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Continuous Monitor for VOC's, Inorganic & Fixed Gases

• The Model 201B is a continuous VOC Analyzer designed for continuous or process control. It has optional 4-20 mA output, RS485, MODBUS, 2-4 programmable setpoints, larger pump, bypass flow & and a 19" rack or industrial wall mount NEMA 4 enclosure.
• This 201B has the choice of one 9.5 or 10.6 eV lamp in a PID or an FID, Operator's Manual, configuration software and RS232 cable.
• The detectors are the PID or FID

Specifications

• Species measured: Organics (VOCs by PID or FID) and inorganic species that can be ionized by the PID lamp (9.5, 10.6 or 11.7 eV)
• Sensor(s): Sensor(s): single- PID only or FID only
• Precision: +/- 1-2% of reading
• Response time: <2 sec. (PID) < 10s FID (to 90%) response
• Sample flow rate: > 1 LPM
• Span Drift: <2% over 24 hours
• Range: 0.1 to 6,000 ppm (optional ppb range)- PID 1 to 40,000 ppm FID
• Linear Range: See above
• Power consumption: < 50 watts maximum; 115 VAC, 0.4 amps
• Dimensions: 19'' Rack mount -19'' W x 5 ^1/4''H x 14''D
• Wall -2''W x 21''H x 10''D
• Weight: 19'' Rack mount -12.2 pounds PID; 14 pounds FID
• Wall -19 pounds PID; 22 pounds FID
• Instrument operating conditions: 5-40 degrees C, 0-95% RH (non-condensing)
• Performance: Isobutylene Referred

Features

• PID Lamps Our 9.5 and 10.6 eV lamps remain the best in the business since we developed them over 30 years ago.
• FID Our very sensitive FID has flame out sensor that will shut off the hydrogen if the flame goes out
• Enclosures 19'' rack mount or NEMA 4 wall mount
• Ease of calibration- SemiAutomatic or Remote Automatic The two point calibration for the PID uses an electronic zero (no zero gas needed) and a span gas. It is initiated by a push button switch. The time to calibrate is about 1 minute. The FID requires zero air and span gas for calibration. In the 201, the valving is built into the Analyzer. The remote calibration can be activated by a PLC controlled contact closure.
• Display Our 2 line by 16 character LED display is easy to read. The lower display is used for diagnostics
• ADC 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
• Programmable Voltage/current output 0-1VDC/4-20 mA
• Digital outputs RS485, MODBUS
• Programmable setpoints The 1-3 setpoints (depends on the options) can be programmed for PID control, above/below setpoints…

About PID Analyzers:

PID Analyzers develops sensors & analyzers for air, water and process applications and sells these products worldwide. The sensor technologies include photoionization, infrared, electrochemistry, catalytic combustion, flame ionization, capacitance, thermal conductivity, process gas chromatography... Many of our analyzers are multifunctional and include multiple technologies. The parameters measured include: VOCs, O₂, H2O, fixed gases, SO₂, NO₂, NO, CO₂, formaldehyde... at ppb to % levels.

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