Triplett TA200 Manual de usuario

User Manual

TA200

Laser Photo/Contact Tachometer

Introduction

Congratulations on your purchase of the Triplett TA200 Laser Photo/Contact Tachometer.

The TA200 digital tachometer offers fast and accurate measurements of the following:

Rotational speed (RPM)

Total Revolutions (REV)

Frequency (Hz)

Surface Speed (meters per minute, incher per minute, feet per minute, yards per minute)

Length (meters, inches, feet, and yards)

Features include wide measurement range, high resolution, easy‐to‐read backlit LCD, MAX‐MIN‐

AVG memory, Record/Recall readings, and Laser sighting.

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Description

Meter Description

1. Surface (circumference) wheel accessory is

shown connected to shaft (rubber cone and

concave accessories are also supplied)

2. Adaptor shaft

3. Removable collar (Photo sensor and laser source are

located at the top of the meter under this collar)

4. MEM (Memory) button

5. Battery compartment (rear)

6. MEASURE button

7. MODE button

8. LCD Display

Push‐button Description

MEM (Memory) button: Used to Record/Recall readings

MEASURE button: Press and hold to take readings. The Laser pointer will switch on for

Photo tachometer measurements when pressed

MODE button: Press momentarily to switch measurement units. Press and hold for 2

seconds to switch between Surface Speed and Length measurement modes

Safety

WARNING!

Do not directly view or direct the laser pointer toward an eye.

Low power visible lasers do not normally present a hazard, but

present potential for hazard if viewed directly for extended

periods of time.

The Laser in this unit complies with: FDA 21 CFR 1040.10 and

1040.11

CAUTION!

Rotating and linear moving objects can be dangerous. Use extreme care.

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Preparing for Measurements

Non‐Contact (Photo) Tachometer Preparation

1. Apply a square piece of reflective tape to the surface of the object under test (nominal tape

size: 0.5”/12mm). Be sure to affix the tape as close to the outer edge of the object under

test as possible. See diagram below.

2. If not already done, unscrew and remove the meter collar (item number 3 in the

Description section diagram)

3. Proceed to the “Taking Measurements” section below.

Contact Tachometer Preparation

5. If not already done, attach the collar (item number 3 in the Description section diagram)

to the meter.

6. Slide the contact adaptor onto the tachometer’s shaft. Be sure to align the adaptor with

the alignment pin on the shaft of the contact adaptor.

7. Attach a contact measurement accessory (cone, wheel, or concave accessory) onto

the contact adaptor.

8. For Contact operation the meter can measure Surface Speed or Length. Read the section

titled “Surface Speed and Length Measurement Modes” later in this guide for details.

9. Follow the steps in the “Taking Measurements” section below.

Taking Measurements

Non‐Contact (Photo) Tachometer Measurements

1. Prepare for the Non‐Contact measurement as described in the Measurement Preparation

section above.

2. Use the MODE button (momentarily presses) to select RPM (rotations per minute) or Hz

(Hertz: rotations per second) as the unit of measure.

3. Press and hold the MEASURE button to begin a measurement session. Hold the MEASURE

button down for the duration of the test and release it to end the session.

4. Point the meter toward the device under test at a distance of 2" to 20" (50 to 500mm). Be

sure to align the laser light beam with the reflective tape (see diagram above in previous

section).

5. Verify that the ((( ))) monitor indicator appears on the LCD when the reflective tape passes

through the light beam.

6. Read the measurement result from the LCD display.

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7. When the MEASURE button is released the last reading will remain on the display for 5 to 10

seconds before the ‘Auto Power OFF’ feature switches the meter OFF. The HOLD display icon

will switch ON.

Non‐Contact (Photo tachometer) Measurement Considerations

Bright ambient light may interfere with the reflected light beam. Shading the target area

may be necessary in some cases.

The non‐reflective area must always be larger than the reflective area.

If the shaft or rotating object is normally reflective, it must be covered with black tape or

paint before the reflective tape is applied.

To improve repeatability of low RPM measurements, apply additional squares of

reflective tape. Divide the reading shown on the display by the number of pieces of

reflective tape squares to calculate the actual RPM.

