Model 112 Fixed System PID

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  • The Model 112 is a low cost continuous VOC Analyzer. It has an optional 4-20 mA output, a single programmable setpoint, larger pump & an industrial NEMA 4 enclosure.
  • This 112 the choice of one 9.5 or 10.6 eV lamp, Operator's Manual, configuration software and RS232 cable.
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Species measured: Sensor(s): Precision: Response time:
Organics (VOCs) and inorganic species that can be ionized by the UV lamp (9.5 or 10.6) Sensor(s): single- PID only or FID only +/- 1-2% of reading <2 sec. (PID) < 10s FID (to 90%) response
Sample flow rate: Span Drift: Range: Linear Range:
> 0.2 LPM <2% over 24 hours 0.1 to 4,000 ppm (optional ppb range) - PID
1 to 20,000 ppm - FID
See above
Power consumption: Power: Dimensions: Weight:
< 1 watt maximum 90-220 VAC or 24 VDC 6.75'' W x103/8''H x 63/4''D 7.4 pounds
Instrument operating conditions: Performance:
5-40 degrees C, 0-95% RH (non-condensing) Isobutylene Referred


PID Lamps FID Single piece construction Ease of calibration
Our 9.5 and 10.6 eV lamps remain the best in the business since we developed them over 30 years ago. Our compact FID is one of the most sensitive available. The single piece construction NEMA 4 enclosure constructed of fiberglass is waterproof, very rugged and durable. The two point calibration for the PID uses an electronic zero (no zero gas needed) and a span gas. The time to calibrate is about 10 seconds. The Cal button is located on the main menu for ease of use. The FID requires zero air and span gas for calibration.
Library Display ADC Programmable Voltage/current output
There are libraries for the 9.5 and 10.6 lamps that are easily accessible. There are more than 300 response factors built into the 112. Response factors are also built into the FID library. Our 2 line by 16 character display is backlit. The upper display provides the concentration and the bottom display provides the lamp eV, FID, units, alarm and logging mode. Our 16 bit ADC provides a resolution of 1 part in 64,000 and our signal algorithm minimizes noise by signal averaging in the msec range. 0-1VDC/4-20 mA
Programmable Voltage output

Want more information? Learn more by reading our brochure! Open PDF File | Download PDF | Back to Continuous