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SE 558

pH Sensor

For uncomplicated measurement in ultrapure water, water and analytical chemistry. Also digital, with Memosens technology.

Facts and Features

Low maintenance, no refilling of electrolyte
Integrated temperature detector
3 ceramic junctions
Independent of flow
KCl reservoir
Alpha glass, medium impedance, universal glass, fluoride resistant

Memosens Sensors

Perfect galvanic isolation thanks to Memosens technology
No influence of humidity in the connector
Precalibration in the lab
Digital data transfer
Integrated sensor diagnostics
more

Low-maintenance pH sensors with gel reference electrolyte. The SE 558 sensor has an integrated temperature detector to allow automatic temperature compensation of the pH signal during calibration and operation.


	SE 503	SE 515	SE 554	SE 555	SE 557	SE 558	SE 559	SE 560	SE 571	SE 564	SE 565
Measurement parameters	pH	pH	pH / ORP	pH / ORP	pH	pH	pH	pH	pH	ORP	ORP
pH / ORP Range	0 … 14	0 … 14	0 … 14 / ± 1500 mV	0 … 14 / ± 1500 mV	0 … 14	0 … 14	0 … 14	0 … 14	0 … 14	± 1500 mV	± 1500 mV
Medium	Water	Water	strongly oxidizing media, polluted media	aggressive media, extreme pH values	Water, Boiler feed water	water for injection (WFI), ultrapure water	Water	cooling brine, low-conductivity media	media of extremely high ionic strength, strongly oxidizing media	Dyes, polluted media	heavily polluted media
Temperature	-5 … 80 °C	-5 … 80 °C	0 … 130 °C	0 … 135 °C	-20 … 100 °C / 0 … 135 °C	-5 … 100 °C	-5 … 100 °C	-20 … 80 °C (100°C)	0 … 130 °C	0 … 130 °C	0 … 135 °C
Pressure, Relative	0 … 2 bar	0 … 4 bar	0 … 10 bar	-1 … 6 bar	-1 … 6 bar	-1 … 3 bar	0 … 6 bar	-1 … 0,5 (3) bar	0 … 12 bar	0 … 10 bar	-1 … 6 bar
Temperature Detector	Pt1000	NTC 30 kΩ	NTC 30 kΩ / Pt1000	NTC 30 kΩ / Pt1000	NTC 30 kΩ / Pt1000	NTC 30 kΩ / Pt1000	NTC 30 kΩ	Pt1000	NTC 30 kΩ	NTC 30 kΩ	NTC 30 kΩ
pH Glass / Electrode Material	Universal	Universal	Universal	High temperatures, high pH values	Low / high temperatures, universal, high pH values	Universal	Universal	Low temperatures, universal	Universal	Platinum	Platinum
Junction	Ceramic, 2x	Ground glass sleeve	Hole	Ceramic	Ceramic	Ceramic, 3x	Annular junction	Platinum (3x)	PTFE ring	Hole	Ceramic
Reference Electrolyte	Gel	Gel	Polymer	Gel, pressurized	Liquid, refillable	Gel with KCl reservoir	Polymer	Liquid, refillable	Gel with KCl reservoir	Polymer	Gel, pressurized
Connector	VP	Memosens	Memosens / VP	Memosens / VP / S8	Memosens / VP	Memosens / VP	Memosens	VP / Memosens	Memosens	Memosens / S8	Memosens
Mounting	Pg 13.5	Pg 13.5	Pg 13.5	Pg 13.5	Fitting	Pg 13.5	Pg 13.5	Pg 13.5	Pg 13.5	Pg 13.5	Pg 13.5
Certification			ATEX	ATEX	ATEX	ATEX	ATEX	ATEX	ATEX	ATEX	ATEX


