Ventostat
8001B/8002BEngineering Specification The
CO2 sensor for demand control ventilation
shall be the 8001B or 8002B non-dispersive infrared sensor
made by Telaire® (805-964-1699). The diffusion gas chamber
in the sensor should incorporate a reflective, gold plated
light pipe or waveguide surrounded by a gas permeable
teflon based hydrophobic diffusion filter that prevents
particulate and water contamination of the sensor. The
sensor shall provide simultaneous analog outputs in volts
and miliamps and shall have a gold bifurcated relay that
can be operated as normally open or closed. The sensor
shall incorporate elevation correction adjustment and
ABCLogic™
(Automatic Background Calibration) software for self-correction
of drift to better than ±10ppm per year. All sensor electronics
shall be conformal coated for durability. The sensor shall
have an accuracy of ±75 ppm or 7% of the reading (whichever
is greater). All adjustments to the sensor including output
scaling, elevation adjustment, relay setpoint, relay dead-band,
proportional or exponential output, and single-point calibration
shall be made via computer connection to an on-board RJ45
jack. The 8002 product shall also be adjusted using the
on-board push buttons and display. For ease of installation,
the sensor shall have a detachable base with all field
wiring terminals on the base. This product meets or exceeds
specifications for the Ventostat® Model 2001V.
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The
CO2 sensor for demand control ventilation
shall be the 8001B or 8002B non-dispersive infrared sensor
made by Telaire® (805-964-1699). The diffusion gas chamber
in the sensor should incorporate a reflective, gold plated
light pipe or waveguide surrounded by a gas permeable
teflon based hydrophobic diffusion filter that prevents
particulate and water contamination of the sensor. The
sensor shall provide simultaneous analog outputs in volts
and miliamps and shall have a gold bifurcated relay that
can be operated as normally open or closed. The sensor
shall incorporate elevation correction adjustment and
ABCLogic™
(Automatic Background Calibration) software for self-correction
of drift to better than ±10ppm per year. All sensor electronics
shall be conformal coated for durability. The sensor shall
have an accuracy of ±75 ppm or 7% of the reading (whichever
is greater). All adjustments to the sensor including output
scaling, elevation adjustment, relay setpoint, relay dead-band,
proportional or exponential output, and single-point calibration
shall be made via computer connection to an on-board RJ45
jack. The 8002 product shall also be adjusted using the
on-board push buttons and display. For ease of installation,
the sensor shall have a detachable base with all field
wiring terminals on the base. This product meets or exceeds
specifications for the Ventostat® Model 2001V.