The heart of a pH measuring loop is the electrode system. Yokogawa has designed a wide range of electrodes to ensure this heart keeps beating under the most severe conditions. The dimensions and design meet the requirements of DIN 19263 (excluding the refillable types). A high degree of standardization makes it possible to mount any electrode in the standard program of fittings. Color coded strips on electrode and cable and clear identification of sensor specifications make incorrect installation virtually impossible.
- Wide range of electrodes to suit all process conditions.
- Gold plated spring connector parts, for good electrical contact under the most severe conditions.
- Coaxial plug and socket with watertight sealing that meets the requirements of IP65.
- Color coded strips for easy identification of electrodes and cables.
- High degree of standardization for mounting in flow- and immersion fittings
2.2 General specificationSC29(C)
Type SC29(C)-PT29
Combined reference/reference, electrode(Non flow type)
Measuring range: -1500...1500mV
Temp range: -10 to 100 °C
Pressure range: 1.5 kPa... 500 kPa
Membrane: Solid Platinum cup
Diaphragm: Porous PTFE
(Impedance <5 kΩ)
Reference system: Ag/AgCl Saturated. KCl
Type SC29(C)-PT55
Combined reference/reference electrode(Flow type)
Temp range: -10 to 100 °C
Pressure range: 1.5 kPa... 500 kPa
Membrane: Solid Platinum cup
Diaphragm: Ceramic(Impedance <5 kΩ)
Reference system: Ag/AgCl 3.3m. KCl
Type SC29-PtG29
Combined reference/glass electrode
Temp range: 0 to 100 °C
Pressure range: 1.5 kPa... 1000 k
PaMembrane: Solid Platinum
Glass: general purpose pH glass
2.3 Shipping details
SC21(C), SC29(C)
Package size (LxWxH): 120x45x45 mm
10.6x2x1 inch
Package weight (max): 0.08 kg (0.17 lbs)
SC21(C-AGESS, SC29C-PT55
Package size (LxWxH): 300x95x73 mm
11.8x3.7x2.9 inch
Package weight (max): 0.22 kg (0.48 lbs)
2.4 Environmental conditions
Storage temperature: -10 to +50 °C (14 to 122 °F)
When an electrode remains unused for a long period, it is necessary to fill the electrode completely with electrolyte solution, close the refill opening, and fit the protective cap with a small piece of mem - brane. This must be filled with water
2.5 Regulatory standardsCE
RoHS: Directive 2011/65/EU
Commission Delegated Directive (EU) 2015/863 amending Annex II as regards the list of Restricted Substances, and by applying Annex IV as regards the application of sensors, detectors and electrodes, by applying the following standards:
EN-IEC 63000:2018
Technical documentation and the assessment of electrical and electronic products with respect to the restriction of hazardous substances.
UKCA
RoHS: The Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2012
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Industrial pH/ORP Electrode Water Quality Sensor with Wide Measuring Range High Temperature and Pressure Resistance Images
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