Specifications - Extech Instruments CO250 User Manual

Specifications

Function Range
0 to 5000ppm
5000 to 9999ppm
CO
2
Pressure dependence: +1.6% reading per kPa deviation from
normal pressure, 100kPa
-10 to 60°C
Temperature
14 to 140°F
Humidity 0.0 to 99.9%
-5 to 60°C
Wet Bulb
23 to 140°F
-20 to 60°C
Dew Point
-4 to 140°F
Display
Sensor Type
Operating Conditions
Storage Conditions
Power Supply
Battery Life
Dimensions / Weight
Resolution
1ppm
1ppm
0.1°
0.1%
0.1°
0.1°
Triple LCD with backlight
CO : NDIR (non-dispersive infrared) technology
2
Humidity: Capacitance sensor;
Temperature (air): Thermistor
o o
0 to 50 C (32 to 122 F); < 95% RH non-condensing
o o
-20 to 60 C ( -4 to 140 F); <99% RH non-condensing
4 x 1.5V 'AA' batteries or AC adaptor (9V/1A)
approx. 24 hours (alkaline batteries)
200x70x57mm (7.9x2.7x2.3")/190g (6.7 oz.)
7
Accuracy
±50ppm±5%rdg
Not specified
±0.6°C/0.9°F
±3%(10 to 90%)
±5%(< or > 10 to 90%)
Calculated from RH and
Temperature
CO250-EU V1.2 6/09