Hamilton MecoTrode pH Electrode

Hamilton MecoTrode is an industrial pH electrode designed for chemical processes with extreme pH values and high process temperatures. It measures 0 to 14 pH at process temperatures of 0 to 130 °C. The standard MecoTrode H uses an H-glass membrane, which gives a low alkaline error and stable measurement even at high temperatures; the MecoTrode HF uses an HF glass. Mikron Proses (Üsküdar, Istanbul) supplies Hamilton process sensors in Turkey and provides application consulting on sensor selection and fitting.

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Design

Three high-performance (HP) ceramic diaphragms reduce the effect of flow potential in viscous liquids and in pipe-mounted installations. The reference system is Everef with a viscous 3 M KCl-Pharma electrolyte (blue). The sensor is low-maintenance and is listed by the manufacturer for water and wastewater and for industrial processes. With the Arc version, a micro-transmitter in the sensor stores the calibration data, so the sensor can be connected directly to process automation.

MecoTrode family and variants

Model	Membrane / feature	Temperature and pressure
MecoTrode H	Standard H glass; low alkaline error, stable at high temperature	0 to 130 °C; 0 to 16 bar g at 25 °C, 0 to 6 bar g at 130 °C
MecoTrode HF	HF glass	0 to 130 °C; 0 to 16 bar g at 25 °C, 0 to 6 bar g at 130 °C
OxyTrode Pt	ORP (redox) version of the MecoTrode; platinum wire, ±2000 mV	0 to 130 °C; 0 to 16 bar g at 25 °C, 0 to 6 bar g at 130 °C

Ordering information in the catalog (a-length 120 mm): MecoTrode H is available with S8, VP6, MS and Arc connectors; MecoTrode HF is listed with the MS connector in 120 mm and 225 mm. For more on choosing a pH sensor, see the pH electrode selection guide.