24 | ESP302-GPIB-ADPT
A1387A0-EDH0429En1010 11/21
USER's MANUAL
5 Maintenance
5.1 Maintenance
The ESP302-GPIB-ADPT does not require periodic calibration and has no internal adjustments.
However, if it is used in an application where the IEEE-488 bus cables are frequently changed,
the ESP302-GPIB-ADPT's IEEE-488 Bus Connector may occasionally require cleaning to remove
wax and dirt buildup. New bus connectors are sometimes shipped with a brightener (thin wax like
film) on them. Depending upon usage, enough of the brightener may buildup on the ESP302-
GPIB-ADPT's bus connector to cause intermittent operation.
The brightener is an organic compound and may be cleaned off by washing the connector with a
mild detergent solution followed by an alcohol wash.
5.2 Troubleshooting
Table below lists several common fault indications and suggests actions that can be done to either
clear the fault or isolate the problem to a faulty piece of equipment.
Troubleshooting guide
Symptom
Possible Fault
Action or Check
Unit will not turn on
Power cord not plugged in
Push power cord into DC receptacle
Power at AC outlet
Check outlet and power adapter
Adaptor polarity
Unit re polarity center pin
Unit shows blinking LEDs
Self-test fault
Refer to Self-Test errors in Table 3
Unit does not respond to
commands
Unit received an invalid
command
Search host program for command error. Check
ERR Led and query the ESR Register if the ERR
Led is on
5.3 Repair
CAUTION
Never attempt to open the ESP302-GPIB-ADPT cover.
If you observe a malfunction in your adapter, please contact us immediately to arrange for a
repair.
CAUTION
Any attempt to open or repair a ESP302-GPIB-ADPT without prior
authorization will void your warranty.