H3BA
H3BA
293
Precautions
How to Change Rated Time
Turn the operation mode selector (i.e., rotary switch) with a flat-
blade screwdriver or an Allen wrench until the desired operation
mode (A, B, C, or D) appears in the display window located below
the selector.
How to Change Time Unit and Rated Time
The desired time unit (sec, min, hrs, or 10 h) can be displayed in the
window below the time setting knob by turning the time unit selector
(i.e., rotary switch) located at the lower right corner of the front pan-
el.Dialdigitsappearinthesix windowsaroundthetime settingknob
according to the rated time selected by turning the rated time selec-
tor (i.e., rotary switch) located at the lower left corner of the front
panel.
The following digits will appear in the respective dial digit display
windows:
Rated time
Dial digits
0.5 0, 0.1, 0.2. 0.3, 0.4, 0.5
1 0, 0.2, 0.4, 0.6, 0.8, 1.0
5 0, 1, 2, 3, 4, 5
10 0. 2. 4. 6. 8. 10
Switch Setting
The selector switches for time unit, rated time, and operation mode
selection can be turned in both directions, clockwise and counter-
clockwise. Each selector switch has a snap mechanism that se-
cures the switch at a given position. Set the switch at a position at
which itis secured. Donot set itmidway between twosecuringposi-
tions because such practice may causes the Timer to malfunction
or, in the worst case, break down.
Accurately move and set the scale selector switch, matching the 0
position mark to a division on the scale.
Caution
Donotchangethetime unit,oroperationmodewhiletheTimer
is inoperation. Otherwise, theTimermaymalfunction or suffer
from damage.Be sureto turnoff thepower supply of theTimer
before changing the time unit, rated time or operation mode.
How to Mount Timer on Mounting Track
When mounting a H3B Timer on a socket mounting track, observe
the following procedures:
Mounting
First hook portion A of the Timer to an edge of the track and then
depress the Timer in the direction of B.
B
A
Dismounting
Pull out portion C with a round-blade screwdriver and remove the
Timer from the mounting track.
C
WARNING
Electrical Shock Hazard
Never touch the input terminals of any H3BA Timerwhile pow-
er is being applied to the Timer.
!
!
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