Baseline-MOCON’s new piD-TECH® plus photoionization sensor series offers compact size, superior VOC analysis


Source: AMETEK MOCON - Baseline

Lyons, CO  — Baseline-MOCON, Inc., a subsidiary of MOCON (NASDAQ: MOCO) launches two new patented piD-TECH® plus photoionization sensors for portable and stationary gas monitors. 

The new generation sensors are ideal for instrumentation manufacturers who want to add state-of-the art, low-level volatile organic compound (VOC) detection to their portable or stationary monitor.  The piD-TECH® plus sets a new standard by being able to measure concentrations lower than previously possible with other comparably-sized sensors.

The units offer a broader dynamic range and are the least sensitive to humidity vs. other piD sensors. (Humidity interferes with accurate gas measurement.) This delivery of superior accuracy has been achieved via the addition of a dual-layer ionization detector cell with a grounding plane in the middle.  Improvements in the gold cell production process also results in a more robust offering with better cell surface characteristics.

The piD-TECH® plus Black Label has a linear dynamic range of 0.1 ppm to 2,000 ppm.  The piD-TECH® plus Silver Label has a linear dynamic range of <0.01 ppm to 20 ppm. 

Both of the new sensors have passed Underwriter’s Laboratories “certified component” requirements.  This reduces the steps manufacturers have to take to obtain an “intrinsically-safe” certification rating for instruments containing the piD-Tech® plus.  When Baseline-MOCON engineered the new series, its goal was to achieve electrical entity parameters (voltage, current, capacitance, etc.) that would allow operation in a hazardous environment.   

Additional upgrades include a compact design which makes it easier than ever before to integrate this type of gas-measuring sensor into multi-use, portable instruments.  The sensor has been designed with an industry-standard footprint and power requirements. The piD-TECH® plus also features a cap locking feature so that the gas entry port will always be aligned in the proper position for easier service.

The series is based on a photoionization detector (PID).  The sample gas is exposed to an ultraviolet lamp.  The ≤10.6 eV light emitted by the lamp ionizes and excites the targeted gases in the sample so they can be detected by the instrument and reported as a concentration.  Chemicals such as VOCs with an ionization potential  ≤10.6 eV will be detected by photoionization.

Ideal applications are gas analyzers which target industrial hygiene and safety monitoring; soil contamination and remediation; HAZMAT sites and spills; low-concentration leak detection; EPA Method 21 and emissions monitoring and arson investigations.

Baseline-MOCON, Inc., first established in 1969 as Baseline Industries Incorporated, was acquired by MOCON in 2001.  Baseline-MOCON is known as an industry leader in the development and manufacture of gas analyzers.  The company’s analyzers employ several principals of gas analysis and detection technology, including gas chromatography and continuous monitors based on flame ionization and photoionization detectors.

The product line also includes a variety of complimentary products such as multipoint samplers, calibration systems, sample conditioners, support gas generators, and data acquisition systems.   Designed for optimum reliability, compactness and operational simplicity, Baseline products meet the growing demand for environmental, industrial hygiene and safety, mud logging during oil and gas exploration, and industrial gas analysis

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