GTC TA105 User manual

1. GENERAL SAFETY RULES
Read all instructions. Failure to follow all
instructions listed below may result in
hazardous radiation exposure, electric
shock, re, and/or serious injury.
• CAUTION—use of controls or adjustments or performance
of procedures other than those specied herein may result
in hazardous radiation exposure.
• DO NOT operate this instrument in areas where there is risk
of re or explosion, like in the presence of ammable liquids,
gases, dust, etc.
• DO NOT disassemble the instrument. There are no user
serviceable parts inside. Disassembling the instrument will
void all warranties on the product.
• DO NOT modify the instrument in any way. Modifying the
instrument may result in hazardous laser radiation exposure.
• To ensure that the instrument is used safely, follow all safety
and operating instructions in this manual. If the instrument
is not used as described in this operation manual, the safety
features of this device may be impaired.
• To avoid personal injuries and damage to the instrument, use
extreme caution when working around hot machine or engine parts,
such as radiators, exhaust manifolds, catalytic converters, etc.
• Repair and servicing must always be performed by qualied
repair personnel. Repairs performed by unqualied personnel
could result in serious injury.
• This instrument is designed for indoor use at temperatures
between 32°F and 122°F (0°C to 50°C), altitudes up to 6500
ft. (2,000 m), and 10% to 90% relative humidity.
2. LASER SAFETY RULES
This label is on your
laser instrument
for your safety.
ALWAYS BE AWARE
of its location when
using the tool.
DO NOT direct the laser beam at persons or
animals and do not stare into the laser beam
yourself. This tool produces class 2 laser
radiation and complies with 21 CFR 1040.10 and
1040.11 except for deviations pursuant to Laser
Notice No. 50, dated June 24, 2007. This can lead
to persons being blinded.
Working safely with this instrument is possible only when the
operating and safety information are read completely and the
instructions contained therein are strictly followed.
• Never make the warning labels on the instrument unrecognizable.
• Never aim the beam at a workpiece with a reective surface.
• Mirrors or similar reective surfaces are not recommended for laser
use, as these could reect the beam back towards the operator.
• Do not point the laser beam at persons or animals and do not look
into the laser beam yourself, not even from a long distance.
• Do not use laser viewing glasses as safety goggles, because they
do not protect against laser radiation.
• Do not allow children to use the measuring tool without supervision.
They could unintentionally blind other people.
• ALWAYS: Make sure that any bystanders in the vicinity of use are
made aware of the dangers of looking directly into the instrument.
TA10 5
IEC60825-1:2007-03
<1 mw @ 635 nm
Laser radiation. Do not stare
into beam. Laser class 2 product complies
with 21 CFR 1040.10 and 1040.11 except
for deviations pursuant to Laser Notice No.
50, dated June 24, 2007.
!WARNING
3. TECHNICAL SPECIFICATIONS
3.1 General Specications
Display: 5-digit LCD, with measuring unit, low
battery and laser on target indicators.
Resolution: ±(0.05%+1 Digit)
Operating temperature: 32°F to 122°F (0°C to 50°C)
Response time: 0.5 seconds (over 120 RPM)
Range selection: Auto ranging
Memory: Maximum, minimum, and display
hold.
Distance to target: 2” to 20” (50 mm to 500 mm)
Laser class: 2
Laser type: < 1 mW @ 635 nm
Power source: 4 AA 1.5 V alkaline batteries 1.5 V
UM3 or equivalent
Battery life: Approx. 5 hours (w/alkaline batteries)
Dimensions: 6.3”x 2.8”x 1.5” (160 x 72 x 37 mm)
Weight: 6.96 oz. (200 g) including batteries
Accessories: User’s manual, 3 x 20 cm self-adhesive
reective tape, soft pouch, and 4 AA 1.5
V alkaline batteries
3.2 Measurement Specications
•Accuracies are ±(% of reading + number of least signicant digits)
at 23°C ±3°C (73°F ± 6°F) ambient temperature, with less than 75%
relative humidity.
4. OPERATION
!CAUTION
Use of controls or adjustments or performance of procedures other
than those specied herein may result in hazardous radiation exposure.
4.1 Instrument Description
1) Laser/optics aperture
2) Measurement button
3) Function switch
4) MEM button
5) LCD display
6) Battery cover (back)
Function Range Acuracy Resolution
RPM
2.5 to 999.9 RPM
±(0.05%+1 Digit)
0.1 RPM
1000 to 99,999 RPM 1 RPM
TOT
(total revolutions) 1 to 99,999 ±(0.05%+1 Digit) 1 RPM
1
3
4
5
6
2

© Copyright 2016 General Technologies Corp.
