SENSOR / PROBES

PH SENSOR GENERAL PURPOSE

Tethys General Purpose pH Sensor with ¾”NPT thread on both front & back is a heavy-duty pH probe with Ryton body suitable for many industrial water application.

Tethys General Purpose pH Sensor with ¾”NPT thread on both front & back is a heavy-duty pH probe with Ryton body suitable for many industrial water application. Mounting thread on both front and back allow for in-pipe (continuous measurement) or submersible installations of pH Sensor. This pH sensor offers excellent chemical and impact resistance.

  • Industrial waste water treatment plant
  • Drinking water treatment plant
  • Other process water application
  • Municipal waste water treatment plant
  • Surface water application
SPECIFICATIONS

 

 pH Range0-14 pH
 Response Time5 seconds to 95% of full response
pH Sensor TypeConvertible style combination pH sensor
Body MaterialRyton
ReferenceDouble Junction with porous Teflon
MountingImmersion or In-Line
Temperature Range0-80 °C
Maximum Operating Pressure100 psi
Temperature ElementPt-100 Ohm RTD
Temperature CompensationAutomatic
Integral Sensor Cable Length6 meter
Mounting Thread on Sensor Body¾” NPT threads, front & back

 

REFERENCE PART

 

ELPHpH online electrode, general purpose
Range: 0-14
6 meters of cable length
Built-in ATC RTD 100 ohm
DOWNLOAD PH SENSOR GENERAL PURPOSE

PH Sensor General Purpose

Brochure For All Probes

PH SENSOR DIFFERENTIAL

Tethys Differential pH Sensor with 1 ½”NPT thread on both front & back is a heavy-duty pH probe with Ryton Polyphenylene Sulfide body suitable for many industrial water application.

Tethys Differential pH Sensor with 1 ½”NPT thread on both front & back is a heavy-duty pH probe with Ryton Polyphenylene Sulfide body suitable for many industrial water application. The differential design provides unsurpassed accuracy by virtually eliminating ground loops. Mounting thread on both front and back allow for in-pipe (continuous measurement) or submersible installations of pH Sensor. You can replace the salt bridge and refill the reference solution to keep pH electrode working longer. This pH sensor offers excellent chemical resistance for harsh application.

  • Industrial waste water treatment plant
  • Drinking water treatment plant
  • Other process water application
  • Municipal waste water treatment plant
  • Surface water application
SPECIFICATIONS

Dimension DrawingpH Range0-14 pH
pH Sensor TypeDifferential pH sensor
Body MaterialRyton @PPS body
pH stability (per 24 hour)0.03 pH
MountingImmersion or In-Line
Temperature Range0-85 °C
Temperature Element10K NTC
Temperature CompensationAutomatic
Maximum Pressure100 psi
Integral Sensor Cable Length6 meter
Mounting Thread on Sensor Body1 ½” NPT threads, front & back

REFERENCE PART

ELPH-DpH online electrode, differential sensor
Range: 0-14
6 meters of cable length
Built-in ATC RTD 100 ohm
ELPH-D-SReplacement salt bridge for differential pH Sensor
ELPH-D-RRefill solution for standard cell, 125 mL
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PH Sensor Differential

Brochure For All Probes

ORP SENSOR

Tethys General Purpose ORP Sensor with ¾”NPT thread on both front & back is a heavy-duty ORP probe with Ryton body suitable for many industrial water applications.

Tethys General Purpose ORP Sensor with ¾”NPT thread on both front & back is a heavy-duty ORP probe with Ryton body suitable for many industrial water applications. Mounting thread on both front and back allow for in-pipe (continuous measurement) or submersible installations of ORP Sensor. This ORP sensor offers excellent chemical and impact resistance.

  • Industrial waste water treatment plant
  • Drinking water treatment plant
  • Other process water application
  • Municipal waste water treatment plant
  • Surface water application
SPECIFICATIONS

 ORP Range-2000 to +2000 mV
 Sensor TypeConvertible style combination ORP sensor
Body MaterialRyton
Sensing elementPlatinum
ReferenceDouble Junction with porous Teflon
MountingImmersion or In-Line
Operating temperature Range0-80 °C
Maximum operating pressure100 psi
Integral Sensor Cable Length6 meter
Mounting Thread on Sensor Body¾” NPT threads, front & back

REFERENCE PART

ELORPORP online electrode
Range: -2000 mV – +2000 mV
6 meters of cable

DISSOLVED OXYGEN PROBE

Tethys Process Optical DO Probe is based on proven Luminescent Optical Technology suitable for most industrial application

Tethys Process Optical DO Probe is based on proven Luminescent Optical Technology suitable for most industrial application. It provides full featured performance, replaceable sensor caps, and long life. Mounting thread on both front and back allow for in-pipe (continuous measurement) or submersible installations of DO probe. Optical DO probe is suitable for measurement of dissolved oxygen measurement in various water and waste water application.

