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Model 108-L Ozone Monitor

The Model 108-L Ozone Monitor is a versatile EPA-certified Federal Equivalent Method (FEM) for monitoring ambient ozone. The instrument is designed for easy integration into existing ozone or air monitoring systems. With an incredibly small footprint, the Model 108-L is a unique instrument with its ability to provide highly reliable ozone data at a size that makes it easy to incorporate into an existing product.

  • Measurement range of 0-100 ppm with an accuracy/precision of 1.5 ppb
  • EPA-certified as a FEM for regulatory compliance monitoring in accordance with the Clean Air Act (EQOA-0914-218)
  • Available in three user-friendly configurations to meet a variety of ozone monitoring needs

Overview

  • Provides accurate measurements of ozone from a few parts-per-billion by volume (ppb) to an upper limit of 100 parts-per-million (ppm) based on UV absorption
  • Standard OEM configuration makes use of the user’s ozone system pump to supply the air sample
  • Lightweight (2.0 lb, 0.89 kg) and has a low power consumption (~2 watt) relative to conventional instruments
  • Requires minimal maintenance, making it well suited for monitoring of ambient ozone and monitoring/control of ozone in industrial settings
  • Available in configurations including Enclosure with Pump and our AQLite Air Monitoring Package
  • Please contact us to discuss the best configuration for your application

Product Enclosures

Standard OEM

Suitable for either mounting in a custom enclosure or using as a component of a larger system.
 

  • Dimensions (Height x Width x Depth):  8.7 × 4.0 × 3.0 in (22 × 10 × 7.6 cm)     
  • Weight: 2.0 lb (0.89 kg)
  • Power Requirements: 11-28 VDC, nominally 165 mA at 12 V; 2.0 watt
  • Relay: one 2-Level
  • Federal Equivalent Method (FEM)
  • DewLine™ for Humidity Control
  • Robust and easy to service

108-L AQLite Package

Water-resistant enclosure suitable for workplace health and safety monitoring where ozone is being produced and used in a wide range of applications (below).
 

  • Dimensions:
    16″ H x 14″ W x 9.3″ D
    (40.7 x 35.7 x 23.6 cm)
  • Weight: Approx. 14 lb / 6.3 kg
    (depends on multi-channel options)
  • Power Requirements: 11-28 VDC, nominally 165 mA at 12 V; 2.0 watt
  • Relay: one 2-Level
  • Federal Equivalent Method (FEM)
  • DewLine™ for Humidity Control
  • Robust and easy to service

Enclosure with Pump

Suitable for either mounting in a custom enclosure or using as a component of a larger system.
 

  • Includes miniature air pump
  • Dimensions (Height x Width x Depth):  2.5 x 7 x 9 inches / 6.2 x 17.8 x 22.9 cm
  • Weight: 2.8 lb / 1.3 kg
  • Power Requirements: 11-28 VDC, nominally 165 mA at 12 V; 2.0 watt
  • Relay: one 2-Level
  • Federal Equivalent Method (FEM)
  • DewLine™ for Humidity Control
  • Robust and easy to service
  • Accurate ozone measurements based on UV absorption
  • Low power consumption (≈2.0 watt)
  • Small footprint designed for easy integration into ozone systems
  • 4-s response time (2s measurement interval)
  • Relay with 2 set points (based on user’s ozone set points)
  • 02.5 V, 420 mA analog outputs
  • RS232 Output
  • Bluetooth upgrade available
  • WiFi data access available
  • Higher measurement ranges are offered in other instruments in our Model 108 Series Ozone Monitors
    • Please inquire about our Model 108-M (20 ppb – 1000 ppm), Model 108-MH (100ppb – 10,000 ppm), or Model 108-H (0.02 wt% – 20wt%)
  • Model 108-L Ozone Monitor with 3-pin relay connector attached
  • 1.25A power adapter
  • Terminal strip connector (10-pin) wired with serial port connector (9PinM) and power jack (barrel)
  • Serial cable (9PinF-9PinF)
  • External ozone scrubber
  • USB flash drive preloaded with operation manual and other useful documentation
  • NIST-traceable calibration certificate
  • Integration into air quality monitoring systems to provide an accurate and reliable measurment of ambient ozone
  • Replacement of HMOS and Electrochemical sensors in an existing ozone system
  • Monitoring ozone exposure of individuals in the workplace
  • Monitoring and control of ozone in industrial settings
  • Incorporation into ozone disinfection systems
  • Long-term monitoring at remote locations where power is highly limited

Specifications

Spec Sheet
Measurement Principle UV Absorption at 254 nm, single beam
Federal Equivalent Method (FEM) Yes, modification to EQOA-0914-218
Linear Dynamic Range 0-100,000 ppb (0-100 ppm)
Resolution 0.1 ppb
Precision (1σ for 10-s average; aka rms noise) Greater of 1.5 ppb or 2% of Reading
Limit of Detection (10-s average, 2σ) 3.0 ppb
Accuracy Greater of 1.5 ppb or 2% of Reading
Calibration NIST Traceable; Annual calibration recommended
Measurement Time, Frequency 2 s, 0.5 Hz
Data Averaging Options 10 s, 1 min, 5 min, 1 hr
Response Time, 100% of Step Change For 2-s output: 4 s, 2 data points
For 10-s output: 20 s, 2 data points
Adaptive Filter Available, user-specified parameters
Data Transfer Baud Rate 2400
Ozone Units ppb, pphm, ppm, µg m-3, mg m-3
Temperature Units oC, oF, K
Pressure Units mbar, torr, psi
T and P Corrected Yes
DewLine™ for Humidity Control Yes
Operating Temperature Range 0 to 50oC (0 to 40oC for FEM)
Flow Rate Minimum required: 0.6 L/min; Nominal: 1 L/min; Maximum: 1.5 L/min
Data Outputs RS232; 0-2.5 V, 4-20 mA
Power Requirements 11-28 V DC, nominally 165 mA at 12 V DC, 2 watt
Relay with 2 Setpoints Yes, responds based on user’s ozone set points
Size 8.7 x 4.0 x 3.0 inches (22 x 10 x 7.6 cm)
Weight 2.0 lb (0.89 kg)
Options Pump, Enclosure, Bluetooth, WiFi, AQLite packages

Support

Call Us

+1 (303) 273-0559

Case Studies

In Atlanta, Georgia, the AQEarth team includes Community Health Aligning Revitalization Resilience & Sustainability (CHARRS) and West Atlanta Watershed Alliance (WAWA) in a project consisting of both air monitoring and community education. The collective aim is to bring community members together around air quality issues in West Atlanta neighborhoods. 2B Tech’s AQSync was installed to make high-quality measurements of pollutants that are accessible to residents online. Residents of all ages are exploring local air quality in neighborhoods using handheld personal air monitors (PAMs).

The Model 108-L has been integrated into the STERISAFE PRO system, which uses fumigations with high amounts of gas-phase ozone to disinfect surfaces and destroy viruses and bacteria. The integrated relay and the wide measurement range of the Model 108-L (0-100 ppm) make it possible for one instrument to serve two purposes critical to the disinfection process: monitoring the high ozone concentrations needed to ensure disinfection, and also monitoring low ozone concentrations to determine when safe levels are re-established at the end of fumigation.

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