Contact Tachometer Measurements

1. Prepare for Contact measurements as described in the Measurement Preparation section

above.

2. Determine if Surface Speed or Length measurements are to be made. Refer to the section

“Surface Speed and Length Measurement Modes” later in this guide for details.

3. Press and hold the MEASURE button.

4. Touch the measurement accessory (cone, wheel, or concave accessory) to the object under

test.

5. Read the measurement result from the LCD display.

6. When the Measure button is released the last reading will remain on the display for 5 to 10

seconds before the ‘Auto Power OFF’ feature switches the meter OFF. The HOLD display icon

will switch ON.

7. To change the unit of measure, first release the MEASURE button. Then, momentary presses of

the MODE button will step through the available units. Refer to the Specifications section and

to the section below entitled “Surface Speed and Length Measurement Modes” for units of

measure details.

Surface Speed, Length, and Revolutions Measurement Modes

1. To switch between the Surface Speed and the Length measurement modes, press and hold

the MODE button for two seconds.

2. The units of measure available in the Surface Speed mode are meters per minute (M/M),

inches per minute (I/M), feet per minute (F/M), and yards per minute (Y/M). Step through

the units selections with momentary presses of the MODE button.

3. The units of measure available in the Length measurement mode are meters (M), inches (I),

feet (F), yards (Y), and revolutions (REV). The Revolutions (REV) mode is handy as a counter for

use with custom sized wheel attachments to count (tally) wheel rotations. Step through the

units selections with momentary presses of the MODE button.

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Datalog Readings

The TA200 can log up to ten (10) “reading sets” for each measurement session (for each unit of

measure display). A reading set consists of four (4) values:

Initial reading (reading recorded when MEM button is

pressed) Maximum reading (MAX icon shown)

Minimum reading (MIN icon shown)

Average reading (AVG icon shown)

This totals 400 stored readings (4 values per reading set * 10 reading sets per

measurement session * 10 units of measure displays)

A measurement session starts when the MEASURE button is pressed and ends when it is released.

Logging starts when the user presses the MEM button momentarily and ends when the

MEAUSURE button is released. The number shown on the LCD in the lower right hand corner (data

0 –9) indicates the current memory location. See example time‐line diagram below.

MEAS‐01: MEASURE button is pressed (measurement session begins)

A: No logging during this period

MEM: MEM button is pressed momentarily, initial reading is logged and

MIN/MAX/AVG logging begins

B: MAX/MIN/AVG readings are tracked and recorded during this period

MEAS‐02: MEASURE button is released (measurement session and logging ends)

1. Press and hold the MEASURE button to begin a measurement session as described earlier.

2. While holding down the MEASURE button, press the MEM button momentarily. The reading

on the display at the time of the MEM button press (initial reading) will be stored in the

current reading set and the MIN/MAX/AVG tracking will begin. Note the reading set

memory location on the lower right-hand corner of the LCD.

3. The MIN/MAX/AVG readings are calculated over the course of the measurement session

(starting from when the MEM button is pressed and ending when the MEASURE button is

released). MIN/MAX/AVG readings are stored in the same reading set as the ‘initial

reading’.

4. Release the MEASURE button to end the measurement session.

5. Now, momentary presses of the MEM button step through the initial reading, MAX, MIN,

and AVG readings stored in the current memory location. Note that subsequent presses

of the MEM button step through the remaining nine memory locations; be sure to note

the memory location number when reviewing data to avoid confusion.

6. When recalling data, press and hold the MEM button to quickly jump from one reading set to

another. The reading set number, on the lower right, scrolls while the MEM button is held.

