Airyx OPC‑UV3‑DL‑301 Open Path Ammonia Analyzer
Contact‑free NH₃ monitoring over 20–150 m open paths.
Description
The Airyx OPC‑UV3‑DL‑301 is an open path ammonia analyzer for contact‑free NH₃ monitoring. It measures along a free air beam over distances from 20 to 150 meters. As a result, it avoids sampling line losses and provides stable, path‑averaged concentration data.
Multi‑Path Operation
In addition, the system supports multi‑path operation. A motorized telescope head can redirect the beam between different retroreflectors. This enables spatially resolved ammonia measurements for agriculture, fence‑line monitoring and environmental air‑quality studies.
Furthermore, remote alignment shortens setup time. Consequently, operators can perform field tasks more efficiently. Therefore, the OPC‑UV3‑DL‑301 delivers reliable performance in real‑world conditions.
UV DOAS Technology
The OPC‑UV3‑DL‑301 uses UV DOAS with a stable deuterium lamp. In addition, the temperature‑stabilized spectrometer ensures long‑term stability. As a long‑path DOAS instrument, it eliminates sampling lines and minimizes NH₃ surface losses.
Key Features
Accurate gas detection
The OPC‑UV3‑DL‑301 measures NH₃, NO and SO₂ using UV DOAS. In addition, the open‑path design avoids sampling artefacts and ensures representative concentration data.
Compact and flexible operation
One analyzer can monitor several measurement paths through motorized beam routing. As a result, the system adapts well to different field setups and test layouts.
Rugged and mobile
The IP64 enclosure includes heating and dew‑point monitoring. Consequently, the analyzer performs reliably in challenging outdoor environments.
Fast and simple deployment
Motorized self‑alignment enables quick setup. Furthermore, only minimal on‑site adjustments are required.
Calibration‑free technology
UV DOAS does not require calibration gas bottles and shows no long‑term drift. Therefore, operational cost and maintenance remain low.
Applications
The OPC‑UV3‑DL‑301 open path ammonia analyzer supports a wide range of real‑world applications. In many cases, it improves measurement quality and reduces installation effort. For example, it is used in the following areas:
- Air‑quality and workplace‑safety monitoring around ammonia sources
- Agricultural NH₃ emission monitoring from barns, manure storage and fields
- Industrial emission and process monitoring for NH₃ and related gases
- Fence‑line monitoring at industrial or agricultural facilities
- Spatial NH₃ mapping over open paths up to 150 m
- Real‑time ammonia concentration measurement in dynamic outdoor environments
Frequently Asked Questions
What is an open path ammonia analyzer?
An open path ammonia analyzer measures NH₃ along a free air path between the instrument and a reflector. This contact‑free method avoids sampling losses. As a result, it provides representative average concentrations over distances from 20 to 150 meters.
Which gases can the OPC‑UV3‑DL‑301 detect?
It primarily measures NH₃ and can also detect NO and SO₂ using UV DOAS technology. Consequently, the system supports multiple gas‑related applications.
Where is the system used?
Typical applications include agricultural ammonia monitoring, fence‑line measurements, industrial emission control and environmental research. In addition, it is suitable for long‑term field campaigns.
Does the analyzer require calibration gases?
No. DOAS technology is calibration‑free and does not require calibration gas cylinders. Therefore, operation becomes simpler and long‑term cost is reduced.
What distances can it cover?
The system supports open‑path measurements between 20 and 150 meters. Furthermore, it maintains accurate alignment using a motorized telescope head and retroreflector setup.
Optical and Measurement Specifications
These specifications describe the core optical setup and gas‑detection performance of the OPC‑UV3‑DL‑301 open path ammonia analyzer.
| Parameter | Specification |
|---|---|
| Optics | Mirror telescope, 300 mm focal length |
| Detectable Gases | NH₃, NO, SO₂ |
| Limit of Detection (at 100 m path length, 5 min averaging) |
1 ppb (NH₃), 4 ppb (NO), 5.5 ppb (SO₂) |
| Path Length | Up to 150 m (retroreflector) |
| Time Resolution | Down to 1 minute |
| Compact Spectrometer | 190–310 nm spectral range, temperature stabilized |
Mechanical and System Specifications
The following parameters summarize the housing, system electronics and environmental design features relevant for field deployment.
| Parameter | Specification |
|---|---|
| Motorization | Azimuth 0°–360°, Elevation −40° to 75° |
| Housing | IP64, internal heating, dew‑point monitoring |
| Control Unit | Integrated embedded PC (Windows 10 IoT) |
| Temperature Control | Active heating & cooling |
| Additional Sensors | Ambient temperature, pressure, housing dew point |
| Interfaces | LAN, WiFi, internal storage |
| Power Supply / Consumption | 24 V, max. 80 W |
Interested in open‑path ammonia monitoring?
Contact us for a quote or technical consultation.
Airyx works with trusted distributors worldwide to provide local support for open‑path DOAS, MAX‑DOAS and air‑quality monitoring solutions.
For direct inquiries, please use the contact form below.
The map below shows the regions currently supported by our international distributor network.
