Emerson Process Management 2051 manual Troubleshooting, Overview, Rosemount, Reference Manual

Rosemount 2051

Reference Manual

00809-0200-4101, Rev AA July 2008

Troubleshooting

In Auto mode, PRIMARY_VALUE reflects the value and status quality of the output channels.

Methods

Sensor Calibration

In order to calibrate the sensor, the following steps are performed by the user calibration method:

1.Set MODE_BLK.TARGET = OOS.

2.Apply desired pressure (low pressure); allow to stabilize. Pressure applied must be between range limits defined in

PRIMARY_VALUE_RANGE.

3.Set CAL_POINT_LO to applied pressure.

4.Apply desired pressure (high pressure); allow to stabilize. Pressure applied must be between range limits defined in PRIMARY_VALUE_RANGE and greater than CAL_POINT_LO + CAL_MIN_SPAN.

5.Set CAL_POINT_HI to applied pressure.

6.Set SENSOR_CAL_DATE to current date.

7.Set SENSOR_CAL_WHO to person responsible for calibration.

8.Set SENSOR_CAL_LOC to calibration location.

9.Set MODE_BLK.TARGET = AUTO.

Refer to the table below to troubleshoot any problems encountered.

Symptom Possible Causes Corrective Action

Mode will not leave	Target mode not set.	Set target mode to something other
OOS		than OOS.
	Detailed status error	See “Diagnostics” on page C-5
	Resource block	The actual mode of the Resource block
		is OOS. See Resource Block
		Diagnostics for corrective action.
Pressure or Sensor	Measurement or	See “Diagnostics” on page C-5
Temperature Status	Device Error
is BAD

RESOURCE BLOCK

Overview	This section contains information on the Rosemount 2051 Resource Block.
	Descriptions of all Resource Block Parameters, errors, and diagnostics are
	included. Also the modes, alarm detection, status handling, and
	troubleshooting are discussed.
	Definition
	The resource block defines the physical resources of the device. The
	resource block also handles functionality that is common across multiple
	blocks. The block has no linkable inputs or outputs and it performs memory
	diagnostics.

C-6