Emerson CMF200A Manual do Utilizador descarregar pdf (Página 25)

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Flow and Density Meters 25

Hazardous area classifications continued

High-temperature models CMF200A, CMF200B, CMF300A, CMF300B, CMF400A, or CMF400B with

junction box connected to MVD transmitter

Use the above graph to determine the temperature class for a given fluid and ambient temperature. The maximum surface

temperature for dust is as follows: T6:T 80 °C, T5:T 95 °C, T4:T 130 °C, T3:T 195 °C, T2:T 290 °C, T1:T 363 °C. The minimum

ambient and process fluid temperature allowed for dust is –40 °C.

The use of the sensor at an ambient temperature higher than +55°C is possible, provided that the ambient temperature does not

exceed the maximum temperature of the medium taking into account the temperature classification and the maximum operating

temperature of the sensor.

Ambient temperature range Ta –50 °C to +55 °C

Models CMF010, CMF025, CMF050, CMF100, CMF200 or CMF300 with core processor

(1)

(1) Refer to page 26 for “T” rating graph for high-temperature models with core processor.

Use the above graph to determine the temperature class for a given fluid and ambient temperature. The maximum surface

temperature for dust is as follows: T5:T 95°C, T4:T 130°C, T3:T 195°C, T2 to T1:T 254°C.

Ambient temperature range Ta –40 °C to +60 °C

Sensor fluid temp (°C)

Max ambient temp (°C)

Sensor fluid temp (°C)

Max ambient temp (°C)

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Emerson CMF200A Manual do Utilizador Página 25