Omron H3CR-A Manual page 293

H3BA
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. Dial digits appear in the six windows around the time setting knob
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
0.5
1
5
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 it is secured. Do not set it midway between two securing posi-
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.
Dial digits
0, 0.1, 0.2. 0.3, 0.4, 0.5
0, 0.2, 0.4, 0.6, 0.8, 1.0
0, 1, 2, 3, 4, 5
0. 2. 4. 6. 8. 10
!
Caution
Do not change the time unit, or operation mode while the Timer
is in operation. Otherwise, the Timer may malfunction or suffer
from damage. Be sure to turn off the power supply of the Timer
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
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 Timer while pow-
er is being applied to the Timer.
H3BA
A
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