Emerson 3051S Spezifikationen PDF herunterladen (Seite 159)

Reference Manual

00809-0100-4801, Rev FA

October 2010

A-11

Rosemount 3051S Series

Humidity Limits 0–100% relative humidity

Turn-On Time When power is applied to the transmitter during startup, performance will be within specifications

per the time period described below:

Volumetric Displacement Less than 0.005 in

(0,08 cm

)

Damping Analog output response time to a step change is user-selectable from 0 to 60 seconds for one

time constant. Software damping is in addition to sensor module response time.

Failure Mode Alarm HART 4-20 mA (output option code A)

If self-diagnostics detect a gross transmitter failure, the analog signal will be driven offscale to

alert the user. Rosemount standard (default), NAMUR, and custom alarm levels are available

(see Alarm Configuration below).

High or low alarm signal is software-selectable or hardware-selectable via the optional switch

(option D1).

Alarm Configuration

Transmitter Turn-On Time (Typical)

3051S, 3051S_L 2 seconds

Diagnostics 5 seconds

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)

(3)

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

alarm must be 0.1 mA greater than high saturation.

(3) For option code DA2, low alarm custom values are 3.6 - 3.8

mA.

20.2 - 23.0 mA 3.4 - 3.8 mA

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Emerson 3051S Spezifikationen Seite 159