Shimpo Instruments DT-105A User Manual

Instruction Manual
Model DT-105A
Handheld Contact
LCD Digital Tachometer
Features
The Shimpo DT-105A 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 floating decimal point
! C-MOS single chip microprocessor for high reliability and
low maintenance
! Rugged construction - die-cast aluminum housing
NOTE: When using master wheel, accuracy can be affected
as much as 0.3% of reading
CAUTION: Although tachometer alone is able to achieve
above ranges, the master wheel has a maximum speed limitation
of 5,000 FPM (for safety reasons).
MODEL DT-105A
Display Range 0.10 to 25,000 rpm with floating decimal
Accuracy ±0.06 rpm: 0.10 to 999.99 rpm
±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
Display 5 digit 0.47" (12mm) high LCD
Measuring Units Revolutions: RPH, RPM Feet: FPH, FPM Miles: MPH
Yards: YPH, YPM Inches: IPM Meters: mPH, mPM
Length: m, cm, inches, feet, yards Total revolutions: REV
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
Life: Approx. 65 hrs
Low Voltage Indicator Flashing “LO BAT” display
Operating Temperature 32° to 113°F (0° to 45°C)
Construction Die-cast aluminum housing
Weight 0.9 lbs (400g)
Dimensions 7.3"L x 2.4"W x 1.8"H (185mm x 60mm x 45.7mm)
Warranty 1 year
STANDARD ACCESSORIES 2 cone adapters, 1 funnel adapter, 3-1/2" extension shaft,
carrying case and 1 master wheel (6" cir.)
Using the 6" master wheel and proper mode selector switch,
the following industrial units of measurement are achieved.
Range and Accuracy
Specifications
MODEL DT-105A
R: REVOLUTIONS SINGLE RANGE ACCURACY RESOLUTION
Contact RPM (rev./min.) 0.10 - 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 rpm 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) 0.05 - 999.99 ± 0.06 0.01
1,000.0 - 9,999.9 ± 0.6 0.1
10,000 - 12,500 ± 1 1
F/H (feet/hour) 3 - 99,999 ±0.006% of reading ±1digit 1
(or ±6 FPH max.)
FT (length) 0.01 - 999.99 0.01
1,000.0 - 9,999.9 0.1
10,000 - 99,999 1
Y: YARDS SINGLE RANGE ACCURACY RESOLUTION
Y/M (yards/min.) 0.02 - 999.99 ± 0.06 0.01
1,000.0 - 4,167.0 ± 0.3 0.1
Y/H (yards/hour) 1.0 - 9,999.9 ±0.6 0.1
10,000 - 99,999 ±0.006% of reading ±1digit 1
(or ±6 YPH max.)
YRd (length) 0.005 - 99.995 0.005
100.00 - 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.) 0.6 - 9,999.9 ±0.6 0.1
10,000 - 99,999 ±0.006% of reading ±1digit 1
(or ±6 IPM max.)
IN (length) 0.1 - 9,999.9 0.1
10,000 - 99,999 1
m: METERS SINGLE RANGE ACCURACY RESOLUTION
m/M (meters/min.) 0.02 - 999.99 ± 0.06 0.01
1,000.0 - 3,810.0 ± 0.3 0.1
m/H (meters/hour) 0.9 - 9,999.9 ± 0.6 0.1
10,000 - 99,999 ±0.006% of reading ±1digit 1
(or ±6 mPH max.)
m (length) 0.005 - 99.995 0.005
100.00 - 999.99 0.01
1,000.0 - 9,999.9 0.1
10,000 - 99,999 1
cm (length) 0.5 - 9,999.5 0.5
10,000 - 99,999 1
M: MILES SINGLE RANGE ACCURACY RESOLUTION
M/H (miles/hour) 0.0006 - 9.9999 ± 0.0006 0.0001
10.000 - 99.999 ± 0.006 0.001
100.00 - 142.05 ± 0.01 0.01
SHIMPO INSTRUMENTS
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Shimpo Instruments DT-105A Specifications

General

Model	DT-105A
Category	Measuring Instruments
Type	Digital Tachometer
Resolution	1 RPM (above 1, 000 RPM)
Accuracy	±0.05% of reading ±1 digit
Display	5-digit LCD
Power Supply	One 9V battery
Operating Temperature	0 to 45°C (32 to 113°F)
Storage Temperature	14° to 140°F (-10° to 60°C)
Sensing Method	Contact (using included rubber wheel) or Non-contact (using reflective tape)
Target Distance	50 to 200 mm (non-contact)

Summary

Range and Accuracy

Features

Specifications

Display Range

Defines the measurement range of the digital display for various units.

Accuracy

Specifies the precision and allowable error margin for measurements.

Display

Details the type and size of the LCD screen used for readings.

Measuring Units

Lists the different units of measurement the tachometer can display.

Memory System

Describes how readings are stored and for how long.

Detection

Explains the method used for detecting rotation or speed.

System Control

Identifies the internal microprocessor controlling the device.

Over Range Indicator

Indicates the visual signal when measurement exceeds the display limit.

Update Time

Specifies the typical time it takes for the display to refresh.

Batteries Included

Details the type and quantity of batteries supplied with the unit.

Low Voltage Indicator

Describes the alert for low battery power.

Operating Temperature

States the environmental temperature range for proper operation.

Construction

Mentions the material and build of the tachometer housing.

Weight

Provides the physical weight of the instrument.

Dimensions

Lists the physical size (length, width, height) of the device.

Warranty

States the duration of the product warranty.

Standard Accessories

Lists items included with the tachometer purchase.

Operating Procedure

Attaching Adapter or Wheel

Instructions for connecting measurement accessories to the device shaft.

Selecting Measurement Unit

Guidance on turning the selector switch to the desired unit of measurement.

Performing Measurement

Steps for initiating and observing speed measurements using the tachometer.

Memory Recall

Automatic Memory

Details how readings are automatically stored for a short period.

Memory Selection

Explains how to manually store and recall up to 10 additional readings.

Battery Replacement