Emerson Rosemount 644h Manual descargar pdf (Pagina 41)

A-5

Rosemount Inc

Ambient Temperature Effect

Transmitters can be installed in locations where the ambient temperature is

between –40 and 85 °C (–40 and 185 °F).

Sensor Options

Temperature Effects per

1.0 °C(1.8°F) Change in

Ambient Temperature

(1)

(1) Change in ambient is with reference to the calibration temperature of the transmitter 68 °F(20°C) from

factory.

Ranges D/A Effect

2-, 3-, 4-Wire RTDs

Pt 100

(

α = 0.00385)

• 0.003 °C (0.0054 °F)

Entire sensor input range 0.001% of span

PT 100

(

α = 0.003916)

• 0.003 °C (0.0054 °F)

Entire sensor input range 0.001% of span

Pt 200 • 0.004 °C (0.0072 °F)

Entire sensor input range 0.001% of span

Pt 500 • 0.003 °C (0.0054 °F)

Entire sensor input range 0.001% of span

Pt 1000 • 0.003 °C (0.0054 °F)

Entire sensor input range 0.001% of span

Ni 120 • 0.003 °C (0.0054 °F)

Entire sensor input range 0.001% of span

Cu 10 • 0.03 °C (0.054 °F)

Entire sensor input range 0.001% of span

Thermocouples

Typ e B • 0.014 °C

• 0.032 °C – (0.0025% of

(R – 300))

• 0.054 °C – (0.011% of

(R – 100))

• R ≥ 1000°C

• 300 °C

≤ R < 1000 °C

• 100 °C

≤ R< 300 °C

0.001% of span

Typ e E • 0.005 °C+(0.00043%ofR) • All

0.001% of span

Typ e J • 0.0054 °C +(0.0029%of R)

• 0.0054 °C + (0.0025% of

absolute value R)

• R ≥ 0 °C

• R<0°C

0.001% of span

Typ e K • 0.0061 °C +(0.00054% of R)

• 0.0061 °C + (0.0025% of

absolute value R)

• R

≥ 0 °C

• R<0°C

0.001% of span

Typ e N • 0.0068 °C +(0.00036% of R) • All

0.001% of span

Type R, S, W5Re/

W26Re

• 0.016 °C

• 0.023 °C – (0.0036% of R)

• R ≥ 200°C

• R<200°C

0.001% of span

Typ e T • 0.0064 °C

• 0.0064 °C +(0.0043% of

absolute value R)

• R ≥ 0 °C

• R<0°C

0.001% of span

DIN Type L • 0.0054 °C + (0.00029%

of R)

• 0.0054 °C +(0.0025% of

absolute value R)

• R

≥ 0 °C

• R<0°C

0.001% of span

DIN Type U • 0.0064 °C

• 0.0064 °C +(0.0043% of

absolute value R)

• R ≥ 0 °C

• R<0°C

0.001% of span

Millivolt Input • 0.0005 mV

Entire sensor input range 0.001% of span

2-, 3-, 4-Wire Ohm Input0.0084 Ω

Entire sensor input range 0.001% of span

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Emerson Rosemount 644h Manual Pagina 41

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