Q-Check CO2 and CO Meter                                                    HOME

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CO2 concentration

Sensor type

Non-Dispersive Infrared (NDIR)

Range

0 - 5000 ppm

Accuracy

¡¾3% of reading ¶Ç´Â ¡¾50 ppmÀÌ»ó, at 25¡ÆC (add ¡¾0.36% of reading per ¡ÆC away from calibration temperature, ¡¾0.2% of reading per ¡ÆF)

Resolution

1 ppm

Response time

20 seconds (for 63% of final value for 500ppm step change in still air)

CO (Model 8731 only)

Sensor type

Electro-chemical

Range

0 - 500 ppm

Accuracy

¡¾3% of reading ¶Ç´Â ¡¾4ppm ÀÌ»ó, at 25¡ÆC (add ¡¾0.5% of reading per ¡ÆC away calibration temperature, ¡¾0.28% of reading per ¡ÆF)

Resolution

1 ppm

Repeatability

¡¾2% of reading

Response time

< 60 seconds to 90% of final value

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Operating range

5 to 45¡ÆC (41 to 113¡ÆF)

Storage range

-20 to 60¡ÆC (-4 to 140¡ÆF)

Time constant

Values

2, 5, 10, 30, or 60 seconds

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Batteries

Four AA-size Alkaline or NiCd

AC adapter

Optional

Approx. battery life

13.5 hour (Alkaline), 4.75 hours (NiCd)

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External dimensions

100mm x 168mm x 38mm
(3.9 in. x 6.6 in. x 1.5 in.)

Probe length

Model 8731: 16.1 cm (6.34 in.)
Model 8730: 11.7 cm (4.60 in.)

Probe diameter

1.9 cm (0.75 in.)

Weight with batteries

0.594 kg (1.32 pounds)

Display

4-digit LCD, 15 mm (0.6 in) digit height

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Factory calibration

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User calibration

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Printer interface

Type

Serial

Baud rate

1200

 

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