Sealey TA050 User manual

INSTRUCTIONS FOR
DIGITAL TACHOMETER CONTACT/NON-CONTACT
MODEL NO: TA050
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.
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.
1. SAFETY
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.
9Familiarise yourself with the applications, limitations, and potential hazards of the tachometer.
9Keep the tachometer clean and in good condition.
9Protect the tachometer from electro-magnetic fields, static electricity and high temperatures.
9Remain vigilant when using the tachometer on, or near, a running engine where there are rotational parts such as belts, pulleys and fans.
9Maintain correct balance and footing. Ensure the floor is not slippery and wear non-slip shoes.
9Remove ill fitting clothing. Remove ties, watches, rings, and other loose jewellery, and contain and/or tie back long hair.
8DO NOT wear gloves near rotational parts.
8DO NOT get the tachometer wet or use in damp or wet locations or areas where there is condensation.
8DO NOT use the tachometer for any purpose other than for which it is designed.
8DO NOT allow untrained persons (particularly children) to operate the tachometer.
8DO NOT operate the tachometer when you are tired or under the influence of alcohol, drugs or intoxicating medication.
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inuencedby
the use of alcohol or drugs.
WARNING! DO NOT look or stare into the laser beam as permanent eye damage could result.
8DO 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.
9Be aware that reflections of the laser beam from mirrors or other shiny surfaces can be as hazardous as direct eye exposure.
2. i INTRODUCTION
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.
3. i 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
Original Language Version
© Jack Sealey Limited
Refer to
instruction
manual
Electrical Shock
Hazard
Laser
Avoid Eye
Contact
fig.1
TA050 Issue 5 (H,3,4,F) 02/03/18

4. OPERATION
4.1. 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.
4.2. MEASUREMENT SELECTION
There are two measurement groups to choose from as shown below:
4.2.1. 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
4.2.2. GROUP TWO
REV Revolutions
M Length in meters
In Length in inches
FT Length in feet
Yd Length in yards
4.2.3. Press the MEAS button once to turn the unit on. To switch from one measurement group to the other hold down the MODE button for
three seconds. The display will alternate between RPM (Group one) and REV (Group two). Release the button when the display shows
the group you require. Press the MODE button repeatedly to cycle through the options in each group (as shown overleaf) until you reach
the required measurement.
4.3. NON-CONTACT MEASUREMENT
4.3.1. In order to do a non-contact measurement the rotating object must have a segment of reflective, self adhesive tape attached to it. The
tape should be attached as close to the outer edge of the object as possible. Cut a 1/2” square from the tape provided and apply to the
object.
4.3.2. To obtain an accurate reading the non-reflective area must always be greater than the reflective area.
4.3.3. If the whole object, such as a shaft, is normally reflective it must be covered in black tape or painted black before the reflective tape is
applied.
4.3.4. When measuring very low rpm it may be necessary to apply several reflective marks equally around the circumference of the object.
When a reading is taken it should then be divided by the number of reflective marks in order to get a true reading.
4.3.5. TO TAKE A READING. Hold the unit about 6” (15cm) from the rotating object. Press and hold the MEAS button and direct the red spot of
the laser beam onto the rotating object in the area where the self adhesive tape was applied. After about 4 seconds the scanning symbol
will be shown at the top of the display (See fig.3) and a reading will appear in accordance with the units of measurement previously selected.
To store the value(s) press the MEM button once whilst the MEAS button is still held down. For more information refer to 4.5 DATA STORAGE
and 4.6 DATA RECALL.
4.4. CONTACT MEASUREMENT
4.4.1. Screw the contact adaptor into the front aperture of the tachometer as shown in fig.2-A.
4.4.2. Choose one of the contact drivers shown in fig.2-B and push it onto the adaptor shaft ensuring that the slots in the driver pass over the
drive pin in the end of the adaptor shaft.
4.4.3. Before using the tachometer in a contact situation do a risk assessment in the area you will be working in to ensure that you will not
inadvertently come into contact with any other moving parts whilst taking the reading you require.
4.4.4. TO TAKE A READING. Press and hold down the MEAS button and bring the rubber part of the driver gently into contact with
the moving object. After about 4 seconds the scanning symbol will be shown at the top of the display (See fig.3) and a reading will appear in
accordance with the units of measurement previously selected. To store the value(s) press the MEM button once whilst the MEAS button is still
held down.
4.5. DATA STORAGE
4.5.1. To store the value(s) shown on display press the MEM button once whilst the MEAS button is still held down.
4.5.2. The reading will be stored in one of ten data set locations. One data set consists of a MAX data figure, a MIN data figure, and an
AVERAGE data figure. Only measurements that can vary (such as RPM) will record as a set. Non variable measurements such as REV
will only record as a single figure. See fig.4.
4.5.3. Once data set ‘0’ has been used the system will automatically advance to the next available memory location. When all ten
locations are full (0 to 9), new sets of data will begin to overwrite the original readings.
fig.2
fig.3 fig.4
Original Language Version
© Jack Sealey Limited TA050 Issue 5 (H,3,4,F) 02/03/18

4.6. DATA RECALL
4.6.1. Press the MEAS button once to turn the unit on. Press the MEM button once to display the current memory location in the bottom right hand
corner of the display.
4.6.2. If no data has been recorded for this location, another press of the button will advance the display to the next memory location.
4.6.3. When a memory location that contains data is selected the reading will show in the centre of the display and the appropriate unit of
measurement will be shown at the top of the display.
4.6.4. If maximum, minimum and average figures have been recorded for a variable unit of measurement such as RPM, the first measurement
will be displayed with the word MAX appearing at the bottom of the display. Press the MEM button again to see the MIN measurement
and press the button again to see the AVG measurement. See figs. 5, 6 & 7. The next press of the MEM button will advance the display to
the next memory location.
4.6.5. If no buttons are pressed for 15 seconds the unit will automatically switch off.
fig.5 fig.6 fig.7
WEEE REGULATIONS
Dispose of this product at the end of its working life in compliance with the EU Directive on Waste Electrical and Electronic Equipment
(WEEE). When the product is no longer required, it must be disposed of in an environmentally protective way. Contact your local solid
waste authority for recycling information.
BATTERY REMOVAL - REFER TO SECTION 4
Under the Waste Batteries and Accumulators Regulations 2009, Jack Sealey Ltd are required to inform potential purchasers of products
containing batteries (as defined within these regulations), that they are registered with Valpak’s registered compliance scheme. Jack
Sealey Ltd Batteries Producer Registration Number (BPRN) is BPRN00705.
ENVIRONMENT PROTECTION
Recycle unwanted materials instead of disposing of them as waste. All tools, accessories and packaging should be sorted, taken to
a recycling centre and disposed of in a manner which is compatible with the environment. When the product becomes completely
unserviceable and requires disposal, drain any fluids (if applicable) into approved containers and dispose of the product and fluids
according to local regulations.
Note: It is our policy to continually improve products and as such we reserve the right to alter data, specifications and component parts without prior
notice.
Important: No Liability is accepted for incorrect use of this product.
Warranty: Guarantee is 12 months from purchase date, proof of which is required for any claim.
Sealey Group, Kempson Way, Suffolk Business Park, Bury St Edmunds, Suffolk. IP32 7AR
01284 757500 01284 703534 [e-mail] www.sealey.co.uk
TA050 Issue 5 (H,3,4,F) 02/03/18
Original Language Version
© Jack Sealey Limited
Parts support is available for this product. Please email [e-mail] or telephone [phone]