Certain malfunctions cause the mA measurement to return to the error output level, see Configuring analog output. For more information, see the following table.
Invalid calculation parameters.: RI adjustment parameters are invalid. Perform RI adjustment or contact helpdesk@vaisala.com.
Blank image corrupted.: Blank image for IDS image detection algorithm is corrupted. Create blank image or contact helpdesk@vaisala.com.
There are 4 error state messages, in rising severity order:
- Info
- Warning
- Error
- Critical
The 32-bit error code register is divided into two types of sections:
- Status bits (image and temperature)
- Error bits (environmental, calculation, and system).
In status sections, bits of that section form a value that represents the status of that measurement. For example, if the four bits in the image section are 0x0110 (= 6 in decimal representation), image measurement status is External light level too high.
In error bits sections, each bit represents an error or status, which are independent from each other. This means that there can be multiple errors active simultaneously. For example, if the four bits in the calculation section are 0x0110, Temperature out of concentration curve range. and Invalid calculation parameters. are active.
Status | Severity | LED | mA error state | mA secondary error state | Modbus error code field | Modbus error code bit | Comment |
---|---|---|---|---|---|---|---|
Powered on | Normal | Green | - | - | - | - | The device is powered on. No communication to RS-485 port with device Modbus ID detected. |
RS-485 response | Normal | Green, blink | - | - | - | - | The device received communication to the RS-485 port, either from a Modbus RTU master, or Indigo520 transmitter. |
Image quality low. | Warning | Yellow | - | - | Image | 1 | The slope of the optical image is not clear, possible reasons: the prism is coated, excessive thermal noise, outside light. |
External light level high. | Warning | Yellow | - | - | Image | 2 | External light is disturbing the measurement. |
Prism coating detected. | Error | Red | x | - | Image | 3 | Prism is coated and requires washing or cleaning. |
No liquid detected. | Warning | Yellow | x | x | Image | 4 | No liquid detected because of empty pipe, for example. No sample available for measurement. |
No optical image. | Error | Red | x | - | Image | 5 | Critical error, optical image can not be extracted, contact help desk. |
External light level too high. | Error | Red | x | - | Image | 6 | External light is disturbing the measurement excessively. |
Temperature measurement error. | Error | Red | x | - | Temperature | 1 | Temperature measurement can not be made, possible temperature sensor failure. |
Concentration out of concentration curve range. | Warning | Yellow | - | - | Calculation | 1 | Concentration is outside the valid range for the used concentration curve. Reliability of the measurement can not be guaranteed, outputs are still active. |
Temperature out of concentration curve range. | Warning | Yellow | - | - | Calculation | 2 | Temperature is outside the valid range for the used concentration curve. Reliability of the measurement can not be guaranteed, outputs are still active. |
Invalid calculation parameters. | Error | - | x | - | Calculation | 4 | C-parameters are not correctly set. |
Calibration mode active. | Normal | - | x | - | Calculation | 8 | Calibration mode is activated. |
Internal temperature too high. | Error | Red | x | - | Environmental | 1 | The temperature at the electronics compartment exceeds 65 °C (149 °F) |
Internal humidity too high. | Error | Red | x | - | Environmental | 2 | The humidity at the electronics compartment exceeds 60 %RH |
Blank image corrupted. | Error | Red | x | - | System | 2 | System failure, contact technical support. |