  • Industrial waste water treatment plant
  • Other process water application
  • Municipal waste water treatment plant
  • Surface water application
SPECIFICATIONS

 Measurement Range DO0-20 mg/L
 Working Temperature Range-5 to 50 °C
Measurement TechniqueLuminescent Optical Technology
Accuracy DO± 0.1 mg/L
Accuracy Temperature± 0.2 °C
Response Time40 second to 90% (T-90)
Body MaterialStainless Steel 316 body
Sensor ProtectionIP-68
Maximum operating pressure100 psi
Maximum operating temperature80 °C
Temperature CompensationIn-built, Automatic
Integral Sensor Cable Length10 meter
MountingImmersion or In-Line
Mounting Thread on Sensor Body1” NPT threads, front & back
Sensor CapReplaceable, Pre-calibrated
Expected Sensor Cap Life2 Year
Probe Warrantee1 Year

REFERENCE PART

DO-FDissolved oxygen probe by fluorescence
Range: 0-25 mg/l O2
10 meters of cable length
DO-F-SReplacement Sensor cap with matched microSD card
DO-F-CReplacement converter box

DISSOLVED OXYGEN PROBE AUTO CLEANING

Tethys Process Optical DO Probe is based on proven Fluorescence Optical Technology suitable for most industrial application.

Tethys Process Optical DO Probe is based on proven Fluorescence Optical Technology suitable for most industrial application. It is rugged, without replacement sensor cap and having auto-cleaning feature. It is designed for submersible mounting in open basin. Optical DO probe is suitable for measurement of dissolved oxygen measurement in various water and waste water application.

  • Industrial waste water treatment plant
  • Other process water application
  • Municipal waste water treatment plant
  • Surface water application
SPECIFICATIONS

 Measurement Range0-25 mg/L
 Working Temperature Range0 to 60 °C
Measurement TechniqueFluorescence Optical Technology
Accuracy1% of reading or 0.05 ppm, whichever is greater
Response Time60 second to 90% (T-90)
Wetted MaterialEpoxy, polyurethane and PVC
Sensor DriftLess than 2% per year
Repeatability0.02 ppm
Stability (per 24 hour period)0.02 ppm
Maximum Pressure100 PSI
Temperature CompensationIn-built, Automatic
Integral Sensor Cable Length10 meters
Sensor Cleaning Systemair or water wash option available
MountingSubmersible
Mounting Thread on Sensor Body1-1/2” NPT
Probe Warrantee1 Year

REFERENCE PART

DO-F-ACDissolved oxygen probe by fluorescence with automatic cleaning
Range: 0-25 mg/l O2
10 meters of cable length
DOWNLOAD DISSOLVED OXYGEN PROBE AUTO CLEANING

Dissolved Oxygen Probe Auto Cleaning

Brochure For All Probes

TOTAL SUSPENDED SOLIDS PROBE

Tethys Total Suspended Solid (TSS) Probe operate on the principle of single gap light absorption as a means of detecting the presence of suspended solids.

Tethys Total Suspended Solid (TSS) Probe operate on the principle of single gap light absorption as a means of detecting the presence of suspended solids. The sensors incorporate self-cleaning optics via air or water jet. The application involves measurement of total suspended solids concentration from Mixed Liquor Suspended Solid (MLSS), Return Activated Sludge (RAS), Waste Activated Sludge (WAS), clarifier effluent and plant effluent.

  • Industrial waste water treatment plant
  • Other process water application
  • Municipal waste water treatment plant
  • Surface water application
SPECIFICATIONS

 Measurement Low Range0-1500 mg/L




Measurement High Range250 – 30,000 mg/L
Accuracy Low Range Sensor5% of reading or 5 mg/l whichever is higher
Accuracy High Range Sensor5% of reading or 50 mg/l whichever is higher
Stability2% of reading
Repeatability2% of reading
Working Temperature Range0 to 60 °C
Measurement TechniqueIR light absorption
Response Time60 second to 90% (T-90)
Wetted MaterialEpoxy, polyurethane and PVC
Sensor DriftLess than 1% per year
Integral Sensor Cable Length10 meter
Sensor Cleaning Systemair or water wash option available
Maximum Pressure100 psi
MountingSubmersible
Mounting Thread on Sensor Body1-1/2” NPT
Probe Warrantee1 Year

REFERENCE PART

EXT-TURB-HTotal suspended solid (TSS) probes high range
High range: 0 – 30,000 mg/l TSS
10 meters cable
EXT-TURB-LTotal suspended solid (TSS) probes low range
Low range: 0 – 1500 mg/l TSS
10 meters cable
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Total Suspended Solid Probe

Brochure For All Probes

TURBIDITY SENSOR

Tethys Turbidity probes are based on Nephelometric Method (ISO 7027 – EN 27027). A light beam is sent to the sample through an optical lens.

