Model DT-205L
Handheld LCD Digital
Laser Tachometer
Congratulations on your purchase of a Shimpo DT-205L digital
laser tachometer! We trust you will enjoy many years of
professional results from your Shimpo tachometer.
Please read the entire instruction manual thoroughly before initial
set-up and operation; the information contained herein will aid
you in operating your Shimpo tachometer safely and with
excellent results.
If you have any questions regarding our product(s), call your
local Shimpo representative or contact Shimpo Instruments
directly for assistance.
Inspection/Standard Accessories
Instruction Manual
Features and Benefits
The Shimpo DT-205L is a battery-operated, microprocessorcontrolled, non-contact/contact tachometer that utilizes a laser
beam for movement detection. In the non-contact mode a laser
beam measures RPM when directed towards a shaft (or any other
rotating mechanism marked with a small piece of reflective tape).
The included 200L adapter allows for contact measurement via a
rubber tip cone attachment or the included 6” master linear wheel.
The DT-205L tachometer incorporates the latest microprocessor
and laser technology and offers:
• Multi-mode capability measures RPM, mPM, YPM, FPM,
IPM and total meters, yards, feet and inches
• Large memory capacity allows up to 13 measurements to
be stored in memory
• Single chip microprocessor ensures reliability and low
maintenance
• Safely measures RPM (non-contact mode) from up to 14
feet away
• Oversized 5-digit LCD display permits easy reading
• Long battery life (up to 40 hours of continuous use)
• Rugged die-cast aluminum housing provides exceptional
durability
• Extended measuring range (6 - 99,999 rpm) covers wide
range of applications
Important Safety Instructions
Do not point the laser beam into eyes as permanent
eye damage may occur! Shimpo Instruments does
not condone usage inconsistent with product's labeling
and warning.
If upon delivery shipping damage is detected, do not operate
tachometer. Notify shipping carrier immediately for damage
claim instructions. Refer to nameplate and record serial number
for future reference.
Items included with the DT-205L are:
• Carrying case
• Cone adapter
• 200L adapter
• 6” master wheel
• Reflective tape
• NIST certificate
When using the 6” master wheel, do not use the
extension shaft - the wheel may fly off the shaft and
cause damage.
Although the tachometer alone is able to achieve the
higher ranges listed in the Range and Accuracy table
on page 3, the master wheel has a maximum speed
limitation of 5,000 FPM (for safety reasons).
Display Panel
Operating Procedures
Non-Contact Measurement
1. Place a small piece of reflective tape
(included) on the shaft or moving
element (disc, pulley, etc.) whose
speed is to be measured. If the
element's surface is highly reflective
it may need to be painted a darker
color in order to ensure reliable results.
If the distance to the object is less than 5" (127 mm),
reflective tabs (optional) should be used instead of
reflective tape.
2. Aim the tachometer at the reflective tape from a distance
of 5" (127 mm) to 14' (4.3 m).
3. Press and hold the power switch for several seconds to
observe the display as it changes according to the speed of
the shaft or rotating element (as soon as the laser hits the
reflective tape, the unit will start to indicate the speed). If
the beam is “on target” the unit RPM will flash at the top
of the display . If RPM is not flashing then the beam is “off
target” (adjust aim).
4. After observation is completed, retain the reading by
releasing the power switch before removing the tachometer
from its position. The last reading is displayed for a period
of 5 minutes and can be extended any number of additional
5 minute increments by pressing the memory switch.
NOTE: When switching from the contact to the non-contact
mode, the unit RPM will show on the display and also 5 dashes
(-----). Press the power switch to cancel the dashes.
Contact Measurement
For both RPM measurements and nonRPM measurements, screw the 200L
adapter (included) into the front of the
tachometer.
NOTE: Do not use excessive torque when
mounting - hand tightening is sufficient
RPM Measur e ment
1. Place rubber cone tip on the shaft of
the 200L adapter. Make certain that
the pin on the shaft is properly
aligned with the slot on the cone’s
sleeve.
2. Bring cone into contact with the shaft. Apply only enough
pressure to avoid slippage.
3. Press and hold the power switch. During engagement the
display will reflect the proper RPM while the unit RPM
will be flashing above the display digits.