General Technologies Corp.
#121 - 7350 72nd Street Tel.: [phone]
Delta, BC Fax: [phone]
Canada V4G 1H9 www.gtc.ca
4.2 Display Description
4.3 Measurement Procedures
Use of controls or adjustments or performance
of procedures other than those specied herein
may result in hazardous radiation exposure.
4.3.1 RPM Measurement
!CAUTION
• Apply a piece of reective tape to the rotating object to be measured.
•Slide the function switch to the “RPM” position
•Press the Measurement button and aim the laser beam at the
reective mark or tape on the rotating object.
•Verify that the on target indicator appears on the display to
conrm the instrument is detecting the rotation of the object and
the reective mark on it.
•Proceed to read the RPM on the digital display.
4.3.2 TOT (total revolutions) Measurement
• Apply a piece of reective tape to the rotating object to be measured.
•Slide the function switch to the “TOT” position
•Press the Measurement button and aim the laser beam at the
reective mark or tape on the rotating object.
•Verify that the on target indicator appears on the display to
conrm the instrument is detecting the rotation of the object and
the reective mark on it.
•Proceed to read the total revolutions on the digital display.
4.3.3 Reective marks
• Cut a 1/2” (1.25 cm) length of the reective tape provided, peel off
the backing to expose the adhesive, and attach it to the rotating
part or shaft to be measured, following these recommendations:
- The non-reective area must be larger than the reective piece of tape.
- If the object or shaft to be measure is reective, rst covered it with
a matte tape or paint it black before attaching the reective tape.
- Before applying the tape ensure that the surface is clean and smooth.
4.3.4 Very low RPM measurements
To measure slowly rotating parts, it may be advantageous to
follow the procedure below to increase the update rate of the
measurement:
• Depending on the size of the rotating object or shaft, attach
multiple reective marks, evenly spaced along its circumference.
•Proceed to measure RPM as described in 4.3.1, and divide the
reading by the number of reective marks, in order to obtain the
correct RPM.
4.4 Other Functions
4.4.1 Display Hold
•The instrument will automatically hold the last measurement
immediately after the on target indicator on the display turns off,
while the Measurement button is pressed.
4.4.2 MEM function
In every measuring cycle (pressing the Measurement button,
obtaining a reading, and then releasing the button), the instrument
will automatically store in its internal memory the maximum,
minimum and last value. To retrieve the values in memory follow
the procedure described below:
• With the instrument off press and hold down the MEM button
to display the maximum value stored in memory. The display
will alternate screen between ‘UP’ (maximum) and the stored
maximum reading. Note the value and release the MEM button.
• Pressing and holding again the MEM button will display the
minimum value stored in memory. The display will alternate
screen between ‘dn’ (minimum) and the stored minimum reading.
Note the value and release the MEM button.
• Pressing and holding once again the MEM button will display the
last reading value stored in memory. The display will alternate
screen between ‘LA’ (Last reading) and the stored last reading
value. Note the value and release the MEM button.
• This memory retrieve cycle will keep repeating in the order
detailed above.
Notes: The values stored in memory will be retained until a new
measurement cycle is performed.
Removing the batteries, or low batteries will cause all
values stored in memory to be erased.
5. MAINTENANCE
In order to avoid laser radiation exposure
when removing or replacing the battery
always make sure the laser aperture is
pointing away from any person, animal, or reective surface.
5.1 Battery Replacement
• When the battery is low and needs to be replaced, the ‘Low
battery warning’ symbol will appear on the lower left hand side of
the display.
• To replace the battery, remove the screw and open the battery
compartment cover (located at the back of the unit), and remove
the batteries.
• Replace with 4 x 1.5 V type AA/UM3 or equivalent observing the
proper polarity of each battery as indicated at the bottom of the
battery compartment.
• Close the battery cover, and replace the screw.
5.2 Cleaning
In order to avoid laser radiation exposure,
remove the battery before performing any
cleaning of the lens or exterior of the instrument.
5.2.1 Lens Cleaning
Debris or dirt on the lens may cause obstruction and reduce the
accuracy of the tachometer. If this occurs, either wipe the lens
with a cotton swab (moistened with water only) or blow the loose
particles off with clean compressed air. Do not use solvents on the
lenses, as they may damage the instrument.
5.2.2 Exterior Cleaning
Periodically wipe the enclosure with a soft damp cloth and mild
household cleanser. Do not use abrasives or solvents. Ensure that
no water gets inside the instrument to prevent possible short circuits
and damage.
6. WARRANTY
One year limited warranty, excluding batteries and fuses. For
details see Standard Warranty Information on our web page or
request a printed copy.
!CAUTION
!CAUTION