Detcon 700 Series Remote Sensor/Alarm Relay Module With HART Interface - Manual (Page 20)

700 HART-RAM I.M.
• 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 – heater fault (TP-700), bridge fault (FP-700), or missing cell (DM-700). This status
is not used by the IR-700 or PI-700.
• Sensor in Calibration – The sensor is currently being calibrated
6.2.3 HART Status
The HART status section of the screen shows the status of the HART interface on the HART-RAM. 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 HART-RAM 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 HART-RAM has not been calibrated. Please see
Section 4.3.2.2 for calibration instructions
• DAC Span Not Calibrated – The 20mA output of the HART-RAM has not been calibrated. Please
see Section 4.3.2.2 for calibration instructions
• Modbus™ Communications Lost – The Model 700 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
6.3 Device Setup Menu
The Device Status Menu consists of three sub menus that allow parameters within the HART-RAM, and
within the sensor to be changed or modified, and allows calibration of the sensor.
6.3.1 Configuration Setup
The Configuration Screen displays the configuration of the Model 700 sensor. There are no fields that can be
changed on this screen, these fields are read directly from the Model 700 sensor.
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