15
DISPLAY SYMBOLS (
see figure
)
Number
Meaning
1
Unit of Tachometer
2
Unit of Counts
3
Time
4
The battery is low.
5
Indicator of Sleep Mode
6
Measurement of RPM and Counts
7
Data Hold is on
8
Display of Maximum reading
9
Display of Minimum reading
10
Display of Average reading
11
USB is on
12
Display of Measurement reading
MEASUREMENT OPERATION
Warning!
- To reserve battery, the USB feature will be automatically off when the Meter is restarted.
The other setting remains unchanged.
- The Time will be off after the HOLD feature is enabled. The time will be on again after
existing HOLD mode.
A. RPM Measurement (see figure)
Warning!
- Do not point laser directly at eye.
- When carrying out measurement, the distance must be more than 50mm.
- To avoid hurt yourseolf or damage to the meter, do not let speedy rotary object to touch the
Meter.
To carry out RPM measuremnet, follow the following procedure:
1. Apply a piece of reflecting tape to the object under test.
2. Position the Meter on a flat place. Hold the Meter 50~200mm from the Tachometer light
source to the object under test.
