5
Non-Contact Digital Tachometer
4 . O p e r a t i o n I n s t r u c t i o n
1. Before you start to use the meter cut out a part of the reflective marker and
attach it to the object which is under test. Then start this rotating object.
(Make sure to stop the rotating object before attaching the reflective marker).
4.1. Key
1. First remove the meters protective sensor cover.
2. Press the
key to turn the power ‘ON’.
3. The LCD will display ‘‘0
0..0
0’’ as the current value and ‘‘rrp
ps
s’’ (rotations per second)
by default.
4. Measuring: Keep pressing the
key to activate the laser beam.
W a r n i n g !
DO NOT look directly into the red laser beam or point it at other
peoples eyes.
5. Line the laser beam up to the position where the rotating objects affixed with
a reflective marker and maintain the fixed location. Adjust the distance
between the instrument and rotating body to 10 to 40cm, the distance is
based on the reliable and stable value which can be read by the instrument.
At this point you can read the speed of the rotating body.
6. Once the reading has become stable release the key and the LCD will
maintain the value last measured by displaying the ‘HOLD’ symbol.
N
NO
OT
TE
E:: There is no key for power off. When the meter is not used for 2 minutes
the meter will automatically shutdown.
4.2. Unit key
This key sets the type of rotary speed required for testing.
1. When the meter is switched ‘on’ press the U
UN
NIIT
T key to change between the 2
speed type settings available for measuring. These units are:
rrp
ps
s = revolutions per second (Default) and rrp
pm
m = revolutions per minute.
2. B
Ba
ac
ck
k lliig
gh
htt ffu
un
nc
cttiio
on
n:: By holding down on the U
UN
NIIT
T key for 2 seconds the back
light will be turned ‘on’. Press the key U
UN
NIIT
T key for 2 seconds again and the
back light will be turned ‘off ’.
If the back light is not turned off within 60 sec. it will turn off automatically.
This will save battery power.
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