Conductivity Sensors	SE 600	SE 603	SE 604	SE 605 (H)	SE 610	SE 615	SE 620	SE625	SE 630	SE 655	SE 656	SE 670	SE 680
Measurement Parameters	Cond	Cond	Cond	Cond	Cond	Cond	Cond	Cond	Cond	CondI	CondI	CondI	CondI
Measuring Range	0.5 µS/cm … 600 mS/cm	0.5 µS/cm … 600 mS/cm	0 … 500 (1000) µS/cm	0 ... 600 µS/cm ± 2 % 600 ... 1000 µS/cm ± 4 %	0.1 … 1000 µS/cm	10 µS/cm … 20 mS/cm	0.05 … 50 µS/cm	0 … 1000 µS/cm	10 (5) µS/cm … 20 (50) mS/cm	0.001 … 2000 mS/cm	0.001 … 2000 mS/cm	0.02 … 2000 mS/cm	0,02 … 2000 mS/cm
Measuring Principle	4 electrodes	4 electrodes	2 electrodes	2 electrodes	2 electrodes	2 electrodes	2 electrodes	2 electrodes	2 electrodes	Inductive	Inductive	Inductive	Inductive
Temperature	0 … 210 °C	0 … 120 °C	-20 … 120 °C	-20 … 135 °C	10 … 90 °C	-5 … 80 °C	0 … 135 °C	-10 … 120 °C	-20 … 135 °C	-20 … 125 °C	-20 … 125 °C	0 … 60 °C	-10 … 125 °C
Pressure, Relative	0 … 25 bar	0 … 12 bar	0 … 25 bar	0 … 25 bar	0 … 6 bar	0 … 4 bar	0 … 16 bar	-1 ... 16 bar	0 … 16 bar	0 … 20 bar	0 … 16 bar	0 … 10 bar	0 … 10 bar
Temperature Detector	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Electrode Material	Stainless steel 316 L	Platinum	1.4571 stainless steel	Stainless steel 1.4435	1.4571 stainless steel	Graphite	Stainless steel 1.4435	3.7035 (Titan Grade 2)	Graphite	---	---	---	---
Body Material	PTFE / stainless steel 316 L	PTFE	1.4571 stainless steel	Stainless steel 1.4435	PEI	Polysulfone	Stainless steel 1.4435	Stainless steel 1.4404	PES	PEEK	PFA	PP	PEEK virgin FDA
Connection	Fixed cable	Fixed cable	Memosens / 7-pin connector	Memosens	Fixed cable	Memosens	VP	Memosens	Memosens / 5 m cable	5 m fixed cable	5 m fixed cable	M12	M12
Mounting	1“ weld nipple	Special flange	G 1“ thread	Ingold socket	G 1/2" thread	Pg 13.5	Clamp DN 25	NPT 3/4" thread	G 1" thread	G 3/4" thread	G 3/4" thread	Various	Various
Certification			ATEX	ATEX					ATEX	ATEX	ATEX		ATEX


Oxygen Sensors	SE 706	SE 707	SE 715	SE 740
Measurement Parameters	Oxy	Oxy	Oxy	Oxy
Measuring Range	6 ppb ... saturation	1 ppb ... saturation	10 ppb … 20 ppm	4 ppb … 25 ppm
Measuring Principle	Amperometric	Amperometric	Amperometric	Optical
Temperature Range, Oxy Measurement	0 … 80 °C	0 … 80 °C	-5 … 45 °C	-10 … 85 °C
Pressure, Relative	-0.8 … 5 bar	-0.8 … 5 bar	0 … 2 bar	-1 … 12 bar
Body Material	1.4404 stainless steel	1.4404 stainless steel	Polysulfone / stainless steel	Stainless steel 1.4435
Sterilization Capability	Steam max 135 °C	Steam max 121 °C		Steam max 140 °C
Connection	Memosens / VP	Memosens / VP	Memosens	M12
Mounting	Pg 13.5	Pg 13.5	Pg 13.5	Pg 13.5
Approval	ATEX	ATEX

SE 558

pH Sensor

For uncomplicated measurement in ultrapure water, water and analytical chemistry. Also digital, with Memosens technology.

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pH / ORP Sensors

Conductivity Sensors

Oxygen Sensors