Sutter Instrument Lambda DG-4Plus/USB, Operation Manual

Page: 81 / 98

LAMBDA DG-4 & 5 PLUS/USB OPERATION MANUAL – REV.
1.01B3
(
20190607
)
69
APPENDIX C. FUSE REPLACEMENT
In the event that the lamp fails to power up when the power switch is turned on, please
check to see if the line power fuse has blown. The fuse is located in a pry-out holder on the
power entry module on the back of the lamp (see Figure 3-2 on Page 16). To remove the fuse
holder first unplug the power cord from the power entry module. This will reveal a slot just
under the edge of the fuse holder. Use a screwdriver to pry the holder straight out of the
power entry module.
Figure 5-8. Fuse replacement.
The fuse that is readily visible in the fuse holder when you take it out is the one that is
“active” when the holder is installed. A spare fuse is also stored within the fuse holder. It is
concealed in a compartment as shown in the figure. To remove the spare fuse, press down on
the end of the compartment and push it out of the other end. The old fuse can serve as a
convenient tool for pushing the spare fuse compartment out. Replace the active fuse with the
spare and re-install the fuse holder and power cord. If the lamp fails to power up with the
new fuse installed, call Sutter Instrument technical support personnel for assistance.
The value of the fuse required is a function of both the line voltage and wattage of the bulb in
the Lambda DG-4. The following table gives the correct fuse values. The fuse supplied with
the unit is the correct value for the unit as configured if the destination country was known
at the time the lamp was ordered. All fuses are “time delay” or “time lag” type, with a glass-
tube construction, and with a physical size of 5mm x 20mm. Specific fuse ratings depend on
the power of the xenon lamp used in the Lambda DG-4/5, as indicated in the following tables.