Instruction Manual

<6. Maintenance>

6-8

IM 11B08A01-01E

K9401JG

Figure 6.4 Pressure Switch for Detecting Internal Pressure

(2) Fuses

The fuses discussed here are installed in the power line to the protection system. They are

housed in the container of the protection system A on the right side.

(1) Stop the operation (See “3.3.4 Stopping operation” for this procedure).

(2) Stop the supply of power.

(3) Conﬁ rm that the LED (Green) of “POWER” is OFF.

CAUTION

The isothermal oven is extremely hot after turning off the power immediately. Keep the purging

air supplied for more than an hour after turning off the power. Keep hands away from the oven

components.

(4) Loosen the locknut on the cover for the protection system A on the right side and remove the

cover.

(5) The fuses are located on the front side, as shown in Figure 6.5.

(6) Use a ﬂ athead screwdriver to rotate the fuse holder cap counterclockwise and remove it

from the fuse holder.

(7) Replace the fuse in the fuse holder cap with a new one.

Fuse rating Dimensions: ø5.2 × 20 mm

Rated voltage: 250 V AC

Rated current: 1.25 A

Fusing time: Time-delay fusing type

(8) Conﬁ rm that the fuses are securely installed in the cap.

(9) Push the cap into the fuse holder until secured.

(10) Conﬁ rm that the cap is ﬁ rmly installed on the fuse holder.

(11) Install the cover on the protection system. Rotate the cover until it stops, then tighten the

locknut.

A1423EF

2nd Edition : May 11, 2012-00