Troubleshooting
VI-18
Thermo Scientific Orion 2120XP Calcium Hardness Analyzer User Guide
A hard reset should be performed if the analyzer becomes unresponsive or
the status indicators are flashing. Perform the following sequence:
• Carefully open the front cover of the electronics case (loosen the four
corner screws).
• Press the small button located on the raised portion of the PCB to reset
the electronics.
• Close the front cover of the electronics case and tighten the screws.
System settings and calibrations are preserved and analyzer returns to the
measure mode. The actual value for concentration and temperature will
be displayed if the electrodes are properly installed. If the system does not
reset, contact Technical Support at 1-800-225-1480 for assistance.
In the event you require technical assistance, please have the serial number
available when calling for assistance along with the software version.
• The analyzer serial number is located on the underside of the
electronics enclosure or if panel mounted then on the backside of the
electronics enclosure.
• The software revision is accessed through the diagnostics mode.
Hard Reset
Serial Number and
Software Revision