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 Range | 0-14 pH | |
| Response Time | 5 seconds to 95% of full response | |
| pH Sensor Type | Convertible style combination pH sensor | |
| Body Material | Ryton | |
| Reference | Double Junction with porous Teflon | |
| Mounting | Immersion or In-Line | |
| Temperature Range | 0-80 °C | |
| Maximum Operating Pressure | 100 psi | |
| Temperature Element | Pt-100 Ohm RTD | |
| Temperature Compensation | Automatic | |
| Integral Sensor Cable Length | 6 meter | |
| Mounting Thread on Sensor Body | ¾” NPT threads, front & back |
REFERENCE PART
| ELPH | pH online electrode, general purpose Range: 0-14 6 meters of cable length Built-in ATC RTD 100 ohm |
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 Drawing | pH Range | 0-14 pH |
 | pH Sensor Type | Differential pH sensor |
| Body Material | Ryton @PPS body | |
| pH stability (per 24 hour) | 0.03 pH | |
| Mounting | Immersion or In-Line | |
| Temperature Range | 0-85 °C | |
| Temperature Element | 10K NTC | |
| Temperature Compensation | Automatic | |
| Maximum Pressure | 100 psi | |
| Integral Sensor Cable Length | 6 meter | |
| Mounting Thread on Sensor Body | 1 ½” NPT threads, front & back |
REFERENCE PART
| ELPH-D | pH online electrode, differential sensor Range: 0-14 6 meters of cable length Built-in ATC RTD 100 ohm |
| ELPH-D-S | Replacement salt bridge for differential pH Sensor |
| ELPH-D-R | Refill solution for standard cell, 125 mL |
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 Type | Convertible style combination ORP sensor | |
| Body Material | Ryton | |
| Sensing element | Platinum | |
| Reference | Double Junction with porous Teflon | |
| Mounting | Immersion or In-Line | |
| Operating temperature Range | 0-80 °C | |
| Maximum operating pressure | 100 psi | |
| Integral Sensor Cable Length | 6 meter | |
| Mounting Thread on Sensor Body | ¾” NPT threads, front & back |
REFERENCE PART
| ELORP | ORP 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 DO | 0-20 mg/L | |
| Working Temperature Range | -5 to 50 °C | |
| Measurement Technique | Luminescent Optical Technology | |
| Accuracy DO | ± 0.1 mg/L | |
| Accuracy Temperature | ± 0.2 °C | |
| Response Time | 40 second to 90% (T-90) | |
| Body Material | Stainless Steel 316 body | |
| Sensor Protection | IP-68 | |
| Maximum operating pressure | 100 psi | |
| Maximum operating temperature | 80 °C | |
| Temperature Compensation | In-built, Automatic | |
| Integral Sensor Cable Length | 10 meter | |
| Mounting | Immersion or In-Line | |
| Mounting Thread on Sensor Body | 1” NPT threads, front & back | |
| Sensor Cap | Replaceable, Pre-calibrated | |
| Expected Sensor Cap Life | 2 Year | |
| Probe Warrantee | 1 Year |
REFERENCE PART
| DO-F | Dissolved oxygen probe by fluorescence Range: 0-25 mg/l O2 10 meters of cable length |
| DO-F-S | Replacement Sensor cap with matched microSD card |
| DO-F-C | Replacement 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 Range | 0-25 mg/L | |
| Working Temperature Range | 0 to 60 °C | |
| Measurement Technique | Fluorescence Optical Technology | |
| Accuracy | 1% of reading or 0.05 ppm, whichever is greater | |
| Response Time | 60 second to 90% (T-90) | |
| Wetted Material | Epoxy, polyurethane and PVC | |
| Sensor Drift | Less than 2% per year | |
| Repeatability | 0.02 ppm | |
| Stability (per 24 hour period) | 0.02 ppm | |
| Maximum Pressure | 100 PSI | |
| Temperature Compensation | In-built, Automatic | |
| Integral Sensor Cable Length | 10 meters | |
| Sensor Cleaning System | air or water wash option available | |
| Mounting | Submersible | |
| Mounting Thread on Sensor Body | 1-1/2” NPT | |
| Probe Warrantee | 1 Year |
REFERENCE PART
| DO-F-AC | Dissolved oxygen probe by fluorescence with automatic cleaning Range: 0-25 mg/l O2 10 meters of cable length |
DOWNLOAD DISSOLVED OXYGEN PROBE AUTO CLEANING
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 Range | 0-1500 mg/L | |
| Measurement High Range | 250 – 30,000 mg/L | |
| Accuracy Low Range Sensor | 5% of reading or 5 mg/l whichever is higher | |
| Accuracy High Range Sensor | 5% of reading or 50 mg/l whichever is higher | |
| Stability | 2% of reading | |
| Repeatability | 2% of reading | |
| Working Temperature Range | 0 to 60 °C | |
| Measurement Technique | IR light absorption | |
| Response Time | 60 second to 90% (T-90) | |
| Wetted Material | Epoxy, polyurethane and PVC | |
| Sensor Drift | Less than 1% per year | |
| Integral Sensor Cable Length | 10 meter | |
| Sensor Cleaning System | air or water wash option available | |
| Maximum Pressure | 100 psi | |
| Mounting | Submersible | |
| Mounting Thread on Sensor Body | 1-1/2” NPT | |
| Probe Warrantee | 1 Year |
