PID Analyzer's portable analyzers now have wireless capability through Bluetooth. A sending unit is embedded into the analyzer and the receiving unit is plugged into a PC via the RS232 port. The free logging software that comes with our portables has multichannel (up to 5) logging and is used to collect the data. The data is graphed and can be saved in comma delimited ASCII format and imported directly into EXCEL. A typical graph of ppb VOC (blue) and ppm CO2 (red) is shown in the graph below:
The graph displays the effect of rain on VOC's (upper) and CO2 (lower) in the outside air for the Model 102+. The Model 102+ was upstairs and the PC was downstairs about 150' away. Another option for wireless on the portables is also available now. This uses a Mica 2 mote from Crossbow and is available an as option. The advantage of the Crossbow includes a longer range (different frequencies) and additional sensor capability such as geographic position sensor (GPS) through an eight channel ADC. Contact PID Analyzers for additional information. A Paper on a Model 102 with wireless and GPS is available here.
Monday, May 30, 2011
Thursday, May 12, 2011
PID Analyzers has designed an inexpensive 2, 3 or 4 point sequencer (MP) that can used with the Model 201B to monitor both the inlet and outlets of VOC removal devices such as thermal oxidizers, scrubbers or carbon beds. . The 201 MP can also be used to monitor 2-4 points in a process or different areas in a room or plant. Photoionization (PID) or Flame ionization (FID) Analyzers (Model 201B) equipped via a 2-4 point sequencer can provide rapid measurement of the removal efficiency of the pollution control device thereby. eliminating the need for two separate analyzers. No need for a large instrument shelter for this analyzer since an optional Vortex cooler is available that enables the 201 to operate from -35F to 135F. The Analyzers & MP are housed in a NEMA 4 enclosure that can be Z purged (optional) to meet Class1 Div 2 requirements. Available outputs include analog: 0-10VDC, 4-20 mA, Digital: RS232, RS485, MODBUS and Wireless: Bluetooth. Easy to interface with Process Control Computer or PLC.