Sealey TA050 - Manual

INSTRUCTIONS FOR:
DIGITAL TACHOMETER
(CONTACT / NON-CONTACT)
MODEL No:
TA050
1. SAFETY
2. INTRODUCTION
1.1. GENERAL SAFETY

WARNING! Ensure that Health & Safety, local authority and
general workshop practice regulations are adhered to when using
this equipment.

WARNING! DO NOT aim the laser beam at your or another person’s
or animal’s eye and beware of reflections from mirrors or other shiny
surfaces.
 Familiarise yourself with the applications, limitations, and potential
hazards of the tachometer.

Keep the tachometer clean and in good condition.

Protect the tachometer from electro-magnetic fields, static
electricity and high temperatures.

Remain vigilant when using the tachometer on, or near, a running
engine where there are rotational parts such as belts, pulleys and
fans.

Maintain correct balance and footing. Ensure the floor is not
slippery and wear non-slip shoes.

Remove ill fitting clothing. Remove ties, watches, rings, and other
loose jewellery, and contain and/ or tie back long hair.

DO NOT wear gloves near rotational parts.

DO NOT get the tachometer wet or use in damp or wet locations
or areas where there is condensation.

DO NOT use the tachometer for any purpose other than for which
it is designed.

DO NOT allow untrained persons (particularly children) to operate
the tachometer.

DO NOT operate the tachometer when you are tired or under the
influence of alcohol, drugs or intoxicating medication.
SPECIFICATION
Rotational Speed - Contact: . . . . . . . . . . . . . . . . . . . . . . 2 - 20,000rpm
Rotational Speed - Non-contact: . . . . . . . . . . . . . . . . . . . 2 - 99,999rpm
Total Revolutions: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 99,999
Sampling Time: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5s @ > 120rpm
Accuracy: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±(0.05% + 1 digit)
Surface Speed: . . . . . . . . . . . . . . . . . . . . . . . . . . m/m, in/m, ft/m, yd/m
Distance: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . m, in, ft, yd
Frequency:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hz
Battery: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PP3
External Power: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6VDC
Laser Output: . . . . . . . . . . . . <1mW, Wavelength 630-670nm Class ll
Professional quality laser instrument for fast and accurate
measurement of rotational speed with or without contact. Will also
measure total revolutions, frequency, surface speed and distance.
Ten selectable data set memories each with maximum, minimum,
and average or single value reading as appropriate. Supplied with
reflective tape, for non contact measurement, and three heads for
contact measurement. Powered by 9V battery (supplied) and has
jack socket for 6V DC supply.
fig.1
1.2. LASER SAFETY
The TA050 utilises a Class II laser that emits low levels of
visible radiation (i.e. wavelengths between 400 and 700
nanometres) which are safe for the skin but not inherently safe
for the eyes. The Class II emission limit is set at the maximum
level for which eye protection is normally afforded by natural
aversion responses to bright light. Accidental eye exposure is
therefore normally safe, although the natural aversion response
can be overridden by deliberately staring into the beam, and
can also be influenced by the use of alcohol or drugs.

WARNING! Do not look or stare into the laser
beam as permanent eye damage could result.
 DO NOT direct the laser beam at any person’s (or
animal’s) eyes as eye damage could result.

DO NOT operate the tachometer when you are
tired or under the influence of alcohol, drugs or
intoxicating medication.
 Be aware that reflections of the laser beam from mirrors or
other shiny surfaces can be as hazardous as direct eye
exposure.
3.1. BATTERY
The battery cover is on the back of the unit. Remove the
screw at the base of the battery cover and lift off the cover.
Connect the supplied PP3 battery and place it into the
compartment. Replace the cover and secure it with the screw.
3.2. MEASUREMENT SELECTION
There are two measurement groups to choose from as
shown below:
3.2.1. GROUP ONE
RPM Non-contact revolutions per minute
rpm Contact revolutions per minute
HZ Contact frequency
M/M Contact meters per minute
I/M Contact inches per minute
F/M Contact feet per minute
Y/M Contact yards per minute
3.2.2. GROUP TWO
REV Revolutions
M Length in meters
In Length in inches
FT Length in feet
Yd Length in yards
3. OPERATION
Original Language Version
IMPORTANT: PLEASE READ THESE INSTRUCTIONS CAREFULLY. NOTE THE SAFE OPERATIONAL REQUIREMENTS, WARNINGS & CAUTIONS. USE THE
PRODUCT CORRECTLY AND WITH CARE FOR THE PURPOSE FOR WHICH IT IS INTENDED. FAILURE TO DO SO MAY CAUSE DAMAGE AND/OR
PERSONAL INJURY AND WILL INVALIDATE THE WARRANTY. KEEP THESE INSTRUCTIONS SAFE FOR FUTURE USE.
Thank you for purchasing a Sealey product. Manufactured to a high standard, this product will, if used according to these
instructions, and properly maintained, give you years of trouble free performance.
TA050 Issue No: 3(L) - 04/08/14
© Jack Sealey Limited