Tethys Turbidity probes are based on Nephelometric Method (ISO 7027 – EN 27027). A light beam is sent to the sample through an optical lens. The 90 degree scattered light by suspended particle is collected by the probe through a second lens and it is converted in an electric signal proportional to the turbidity of the sample.
The probe uses an infrared light and the measuring is not affected by the color of the sample. They are suitable for measurement of turbidity in water quality monitoring, municipal and industrial water treatment and Aquaculture.

  • Industrial waste water treatment plant
  • Drinking water treatment plant
  • Other process water application
  • Municipal waste water treatment plant
  • Surface water application
SPECIFICATIONS

 Measurement Range0 – 4.000 NTU, 0 – 40.00 NTU, 0 – 400.0 NTU
 Measurement TechniqueNephelometric
Detector90° scattered light detector
Light SourceInfrared
Ambient Temperature Range-5 to 50 °C
Working Pressure6 bar maximum at 25 °C
Body materialPVC
Integral Sensor Cable Length10 meter
MountingIn-line or In-flow
Probe warranty1 Year

REFERENCE PART

EXT-TURBNEPH-HNephelometric turbidity probes high range
Range: 0 – 400 NTU
10 meters cable
EXT-TURBNEPH-MNephelometric turbidity probes medium range
Range: 0 – 40 NTU
10 meters cable
EXT-TURBNEPH-LNephelometric turbidity probes low range
Range: 0 – 4 NTU
10 meters cable
DOWNLOAD TURBIDITY SENSOR PROBE

Turbidity Sensor Probe

Brochure For All Probes

CHLORINE SENSOR

Tethys Chlorine Sensor is based on proven amperometric measurement technology.

Tethys Chlorine Sensor is based on proven amperometric measurement technology. It is factory calibrated and zero calibration is not required. It’s long life membrane cap is replaceable with refillable gel electrolyte. It is suitable for measurement of residual chlorine (free or total) in various Industrial water and waste water application.

 

  • Industrial waste water treatment plant
  • Municipal waste water treatment plant
  • Drinking water treatment plant
  • Surface water application
  • Other process water application

 

SPECIFICATIONS

 

 Measurement Range0-20 mg/L (or ppm)
 Measurement TechniqueMembrane-covered, three electrode amperometric technology
Accuracy± 0.1 mg/L
Repeatability± 0.05 mg/L (25 °C)
Reproducibility± 4%
Resolution0.01
Response Time90 second to 90% (T-90), 25 °C
Operating Temperature0 to 50 °C
Operating PressureMaximum 15 PSI
Sample pH4-12, greatly reduced pH interference
Flow Requirement Minimum30 L/hr (0.6 cm/s)
Flow Requirement Maximum60 L/hr (1.3 cm/s)
MaterialBody Housing: PVC, ABS
Membrane: Hydrophilic PTFE
Electrode: Silver-Silver Halide/ Gold/316SS
Temperature CompensationIn-built, Automatic
Warrantee1 Year

 

REFERENCE PART

 

CHLSETAmperometric chlorine set
Range: 0 – 20 mg/l Cl2
Built-in temperature compensation,
Includes chlorine electrode, pH electrode,
electrode holder, flow meter, mounting plate,
and 3 feet cable
 
ELCHLAmperometric chlorine electrode
ELCHL–MMembrane cap for ELCHL chlorine electrode
ELCHL–RRefillable electrolyte for ELCHL chlorine electrode
ELPHpH online electrode, general purpose
DOWNLOAD CHLORINE SENSOR PROBE

Chlorine Sensor Probe

Brochure For All Probes

CONDUCTIVITY PROBE

Tethys Conductivity Sensor with ¾”NPT thread is a heavy-duty probe with Polypropylene body suitable for many industrial water application.

Tethys Conductivity Sensor with ¾”NPT thread is a heavy-duty probe with Polypropylene body suitable for many industrial water application. Mounting thread allow for in-pipe (flow through) installations of conductivity sensor. These conductivity sensor offers excellent chemical and impact resistance.

