TecMicro 0-100% Oxygen Sensors

TecMicro Oxygen Sensors by TecSense are optochemical gas sensors that can measure oxygen levels from a few parts per billion to 100% O2 by volume in ambient air or in liquid depending on the model. This makes them useful for breweries, modified atmosphere packaging, testing head-space gases, bio-incubators, respirometers, algae or aquatic applications. It can even measure the oxygen level in a fish tank or a tank of gasoline. Features Measure oxygen level in gas or liquid models Measure from 0ppb to 100% oxygen (depends on model) Optical sensor not sensitive to hydrogen or CO2 Fast and accurate ATEX II approved for use in explosive atmospheres Because it is all stainless steel, the TecMicro Oxygen Sensors can be used in clean in place (CIP) and sterilize In place (SIP) applications like incubation, brewing, or in the pharmaceutical or food processing industries. The sensor can withstand high temperature, high pressure, cleaning agents and anti-bacterial compounds. The ability to measure 0% oxygen levels means that it can be used to measure dew point to determine if you have dry gas - important in welding and other metallurgy applications. Models All models listed below come with an RS485 to USB connector and 5VDC adapter so that the sensor can communicate directly with our free GasLab® software. 1/2" fine thread connector in stock. Other connectors available by request. Gas Models TS-401: Trace: 0-2,000 ppm TS-402: Low: 0-5% * TS-403: Medium: 0-22% TS-404: High Range: 0-100% Liquid Models TS-405: Trace: 0-200 ppb TS-406: Low: 0-2,000 ppb (2 mg/L) * TS-407: Medium: 0-10 mg/L * TS-408: High Range: 0-40 mg/L * TS-101: Stainless Steel 1/2" Calibration Gas Tee (works with all models). * Special Order Specifications - All Dimensions: 12mm x 60mm (½“-connector) Temperature range: -10°C-60°C  (14°F-140°F) Average LED Lifetime 10,000+ hours Data Interface: RS485 non Modbus Temperature compensation: -4°C-40°C  (39°F-104°F) Pressure compensation: STP by default. Change in software. Data Output: digital USB or RS485 non Modbus Cleaning: No organic solvents, 40% EtOH Materials touching sample: St.1.4404/PTFE/Glass Connection: ½“ stainless steel hex nut Protection: IP65 Sensor cap replacement interval: 12 months or more Recommended zero-point calibration interval: 3 months Manufacturer's recommended service interval: 3 years Specifications - Models TS-401 Trace Gas: 0-2,000 ppm Accuracy 0-100 ppm: ± 2% MEV Accuracy 100-1000 ppm: ± 3% MV Accuracy 1000-2000 ppm: ± 4% MV Resolution: 1 ppm Response Time at 25°C: <15s Max. Pressure: 5 bar Expected cap lifetime: 1 year TS-402 Low Range: 0-50,000 ppm (5%) Accuracy 0-0.5%: ± 2% MEV Accuracy 0.5-2.5%: ± 2% MV Accuracy 2.5-5%: ± 2% MV Resolution: 0.001% Response Time at 25°C: 5s w/o protective layer Max. Pressure: 5 bar Expected cap lifetime: 2 years TS-403 Standard: 0-220,000 ppm (22%) Accuracy 0-5%: ± 2% Mev Accuracy 5-15%: ± 3% Mev Accuracy 15-22%: ± 3% Mev Resolution: 0.001% Response Time at 25°C: 5s w/o protective layer Max. Pressure: 5 bar Expected cap lifetime: 2 years  TS-404 High Range: 0-100% Accuracy 0-5%: ± 3% MEV Accuracy 5-22%: ± 4% MV Accuracy 22-100%: ± 5% MV Resolution: 0.001% Response Time at 25°C: 0.5s w/o protective layer Max. Pressure: 5 bar Expected cap lifetime: 2 years  TS-405 Trace Liquid: 0-200 ppb Accuracy: 0-200ppb: ± 2% MEV Resolution: 1ppb Response Time at 25°C: <20s  Max. Pressure: 20 bar Expected cap lifetime: 1 year TS-406 Low Range: 0-2,000 ppb (0-2 mg/L) Accuracy: 0-200 ppb: ± 2% MEV Accuracy: 200-1000 ppb: ± 2% MV Accuracy: 1000-2000 ppb: ± 2% MV Resolution: 1 ppb Response Time at 25°C: <20s  Max. Pressure: 20 bar Expected cap lifetime: 1 year TS-407 Medium Range: 0-10 mg/L Accuracy: 0-2 mg/L: ± 2% MEV Accuracy: 2-8 mg/L: ± 3% MV Accuracy: 8-10 mg/L: ± 3% MV Resolution: 0.001 mb/L Response Time at 25°C: <20s Max. Pressure: 20 bar Expected cap lifetime: 2 years TS-408 High Range: 0-40 mg/L Accuracy: 0-2 mg/L: ± 3% MEV Accuracy: 2-8 mg/L: ± 4% MV Accuracy: 8-10 mg/L: ± 4% MV Accuracy: 10-40 mg/L: ± 5% MV Resolution: 0.001 mg/L Response Time at 25°C: <20s Max. Pressure: 20 bar Expected cap lifetime: 2 years - MEV = Measured end value - MV = Measured value Dissolved Liquid Cross Sensitivity While the TecMicro is monoscopic (low cross-sensitivity) to other gases, dissolved oxygen sensors can be sensitive to the following: Alcohols greater than 5% Hydrogen peroxide (H2O2) greater than 3% Sodium hypochlorite (NaClO, commercial bleach) greater than 3% Gaseous sulfur dioxide (SO2) or chlorine (CL2) If the measurements are unstable and other troubleshooting procedures do not correct the problem, there may be interfering substances present in the solution. There is no interference from the following: Carbon dioxide (CO2) Ammonia (NH3) pH, or any ionic species like sulfide (S2 -), sulfate (SO4-2), chloride (Cl-) Hydrogen sulfide (HS-) Warranty 1 year. See GasLab terms and conditions. Data Sheet (pdf) Manual (pdf) ATEXII Certificate of Conformity (pdf) Concentration of Gas in Liquid (Google Sheet) Videos Dissolved Oxygen Sensor Test The TecMicro comes with a free software utility that allows you to graph the oxygen level over time, to save your data, to calibrate the sensor, and to update the calibration when a new sensor cap is installed. TecMicro TecService Software (zip) System Requirements Windows XP SP2 or newer Microsoft .Net 3.5 Runtime Libraries