Users’ Manual
EDI-53 Series Digital Indicator
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coefficients for the transducer which you want to associate with this channel.
RAM DATA LOST
This error message also appears only during Power On Self Test.
Whenever the setup information is changed the changed information is stored back in the NVRAM and a
check sum is calculated and stored for checking the data integrity. If for any reason the stored ‘setup’
data gets corrupted you will get the above error message. Possible reasons include
•
The NVRAM module has been replaced by a new module.
•
The NVRAM module or the associated hardware has developed some fault.
•
The internal Lithium battery has exhausted (The NVRAM is a sealed module and the internal
battery can not be individually replaced).
When you get this error message clear the ‘Setup’ and ‘Data’ memory, reprogram (setup) a few of the
channels and try to operate the indicator. If the indicator functions normally then most probably the
NVRAM got corrupted due to a transient fault and you can ‘Setup’ the indicator again and make it ready
for use. However, if the indicator fails to operate even after executing the above procedure the indicator
probably needs servicing by a qualified technician.
Rnn: NO DATA!
Where nn is the channel number (from 000 to 500) whose data is being recalled. You are trying to recall
data for a channel but there is no logged data corresponding to that channel number. Unless you have
stored a valid reading earlier you cannot recall the data. Also if you are using the ‘PREV’ or ‘NEXT’ key
and get this message it means that there is no earlier or later data that which has already been
displayed.
RTC FAILED
This message appears during POST. The indicator has detected that the Real Time Clock has developed
some fault and is not functioning properly. However, this message will not appear if the RTC has been
stopped by using the ‘Stop RTC’ function described in the ‘Operation’ section.
