Fuse replacement, Fuse replacement …… 23, Ce enhancements for dbks – Measurement Computing WBK40 User Manual
Page 23: Ce compliance for wavebook system expansion, Caution

CE Enhancements for DBKs
The following CE enhancements are described in the individual document modules of the
DBK Cards and Modules User’s Manual (p/n 457-0905).
• DBK41/CE
• Edge Guard (for DBK5, DBK8, and DBK44)
• Applicable cables and connectors
CE Compliance for WaveBook System Expansion
WaveBooks, WBK40, WBK41, and other CE-designated WBK and DBK boards and modules are CE
Compliant at the time they leave the factory, and will remain in compliance providing that the required
conditions, as stated on the associated product’s Declaration of Conformity, continue to be met.
Note that connecting a non-CE Compliant DBK or WBK module or card to your system will make the
system non-compliant.
You may want to expand your WaveBook system while having it retain its status of “CE Compliant.” If
so, refer to the most recent Declaration of Conformity for each device, prior to making any efforts to
expand the system.
Fuse Replacement
CAUTION
Turn OFF the power to, and UNPLUG the WBK40 or WBK41 module and all
connected equipment. Remove all signal I/O lines from the unit. Electric shock or
damage to equipment can result even under low-voltage conditions.
Take ESD precautions, to include using a grounded wrist strap.
Use care to avoid touching board surfaces and onboard components. Ensure boards
do not come into contact with foreign elements such as oils, water, and industrial
particulate.
You should only replace a fuse if your device shows no sign of damage. If your device
appears damaged, such as evidenced by a “smoked” component, contact the factory as
soon as possible.
If the replacement fuse blows, contact the factory, as this indicates a problem may
exist with your WBK40 or WBK41 module.
Each WBK40 and WBK41 module has one user-replaceable fuse designated as F201.
F201 Input Power Fuse. 4.0 A, MINI ATO.
This 4-amp fuse is located near the rear panel’s 5DIN POWER IN connector.
If this fuse has blown, the WBK40 or WBK41 module will not power up.
Factory Part Number: FU-8-4
Littelfuse Part Number: 297-004, Littelfuse Body Color Code: Pink
Thermocouple & Multifunctional Modules
926896
WBK40 & WBK41, pg. 23