Emerson 3051S Especificaciones descargar pdf (Pagina 57)

Reference Manual

00809-0100-4801, Rev FA

October 2010

3-15

Rosemount 3051S Series

NOTE

If the transmitter security jumper/switch is ON, adjustments to the zero and

span will not be able to be made. Refer to “Configure Security and Alarm” on

page 2-13 for security information.

Rerange with a Field Communicator v3.3 Only

The easiest and most popular way to rerange is to use the Field

Communicator only. This method changes the values of the analog 4 and 20

mA points independently without a pressure input.

From the HOME screen, enter the fast key sequence “Rerange with a

Communicator Only.”

1. At “Keypad Input” select 1 and use the keypad to enter lower range

value.

2. From “Keypad Input” select 2 and use the keypad to enter upper range

value.

Rerange with a Pressure Input Source and Field Communicator v3.3

Reranging using the Field Communicator and a pressure source or process

pressure is a way of reranging the transmitter when specific 4 and 20 mA

points are unknown.

NOTE

The span is maintained when the 4 mA point is set. The span changes when

the 20 mA point is set. If the lower range point is set to a value that causes the

upper range point to exceed the sensor limit, the upper range point is

automatically set to the sensor limit, and the span is adjusted accordingly.

1. From the HOME screen, enter the fast key sequence “Rerange with a

Pressure Input Source and a Field Communicator” to configure lower

and upper range values and follow the on-line instructions.

Traditional Fast Keys

1, 2, 3, 1, 1

Device Dashboard Fast Keys

1, 5

Traditional Fast Keys

1, 2, 3, 1, 2

Device Dashboard Fast Keys

3, 4, 1

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Emerson 3051S Especificaciones Pagina 57