Critical Environment Technologies AST-IS5 Manuel d'utilisateur télécharger pdf (Page 6)

AST-IS5

ANALOG TRANSMITTER

with

INFRARED CO2 SENSOR & TEMPERATURE SENSOR

and

LCD DIGITAL DISPLAY

The AST-IS series are reliable, long life analog transmitters. Life expectancy of the

infrared sensor is 15-years. The AST-IS5 is an advanced transmitter that has been

designed for use in the “climate zone”.

The AST-IS5 measures both CO

gas and temperature in the ambient air and can

transmit data to a BAS system or controller. The local LCD display provides real

time values for the user. Standard measurement range is 0-2000 ppm.

SELF DIAGNOSTICS

The system contains complete self diagnostic procedures. A full system test is

executed automatically every time the power is turned on. In addition, constantly

during operation, the sensors are checked against failure by checking the valid

dynamic measurement ranges. All EEPROM updates, initiated by the sensor itself

are checked by subsequent memory read back and data comparisons. These

different system checks return error bytes to the system RAM.

NOTE: The sensor accuracy is defined as continuous operation (at least 3-

weeks after installation).

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Critical Environment Technologies AST-IS5 Manuel d'utilisateur Page 6