WTW SensoLyt® pH / ORP Sensors

For continuous pH/ORP measurement, especially under the difficult conditions very often found in sewage treatment facilities, very high demands are made concerning the reliability and operating safety of the systems employed.

  • SensoLyt® Sensor Assemblies
  • SensoLyt® Combination Electrodes

Designed specifically for harsh applications, the SensoLyt® sensors are precision engineered assemblies, which consist of a submersible housing with a built-in preamplifier and the appropriate combination pH or ORP electrode. In combination with our high-performance monitors, the sensors constitute an integrated, extremely reliable pH/ORP measuring system which represents the highest standard, state-of-the-art technology with regard to accuracy, EMC noise immunity and economy.

The digital technology of the IQ sensors, which can store calibration values directly in the sensor, offer particular advantages. This feature allows the user to calibrate the sensor in the laboratory and then return it to its location of use. This provides a certain independency, especially in winter or with bad weather conditions. Its sensor's quick coupler permits direct reintegration into the system.

SensoLyt® Sensor Assemblies

  • Sensor check function for glass breakage detection
  • Robust mechanical design
  • Simple change of pH electrode
  • Pre-calibration of sensor possible (SensoLyt® 700 IQ)

 

SensoLyt® 700

The SensoLyt® 700 standard assembly incorporates an integrated preamplifier and a built-in stainless steel NTC temperature sensor. When using a WTW monitor, a special circuitry allows the pH electrode to be monitored for glass breakage. In addition, the SensoLyt® 700 offers as a standard feature an efficient lightning protection system. The SensoLyt® 700 sensor assembly can be fitted with any combination electrode of the SensoLyt® series. It is compatible with all WTW monitors of the EcoLine and QuadroLine® Series.

Analog Sensor  
Temperature Integrated NTC, 0 ... +60 °C
Operating temperature 0 ... +60 °C

SensoLyt® 690
Same as SensoLyt® 700, but without the SensCheck function.

Analog Sensor  
Temperature Integrated NTC, 0 ... +60 °C
Operating temperature 0 ... +60 °C

SensoLyt® 650
The SensoLyt® 650 unit is a passive assembly without preamplifier; i.e., it is designed for "high-impedance operation" with the electrode connected directly to the monitor input. The assembly is directly compatible with the high-impedance input of following WTW monitors: pH 170 and pH 296 or Stratos 2211 X pH models.

Analog Sensor  
Temperature Integrated NTC, 0 ... +60 °C
Operating temperature 0 ... +60 °C

SensoLyt® 700 IQ
Digital pH/ORP armature with integrated preamplifier and lightning protection as well as digital signal processing and integrated temperature probe for connection to an IQ SENSOR NET. A special circuiting permits glass breakage detection monitoring. Due to the integrated calibration value memory, a "pre-calibrated pH measurement", the value of which is stored in the sensor, can be set in the laboratory. The sensor's quick release coupling allows the user to remove it from the location of use and return it after successful calibration in the laboratory. With an IQ connection in the laboratory, inconvenient field calibration under adverse conditions can be completely eliminated.

Digital Sensor  
Temperature Integrated NTC, -5 ... +60 °C
Operating temperature 0 ... +60 °C

SensoLyt® Combination Electrodes

  • Reliable
  • Stable against interference
  • Easy to maintain


SensoLyt® SEA / SE*
This pressure and temperature resistant combination pH electrode incorporates a double pin-hole diaphragm and a gel polymer solid electrolyte, which is AgCl free and therefore resistant to sulfides.

  • Highly contaminated sewage
  • Emulsions and suspensions
  • Media containing proteins and sulfides
pH 2 ... 12
Operation conditions
(Overpressure/temperature)
10 bar / 20°C
1 bar / 60°C
0 ... 60 °C

SensoLyt® SEA-HP
Analog SensoLyt® SEA version, with optimized armoring for use under high pressure / temperature conditions.

  • Inline measurement in pipes
pH 4 ... 12
Operation conditions
(Overpressure/temperature)
10 bar / 60°C
0 ... 60 °C


SensoLyt® DWA / DW*
Especially its long service life and precise measurement make it stand out from the crowd, in particular for measurements of drinking water with low conductivity.

  • Drinking water
pH 0 ... 14
Operation conditions
(Overpressure/temperature)
6 bar / 20°C
1 bar / 60°C
0 ... 60 °C

SensoLyt® ECA / EC*
This combination pH electrode has a single pin-hole diaphragm and a gel electrolyte. With its long-term stability it provides an economical solution, particularly in most wastewater facilities.

  • Normally polluted wastewater
pH 2 ... 12
Operation conditions
(Overpressure/temperature)
6 bar / 20°C
1 bar / 60°C
0 ... 60 °C


SensoLyt® PtA / Pt*
This ORP electrode is also fitted with a pinhole diaphragm, and is primarily recommended for applications in heavily contaminated wastewater.

  • Municipal and industrial sewage
  • Emulsions and suspensions
  • Media containing proteins and sulfides
mV** ±2000
Operation conditions
(Overpressure/temperature)
10 bar / 20°C
1 bar / 60°C
0 ... 60 °C


* electrode without armor for direct use in flow-thru vessels
** Depending on monitor