CPS91E Digital pH sensor

Product Item : CPS91E-AA7BTH2
Category： Analysis
Measuring principle: Potentiometric
Application: Process technology and monitoring of processes with: • Rapidly changing pH values • High proportion of electrode poisons such as H2S
Characteristic: Digital pH electrode for chemical process with an ion trap for poison-resistant reference
Measuring principle: Potentiometric Application Process technology and monitoring of processes with: • Rapidly changing pH values • High proportion of electrode poisons such as H2S Characteristic D
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Digital pH sensor Memosens CPS91E

Memosens 2.0 pH electrode for chemical processes and poisoning media

Field of application

Memosens CPS71E is specially designed for demanding processes. Its unique, contamination-resistant reference and its resistance to moisture ensure reliable measurement even in heavily polluted, aggressive media such as strong acids and bases. Thanks to Memosens 2.0 digital technology, CPS71E offers extended storage of calibration and process data providing the perfect basis for predictive maintenance. Pre-calibration in the lab and quick sensor exchange on site maximize process uptime.

Processes in chemical industry and monitoring of processes with:

High proportion of electrode poisons such as H2S
Quickly changing pH values

With ATEX, IECEx, CSA C/US, NEPSI, Japan, INMETRO approvals for use in hazardous areas, zones 0, 1 and 2.

Benefits

The electrode's unique ion trap prevents poisoning of the junction and reference, making it resistant to strong acids and bases and ensuring a long sensor lifetime.
The optional pressurized reference allows for reliable measurement in blocking media such as dispersions.
Flexible installation thanks to optional upside-down mounting
Inductive cable connection and non-contact signal transmission eliminate any problems due to moisture or corrosion and increase process integrity.
Fast sensor exchange on site reduces process downtime and operating costs.
Memosens 2.0 digital technology makes trend identification and predictive maintenance possible thanks to its extended storage of calibration and process data. The technology paves the way for advanced IIoT services.

Measuring principle

Potentiometric
Application

Process technology and monitoring of processes with:
• Rapidly changing pH values
• High proportion of electrode poisons such as H2S
Characteristic

Digital pH electrode for chemical process with an ion trap for poison-resistant reference
Measurement range

Application B:
• pH: 0 to 14
Application H:
• pH: 0 to 12
Measuring principle

Gel compact electrode with ceramic junction and ion trap
Design

All shaft lengths with temperature sensor
Advanced gel technology
Material

Sensor shaft: Glass to suit process
pH membrane glass: Type B, Type N
Metal lead: Ag/AgCl
Open aperture: Ceramic junction, zirconium dioxide
O-ring: FKM
Process coupling: PPS fiber-glass reinforced
Nameplate: Ceramic metal oxide
Dimension

Diameter: 12 mm (0.47 inch)
Shaft lengths: 120, 225, 360 and 425 mm
(4.72, 8.86, 14.2 and 16.7 inch)
Process temperature

1 to 140 °C (32 to 284 °F)
Process pressure

0,8 to 14 bar (11,6 to 203 psi) (absolute)
Temperature sensor

NTC 30k
Ex certification

With ATEX, IECEx, CSA C/US, NEPSI, Japan Ex and INMETRO approvals for use in
hazardous areas Zone 0, Zone 1 and Zone 2.
Connection

Inductive, contactless connection head with Memosens 2.0 technology
Ingress protection

IP68
Additional certifications

Additional certifications

CPS91D-7BT21 replaced by CPS91E-AA7BTH2

	Basic model
	Orbipore CPS91D Memosens
	Version:
7	basic version
	Application Range:
BT	0-14pH; 0-110oC; 13 bar; with ion trap
	Shaft Length:
2	120mm
	Approval:
1	Non-hazardous area