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Sensor Family: EasyFerm Plus
Parameter: pH
Sensor Output: Arc: Modbus, 4 to 20 mA
a-length: 325 mm
Electrical Connector: VP8
Measurement Principle: Combination electrode; pH potential measured against reference
Measuring Range: pH 0 to 14
Additional specifications
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
Temperature Sensor: NTC 22 kOhm
Configurable Values: pH: pH, mV; Temperature: °C, K, °F
Diameter: 12 mm
Process Connection: PG13,5
Wetted Parts: Glass
EPDM (Ethylene propylene elastomer)
O-ring Material: FDA 21 CFR 177.2600; EG 1935/2004; USP <87>; USP <88> Class VI (121 °C)
Analog Interface 1: 4 to 20 mA for pH, programmable
Analog Interface 2: 4 to 20 mA for Temp., programmable
Analog Interface 1 and 2: Galvanically not isolated; pulse width modulation 3.5 kHz
Digital Interface: RS485 Modbus (max. 32 addresses)
Baud Rate: 4800, 9600, 19200, 38400, 57600,115200 Bd
Operating Voltage: 7 to 30 VDC max. 150 mW
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
ATEX Approval: No
IECEx Approval: No
Autoclavable: Yes, max. Temperature 130 °C
CIP: Yes
Steam Sterilizable: Yes, max. Temperature 140 °C
Operating Temperature Range: Analog interface: 0 to 110 °C; Digital interface: 0 to 140 °C
Sample min Conductivity: 100 µS/cm
Pressure Range bar g: 0 to 6 bar