4. Release the power switch prior to removal of tachometer
from rotating object to capture the last reading.
5. After release of the power switch, the last reading (with a
non-flashing RPM unit) will remain on the display and in
memory for 5 minutes, and can be extended any number
of additional 5 minute periods by pressing the memory
switch.
Rate & Length Measurement
1. Attach the 6” master wheel and select
the desired function using the selector
switch located just below the display .
2. Press and hold the power switch;
while the wheel is turning and the
tachometer is measuring the selected
function, the function will be indicated above the digits
and will be flashing.
3. Release the power switch before disengaging the
tachometer in order to capture the last reading.
4. After release of the power switch, the last, maximum, and
minimum readings will be stored in memory for 5 minutes
and can be extended any number of additional 5 minute
periods by pressing the memory switch.
NOTE: The memory will clear in 5 minutes after the release of
the power switch.
For steps 1-4 described above, it was assumed that the selector
switch was in the rate mode region. If the selector switch is
moved from the rate mode to the count mode (length), the display
will show the selected function (m, ft, yd, or in) and also 5 dashes
(-----). Press the power switch to cancel the dashes and start
measuring the same way as was described above. Once in the
counting mode, the measurement can be stopped at any time and
the last reading will be retained for 5 minutes. There is no
maximum or minimum reading when in the count (length) mode.
2
Memory Recall
Range and Accuracy
Non-Contact Mode
The following readings are stored in memory for 5 minutes after
release of the power switch:
• Last reading
• Maximum reading
• Minimum reading
These readings can be recalled by pressing the memory switch.
Ten extra readings can also be captured, stored, then recalled
using the memory switch - simply press the memory switch each
time a reading needs to be stored while the tachometer is in use.
Contact Mode (Rate Functions)
When the rate functions are selected (mPM, YPM, FPM and
IPM), the memory store and recall functions are accomplished
exactly as noted above.
Contact Mode (Length Functions)
When the counting functions are selected, the memory store and
recall functions are accomplished in the same manner as the non-
contact mode, the only exception being the maximum and
minimum readings (they do not exist).
To clear the memory completely (for all functions), press the
memory switch for approximately 6 seconds until the display
shows CCCCC, then release the switch.
Place selector switch in the proper position. Using the 200L
adapter and 6” master wheel, the following industrial units of
measurement are achieved:
MODEL DT-205L
R: REVOLUTIONS SINGLE RANGE ACCURACY RESOLUTION
Non-Contact RPM 6 - 8,300 ± 1
(rev./min.)
Contact R PM (r ev./min.) 0.8 - 9,999.9 ±0.6% 0.1
F: FEET SINGLE RANGE ACCURACY RESOLUTION
F/M (feet/min.) 0.4 - 9,999.9 ± 0.6 0.1
FT (feet) 0.10 - 999.99 0.01
Y: YARDS SINGLE RANGE ACCURACY RESOLUTION
Y/M (yards/min.) 0.13 - 999.99 ± 0.06 0.01
YRd (length) 0.02 - 999.99 0.01
I: INCHES SINGLE RANGE ACCURACY RESOLUTION
I/M (inches/min.) 5 - 99,999 ±0.006% of reading ±1digit
IN (length) 1.0 - 9,999.9 0.1
m: METERS SINGLE RANGE ACCURACY RESOLUTION
m/M (meters/min.) 0.11 - 999.99 ± 0.06 0.01
m (length) 0.02 - 999.99 0.01
8,300 - 25,000 ± 2 1
25,000 - 99,999 ±0.006% of reading ±1digit
(or ±6 RPM max.)
10,000 - 25,000 ±0.006% of reading ±1digit 1
(or ±2 RPM max.)
10,000 - 12,500 ± 1 1
1,000.0 - 9,999.9 0.1
10,000 - 99,999 1
1,000.0 - 4,167.0 ± 0.3 0.1
1,000.0 - 9,999.9 0.1
10,000 - 99,999 1
(or ±6 RPM max.)
10,000 - 99,999 1
1,000.0 - 3,810.0 ± 0.3 0.1
1,000.0 - 9,999.9 0.1
10,000 - 99,999 1
1
Battery Replacement
Low battery voltage is indicated by flashing LOW BAT on the
display. Remove end cover by using a coin or appropriate
screwdriver and replace both batteries. Please ensure proper
polarity.
