DC-TEC-MAN-CL96_B
DODtec.com
REV 1/9/2024 815-788-5200
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ChemLogic® CL96 Operating Manual
Chapter 1 – Overview
1.1 Introduction
DOD Technologies’ ChemLogic
®
CL96 simultaneously monitors up to ninety-six locations (also called points)
for toxic and corrosive gases. It responds to gases that exceed a programmed alarm level by:
• Triggering visual alarms that warn of high or low concentrations
• Triggering relays or activating analog outputs to external devices
• Displaying the point number, gas type, and gas concentration
• Recording the alarm information and storing it in memory
The CL96 triggers outputs for each individual point for two levels of gas concentrations. These programmable
limits are factory-set at 1 TLV and 2 TLV for their respective gases. Each sample point may be positioned up to
400 feet (121 m) from the instrument. This allows operators to remotely monitor gas concentrations in areas
subject to potential gas leaks. The CL96 can monitor and detect a wide range of gases. It is designed for
continuous and prolonged operation when routine maintenance is performed (per factory specifications). The
CL96 employs DOD Technologies’ ChemLogic colorimetric technology, utilizing ChemLogic cassettes with
chemically infused tape for fast and accurate gas detection.
See Section 7.7 for important disposal information.
WARNING : If the system is used in a manner not specified by the manufacturer, the
protection provided by the equipment may be impaired.
1.2 Theory of Operation
The system draws sample flow simultaneously from all installed points. Part of the sample flow is diverted
across the ChemLogic cassette tape. The CL96 uses an advanced optical detection system to measure the
light level reflected from the tape. As the target gas is detected, the color of the tape changes. This color
change results in a loss of reflected light across the tape. This loss of reflected light is detected by the
advanced optics system. The CL96 will then report a gas concentration reading and/or a gas alarm.
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