Starrett 2900 User Manual

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User Manual

2900 Series Electronic Indicator

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2900 Indicator User Manual

Table of Contents

Guidelines for Indicator Care ......................................................................... 2

Operating Instructions ...................................................................................3

Indicator Components, Dimensions & Layout ................................................3

Button Functions ...........................................................................................4

2900 Indicator Models, Feature Level & Resolution ....................................... 5

Resolution Selection* ....................................................................................5

Setting the PRESET Function* ....................................................................... 6

Setting MIN/MAX Limits (Go/No Go)** ............................................................6

Displaying MIN/MAX/TIR Values** .................................................................8

Lock Mode* .................................................................................................. 8

Data Output Connection ................................................................................ 9

Battery Installation ........................................................................................ 9

Appendix A: Technical Speciﬁcations ...........................................................10

Appendix B: Serial Output Connector ........................................................... 11

Available with Standard & Advanced Features . ** Available only with Advanced Features

Guidelines for Indicator Care

1. Avoid dropping the indicator.

2. Avoid extreme temperatures and direct sunlight for extended periods.

3. Avoid contact with liquids and dusty environments.

4. Avoid shocks to the contact point and spindle.

5. Do not apply radial force to the spindle.

6. If the indicator is stem-mounted, protect it from being hit or bumped to avoid stem/case mechanical alignment damage.

7. Do not over-tighten the mounting mechanism. If possible, use clamp mounting rather than set screws to prevent damage to the spindle.

8. Clean the spindle frequently with a dry cloth or a chamois to prevent sluggish or sticky movement. Isopropyl alcohol may be used to remove gummy deposits on metallic parts. Do not apply lubricant to the spindle or use solvents.

9. Do not disassemble or modify the indicator.

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2900 Indicator User Manual

Operating Instructions

1. Install batteries (included with indicator).

2. Lightly clean the contact point.

3. Secure the indicator to an appropriate holding device.

4. Press the ON/OFF button to turn the indicator on.

5. Select the unit of measure (inch or millimeter) by pressing the IN/mm button. (Not applicable to metric indicator models).

6. Place the indicator perpendicular to the reference surface being measured. Allow enough movement to be able to take a higher or lower measurement.

7. Press the ZERO button to reset the display.

8. Lift the spindle, remove the reference surface and place the work piece to be measured. Put the spindle carefully on to its surface. The measured value will be shown on the LCD.

9. Press and hold the ON/OFF button to turn the indicator off. If left unattended, it will turn off automatically in 30 minutes.

Indicator Components, Dimensions & Layout

1-21/32"

Stem Cap

(42.2mm)

1/4"

(6.5mm)

2-5/64" (53mm)

3/8" (9.5mm)

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Spindle Bellows

Contact Point

Spindle

Data

Cable

Battery Drawer

Stem

Back Lug

Data

Output

Cover

1/4"

(6.5mm)

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2900 Indicator User Manual

Button Functions

LOCK, RES, LIMITS and PRESET, printed in yellow, are used in conjunction with the SHIFT

button.

To engage press the SHIFT button ﬁrst. The SET icon will appear on the bottom left corner. Then press the button for the desired function.

4 & 8

1 ON/OFF Power button. Press and hold for 4 seconds. 2 +/- Plus/Minus sets the direction of the reading 3 ZERO Half a second after releasing the ZERO button the display will zero. Do

4 IN/mm Toggles the display between English or Metric modes. 5 SHIFT/SET Dual function. To enable the Lock, Resolution Selection, Preset or Limits

6 LOCK Prevents operator modiﬁcation to the Settings. Press SHIFT/SET button,

7 RES Resolution. First select the Unit (English/Metric). Press SHIFT/SET then

8 LIMITS Sets the Min and Max values for the Go/No Go function. 9 PRESET Press the SHIFT/SET button then press the PRESET button to enable the

10 ZERO/ABS Dual Function. Press and hold for two seconds to activate the ABS mode

11 HOLD Press HOLD momentarily to capture a reading. The captured reading will

12 MIN/MAX/

TIR

not move from zero during that half second.

(Go/No Go) function. When enabled, SET icon will show in the bottom left corner of the display.

then press and hold the LOCK button (after setting the other functions).

the RES (Plus/Minus) buttons. Press the RES button to scroll through choices and press the SHIFT/SET to make the selection.

