TSI Incorporated Q-TRAK Plus 8552, Operation And Service Manual

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49
Appendix A
SPECIFICATIONS
Specifications are subject to change without notice.
CO
2
Sensor type......................................Non-Dispersive Infrared (NDIR)
Range ..............................................0-5000 ppm
Accuracy .........................................±(3% of r 50 ppm) at 25
°
C
(Add uncertainty of
±
0.36% of reading
per
°
C [
±
0.2% of reading per
°
F] for
change in temperature.)
Resolution .......................................1 ppm
Temperature Sensor
Type ................................................Thermistor
Range ..............................................0 to 50
°
C (32 to 122
°
F)
Accuracy .........................................±0.6
°
C (1.0
°
F)
Resolution .......................................0.1
°
C (0.1
°
F)
Response time .................................30 seconds (90% of final value, air
velocity at 2 m/s)
Display units ...................................
°
C or
°
F (user selectable)
Humidity
Sensor type......................................Thin-film capacitive
Range ..............................................5 to 95% rh
Accuracy .........................................±3% rh (includes ±1% hysteresis.)
Resolution .......................................0.1% rh
Response time .................................20 seconds (for 63% of final value)
CO Sensor
Sensor type......................................Electro-chemical
Range ..............................................0–500 ppm
Accuracy .........................................±3% of reading or 3 ppm whichever is
greater [add ±0.5%/
°
C (0.28%/
°
F) away
from calibration temperature]
Resolution .......................................1 ppm
Response time .................................<60 seconds to 90% of final value.