Shimpo Instruments DT-105A-S12, DT-107A-S12 Instruction Manual

D T-105A-S12/107A-S12
Contact Digital Tachometer

Instruction Manual

Features

The Shimpo DT-105A-S12/107A-S12 is a battery operated,
handheld, microprocessor-controlled contact type tachometer.
It incorporates the latest micro-circuit technology and offers:



Multi-mode capability – measures RPM, FPM, YPM, mPM

and other units without special accessories



Large memory capacity



Wide speed range with automatic oating decimal point

C-MOS single chip microprocessor for high reliability and



low maintenance

Rugged construction - die-cast aluminum housing



Specications

MODEL DT-105A-S12 DT-107A-S12

Display Range 0.10 to 25,000 rpm with floating decimal

Accuracy ±0.06 rpm: 0.10 to 999.99 rpm

Display 5 digit 0.47" (12mm) high LCD 5 digit 0.4" (10mm) high LED

Measuring Units Revolutions: RPH, RPM Feet: FPH, FPM Miles: MPH

Memory System 13 readings are stored in memory and retained for

5 minutes (last, max., min. and 10 extra measurements)

Detection Optical coupler, 60 pulses/rev

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 BAT” display "B" display

Operating Temperature 32° to 113°F (0° to 45°C)

Construction Die-cast aluminum housing

Weight 0.9 lbs (400g)

Dimensions 7.2"L x 2.4"W x 1.8"H (182.5mm x 60mm x 45.7mm)

Warranty 1 year

STANDARD ACCESSORIES 2 cone adapters, 1 funnel adapter, 3-1/2" extension shaft,

±0.6 rpm: 1,000.0 to 9,999.9 rpm

±0.006% of reading ±1 digit (or ±2rpm max.): 10,000 to 25,000 rpm

Yards: YPH, YPM Inches: IPM Meters: mPH, mPM

Length: m, cm, inches, feet, yards Total revolutions: REV

Life: Approx. 65 hrs

carrying case and 1 master wheel (12" cir.)

Range and Accuracy

Using the 12" master wheel and proper mode selector switch,
the following industrial units of measurement are achieved.

MODEL DT-105A-S12/107A-S12

R: REV OLUTIONS SINGLE RANGE ACCURACY RESOLUTION

Contact RPM (rev./min.) 0.1 - 999.99 ± 0.06 0.01

1,000.0 - 9,999.9 ± 0.6 0.1

10,000 - 25,000 ±0.006% of reading ±1digit 1

(or ±2 rpm max.)

Contact RPH (rev./hour) 6 - 99,999 ±0.006% of reading ±1digit 1

(or ±6 rph max.)

REV (total revolution) 0.1 - 9,999.9 ± 0.1 0.1

10,000 - 99,999 ± 1 1

F: FEET SINGLE RANGE ACCURACY RESOLUTION

F/M (feet/min) 0.1 - 999.99 ± 0.06 0.01

1,000.0 - 9,999.9 ± 0.6 0.1

10,000 - 25,000 ± 1 1

F/H (feet/hour) 6 - 99,999 ±0.006% of reading ±1digit 1

(or ±6 FPH max.)

FT (length:feet) 0.02 - 999.98 0.02

1,000.0 - 9,999.9 0.1

10,000 - 99,999 1

Y: YARDS SINGLE RANGE ACCURACY RESOLUTION

Y/M (yards/min.) 0.03 - 999.99 ± 0.06 0.01

1,000.0 - 8,333.3 ± 0.3 0.1

Y/H (yards/hour) 2.0 - 9,999.9 ±0.6 0.1

10,000 - 99,999 ±0.006% of reading ±1digit 1

(or ±6 YPH max.)

YRd (length:yard) 0.01 - 999.99 0.01

1,000.0 - 9,999.9 0.1

10,000 - 99,999 1

I: INCHES SINGLE RANGE ACCURACY RESOLUTION

I/M (inches/min.) 1.2 - 9,999.9 ±0.6 0.1

10,000 - 99,999 ±0.006% of reading ±1digit 1

(or ±6 IPM max.)

IN (length:inches) 0.2 - 9,999.8 0.2

10,000 - 99,999 1

m: METERS SINGLE RANGE ACCURACY RESOLUTION

m/M (meters/min.) 0.03 - 999.99 ± 0.06 0.01

1,000.0 - 7,620.0 ± 0.3 0.1

m/H (meters/hour) 1.8 - 9,999.9 ± 0.6 0.1

10,000 - 99,999 ±0.006% of reading ±1digit 1

(or ±6 mPH max.)

m (length:meter) 0.01 - 999.99 0.01

1,000.0 - 9,999.9 0.1

10,000 - 99,999 1

cm (length:centimeter) 0.5 - 9,999.5 0.5

10,000 - 99,999 1

M: MILES SINGLE RANGE ACCURACY RESOLUTION

M/H (miles/hour) 0.0011 - 9.9999 ± 0.0006 0.0001

10.000 - 99.999 ± 0.006 0.001

100.00 - 284.09 ± 0.01 0.01

NOTE: When using master wheel, accuracy can be affected
as much as 0.1% of reading

CAUTION: Although tachometer alone is able to achieve
above ranges, the master wheel has a maximum speed limitation
of 6,000 FPM (for safety reasons).

Surface Speed Metric Conversion

Memory Recall

Conversions such as YPM to mPM or mPM to YPM may be
obtained from the memory only by switching from one mode
to another.

Operating Procedure

1. Place adapter or wheel
on shaft (as shown).

CAUTION: Do not

attach master speed
wheel on extension
shaft. The wheel may slip off during measurement.

2. Turn selector switch to desired unit.

Automatic Memory

The following are automatically stored in memory for 5 minutes
following release of the power switch:

• Last reading

• Maximum reading

• Minimum reading

These readings will be displayed in the following order when
the memory switch is pressed:

• Last reading

• Maximum reading

• Minimum reading

To fill all three memory spaces, unit must operate for about 5
seconds. If any of the above memory readings are missing,
unit must operate a few seconds longer.

DT-107A-S12 (only)

Memory Selection

The DT-105A-S12/107A-S12 has the capability of storing 10
extra readings in its memory. These readings can be obtained
from the same machine or many machines (up to 10) by p ressing
the memory switch momentarily as the reading you wish stored
appears on the display. An "M" with an integer (DT-105A-S12
only) will appear on the top of the display momentarily, and
will be stored in memory. Up to 10 readings can be stored.

3. After attaching proper
adapter or wheel, bring
it into contact with
rotating object or
moving surface whose
speed is to be measured.
Apply only enough pressure to eliminate slip. The selected
function will be shown "blinking" above the display digits.

4. Press and hold the on-off switch. Display will update
approximately every second.

5. Observe speed for as long as it is desired.

6. On-off switch must be released prior to removal of tachometer
from rotating object if last reading must be captured.

7. After release of power switch, the last reading will be displayed
for approximately 5 minutes. Readings will be retained in
memory for 5 minutes and can be extended any number of
additional 5 minute periods by re-pressing the memory switch.

NOTE: All memory data will be
has occurred. To recall a specific reading, press the memory
switch until the desired reading shows up on the display along
with its memory position. To erase all data from the memory,
press the memory switch for at least 5 seconds until display
shows CCCCC. If you hold the memory switch, the display
will continue to show CCCCC until the switch is released, then
will default to 0.00.

erased if automatic shut-off

Battery Replacement

Low battery voltage is
indicated by LO BAT/B on
the display. Remove end
cover by using a coin or
appropriate screwdriver
and replace both batteries.
Please note polarity.