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Datalogging more than one Reading Set per Measurement Session

If the MEM button is pressed momentarily, during a measurement session, the reading set

will be created for that measurement session (one reading set for each MEM press). This is

useful if more than one ‘initial reading’ is desired for a given measurement session. The

MIN/MAX/AVG values logged in each reading set represent the MIN/MAX/AVG values

recorded between the MEM presses. See the time‐line example below:

MEAS‐01: MEASURE button is pressed (measurement session begins)

A: No logging during this period

MEM01: MEM button is pressed momentarily, logging begins into location ‘Data 0’

B: Reading set ‘Data 0’ logs initial reading and MAX/MIN/AVG readings

MEM02: MEM pressed again, previous log (data 0) ends and new log (data 1) begins

C: Reading set ‘Data 1’ logs initial reading and MAX/MIN/AVG readings for this time period

MEAS‐02: MEASURE button is released (measurement session and logging ends)

Battery Replacement

The low battery indication appears as BAT on the display. To replace the battery, loosen the

Philips head screw securing the rear battery cover and lift the cover off. Replace the 9V

battery and replace cover.

Never dispose of used batteries or rechargeable batteries in household waste. As

consumers, users are legally required to take used batteries to appropriate

collection sites, the retail store where the batteries were purchased, or wherever

batteries are sold.

Disposal: Do not dispose of this instrument in household waste. The user is

obligated to take end‐of‐life devices to a designated collection point for the disposal

of electrical and electronic equipment.

Other Battery Safety Reminders

•Never dispose of batteries in a fire. Batteries may explode or leak.

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Specifications

General Specifications

Time base Quartz crystal

Display 5‐digit LCD Display

Laser light source Class 2 laser < 1mW power; Wavelength is 630 to

670nm

Detecting Distance 50 to 500mm (2 to 20")

Sampling Time 0.5 seconds (over 120 rpm)

Tachometer accuracy ± (0.05% reading + 1digit)

Memory Measurement data are stored in ‘reading sets’. A

reading set consists of

One (1) instantaneous measurement plus

MIN/MAX/AVG readings.

Ten reading sets’ are available per measurement

session

Operating Conditions 0 °C to 50 °C (32 °F to 122 °F); RH 80% Max

Power Supply 9V battery

Power Consumption 45mA DC approximately

Weight 151g (5.3oz.)

Size 160 x 60 x 42 mm (6.2 x 2.3 x 1.6")

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Measurement Range Specifications

Range

Resolution

Accuracy

Photo‐Tachometer

Revolutions per

0.1 rpm (2.0 to

9999.9

2 to 200,000 RPM

RPM) 1 rpm (>

9999

0.05% of

reading + 1

minute

rPm)*

digit

Frequency

0 to 1666 Hz

1 Hz

Contact‐

Tachometer

Revolutions per

0.001 rpm (2.0 to

9999.9

2 to 19,999 rpm

RPM) 1 rpm (>

9999

minute

rPm)*

0 to 2000 meters

per

1 m/min

minute

Surface Speed

0 to 78,740 inches

per

1 in/min

minute

0 to 6560 feet per

minute

1 ft/min

0 to 2186 yards per

minute

1 yd/min

0.05% of

reading + 1

0.1 to 1000 meters

0.1 meter

digit

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Length

3.9 to 39,370

inches

0.1 inch up to

9999.9

(using

circumference

1 inch > 9999

wheel

attachment)

0.3 to 3280 feet

0.1 inch

0.1 to 1093 yards

0.1 yard

Revolutions

(counter

for custom sized

0 to 99,9999

Revolutions

1 revolution (REV)

wheels)

Frequency

0 to 1666 Hz

1 Hz

*Note that when RPM is mixed case (rPm) it represents readings >9999 with a

resolution of ‘1’ and when it is upper case (RPM) if represents the range 0.2 to

9999.9 with 0.1 resolution.

Warranty Information

Triplett / Jewell Instruments extends the following warranty to the original

purchaser of these goods for use. Triplett warrants to the original purchaser for

use that the products sold by it will be free from defects in workmanship and

material for a period of (1) one year from the date of purchase. This warranty

does not apply to any of our products which have been repaired or altered by

unauthorized persons in any way or purchased from unauthorized distributors so

as, in our sole judgment, to injure their stability or reliability, or which have been

subject to misuse, abuse, misapplication, negligence, accident or which have

had the serial numbers altered, defaced, or removed. Accessories, including

batteries are not covered by this warranty

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