Vaisala GMW20 Manual do Utilizador descarregar pdf (Página 9)

User’s Guide _____________________________________________________ GMW20

Technical Data

Property Description / value

Measuring ranges 0 ... 2000 ppm CO

0 ... 5000 ppm CO

0 ... 10 000 ppm CO

0 ... 20 000 ppm CO

Accuracy at 25 °C against certified

factory references (includes

repeatability and calibration

uncertainty)

 (2 % of range + 2 % of reading)

Long-term stability <  5 % of range / 5 years

Response time (0 ... 63%) 1 minute

Warm-up time 1 minute

15 minutes full specifications

Operating temperature range -5 … +45 °C (+23 … +113 °F)

Storage temperature range -20 ... +70 °C (-4 … +158 °F)

Humidity range 0 ... 85 % RH , non-condensing

Output signal for CO

Selectable 0...20 mA or 4...20 mA

and 0...10 V

Resolution of analog outputs 8 bits

Optional outputs Relay output

LonWorks® interfaces

Recommended external load

current output

voltage output

max. 500 

min. 1 k

Power supply nominal 24 VAC/VDC

(18 ... 30 VDC)

Power consumption < 2.5 W

Housing material ABS plastic

Housing colour NCS 0502-G50Y

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 49 50

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Vaisala GMW20 Manual do Utilizador Página 9