Diameter | 12 mm |
| Process Connection | PG13,5 |
| Wetted Parts | Glass Ceramic EPDM (Ethylene propylene elastomer) |
| O-ring Material | FDA 21 CFR 177.2600; EG 1935/2004; USP <87>; USP <88> Class VI (121 °C) |
| Serial Number | Yes |
| Recommended Storage | Hamilton Storage Solution or 3 M KCl |
| Certificate | Yes, with measured values in Buffer pH 4.01 and pH 7.00 |
| Autoclavable | Yes |
| CIP | Yes |
| Steam Sterilizable | Yes |
| Operating Temperature Range | 0 to 140 °C |
| Sample min Conductivity | 100 µS/cm |
| Pressure Range bar g | 0 to 6 bar |
Specific Arc sensor specifications
| Analog Interface 1 | 4-20 mA for pH, programmable |
|---|---|
| Analog Interface 2 | 4-20 mA for Temp., programmable |
| Analog Interface 1 and 2 | Galvanically not isolated; pulse width modulation 3.5 kHz |
| Digital Interface | RS485 Modbus (max. 31 addresses) |
| Configurable Values | pH: pH, mV; Temperature: °C, K, °F |
| Temperature Sensor | NTC22 kOhm |
| Baud Rate | 4800, 9600, 19200, 38400, 57600,115200 bd |
| Operating Voltage | 7 to 30 VDC max. 150 mW |