Emerson 3051S Manual de usuario descargar pdf (Pagina 53)

Rosemount 3051

September 2014

www.rosemount.com

3051T In-Line

Ranges 1-4: 11016 psi (759,53 bar)

Range 5: 26016 psig (1793,74 bar)

Failure mode alarm

HART 4-20 mA (output option code A)

If self-diagnostics detect a sensor or microprocessor failure, the

analog signal is driven either high or low to alert the user. High or

low failure mode is user-selectable with a jumper/switch on the

transmitter. The values to which the transmitter drives its

output in failure mode depend on whether it is configured to

standard, NAMUR-compliant, or custom levels (see Alarm

Configuration below). The values for each are as follows:

Output code M

If self-diagnostics detect a gross transmitter failure, the analog

signal will be driven either below 0.94 V or above 5.4 V to alert

the user (below 0.75 V or above 4.4 V for Option C2). High or low

alarm signal is user-selectable by internal jumper.

Output code F, W, and X

If self-diagnostics detect a gross transmitter failure, that

information gets passed as an alert and a status along with the

process variable.

Temperature limits

Process

At atmospheric pressures and above. See Table 10.

Humidity limits

0–100% relative humidity

Turn-on time

Volumetric displacement

Less than 0.005 in

(0,08 cm

)

High alarm Low alarm

Default 21.75 mA 3.75 mA

NAMUR compliant

(1)

(1) Analog output levels are compliant with NAMUR

recommendation NE 43, see option codes C4 or C5.

22.5 mA 3.6 mA

Custom levels

(2)

(2) Low alarm must be 0.1 mA less than low saturation and high

alarm must be 0.1 mA greater than high saturation.

20.2 - 23.0 mA 3.4 - 3.8 mA

Ambient

-40 to 185 °F (-40 to 85 °C)

With LCD display

(1)(2)

: -40 to 176 °F (-40 to 80 °C)

(1) For the output code M and W, LCD display may not be readable and

LCD display updates will be slower at temperatures below -22 °F

(-30 °C).

(2) Wireless LCD display may not be readable and LCD display updates

will be slower at temperature below -4

°F (-20 °C).

Storage

(1)

-50 to 230 °F (-46 to 110 °C)

With LCD display: -40 to 185 °F (-40 to 85 °C)

With Wireless Output: -40 °F to 185 °F (-40 °C to 85 °C)

(1) If storage temperature is above 85°C, perform a sensor trim prior to

installation.

Table 10. 3051 Process Temperature Limits

3051CD, 3051CG, 3051CF, 3051CA

Silicone Fill Sensor

(1)

(1) Process temperatures above 185 °F (85 °C) require derating the ambient

limits by a 1.5:1 ratio.

with Coplanar Flange –40 to 250 °F (–40 to 121 °C)

(2)

(2) 220 °F (104 °C) limit in vacuum service; 130 °F (54 °C) for pressures

below 0.5 psia.

with Traditional Flange –40 to 300 °F (–40 to 149 °C)

(2)(3)

(3) 3051CD0 process temperature limits are –40 to 212 °F (–40 to 100 °C).

with Level Flange –40 to 300 °F (–40 to 149 °C)

(2)

with 305 Integral

Manifold

–40 to 300 °F (–40 to 149 °C)

(2)

Inert Fill Sensor

(1)(4)

(4) Inert fill with traditional flange on Range 0: limits are 32 to 185°F

(0 to 85°C).

–40 to 185 °F (–40 to 85 °C)

(5)(6)

(5) 160 °F (71 °C) limit in vacuum service.

(6) Not available for 3051CA.

3051T (process fill fluid)

Silicone Fill Sensor

(1)

–40 to 250 °F (–40 to 121 °C)

(2)

Inert Fill Sensor

(1)

–22 to 250 °F (–30 to 121 °C)

(2)

3051L low-side

temperature limits

Silicone Fill Sensor

(1)

–40 to 250 °F (–40 to 121 °C)

(2)

Inert Fill Sensor

(1)

-40 to 185 °F (–40 to 85 °C)

(5)

3051L high-side temperature limits (process fill fluid)

SYLTHERM XLT –102 to 293 °F (–75 to 145 °C)

D.C. Silicone 704

32 to 401 °F (0 to 205 °C)

D.C. Silicone 200 –49 to 401 °F (–45 to 205 °C)

Inert –49 to 320 °F (–45 to 160 °C)

Glycerin and Water 5 to 203 °F (–15 to 95 °C)

Neobee M-20 5 to 401 °F (–15 to 205 °C)

Propylene Glycol and

Water

5 to 203 °F (–15 to 95 °C)

Performance within specifications less than 2.0 seconds

(20.0 seconds for PROFIBUS PA and F

OUNDATION fieldbus

protocols) after power is applied to the transmitter.

(1)

(1) Does not apply to wireless option code X.

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