Detcon TP-524D-HRT - Manual (Page 34)

Model TP-524D-HRT
TP-524D-HRT Instruction Manual Rev. 0.3 Page 30 of 48
 Loop current fault – The sensor has detected a condition where the 4-20mA output loop is not
functional
 Input voltage fault – The sensor is currently receiving an input voltage that is outside of the 12-
28VDC range
 Memory fault – The detector has a failure in saving new data to memory
 Processor fault – The detector has an unrecoverable run-time error
 Clearing Fault – The sensor reading failed to clear after removal of span gas during an AutoSpan
sequence
 Stability Fault – The sensor reading failed to attain a stable reading when span gas was applied during
an AutoSpan sequence
 Range Fault – Sensor fails the minimum signal change criteria during an AutoSpan sequence
 Sensor fault – The sensor cell has failed
 Zero Fault – the sensor drifts below –10% of full range
 Sensor Fault 2 – Wheatstone bridge fault
 Sensor in Calibration – The sensor is currently being calibrated
4.4.2.3 HART Status
The HART status section of the screen shows the status of the HART interface on the HRT Bridge PCA.
Icons next to each error description indicate if an error has occurred.
A green icon indicates the error
condition is not present and a red icon indicates an error has occurred.
 Unique ID Not Set – The unique device ID for the HRT Bridge PCA has not been set. This ID is set at
the Detcon factory prior to shipping. If this error occurs, please contact Detcon technical support.
 DAC Zero Not Calibrated – The 4mA output of the HRT Bridge PCA has not been calibrated. Please
see Section 4.4.3.4 for calibration instructions
 DAC Span Not Calibrated – The 20mA output of the HRT Bridge PCA has not been calibrated.
Please see Section 4.4.3.4 for calibration instructions
 Modbus Communications Lost – The TP-524D-HRT sensor has failed to respond to more than 3
Modbus poll requests. This error condition can be reset using the “Reset Comm Lost Status” button
that appears when this error condition occurs.
4.4.3 Device Setup Menu
The Device Status Menu consists of three sub menus that allow parameters within the HRT Bridge PCA, and
within the sensor to be changed or modified, and allows calibration of the sensor.
4.4.3.1 Configuration Setup
The Configuration Screen displays the configuration of the TP-524D-HRT sensor. There are no fields that can
be changed on this screen, these fields are read directly from the TP-524D-HRT sensor.