Home Items Model 714 NO2/NO/O3 Calibration Source

Model 714 NO2/NO/O3 Calibration Source

Traditional gas-phase titration (GPT) calibrator that can produce ambient concentrations of ozone, NO, and NO2 used to calibrate ambient ozone and NOx analyzers from any manufacturer.

  • Highly portable calibrator that uses small N2O cartridges instead of large cylinders of gas
  • Capable of producing NO (0-1,000 ppb), NO2 (0-500 ppb), and O3 (0-500 ppb) with traceability to NIST
  • Custom Calibration sequence of NO, NO2, and/or O3 can be programmed using either the touch-screen interface or over Ethernet
  • Lightweight (~16.6 lb, 7.5 kg), standard rack-mount size calibrator with low power consumption (~18 watt on average)
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Overview

  • This calibrator is a highly portable transfer standard for three pollutant gases without the need for a compressed cylinder of nitric oxide.
  • Has an intuitive touch-screen interface and capability for remote operation (Modbus TCP/IP)
  • Uses photolysis of oxygen in scrubbed ambient air to produce ozone
  • Uses a patented process to photolyze nitrous oxide (N2O) to form nitric oxide
  • N2O is provided by disposable 8 or 16 oz cartridges typically used for making whipped cream
  • A surplus of NO is reacted with O3 to produce calibrated concentratons of NO2 (same method of producing NO2 as traditional GPT calibrators)
  • Traceability to NIST is linked to 2B Tech’s O3 standard
  • Designed to accompany sales of our Model 405 nm NO2/NO/NOx Monitor and AQSync Air Quality Monitoring Station
  • Please see this published paper for more information about the Model 714

 

Schematic of the Model 714

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  • Calibrate for NO, NO2, or O3 using one instrument
  • Low power consumption (~18 watt on average)
  • Lightweight (~16.6Ā lb, 7.5Ā kg), standard rack-mount size
  • Convenient user interface, touch screen
  • Program up to 99 different sequences, stored in internal memory
  • A sequence can have up to 15 steps and can be repeated up to 99 times
  • Portable N2O source eliminates the need for compressed gas cylinders
  • Capability for remote operation, enabling adjustments and calibrations when not co-located with the instrumentā€‹ā€‹ (via Ethernet connection and Modbus TCP/IP)
  • Model 714 NO2/NO/O3 Calibration Source
  • 5A power adapter
  • N2O regulator assembly for using 8 or 16 oz cartridges
  • Model 714 dryer assembly
  • External overflow scrubber
  • Three feet of Teflon-lined tygon (1/4ā€³ OD, 1/8ā€³ ID) tubing for connecting to an ozone or NOx analyzer
  • USB flash driver preloaded with operation manual and other useful documentation
  • NIST-traceable calibration certificate
  • Downloadable software tool for remote operation
  • Side panels for easy mounting of calibrator into instrument rack (available upon request)
  • Configurable to work with large NO cylinder in-place of small N2O cartridges
  • Electronic System for Citizensā€™ Air Quality Mapping, S. Palomeque-Mangut, F. MelĆ©ndez, J. GĆ³mez-SuĆ”rez, P. Arroyo, J.-I. SuĆ”rez, S. Frutos-Puerto and J. Lozano,Ā IEEE SensorsĀ (2021), proceedings of conference held 31 Oct-3 Nov 2021, pp. 1-4, doi: 10.1109/SENSORS47087.2021.9639578.Ā Ā IEEELink
  • MicroRNA Alterations Induced in Human Skin by Diesel Fumes, Ozone, and UV Radiation, G. Valacchi, E. Pambianchi, S. Coco, A. Pulliero and A. Izzotti,Ā Journal of Personalized MedicineĀ (2022)Ā 12, 176.Ā Ā MDPI Link
  • Portable Instrumental Odour Monitoring System for Air Quality Monitoring by Citizens in Outdoor Environments, S. Palomeque-Mangut, F. MelĆ©ndez, J. GĆ³mez-SuĆ”rez, P. Arroyo, J.P. Santos and J. Lozano,Ā Chemical Engineering TransactionsĀ (2022)Ā 95, 49-54, 10.3303/CET2295009.Ā Ā CET Link
  • Wearable System for Outdoor Air Quality Monitoring in a WSN with Cloud Computing: Design, Validation and Deployment, S. Palomeque-Mangut, F. MelĆ©ndez, J. GĆ³mez-SuĆ”rez, S. Frutos-Puerto, P. Arroyo, E. Pinilla-Gil and J. Lozano,Ā ChemosphereĀ (2022)Ā 307, 3, 135948.Ā ScienceDirect
  • Kerbside NOx and CO Concentrations and Emission Factors of Vehicles on a Busy Road, M. Chu, P. Brimblecombe, P. Wei, C.-H. Liu, X. Du, Y. Sun, Y.S. Yam and Z. Ning,Ā Atmospheric EnvironmentĀ (2022)Ā 271, 118878.Ā ScienceDirect

Specifications

Spec Sheet
Method of NO Production UV photolysis of Nitrous Oxide (N2O) at 185 nm
Method of O3 Production UV photolysis of Oxygen (O2) at 185 nm
Method of NO2 Production Reaction of O3 with excess NO (gas-phase titration, GPT)
NO2 Concentration Range 0-500 parts per billion by volume (ppb)
O3 Concentration Range 0-500 ppb
NO Concentration Range 0-1000 ppb
Output Flow Rate ~2.0 to 2.7 L/min (2.5-2.7 L/min typical)
Precision and Accuracy Greater of 2.0 ppb or 2.0% of NO or O3 concentration
Response Time for Change in Calibrant Gas Output Concentration < 30 s to reach 95% of selected concentration
Input and Output Touch Screen LCD Display
Dimensions Rackmount: 17″ w x 14.5″ d x 5.5″ h (43 x 37 x 14 cm)
Weight ~16.6 lb (7.53 kg)
Power Requirements 120/240 V AC with 5-amp power pack, or 12 V DC
Run, O3 Channel: 0.91-2.79 A at 12 V, 11-34 watt
Run, NO Channel: 1.16-3.10 A at 12 V, 14-38 watt
Warmup Max: 3.38 A at 12 V, 40.6 watt (warmup)
Programmable Calibrated Gas Output Yes, up to 99 different repeatable sequences may be specified by the user for NO, NO2, or O3 output, with up to 15 steps for each sequence from 0 to 500 ppb for O3 and NO2 (1000 ppb for NO); stored in internal memory
Remote Operation Capability Yes, Modbus TCP/IP via Ethernet and 2B Tech software tool
Transportation and Temperature Storage Ranges -20Ā°C to 60Ā°C

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Instructions

Please use the following web form to open a service ticket for calibration and/or repairs on your instrument, and be sure to provide its serial number.

If you are experiencing problems with your instrument, it will greatly aid our troubleshooting efforts if you would:

  • Use the serial connection of the instrument to capture sample data,
  • Save the (raw, unmodified) data in a text file,
  • Upload the file as an attachment and submit it with your service ticket.
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