Lutron Electronics DT-2230 Bedienungsanleitung

et typ

PHOTO/CONTAC

TACHOMETER

Model : DT-2230

our purchase of this

PHOTO/CONTACT

ACHOMETER marks a

step forward for you into

the field of precision

measurement. Although

this TACHOMETER is a

complex and delicate

instrument, its durable

structure will allow many

years of use if proper

operating techniques are

developed. Please read

the following instructions

carefully and always keep

this manual within easy

reach.

OPERATION MANUAL

TABLE OF CONTENTS

1 FEATURES................................................................ 1

2 SPECIFICATIONS......................................................

3 FRONT PANEL DESCRIPTION..................................... 4

3-1 Display..............................................................

3-2 Power Button..................................................... 4

3-3 Function Button.................................................

3-4 Memory Button..................................................

3-5 Surface Speed Wheel.........................................

3-6 RPM Adapter ( Contact Tach. )............................ 4

3-7 Photo Tach. detect sensor..................................

3-8 Laser Light Beam...............................................

3-9 Battery Cover/Compartment...............................

3-10 Reflecting Mark.................................................

3-11 Monitor indicator............................................... 4

3-12 RS-232 Output Terminal....................................

4 MEASURING PROCEDURES....................................... 5

4-1 Change the function............................................ 5

4-2 Photo RPM measurement..................................... 6

4-3 Contact RPM measurement.................................. 6

4-4 Surface Speed Measurement................................ 7

5 OPERATION PROCEDURE FOR MEMORY RECALL........ 7

6 BATTERY REPLACEMENT........................................... 8

7. RS232 PC SERIAL INTERFACE...................................

8 PATENT....................................................................10

1. FEATURES

* Compact and pocket tachometer.

* The best Tachometer in the world. 2 in 1, one

instrument combine Photo tachometer and Contact

Tachometer.

* Photo tachometer uses Laser light detecting source,

long measuring range up to 1.5 meters, it is useful in

the RPM measurement application where the machine

would be a risk to the operator or close access is

difficult or not possible.

* Wide measuring range from 0.5 to 100,000 RPM, 0.1

RPM resolution for the measured value < 1000 RPM.

* Microprocessor based circuit, crystal time base, high

precision with 0.1% accuracy.

* High visible LCD display gives RPM reading exactly

with no guessing or errors & saves battery energy.

* Memory with recall function, the last value, max., value,

min. value will be stored into the memory automatically.

* The use of durable, long lasting components, including

a strong, light weight ABS plastic housing, assures

almost maintenance free performance for many years.

* RS232 PC serial interface.

* The tachometer have patent patented, refer page 10.

2. SPECIFICATIONS

Measurement

Photo Tachometer :

& Range 5 to 99,999 RPM.

Contact Tachometer :

0.5 to 19,999 RPM.

Surface Speed :

m/min. - 0.05 to 1,999.9 m/min.

ft/min. - 0.2 to 6,560 ft/min.

in/min. - 2.0 to 78,740 in/min.

Resolution

RPM

0.1 RPM ( < 1,000 RPM ).

1 RPM ( 1,000 RPM ).≧

m/min.

0.01 m/min. ( < 100 m/min. ).

0.1 m/min. ( 100 m/min. ).≧

ft/min.

0.1 ft/min. ( < 1,000 ft/min. ).

1 ft/min. ( 1,000 ft/min. ).≧

in/min.

0.1 in/min. ( < 1,000 in/min. ).

1 in/min. ( 1,000 in/min. ).≧

Display LCD, size 32 mm x 28 mm.

5 digits with display unit.

Accuracy ± ( 0.1% + 1 digit ).

@ reading

Photo 5 to 150 cm typically.

Tachometer * Spec. of detecting distance are that

detecting under the size of reflecting tape is

distance 10 mm square & the measuring RPM

value is 1,800 RPM. The max. & min.

detecting distance may change

under different environment,

different reflecting tape or the

measuring RPM beyond 1800 RPM.

Time base Quartz crystal.

Circuit Exclusive one-chip of microcomputer

LSI circuit.

Photo Tach. * Less than 1 mW.

Laser light * Class 2 laser diode.

source Red Wave length is 645 nm

approximately.

Operating 0 to 50 ( 32 to 122 ).℃℉

Temperature

Operating Less than 80% R.H.

Humidity

Memory Memorize Last/Max./Min. value

with recall.

Data Output RS232 PC serial interface.

Battery 4 x 1.5V AAA ( UM4 ) batteries.

Power

Photo tachometer :

Consumption Approx. DC 20 mA.

Contact tachometer :

Approx. DC 9.5 mA.

Size 165 x 50 x 33 mm.

( 6.5 x 2.0 x 1.3 inch ).

Weight 182 g ( 0.4 LB ).

