Download LDP-3811 Programming Examples

MAINTENANCE
Fuse Replacement
CHAPTER
5
The operation complete flag (bit 0 of the Standard Event Status Register) may be
used to trigger an interrupt. This type of interrupt is enabled by setting bit 0 of the
Service Request Enable Register and using the *OPC command.
g
Repeat steps e and f for the lower calibration value (a 2-point calibration is done).
After the lower calibration point value is entered via the "LDI" command, the 3811 will
return to the state it was in prior to calibration.
h
Repeat this procedure for the other current output range.
If an error occurs during calibration, i.e. the interlock connections are opened, the
3811 will exit calibration mode without changing the calibration values. Error
events may be retrieved via the "ERR?" query, as explained in Step d. If an error
happens during calibration, fix the error and repeat the calibration procedure.
Fuse Replacement
The fuses are accessible from the back panel of the 3811 below the power entry
module. Before replacing the fuses, turn power off and disconnect the line cord.
Use only the fuses indicated below in Table 5.2.
Table 5.2 Fuse Replacement
09_10
Line Voltage
Fuse Replacement
100 / 120 VAC
1A, 250V, T
220-230 / 240 VAC
0.5A, 250V, T
LDP-3811
 109