Replace Fuse in Temperature Controller

A fuse block is located in the input power connector on the back of the temperature controller. A single or double fuse arrangement can be used depending on the power source.

Power Source Fuse
100-120 VAC Use one 5 Amp, slow-blow
200-240 VAC Use two 3.15 Amp, 5 × 20 mm, slow blow
 

The fuses used in the temperature controller must be identical in type and rating to those specified. Use of other fuses could result in electrical shock and/or damage to the unit.

  1. Power off the temperature controller and disconnect the power cord. The cover of the input power connector cannot be opened when the power cord is installed.
  2. Insert the tip of a small screwdriver into the top of the power module. Gently pry the cover open.

  1. The cover is hinged and cannot be removed. Gently grasp the bottom of the cover and swing it upward.
  2. Hold the cover open and remove the fuse block. Needle-nose pliers may make removal easier.

  1. Replace the blown fuse.
  2. Re-insert the fuse block into the input power connector.
    • Single fuse arrangement. Position the fuse block so that the single-fuse slot and the jumper bar are away from the cover.
    • Double fuse arrangement. Position the fuse block so that the double-fuse slots are away from the cover.
  3. If using the single fuse arrangement, snap the fuse block into place, then close the cover. If using the double fuse arrangement, the block will not snap into place. Position the fuse block in the proper orientation to seat it properly.
  4. Reconnect the power cord and power on the temperature controller. Allow at least four hours for the manifold temperature to stabilize.
 

Do not adjust the manifold temperature to speed the process. If the manifold temperature is changed, recalibration by a Micromeritics Service Representative is required.

 
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