Measuring Rotational Speed - Hioki MEMORY HiLOGGER LR8450 Instruction Manual

Measuring rotational speed

This section describes how to measure the pulses output by a rotary encoder, tachometer, or
similar device.
The instrument counts the number of pulses per second and calculates the rotational speed.
This section describes how to configure settings on the individual settings screen when measuring
rotational speed.
You can use the settings list screen to configure the settings. (See p. 5 2.)
External control terminals: Pulse input terminals P1 to P8
> >
1
Select [Pulse], and choose a channel from
Measurement will not be performed for channels whose checkboxes are not selected.
2
Select the waveform display color.
× (OFF), 24 colors
[×]
Select if you wish to measure the channel but not to display its waveform or numerical values on the
screen.
3
Set the input type to [RevSpd].
4
Under [Range], select the count base time.
r/s

r/min
5
Under [Pulse/rev], enter the number of pulses per revolution output by the encoder or
tachometer.
1 1000
 to
6
Under [Slope], select the slope to count.
↑

↓
Unit Measure
1 1
3 3
4 4
5 5
9 9
Counts the number of pulses per second and calculates the rotational speed. (Number
of revolutions per second)
Counts the number of pulses per module of time specified with the
setting and calculates the rotational speed.
(Number of revolutions per minute)
Integrates the number of times the pulse switches from low level to high level (rising).
Integrates the number of times the pulse switches from high level to low level (falling).
Channel Trigger
2 2
[P1] to [P8].
Alarm Calculation System
Configuring Input Channels
6 6
7 7
8 8
[Smoothing]
31
1