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Reference Manual
00809-0200-4101, Rev AA
July 2008
Rosemount 2051
C-6
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.
Troubleshooting Refer to the table below to troubleshoot any problems encountered.
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.
Symptom Possible Causes Corrective Action
Mode will not leave
OOS
Target mode not set. Set target mode to something other
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
Temperature Status
is BAD
Measurement or
Device Error
See “Diagnostics” on page C-5