HAMILTON EasyFerm Plus PHI Arc 325 pH Sensor (pH 0 ~ 14)

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

Datasheet