EUROPE
FRANCE:
MEGATEC SAS
Immeuble Homère, Les Algorithmes
91190 Saint-Aubin, France
Phone: + 33 1 69 35 58 00
Website: https://www.megatec.fr/
Contact: https://www.megatec.fr/contact
Contact person: Fabrice Losbar
SLOVAKIA, CZECH & LITHUANIA:
ENVItech Bohemia s.r.o.
Ovocná 34
161 00 Praha 6
Czech Republic
Webite: ENVItech Bohemia s.r.o.
Contact: Contact
SPAIN & PORTUGAL:
GREEN LIGHT RESEARCH SLU
Airyx products at Green Light Research:
ICAD NOx analysators
ICAD HONO/NO2 anaylsator
Open Path remote sensing
SkySpec remote sensing
ITALY:
LUCHSINGER SRL
Website: http://www.luchsinger.it/
Airyx Products | Luchsinger
UNITED KINGDOM & IRELAND:
CURA TERRAE AIR LTD
(FORMERLY ENVIRO TECHNOLOGY SERVICES LTD)
Unit B1, Kingfisher Business Park, London Road,
Stroud, Gloucestershire, GL5 2BY, UK
Phone: +44 (0) 1453 733200
Website: www.et.co.uk
NO₂/NOx/NO Analyser High Grade Version (ICAD 200DL) | ET
AirYX Plume Chasing – NO2 / NOX / NO ICAD In Situ Monitor | ET
AirYX HONO / NO2 Analyser (Model ICAD 200L) | Enviro Technology Services (et.co.uk)
NETHERLANDS, BELGIUM, LUXEMBOURG, DENMARK, SWEDEN, NORWAY:
THE DUTCH SCIENTIST
Kardinaal van Rossumplein 11
5211 RV ‘s-Hertogenbosch
The Netherlands
Phone: +31 629 437 116
Website: www.thedutchscientist.com
FINLAND:
HNU NORDION
Atomitie 5 B 600371, HELSINKI, FINLAND
Phone: +40 745 6225
Website: https://hnunordion.fi/
GREECE:
Polaris Environment Ltd
Complete Environmental Solutions
44 Lagoumitzi Str, 11745 Athens, Greece
Attn. Grigoris Nikolidakis
Phone: +306975906253
Website: www.polaris-environment.gr
ROMANIA (ICAD only):
APEL LASER
Mogosoaia, Strada Vanatorilor nr. 25, cod 077135, jud. Ilfov, Romania
Phone: +40 21 31 70 910
Website: Apel Laser » Lighting the Future
ROMANIA (Open Path, SkySpec, WGA):
PHANOS
Bucharest-Ploiesti Road 17, 7th floor, Bucharest, 013682, Romania
Website: Apel Laser » Lighting the Future
Contact
BULGARIA, SERBIA, NORTH MACEDONIA, ALBANIA, MONTENEGRO, SLOVENIA, CROATIA, TURKEY:
STABO-Tech. Ltd.
ul. Dimitar Naumov, 88
6000 Stara Zagora, Bulgaria
Phone: 0039 349 5440483
Website: http://stabo-tech.eu/
ASIA
INDIA:
M&G analyser systems
501,Zenith commercial complex
28/2 Near Agricultural college.
Shivaji Nagar, Pune -411007, India
Website:
:: M & G Analyser Systems | Pune ::
Contact:
:: M & G Analyser Systems | Pune ::
Phone: +91 9822667465.
Kind Attn: Hemanth Krishna Martha,
VIETNAM:
REECO Science and Technology Co., Ltd.
Building A, Software Technology Park, Vo Truong Toan Street,
Vietnam National University, Quarter 6, Linh Trung Ward, Thu Duc City,
Ho Chi Minh City, Vietnam
Website:
Air quality monitoring equipment – Reeco (reecotech.com.vn)
Contact:
INDONESIA:
PT JJExotranoz Inter Vania
Jln. Raya Boulevard Q1 no. 5, Cibubur, Indonesia
Contact: Jefry KP
CHINA:
LICA United Technology Limited
The 5th.Building,No.18,Anningzhuang East Road
Haidian District, 100085, Beijing, China.
Website: LICA United Technology Limited (li-ca.com)
Airyx Products:
ICAD NO2 / NOx / NO Analyzer – Trace gas measurement
ICAD NO2 / NOx / NO分析仪 – 痕量气体测量 – 北京理加联合科技有限公司 (li-ca.com)
REPUBLIC OF KOREA:
Aireet Inc.
105-502 (5F), 16, Gakhwa-daero 69beon-gil, Buk-gu
Gwangju, Republic of Korea
Phone: +82 (0)10-9350-8148
Website: www.aireet.co.kr
Contact Person: Joonwoo Kim
RUSSIA AND CIS – (ARMENIA, AZERBAIJAN, BELARUS, KAZAKHSTAN, KYRGYZTAN, MOLDOVA, TAJIKISTAN, AND UZBEKISTAN):
Eniseylab Ltd
Russia, 660025, Krasnojarsk, Shelkovaya, 10, Room 102
Phone: +7 (391) 271-66-50
Contact Person: Dmitriy Zhiltsov
Website: www.eniseylab.ru
