Kerotest Shannon Portafuse III, Руководство оператора

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Kerotest Manufacturing – SHANNON & PAF III OPERATORS MANUAL - REV 3
Page 49 of 60
General Maintenance
Changing the Fuse (AC Processors Only)
Important Notes
• The fuse protects the internal electronic circuitry. If the display lights up when power is turned on,
you DO NOT need to replace the fuse.
• This procedure should only be performed in a “shop” environment, never a “field” environment.
• The most probable cause of a fuse failure is a defective or inappropriately sized generator. If you
have a fuse problem, check your generator first.
Tools Required
• 1/8” Flat Blade Screwdriver
• 5 X 20mm, 250V, 2 Amp Slow Blow Fuse.
Use a Cooper Bussmann Fuse Part Number BK1/S506-2-R or equivalent.
Procedure
1. Insert a screwdriver into the slot in the fuse holder cap. Press in slightly, while turning counter-
clockwise, then remove the cap. The fuse should come out when the cap is removed.
2. Remove the old fuse and replace it with the new one.
3. Replace the fuse cap by pushing down and turning it clockwise.
AC Power Sources
When installing electrofusion fittings in field applications, it is necessary to have a reliable source of AC power
for the electrofusion processor. This AC power source should:
• be well maintained and subjected to a periodic maintenance schedule.
• provide output voltage within the specified operating range.
• contain a matching outlet, which is required to connect with the plug equipped on the processor:
o
115V models — 30 Amp, 125 Volt, NEMA L5, twist-lock
Utility Power
Utility power is a reliable and ideal source of energy for AC Powered Electrofusion Processors . However, it is
not always practical to access this kind of power source in field applications. When fusing with utility power, a
dedicated connection to the service panel is recommended because the potential amperage draw is very high.