297780
LC27122019
Spare Parts for Classic British Cars
L
imora central warehouse
Industriepark Nord 21
D - 53567 Buchholz
Tel: 49 (0) 26 83 - 97 99 0
E-Mail: [email protected]
Internet: Limora.com
Stores:
• Aachen • Berlin • Bielefeld
• Düsseldorf • Hamburg
• Köln • Stuttgart
Digital Tachometer
Instruction
Please read the following instructions carefully and always
keep this manual within easy reach.
1. Caution
WARNING:
Direct eye exposure to laser light source is harm
-
ful and should be prohibited in any case
Features:
• Measuring RPM is safe & accurate without attachment to
object.
• Wide measuring range & high resolution.
• Digital display gives exact RPM with no guessing or errors.
• Used the exclusive MICRO-COMPUTER LSI circuit and cry
-
stal time base to offer the high accuracy measurement &
fast measuring time.
• The last Value I max. Value I min. Value will be automatical
-
ly stored in memory and can be displayed by turn.
• The use of durable, long-lasting components,including a
strong, light weight ABS-plastic housing assures mainte
-
nance free performance for many years. The housing has
been carefully shaped to f it comfortably in either band.
Specifications
• Display:
5 digits, 10mm LCD (Liquid Crystal Display)
• Test Range:
6 - 99.999 RPM
• Resolution:
< 1000 RPM: 0.1 RPM
> 1000 RPM: 1 RPM
• Accuracy:
+/- 0,05% of r 1 digit
• Sampling Time:
1 second ( over 60 RPM )
• Range Selection:
automatic
• Data Memory
Last value, max. value, min. value
• Detecting Distance:
50 mm to 250 mm / 2 to 10 inch (typical max.
350mm / 14 inch)
• Power Supply:
4 x 1,5 Volt AA ( UM-3 ) batteries
• D.C Consumption: Approx. 80 mA
•
Operation Temp.:
0 to 50°C (32 to 122°F)
•
Size:
202 x 84 x 43 mm
• Weight:
about 260g (including batteries )
Measuring procedure:
Apply a reflective mark to the object being measured. De
-
press the MEASURE BUTTON and align the visible light beam
with the applied target, verify that the MONITOR INDICATOR
lights when the target aligns with the beam (about I to 2se
-
conds).
Cut and peel adhesive tape provided into approx. 12mm
(0.5“) squares and apply one square to each rotation shaft.
a.
The non-reflective area must always be greater than the
reflective area.
b.
If the shaft is normally reflective, it must be covered with
black tape or black paint before attaching reflective tape.
c.
Shaft surface must be clean and smooth before
applying reflective tape.
Very low RPM measurement:
As it is easy to get high resolution and fast sampling time,
if measuring the very low RPM values, suggest the user to
attach more
„REFLECTIVE MARKS“ averagely.
Then divided the reading shown by the number of
„REFLECTIVE MARKS“ to get the real RPM.
Memory:
A readout (the last Yalue, max. Value, min. Value)
obtained immediately before tuming off the MEASURE BUT
-
TON is automatically memorized. For example, please ref.
following.
That Memorized value can be displayed on the indicator by
turn once depressing the memory button.
The symbol „UP“ represents the Max. value and „dn“ the
Min. Value; „LA“ , The last value.
