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H3DR-A/P/M
H3DR-A/P/M
75
I/O Functions
H3DR-A/-AS/-AP/-ASP
Inputs
Start
Starts time-measurement.
Reset
Interrupts time-measurement and resets preset time-measurement value. No time-measurement is
made and control output is OFF while the reset input is ON.
Gate
Prohibits time-measurement.
Output
Control output
Outputs are turned ON according to designated output mode when preset value is reached.
H3DR-P/-PP
Input
Start
Starts time-measurement.
Output
Control output
Output is turned ON according to designated output mode when preset value is reached.
H3DR-M
Input
No input is available.
Output
Control output
Output is turned ON when preset value is reached.
Basic Operation
H3DR-A
j
/-AS
j
/-P
j
Setting of Selector
The selectors can be turned clockwise and counterclockwise to se-
lect the desired time unit, time scale, or operating mode.
Each selector has a snap mechanism that secures the selector at a
given position. Set the selector at a position at which it is secured.
Do not set it midway between two securing positions or a malfunc-
tion could result from improper setting.
A
Operating
mode selector
Groove for
screwdriver
Operating
mode display
window
Selection of Operating Mode
Turn the operating mode selector with a screwdriver until the de-
sired operating mode (A, B, B2, C, D, or E) appears in the display
window located below the selector.
Selection of Time Unit and Time Scale
The desired time unit (s, m, h, or 10h) can be displayed in the win-
dow above the time setting dial by turning the time unit selector lo-
cated at the upper right corner of the front panel. Time scale (0.1 or
1) is selected with the time scale selector at the upper left corner of
the front panel, it appears in the window above the selector.
Scale range
selector
Scale range
display window
Time unit selector
Time unit display
window
Setting of Time
The desired time is set with the time setting dial. This time can be
fine-tuned by adjusting the fine-tuning dial (the reduction ratio of the
fine-tuning dial is 1:6). The fine-tuning dial is useful when delicate
and more accurate adjustment is required.
Fine-tuning dial
Time setting
dial
H3DR-M
The H3DR-M does not incorporate a scale range selector, operating
mode selector, or fine-tuning.