NOTE: When using the 6” master wheel, accuracy can be
affected as much as 0.3% of reading
Although the tachometer alone is able to achieve the
above ranges, the master wheel has maximum speed
limitation of 5,000 FPM (for safety reasons)
3
Troubleshooting
The following are general checkpoints; please call your local Shimpo representative or contact Shimpo Instruments directly for further
assistance.
No laser beam is evident:
• Confirm that power switch is functioning
• Confirm that batteries are functioning and that polarity is correct
Inaccurate measurement results:
• If the surface being measured is highly reflective, it may need to be painted a darker color in order to ensure reliable results
• Beam may not be hitting the reflective tape, or taped area may be too small
• Measuring distance may be too short (unit must be at least 5” from intended mark)
Dimensions and Specifications
MODEL DT-205L
Display Range 6 to 99,999 rpm
Accuracy ±1 rpm: 6 to 8,300 rpm
±0.006% of reading ±1 digit (or ±6 rpm max.): 25,000 to 99,999 rpm
Display 5 digit 0.47" (12mm) high LCD
Measuring Units RPM (on contact using adapter, included)
For YPM, mPM, FPM, IPM and Length: YRD, m, FT and IN
Measuring Distance 14' (4.2 m) maximum
Memory System 13 readings are stored in memory and retained for 5 minutes
Detection Laser diode
System Control Single chip C-MOS microprocessor
Over Range Indicator Flashing numerals
Update Time 1 second (typical)
Batteries Included Size: 2 AA 1.5V
Low Voltage Indicator Flashing “LO BA T” display
Operating Tempera t u re 32° to 1 13°F (0° to 45°C)
Construction Die-cast aluminum housing
Weight 0.8 lb (365g)
Dimensions 6.6"L x 2.4"W x 1.8"H (167 mm x 60 mm x 46 mm)
Warranty 1 year
STANDARD ACCESSORIES Reflective tape, cone adapter, carrying case,
±2 rpm: 8,300 to 25,000 rpm
use 6” cir. wheel with 200L adapter
(last, max., min. and 10 extra measurements)
Life: Approx. 40 hrs
master wheel (6" cir.) and 200L adapter
Warranty
LIMITED EXPRESS WARRANTY: Shimpo Instruments warrants, to the original purchaser of new products only, that this product shall be free from defects in
workmanship and materials under normal use and proper maintenance for one year from the date of original purchase. This warranty shall not be effective if the product
has been subject to overload, misuse, negligence, or accident, or if the product has been repaired or altered outside of Shimpo Instruments’s authorized control in any
respect which in Shimpo Instruments’s judgment, adversely affects its condition or operation.
DISCLAIMER OF ALL OTHER WARRANTIES: The foregoing warranty constitutes the SOLE AND EXCLUSIVE WARRANTY, and Shimpo Instruments hereby
disclaims all other warranties, expressed, statutory or implied, applicable to the product, including, but not limited to all implied warranties of merchantability and fitness.
LIMITATION OF REMEDY: Under this warranty, Shimpo Instruments’ SOLE OBLIGATION SHALL BE TO REPAIR OR REPLACE the defective product or part, at
Shimpo Instruments’ option. Shimpo Instruments reserves the right to satisfy warranty obligation in full by reimbursing Buyer for all payments made to Shimpo Instruments,
whereupon, title shall pass to Shimpo Instruments upon acceptance of return goods. T o obtain warranty service, Purchaser must obtain Shimpo Instruments’s authorization
before returning the product, properly repackaged, freight pre-paid to Shimpo Instruments.
INDEMNIFICATION & LIMITATION OF DAMAGES: Buyer agrees to indemnify and hold Shimpo Instruments harmless from and against all claims and damages
imposed upon or incurred arising, directly or indirectly, from Buyer’s failure to perform or satisfy any of the terms described herein. In no event shall Shimpo Instruments
be liable for injuries of any nature involving the product, including incidental or consequential damages to person or property, any economic loss or loss of use.
MERGER CLAUSE: Any statements made by the Seller’s representative do not constitute warranties except to the extent that they also appear in writing. This writing
constitutes the entire and final expression of the parties’ agreement.
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