Refractometer LED indicators - PR53 - PR53AC - PR53AP - PR53GC - PR53GP - PR53M - PR53SD - PR53W

PR53 Series User Guide

Document code
M212898EN
Revision
E
Language
English
Product
PR53
PR53AC
PR53AP
PR53GC
PR53GP
PR53M
PR53SD
PR53W
Document type
User guide

The LED indicators are used to indicate the status of the refractometer when used without the Indigo520 transmitter.

The color of the LED corresponds to the severity:

  • Green indicates normal operation and power on.
  • Blinking green indicates successful digital communication to the RS485 port. When the green LED blinks, the refractometer has successfully received and responded to a Modbus request, or received successful communication from the Indigo520 transmitter.
  • Yellow indicates warning status. You need to attach the refractometer to Modbus, the Indigo520 transmitter, or Insight software.
  • Red indicates a critical failure where user interference is required. When the red LED is on, the refractometer may need to be sent to Vaisala for service. Contact helpdesk@vaisala.com.

The error codes can be read either through the Indigo520 transmitter, Modbus RTU port, or Vaisala Insight software with a USB adapter.

Figure 1. PR53 main circuit board
1
Service port
2
LED indicators