* Weight is cluded the batteries.

Accessories Reflecting tape marks

Included ( 600 mm )................................

1 PC.

Operation manual.......................1 PC.

Spare RPM cone rubber..............

1 PC.

Spare RPM funnel rubber............

1 PC.

Optional * Carrying case, CA-52A

Accessory * RS232 cable, UPCB-02.

* Data Acquisition software,

SW-U801-WIN.

3. FRONT PANEL DESCRIPTION

Fig. 1

3-1 Display

3-2 Power Button

3-3 Function Button

3-4 Memory Button

3-5 Surface Speed Wheel

3-6 RPM Adapter ( Contact Tach. )

3-7 Photo Tach. detect sensor

3-8 Laser Light Beam

3-9 Battery Cover/Compartment

3-10 Reflecting Mark

3-11 Monitor indicator

3-12 RS-232 Output Terminal

4. MEASURING PROCEDURE

4-1 Change the function

1)Press the " Power Button " ( 3-2, Fig. 1 ) continuously

and not release the finger from the button.

2)Press " Function Button " ( 3-3, Fig. 1 ) momentarily in

sequence, the function will change to

a.Contact RPM measurement, display shows

" RPM " symbol.

b.Surface speed ( m/min. ) measurement,

display shows " m/min " symbol.

c. Surface speed ( ft/min. ) measurement,

display shows " ft/min " symbol.

d.Surface speed ( in/min. ) measurement,

display shows " in/min " symbol.

e.Photo RPM measurement, display shows "

RPM " symbol, at the same the " Laser

Light Beam " ( 3-8, Fig. 1 ) will be generated.

Note :

* After the function be selected, release the

buttons, the function will saved into the meter

even turn off the meter.

* Turn on the meter again, the existing select

function will present .

4-2 Photo RPM measurement

1)Select ( default ) the function to " Photo RPM ", refer

chapter 4-1, page 5.

2)Apply a " Reflecting Mark " ( 3-10, Fig. 1 ) to the

object being measured. Press the " Power Button "

( 3-2, Fig. 1 ) continuously and align the " Laser Light

Beam " ( 3-8, Fig. 1 ) with the applied target. Verify

that the " Monitor Indicator " ( 3-11, Fig. 1 ) lights

when the target pass through the light beam.

Measuring consideration :

If the measured RPM values is very low ( for

example less than 50 RPM ), recommend to attach

more " Reflecting Marks " average to the object. It

will get the real RPM with high resolution, precisely

& fast sampling time when divided the reading

values by the no. of the " Marks ".

4-3 Contact RPM measurement

1)Select ( default ) the function to " Contact RPM ", refer

chapter 4-1, page 5.

2)Press the " Power Button " ( 3-2, Fig. 1 ) & lightly

pressing the " RPM Adapter " ( 3-6, Fig. 1 ) against the

center hole on the hole of the measured rotating axis.

Release the " Measuring Button " when the reading

stabilizes ( approx. 2 sec. ).

4-4 Surface Speed Measurement

1)Select ( default ) the function to surface speed " m/min "

" ft/min " or " in/min " refer chapter 4-1, page 5.

2)Press the " Power Button " ( 3-2, Fig. 1 ) and simply

attaching the " Surface Speed Wheel " ( 3-5, Fig. 1 ) to

the detector. Release the " Power Button " when the

reading stabilizes ( approx. 2 sec. ).

5. OPERATION PROCEDURE FOR

MEMORY RECALL

1)The readout of " last value ", " max. value " & " min.

value " can be obtained immediately & memorized

into the circuit automatically after turning off the

"Measuring Button".

2)When have finished the measuring procedures ( after

release the measuring button ), the memorized values

can be displayed on the LCD display whenever :

a.First push the " Memory Button " ( 3-4, Fig. 1 ) -

To display the last value ( " LA " and " the last value "

will be displayed alternately ).

b.Second, push the " Memory Button " again -

To display the maximum value ( " UP " and " the

max. value " will be displayed alternately).

c. Third, push the " Memory Button " again -

To display the minimum value ( " dn " and " the min.

value " will be displayed alternately ).

6. BATTERY REPLACEMENT

*Replace the batteries when the LCD displays the low

battery icon " LO ", using 4 fresh 1.5 V ( UM4,

AAA ) batteries.

*To change the batteries, open the " Battery Cover "

( 3-9, Fig. 1 ).

*Make sure the " Battery cover " ( 3-9, Fig 1 ) is secured

after changing the batteries.

7. RS232 PC SERIAL INTERFACE

The instrument has RS232 PC serial interface via a 3.5

mm terminal ( 3-12, Fig. 1 ).

The data output is a 16 digit stream which can be

utilized for user's specific application.

A RS232 lead with the following connection will be

required to link the instrument with the PC serial port.

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