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“OS Missing” shown on Series 4000 Circuit Monitor (CM4) or PM800 series meter display

Issue
FAQ
 
Product Line
CM4000 series meters
PM800 series meters
DLF-3000

Environment
Power Meter Troubleshooting
 
Cause
There is an issue with the firmware on the meter and it will need to be reloaded.
 
Resolution
*Warning: The firmware utilities listed here can cause permanent damage to your product if applied incorrectly. Before downloading any firmware updates, verify the firmware you are downloading is appropriate for the specific model number of your product. If you have any doubts, contact Technical Support for guidance. 

*Warning: Be sure all other software, is not connected to the meter.*

Power cycle the meter and verify that the meter is still displaying the "OS Missing" message. If the message is still appearing on screen, then customer needs to upload the latest firmware on to the meter.
 
Please review the following steps for uploading the firmware on a CM4000 and PM800 series meter using DLF-3000 utility.

DLF-3000 can be downloaded from the following link:
DLF-3000 Download

Download the for latest firmware for the CM4000 and PM800 Series meters (.fw files) from FA237920. This article also has detailed walkthrough on how to use DLF-3000 to upgrade a meter's firmware.

Uploading firmware to CM4000:
 
  1. Using DLF-3000, download Download system (DL) to the device.
  2. Download Operating System (OS).
  3. Download Language Library (LL) if necessary.
  4. After the download is completed, you will see the meter resetting.
  5. You can verify the new firmware version by selecting "Diagnostics -> Meter Information" from the main menu of the meter display.
Note: If the DL version is up to date, it is only necessary to update the OS firmware.
 
Uploading firmware to PM800:
  1. Using DLF-3000, download Reset system (RS) to the device.
  2. Download DL.
  3. Download OS.
  4. After the download is completed, you will see the meter resetting.
  5. You can verify the new firmware version by selecting "MAINT -> DIAG -> METER" from the main menu of the meter display.
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