H3BF
H3BF
311
Installation
Connection
Precautions
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
Time unit selector
Dial digit display
windows
Rated time
selector
Time unit display window
Switch Setting
The selector switches for time unit, scale, and function can be
turnedinbothdirections,clockwiseandcounterclockwise. Eachse-
lectorswitchhas asnap mechanismthat securestheswitchat agiv-
enposition. Setthe switchat a position atwhichit is secured. Donot
set it midway between two securing positions because such prac-
ticemaycauses theTimertomalfunctionor,intheworstcase, 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.
WARNING
Electrical Shock Hazard
Never touchthe input terminals ofany H3BGTimerwhilepow-
er is being applied to the Timer.
!
!
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