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The EasyFerm Bio family of pH sensors is designed for applications in the Pharmaceutical, Biotechnology and Food & Beverage industries. All family members have the same reference electrolyte Foodlyte, with its certified bio-compatibility. The standard EasyFerm Bio, with its HB glass, is directed at the Food & Beverage industry where CIP and SIP cycles occur frequently because the glass shows a very fast recovery leading to a shortened set-up time
| Sensor Output | Arc: Modbus, 4 to 20 mA |
|---|---|
| Sensitivity | 57 to 59 mV / pH at 25 °C |
| Zero Point | 0 ± 20 mV |
| pH Glass | Hamilton type HB glass |
| pH Glass Resistance | Moderate |
| Membrane Shape | Spherical |
| Diaphragm | HP-Coatramic |
| Number of Diaphragms | 1 |
| Reference System | Hamilton Everef-F, Silver ion barrier included |
| Diameter | 12 mm |
| Length | 325 mm |
| Recommended Storage | Hamilton Storage Solution or 3 M KCl |
| Sample min Conductivity | 100 µS/cm |
| Operating Temperature Range | Analog interface: 0 to 110 °C; Digital interface: 0 to 140 °C |
| Pressure Range | 0 to 6 bar |
| ATEX Approval | No |
| Autoclavable | Yes, Maximum Temperature 130 °C |
| CIP | Yes |
| Electrical Connector | VP8 |
| Electrolyte | Pressurized Foodlyte |
| Liquid Earth | Yes |
| Measurement Principle | Combination electrode; pH potential measured against reference |
| Measuring Range | pH 0 to 14 |
| O-ring Material | FDA 21 CFR 177.2600; EG 1935/2004; USP <87>; USP <88> Class VI (121 °C) |
| Parameter | pH |
| Process Connection | PG13,5 |
| Sensor Family | EasyFerm Bio |
| Serial Number | Yes |
| Steam Sterilizable | Yes, Maximum Temperature 140 °C |
| Temperature Sensor | NTC 22 kOhm |
| Wetted Parts | Glass \nVMQ (Silicone elastomer) |
| Analog Interface 1 | 4 to 20 mA for pH, programmable |
| Analog Interface 1 and 2 | Galvanically not isolated; pulse width modulation 3.5 kHz |
| Analog Interface 2 | 4 to 20 mA for Temperature programmable |
| Baud Rate | 4800, 9600, 19200, 38400, 57600,115200 Bd |
| Configurable Values | pH: pH, mV; Temperature: °C, K, °F |
| Digital Interface | RS485 Modbus (Maximum 31 addresses) |
| Operating Voltage | 7 to 30 VDC Maximum 150 mW |
