PID Analyzers, LLC
2 Washington Circle, Unit 4 , Sandwich, Massachusetts, United States

PID Analyzers, LLC was formed in April 2003 to acquire the assets of HNU Systems. Inc. (developer of the first commercial photoionization instrumentation). More than 40,000 systems had been sold worldwide between 1973-2003. We still service many of the older instruments such as the PI101, DL101, IS101, PI51, PI51…

Our first goal was to develop multifunctional microprocessor based electronics that could be used with virtually any sensor technology for monitoring chemicals. This would be used to expand HNU’s pioneering photoionization technology that was acquired. A second goal was to develop new and/or improved sensors that could be incorporated into our analyzers. We have achieved these goals with the introduction of the Model 102+. The amp board in this analyzer has 5 amplifiers in a compact board. These can be used to process high impedence voltage (microvolts) or currrent (nanoamps), a Wheatstone bridge for combustible gas, capacitance, thermal conductivity, or infrared (microbolometer) sensors, and electrochemical sensors (fuel cell, unbiased and biased).

PID Analyzers develops sensors and systems for air, water and process monitoring using technologies such as : photoionization, flame ionization, thermal conductivity, flame photometry, infrared & UV absorption, electrochemistry, capacitance, gas chromatography

Our design expertise is the following areas:

• Sensors
• GC Detectors
• Spectroscopy
• Gas Chromatography
• Software for systems (C++)- gas chromatographs
• Software for controllers (microprocessors) and PLC’s

All of our analyzers have proprietary software (operating systems) from the microcontrollers in the Model 102 to the 32 bit C++ software in our embedded software for the Model 301C (PeakWorks™) that runs on Windows XP.

We have worked with the US Navy since 1982 to provide portable VOC Analyzers (HNU Model 101, spare parts and service. Now we provide the PID Model 102 VOC Analyzers to the Navy Undersea Systems for all submarines in the US fleet. Our Model 102 has been third party tested and is listed on the National Work Group on Leak detection Evaluations.

HNU Service

PID Analyzers, LLC, provides service as well as customer support for hnu, hnu systems, Process Analyzers and PID Analyzers' instruments. If you have service questions, need to calibrate your PIDs, GCs, or get annual maintenance and service contracts you may contact us via E-mail or telephone.
For customers requiring 101/102 service please email: service@hnu.com and we will return your request as soon as possible. Please familiarize yourself with our service links below. Whether you have questions about troubleshooting your 101, calibration with an alternate gas, or return authorization, these links should help you find your answer.
If you are sending in your unit for cleaning and calibration, please look at our RA Checklist to make sure that you include all components needed to diagnose and repair your instruments. If you have any questions regarding packaging and shipping address you will find this information there. Likewise, you may fill out our online return authorization form for fastest service.
When we recieve your instrument, we will fax to you a repair estimate. No work will be performed until this repair estimate has been approved by you. If the repair estimate is declined we will charge a one time evaluation fee of $95.
For information regarding service for your HNU, contact the service department at service@hnu.com.
Manuals
Manuals for PID Analyzers, LLC, are available for all of our instruments for purchase for $50. Please email us at sales@hnu.com if you wish to purchase a manual for our instruments.
We provide at no charge out quickstart manuals for the Model PI, DL, and ISPI 101. These should familiarize yourself with the operation of our 101s. For a comphrensive manual, you will need to purchase the manual from us.