Call Us Toll Free: 1-800-458-6153
Return To Main Interscan Home Page  |  Products  |  Tech Center  |  E-mail Us
Search Catalog
 All Categories    Four Point Monitoring Systems - PLC Series - Sulfur Dioxide
All Categories > Gas Detection Instruments And Systems > Multipoint (3 or more points) Continuous Monitoring Systems > Four Point Monitoring Systems - PLC Series - Sulfur Dioxide > Item # SRPLC424-20.0m  

Item # SRPLC424-20.0m, Four Point Monitoring Systems - PLC Series - Sulfur Dioxide

    border="0" Printable Page  
    Email Email This Page  
    Save To Favorites Save To Favorites

PLC Multipoint Monitoring Systems include:
  • Displays real time gas concentrations in ppm
  • Dedicated sensor, sample pump, and digital flow switch for each monitoring location
  • All control and display functions at easy-to-use operator interface
  • User adjustable, LO & HI alarm set points, activating dedicated relays for each monitoring location
  • Stackable tower lights for LO, HI, and fault alarms, and Piezo horn for HI alarm common to all channels
  • Alarm event and time tracking, last time calibrated tracking, specific for each sensor
  • Pump vacuum fault detection and fault display
  • System packaged in wall-mountable NEMA 12 enclosure
  • 4-20 mA output - dedicated for each point



± 2.0% of reading, ± 1 least significant digit. (Limited to accuracy of calibration standard)


± 0.5% of full scale

Minimum Detectability

1.0% of full scale


± 1.0% of full scale

Zero Drift

± 1.0% of full scale (24 hours)

Span Drift

Less than ± 2.0% of full scale (24 hours)


Against standard gas mixture, or via INTERSCAN's Electronic Calibration Service.

Lag Time

Less than 1 second

Rise time to 90% of final value (sec)


Rise time to 50% of final value (sec)


Fall time to 10% of original value (sec)



0-20.0 ppm


0.1 ppm


Sulfur Dioxide (SO2)

Number of Detection Points




Includes Auto Zero



The zero and span drift specifications assume that the analyzer is equilibrated, and is at constant temperature, with a properly maintained sensor.


Gas Detection Applications Primer

Sensor Principle of Operation

Interfering Gas Data

SO2 -Toxic and Hazardous Properties

Gas Detection Knowledge Base

Multipoint (3 or more points) System Instruction Manual
(PDF, 0KB)

How Do I Get Started?

Interscan Photo Gallery

Interscan Video Library

© Interscan Corporation
4590 Ish Drive #110 • Simi Valley, CA 93063–7682
TOLL FREE: (800) 458-6153 (US & Canada) • PHONE: (818) 882-2331
FAX: (818) 341-0642 • E-MAIL: