CL-200 Series User Manual Version 1.2.0 Apr. 2019
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Easy integration with SCADA software
Modbus is one of the most popular protocols used in the industrial world.
Supporting traditional serial protocols of RS-485 and Ethernet protocols allow the
CL-200 series well-integrated into the HMI/SCADA systems.
Alarm
CL-200 series allows users to set high alarm level for PM2.5/CO/CO
2
/H2S/NH3/
HCHO/TVOC/Temperature/Humidity/Dew Point and low alarm level for
Temperature /Humidity /Dew Point, and to enable/disable the alarm functions. An
Alarm LED indicator on the front of the CL-200 module will flash when an alarm
event is activated, and a relay output related to all alarm events can be use to tap
an alarm light/sound or control the IAQ devices such as ventilators, air cleaners,
and filters. Beep alarm is available when the CO/CO
2
/H2S/NH3/ HCHO/TVOC high
level alarm occurs.
Automatic Baseline Correction
The built-in ABC algorithm makes the CO
2
sensor on the CL-202, CL-212, CL-203,
CL-213, maintenance-free. In most indoor applications, the carbon dioxide level
drops to nearly outside air - 400 ppm, and then the ABC algorithm constantly keeps
track of the lowest reading and slowly corrects it as the expected fresh air value of
400 ppm. The ABC algorithm can not apply for the places where are no periods that
the CO
2
concentration drops to background level such as greenhouses, hospitals,
24-hour operation factories or stories. The ABC function needs be disabled where
the spaces the CO
2
concentration may be elevated at all times.
Easy Wiring
Support for RS-485, Ethernet and Power over Ethernet (PoE) interfaces for users
to choose the appropriate one to meet the field requirements.
Power over Ethernet (PoE)
The CL-200 series features true IEEE802.3af-compliant (classification, Class 1)
PoE technology that allows both power and data to be carried over a single
Ethernet cable. PoE provides a unified power system, as well as backup provisions
for critical building functions, without any additional cables, outlets or connections.
It can reduce the power supply wiring and maintenance costs, and improve system
scalability.
