Emerson Process Management 1500 •Primary variable, •AO analog output cutoff •AO added damping

Required Transmitter Configuration

CAUTION

Changing the channel configuration without verifying I/O configuration can produce process error.

When the configuration of a channel is changed, the channel’s behavior will be controlled by the configuration that is stored for the new channel type, which may or may not be appropriate for the process. To avoid causing process error:

•Configure the channels before configuring the mA output (see Section 4.3).

•When changing the mA output configuration, be sure that all control loops affected by this output are under manual control.

•Before returning the loop to automatic control, ensure that the mA output is correctly configured for your process.

If the mA output is used to report mass flow or volume flow, the following parameters must be configured:

•Primary variable

•Upper range value (URV) and lower range value (LRV)

•AO (analog output) cutoff

•AO added damping

•Fault action and fault value

•Last measured value timeout

To configure the mA output, see the menu flowchart in Figure 4-7.For details on mA output parameters, see Sections 4.5.1 through 4.5.5.

Figure 4-7Configuring the mA output

ProLink Menu

Configuration

Analog output

Primary variable is

Process variable measurement

·Lower range value

·Upper range value

·AO cutoff

·AO added damp

·Lower sensor limit

·Upper sensor limit

·Min span

·AO fault action

·Last measured value timeout

Process variable measurement

·Enable 3 position valve

·Analog valve setpoint

·Analog valve closed value

Before You Begin

Using ProLink II

Flowmeter Startup

Required Configuration

Configuration and Use Manual 23