Users’ Manual
EDI-53 Series Digital Indicator
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1
INTRODUCTION
EDI-53 Digital Indicator with engineering units display is a microprocessor-based indicator for use with
Encardio-rite’s range of potentiometric displacement transducers, resistive strain gage load cells and 4-
20 mA DC current output transducers.
The EDI-53 indicator can store calibration coefficients of up to 500 transducers so that the value of the
measured parameter from these transducers can be shown directly in proper engineering units. The user
does not have to refer to look up tables or manually calculate the parameter values.
The indicator has an internal non-volatile memory with sufficient capacity to store about 3600 readings
from any of the 500-programmed transducers in any combination. You can store either 6700 readings
from any one transducer or 14 sets of readings from all 500 transducers. Each reading is stamped with
the date and time the measurement was taken.
The stored readings can either be uploaded to a host computer using the serial interface or can be
printed out on any text printer equipped with a RS-232C serial communications interface. The setup
information (calibration coefficients) for all the channels can also be printed out for verification.
Setting up the EDI-53 indicator is easy as all the prompts and error messages are in plain simple English
language. Power on self-tests and a separate test mode operation for more detailed diagnostics are an
added advantage.
An internal 6V rechargeable sealed maintenance free battery is used to provide power to the indicator. A
fully charged new battery provides nearly 60 hours of operation on a single charge. A separate universal
battery charger is provided with the EDI-53 digital indicator that can charge the internal battery from AC
mains available world wide (90 to 270 V AC, 50 / 60 Hz).
The EDI-53 indicator is housed in a splash proof plastic moulded enclosure with weatherproof connectors
for making connections to the transducer, host computer and the battery charger.
1.1
Known issues
When power is turned ON the display may briefly flash ”Err: ADC FAULT" as the internal ADC takes
some time to settle down. This is normal behaviour and does not affect the functioning or calibration of
the unit in any way.
If, however, the "Err: ADC FAULT" message continues to remain on display or is seen during any other
time there may be some internal fault. Please see the paragraph below the section titled "Err: ADC
FAULT" in chapter 8 – Error Messages for details.
