16 Troubleshooting
16.1 Status LED and device status
The status LED (MOD STATUS) on the transmitter display provides a quick indication of device status by
changing color and flashing. If the transmitter was ordered without a display, the LEDs on the outputs board
inside the transmitter provide the same information.
Table 16-1: Status LED and device status
Status LED condition Device status
Solid green No alerts are active.
Solid yellow One or more alerts are active with Alert Severity = Out of Specification,
Maintenance Required, or Function Check.
Solid red One or more alerts are active with Alert Severity = Failure.
Flashing yellow (1Hz) Auto zero or SMV test in progress
Flashing green An auto zero is being performed.
Status LED off Transmitter is not receiving power.
Display is not seated or not functioning properly.
16.2 API Referral troubleshooting
16.2.1 Extrapolation alert is active
Cause
Line pressure, line temperature, or line density is outside the range of the configured API table.
Recommended actions
1. Check your process conditions against the values reported by the device.
2. Verify the configuration of the API Referral application and related parameters.
16.2.2 Inaccurate referred density reading
Cause
• Inaccurate density measurement
• Inaccurate temperature measurement
• Incorrect reference conditions
• Incorrect API table selection
Recommended actions
1. Verify the line density value.
2. Verify the line temperature value.
3. Ensure that the application is configured to use the appropriate temperature source.
4. Ensure that the pressure source is configured correctly, that the external pressure device is
operating correctly, and that both devices are using the same measurement units.
Configuration and Use Manual Troubleshooting
MS-00809-0200-1600 May2024
Configuration and Use Manual 177
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