The CTS-M5 Series is a microprocessor based transmitter
It uses an Electrochemical gas sensor to detect a variety of gases
Typical applications are enclosed parking facilities, refrigeration rooms and oxygen storage rooms
QEL Engineers, through extensive research and development, have designed the M5 to be an industry leader in performance and application
The M5 offers good value. Standard features within the M5 can only be found as expensive options in other manufacturers’ product
A digital display (LCD), push-button programming and on-board meter jacks are all standard
The transmitter provides an analog output of 4-20 mA DC or 2-10 VDC, linear to the measured gas range, for transmission to the Building Automation System (BAS) or controller supplied by others
The signal is fully user assignable over the gas range and can be configured for rising or falling gas concentration
In addition, the RS-485 communications is built in Input voltages of 24 VDC or 24 VAC with wide tolerances are acceptable
Relay setpoints may be seen as increasing or decreasing actuation simply by adjusting the deadband relationship
Set the deactuation point above the actuation setpoint and the M5 will automatically alarm on decreasing concentrations
Relay setpoints are always present even though the relays themselves are an option
Calibration is very easy – simply apply the calibration gas and adjust the potentiometer to the desired reading on the display
The standard enclosure is a fire retardant Polycarbonate/ABS blend