REFERENCE PART
| EXT-TURB-H | Total suspended solid (TSS) probes high range High range: 0 – 30,000 mg/l TSS 10 meters cable |
| EXT-TURB-L | Total suspended solid (TSS) probes low range Low range: 0 – 1500 mg/l TSS 10 meters cable |
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 Range | 0 – 4.000 NTU, 0 – 40.00 NTU, 0 – 400.0 NTU | |
| Measurement Technique | Nephelometric | |
| Detector | 90° scattered light detector | |
| Light Source | Infrared | |
| Ambient Temperature Range | -5 to 50 °C | |
| Working Pressure | 6 bar maximum at 25 °C | |
| Body material | PVC | |
| Integral Sensor Cable Length | 10 meter | |
| Mounting | In-line or In-flow | |
| Probe warranty | 1 Year |
REFERENCE PART
| EXT-TURBNEPH-H | Nephelometric turbidity probes high range Range: 0 – 400 NTU 10 meters cable |
| EXT-TURBNEPH-M | Nephelometric turbidity probes medium range Range: 0 – 40 NTU 10 meters cable |
| EXT-TURBNEPH-L | Nephelometric turbidity probes low range Range: 0 – 4 NTU 10 meters cable |
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 Range | 0-20 mg/L (or ppm) | |
| Measurement Technique | Membrane-covered, three electrode amperometric technology | |
| Accuracy | ± 0.1 mg/L | |
| Repeatability | ± 0.05 mg/L (25 °C) | |
| Reproducibility | ± 4% | |
| Resolution | 0.01 | |
| Response Time | 90 second to 90% (T-90), 25 °C | |
| Operating Temperature | 0 to 50 °C | |
| Operating Pressure | Maximum 15 PSI | |
| Sample pH | 4-12, greatly reduced pH interference | |
| Flow Requirement Minimum | 30 L/hr (0.6 cm/s) | |
| Flow Requirement Maximum | 60 L/hr (1.3 cm/s) | |
| Material | Body Housing: PVC, ABS Membrane: Hydrophilic PTFE Electrode: Silver-Silver Halide/ Gold/316SS | |
| Temperature Compensation | In-built, Automatic | |
| Warrantee | 1 Year |
REFERENCE PART
| CHLSET | Amperometric 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 | |
| ELCHL | Amperometric chlorine electrode | |
| ELCHL–M | Membrane cap for ELCHL chlorine electrode | |
| ELCHL–R | Refillable electrolyte for ELCHL chlorine electrode | |
| ELPH | pH online electrode, general purpose |
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 Material | Polypropylene | |
| Mounting | In-Line (Flow-through) | |
| Temperature Range | 0-80 °C | |
| Maximum operating pressure | 100 psi | |
| Temperature Element | Pt-100 Ohm RTD | |
| Temperature Compensation | Automatic | |
| Integral Sensor Cable Length | 6 meter | |
| Mounting Thread on Sensor Body | ¾” NPT threads |
REFERENCE PART
| Conductivity online electrode – 6 meters cable | |
| ELCOND-1 | Range: 0 – 20 mS Cell constant k=1.0 cm-1 (medium range) Built-in ATC RTD 100 Ohm |
| ELCOND-0.01 | Range: 0 – 200 µS Cell constant k=0.01 cm-1 (very low range) Built-in ATC RTD 100 Ohm |
| ELCOND-0.1 | Range: 0 – 2000 µS Cell constant k=0.1 cm-1 (low range) Built-in ATC RTD 100 Ohm |
| ELCOND-10 | Range: 0 – 200 mS Cell constant k=10.0 cm-1 (high range) Built-in ATC RTD 100 Ohm |
| ICOND | Inductive 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 Range | With 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 path | 3 mm or 10 mm | |
| Measurement technique | UV light absorbance | |
| Accuracy | +/- 2% on standard solution | |
| Response time | 10 sec | |
| Turbidity compensation | Integrated by dual-beam method | |
| Light source life time | > 5 years | |
| Mounting | Immersion | |
| Probe cleaning system | Air cleaning option available | |
| Cable length | 10 meters | |
| Sensor protection | IP68 | |
| Temperature range | -20˚C to 70˚C | |
| Body material | PPS and PEEK | |
| Wet materials | PPS, PEEK, quartz, FKM (Viton), PU | |
| Probe warranty | 1 year |
REFERENCE PART
| UV200-H | UV 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-L | UV 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 method | Nephelometric |
| Measurement range | 0 – 100 NTU (other ranges on request) |
| Detection limit | 0.015 NTU |
| Repeatability | +/- 0.01 NTU |
| Accuracy | +/- 2% or +/- 0.015 NTU whichever is greater up to 20 NTU, +/- 5% above 20 NTU |
| Detector | 90ᵒ scattered light detector |
| Light source | visible laser diode (or infrared laser diode on request), lifetime > 5 years |
| Bubble Trap | integrated |
| Capacity | 250 ml |
| Inlet/outlet fittings | for 9.6 mm external diameter plastic tubing |
| Ambient temperature range | -5 to 60 ᵒC |
| Working pressure | 6 Bar maximum at 25 ᵒC |
| Body material | POM |
| Wet material | POM, PP, FKM, quartz |
| Sensor cable Length | 3 meters (to EL200 controller) |
| Associated controller | EL200 (to order separately) |
| Mounting | on wall by 4 screws |
| Sensor warranty | 1 Year |
REFERENCE PART
| TURB200 | Nephelometric turbidity sensor low range Range: 0 – 100 NTU 3 meters of cable |
