Vaisala DRYCAP DM70 Guia do Utilizador descarregar pdf (Página 85)

Chapter 11 ____________________________________________________ Technical Specifications

DMP74A

Response time: 63 % (90 %) at flow rate 0.2 m/s, 1 bar

absolute pressure, +20 ˚C

0 Æ-40 ˚C T

(32 Æ40 ˚F T

) 20 s (120 s)

-40 Æ0 ˚C T

(-40 Æ32 ˚F T

) 10 s (20 s)

DMP74B/C

Response time: 63 % (90 %) at flow rate 0.2 m/s, 1 bar

absolute pressure, +20 ˚C

0 Æ -60 ˚C T

(32 Æ76 ˚F T

) 50 s (340 s)

-60 Æ0 ˚C T

(-76 Æ32 ˚F T

) 10 s (20 s)

Temperature

Measurement range -10 ... 60 ˚C (14 ... 140˚F)

Accuracy at +20 ˚C ±0.2 ˚C (±0.36˚F)

Typical temperature

dependence of electronics

±0.005 ˚C/˚C

Temperature sensor Pt100 IEC751 1/3 class B

PPM (ppm

or ppm

)

Measurement range (typical)

DMP74A 40 ... 200000 ppm

DMP74B/C 10 ... 20000 ppm

Accuracy at +20 ˚C (+68 ˚F)

< 40 ppm ± (0.5 ppm + 25.4 % of

reading)

> 40 ppm ± (7.3 ppm + 8.3 % of

reading)

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Vaisala DRYCAP DM70 Guia do Utilizador Página 85