  • Industrial waste water treatment plant
  • Drinking water treatment plant
  • Other process water application
  • Municipal waste water treatment plant
  • Surface water application
SPECIFICATIONS

Body MaterialPolypropylene 
MountingIn-Line (Flow-through) 
Temperature Range0-80 °C
Maximum operating pressure100 psi
Temperature ElementPt-100 Ohm RTD
Temperature CompensationAutomatic
Integral Sensor Cable Length6 meter
Mounting Thread on Sensor Body¾” NPT threads

REFERENCE PART

Conductivity online electrode – 6 meters cable
ELCOND-1Range: 0 – 20 mS
Cell constant k=1.0 cm-1 (medium range)
Built-in ATC RTD 100 Ohm
ELCOND-0.01Range: 0 – 200 µS
Cell constant k=0.01 cm-1 (very low range)
Built-in ATC RTD 100 Ohm
ELCOND-0.1Range: 0 – 2000 µS
Cell constant k=0.1 cm-1 (low range)
Built-in ATC RTD 100 Ohm
ELCOND-10Range: 0 – 200 mS
Cell constant k=10.0 cm-1 (high range)
Built-in ATC RTD 100 Ohm
ICONDInductive conductivity online probe
Range: 0 – 100 mS
3 meters cable
Built-in temperature compensation at 2.2%/°C

UV PROBE

Tethys UV probe Provides a simple way to measure organic matter for surface water or industrial/municipal waste water.

FOR COD BOD TOC EQUIVALENT MEASUREMENT

Tethys UV probe Provides a simple way to measure organic matter for surface water or industrial/municipal waste water. It must be calibrated for each application to gives a COD or BOD or TOC equivalent measurement depending on the sample composition. It is based on a new light source technology offering a compact and cost effective solution with a long lifetime.

SPECIFICATIONS

 Measuring RangeWith 3 mm optical path: 0-600 Abs/m (equivalent to 0-5000 mg/l COD on rough municipal waste water)
With 10 mm path: 0-200 Abs/m (equivalent to 0-100 mg/l COD on surface water)
 Optical path3 mm or 10 mm
Measurement techniqueUV light absorbance
Accuracy+/- 2% on standard solution
Response time10 sec
Turbidity compensationIntegrated by dual-beam method
Light source life time> 5 years
MountingImmersion
Probe cleaning systemAir cleaning option available
Cable length10 meters
Sensor protectionIP68
Temperature range-20˚C to 70˚C
Body materialPPS and PEEK
Wet materialsPPS, PEEK, quartz, FKM (Viton), PU
Probe warranty1 year

REFERENCE PART

UV200-HUV probe with 3 mm optical path
Range: 0-600 Abs/m (0-5000 mg/l COD on rough municipal waste water)
10 meters cable
UV200-LUV probe with 10 mm optical path
Range: 0-200 Abs/m (0-100 mg/l COD on surface water)
10 meters cable

TURBIDITY SENSOR

It is suitable for measurement of turbidity in drinking water and aquaculture as well as for the outlet of municipal or industrial water treatment plants.

Tethys turbidity sensor is based on nephelometric method (ISO 7027 – EN 27027). A light beam from a laser diode is sent to the sample through an optical lens. The 90 degree scattered light by suspended particles is collected by a photo detector and converted to an electric signal proportional to the turbidity of the sample.

The sensor uses a 650 nm red laser light or on request a 860 nm infrared laser light so that the measuring is not affected by the color of the sample (ISO7027). It is suitable for measurement of turbidity in drinking water and aquaculture as well as for the outlet of municipal or industrial water treatment plants.

A integrated bubble trap avoid the effect of bubbles on the measurement.
The sensor can be easily opened for calibration on a formazine solution. A valve at the bottom allows to empty the cylinder during calibration operations or for a manual cleaning.
The turbidity sensor must be connected to the EL200 controller for display, calibration and measurement transmission though RS232/RS485 under Modbus protocol or by analog 4-20 mA output.

SPECIFICATIONS

Measurement methodNephelometric
Measurement range0 – 100 NTU (other ranges on request)
Detection limit0.015 NTU
Repeatability+/- 0.01 NTU
Accuracy+/- 2% or +/- 0.015 NTU whichever is greater up to 20 NTU, +/- 5% above 20 NTU
Detector90ᵒ scattered light detector
Light sourcevisible laser diode (or infrared laser diode on request), lifetime > 5 years
Bubble Trapintegrated
Capacity250 ml
Inlet/outlet fittingsfor 9.6 mm external diameter plastic tubing
Ambient temperature range-5 to 60 ᵒC
Working pressure6 Bar maximum at 25 ᵒC
Body materialPOM
Wet materialPOM, PP, FKM, quartz
Sensor cable Length3 meters (to EL200 controller)
Associated controllerEL200 (to order separately)
Mountingon wall by 4 screws
Sensor warranty1 Year

REFERENCE PART

TURB200Nephelometric turbidity sensor low range
Range: 0 – 100 NTU
3 meters of cable
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