UNI-T UT90A Specifications download pdf (Page 20)

Model UT90A: OPERATING MANUAL

20

1O

Open circuit voltage is

about 3V; Set the

resistance of a open

circuit> 100O, buzzer will

not sound; Set the

resistance of a well

connected circuit=10O,

buzzer sounds

continuously.

Remark:

?Overload Protection: 230V rms.

Fuse Replacement(see figure 9)

Warning

To avoid electrical shock or injury to the user

because of wrong readings of the Meter,

please inspect the damage of fuse inside

when there is not any response on the

display during current measurement. Replace

the damaged fuse with identical model

number or electrical specifications.

To replace the fuse as follows:

1. Turn the Meter to OFF position, and remove

the test leads from terminals.

2. Take off the holster as figure 9 shows.

3. Remove the 3 screws from the case bottom,

separate the case bottom, then replace the

damaged fuse.

MAINTENANCE

This section provides basic maintenance

information including battery replacement

instruction.

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