​Model 480L

Single/Multi-Channel Industrial Safety Ozone Monitor​​​TAPI_480L_OZONE_RSZ.png


ESD Fundamentals - 04786.pdfFundamentals of Electro-Static Discharge (ESD)216 KB
Note on 480 Manuals.pdf480 Manual50 KB
SAL000107A - Industrial Gas Instruments Overview.pdfIndustrial Gas Instruments Overview555 KB
SAL000110A - 480L.pdf480L Specification1094 KB
SAN20-0005A APPNOTE 480L.pdfMultichannel Stream Selector Option for the 480L Industrial Ozone Monitor213 KB


​​ Measurement Principle
​UV Absorption (Beer-Lambert Law)
​​Measurement Range
​0-1 ppm to 0-500 ppm
ppmv, ppbv, pphm, ug/m3
​​​ Precision / Repeatability
​± 0.5% of full scale
± 1% of full scale
 Lower Detectable Limit
0.003 ppm
 Display Resolution
0.001 ppm
 Response Time
< 30 seconds to 95%
 ​Zero Drift .005 ppm/month, non-cumulative
(.050 ppm/month Ranges >20 ppm)
 ​​Temperature Range
5 - 45°C
 Alarm Mode
Latching/non-latching, operator selectable
 Stream Selector Cycle Time
1 min. to 6 min., operator selectable
 ​Sample Flow Rate
0.8 LPM
100-240VAC, 50/60Hz, 74W
 Analog Output
0-5V or 4-20mA isolated output
​​​​ Optional High Current Relay Outputs 
    (single channel only)
Form C Dry Contact, 250VAC/5A (System OK, Global HI Alarm, Global HI-HI Alarm)
 Optional Multi-stream Signal Outputs
    (3 or 6 channel, 3 per channel)

Channel ID, HI Alarm, HI-HI Alarm

 Status Outputs System OK, Invalid Reading, Pneumatic Fault, UV Lamp Fault 
​​​​Dimensions (H x W x D)
​NEMA 4X - 16.17” x 15.96” x 6.80“ (410.6 mm x 405.4 mm x 172.7 mm)​
​​NEMA 4X - 17.6 lbs (8 kg)
​​​ Stream ID Outputs
Channel 1 through 6​
 Communication Interface
Ethernet (coming soon)
WiFi​ (coming soon)
​​​ Approvals                    
​CE pending
 ​​​​Degree of Protection (NEMA)              
IP65 (NEMA 4X)​ 
​​ Warranty
1 year​
​Specifications are subject to change without notice. 
All specifications are based on constant conditions.


  • UV Absorption Method
  • Intuitive graphical user interface
  • Mercury-free UV LED source
  • Built-in diagnostics/error logs/warning alarms
  • Modular internal design
  • Minimal zero drift
  • 1, 3 and 6 stream versions available for safety monitoring
  • Programmable concentration alarms
  • Temperature and pressure compensation (standard)
  • Ethernet, WiFi standard (coming soon)​


The Model 480L UV Photometric Ozone Monitor is an extremely stable analyzer, ideal for critical low-level ppm safety and process applications. Its calibration is NIST traceable and the included pressure and temperature compensation ensure high accuracy under all conditions.

​The Model 480L is housed in a splashproof NEMA 4X wall mount enclosure and can be purchased either as a single stream unit or as a multi-channel unit capable of monitoring up to six individual sample streams. The Model 480L has been designed to deliver excellent performance, high reliability and simple operation. The modular design allows for easier field serviceability. Operating parameters can be easily set up in the field using the operator-friendly menu driven software.

​The mercury-free UV LED source in the detection cell makes this process ozone monitor the first of its kind. 

Built-in diagnostics provide warning signals in case operating parameters are out of ​range. Test values can be viewed while the Model 480L is operating. These displays, warnings, and self-diagnostics, along with the modular design, allow maximum uptime. A self-adjusting pump allows for longer pump life. In addition, improved communication interfaces allow for greater productivity. Any function that can be set or monitored from the front panel can be remotely set or viewed.​

Learn more: www.teledyne-api.com/480