AQ COMFORT Instruction & Operations Manual
Version 1.01
Page 15 of 44
The NDIR sensor have the following specifications:
GAS
RANGE
ACCURACY
CARBON DIOXIDE
(CO
2
)
0 – 5000 ppm
2% of reading
+ 10 ppm
3. NON-GAS SENSORS
A. Ambient Temperature sensor
This is a solid state sensor located on the front panel of the monitor. The
ambient temperature is displayed on the
MEASURE
screen in either °F or °C.
The dew point is calculated from the ambient temperature and relative humidity.
The dew point is displayed on the Small and Large Font
MEASURE
screens as
DPt.
B. Humidity sensor
This is a solid state sensor located on the front panel of the monitor. The
relative humidity is displayed on the
MEASURE
screen in %RH (% Relative
Humidity). The Wet Bulb is calculated from the ambient temperature, relative
humidity, and barometric pressure. The wet bulb is displayed on the Large
Font
MEASURE
screen only as WBT.
C. External temperature sensor (T1)
The thermocouple is located at the bottom right side of the monitor. It can be
used with any optional or separate Type K thermocouple probe and/or wire.
The T1 temperature measurements are displayed on the Large Font
MEASURE
screen only as T1.
D. Differential Pressure / Air Velocity sensor.
If the monitor comes with the Differential Pressure option and/or the air velocity
option (optional separate L-type Pitot tube and pressure tubing), the internal
pressure sensor is a very low range pressure sensor. The Velocity
measurements are displayed on the
MEASURE
screen only as
VEL
.
Differential Pressure is displayed on the
MEASURE
screen only as
∆P
.
E. Connecting Differential Pressure Hoses:
Connect Metal Hose Connections to either P+ or P- Connection as shown.
P+ only will give you Positive pressure; P- only will give you Negative
