Measurement Computing WBK Options - Manual (Page 136)

Fuse Replacement – for WBK18
CAUTION
Turn OFF the power to, and UNPLUG the WBK18 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 WBK18 module.
Each WBK18 has one user-replaceable fuse designated as F900.
F900 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 WBK18 module will not power up.
Factory Part Number: FU-8-4
Littelfuse Part Number: 297-004, Littelfuse Body Color Code: Pink
You will need the following:
Phillips Screwdriver •
•
•
•
3AG Fuse Puller, or needle-nose pliers*
Grounding wrist strap and associated anti-static pad
Replacement fuse F900
* Needle-nose pliers can be used to pull MINI ATO fuses; but should not be used to insert fuses.
WBK18, Dynamic Signal Input Module 926896 WBK18, pg. 21