PRESET function.

or to exit the ABS mode. To zero the display, see #3 above.

ﬂash on and off. To disable, press the HOLD button again. Displays the minimum or maximum values captured during operation.

The TIR function displays the difference between the captured readings.

6 & 12

1 & 11

2 & 7

3, 9 & 10

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2900 Indicator User Manual

2900 Indicator Models, Feature Level, Resolution & Range

Cat. No. EDP Description Resolution Range

2900-1 09980 Basic English/Metric .00005"/.001mm .5"/12mm

2900-2 09981 Basic English/Metric .0001"/.001mm .5"/12mm

2900-4 09983

2900-6 09985

2900-1M 09986 Basic Metric .001mm 12mm

2900-4M 09988

2900-6M 09990

Standard English/Metric with Selectable Resolution

Advanced English/Metric with Selectable Resolution

Standard Metric with Selectable Resolution

Advanced Metric with Selectable Resolution

.0005"/.0001"/.00005" .01mm /.001mm

.01mm /.001mm 12mm

.5"/12mm

Resolution Selection*

Enter the resolution SET mode by pressing the SHIFT/SET button followed by the RES button. The choices are displayed sequentially from highest to lowest. The round off accommodates the range of values in the table (right).

After selecting the desired resolution, press the SET/SHIFT button to exit the resolution mode. When the mode is entered, the resolution selection is presented in the units previously set (English or metric). Press IN/mm to toggle units selection, as required.

Round Off Condition

Round Off Enabled 000.00005 0000.001

Round Off Disabled 000.0001 0000.001

Round Off Enabled 000.0005 0000.01

Round Off Disabled 000.001 0000.01

English

Inch Mode

Metric

mm Mode

Press Then

Press

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to enter Resolution Mode

to cycle through the available resolutions

to pick the resolution and exit resolution mode

* Available with Standard & Advanced Features

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2900 Indicator User Manual

Setting the PRESET Function*

1. To set a value, press and hold the ZERO/ABS button until the ABS icon appears in the upper right corner of the LCD (right). The values can be SET to: +/-99.99999" or +/-9999.999mm.

2. Press the SHIFT/SET followed by the PRESET button. The SET and PRESET icons will appear in the lower left corner of the LCD. The PRESET icon will be ﬂashing (middle right).

3. To move from the PRESET icon to a digit, press the SHIFT/SET button. A ﬂashing digit indicates that it is ready to be SET (lower right). Press the PRESET button to increment the value. To set, press the SHIFT/SET button.

4. To move to the next digit press the SHIFT/SET button and repeat step 3. Repeat steps 2 and 3 until all the digits are SET.

5. To set a negative value, press PRESET when the plus/minus sign icon is ﬂashing.

6. To exit the PRESET function, press the PRESET button when the PRESET icon is ﬂashing. The SET value will remain displayed.

7. Press and hold the ZERO/ABS button to return to the active measuring mode.

Press Then

to enter Preset Mode

Press

to cycle from digit to digit and back to preset

to increment the value of the digit or the plus/minus sign

Setting MIN/MAX Limits (Go/No Go Function)**

1. Select the units to be displayed.

2. Press the SHIFT/SET button. The SET icon will appear in the lower left corner (right).

3. Press the LIMITS button. The MIN LIMIT icon will appear in the upper middle of the display.

4. Press the SHIFT/SET button. The LIMIT icon will ﬂash on/off.

5. Adjust the spindle to the desired minimum value.

*Available with Standard & Advanced Features

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2900 Indicator User Manual

6. Press the SHIFT/SET button to capture the minimum value. The LIMIT icon will stop ﬂashing.

7. Press the LIMITS button. The MAX LIMIT icon will appear on the LCD (right).

8. Press the SHIFT/SET button. The LIMIT icon will ﬂash on/off.

9. Adjust the spindle to the desired maximum value.

10. Press the SHIFT/SET button to capture the maximum value. The LIMIT icon will stop ﬂashing.

11. Press the LIMITS button. The LIMIT and the SET icon will remain on. The MAX and MIN icons will stay off as long as the reading is within the set limits. If the measurement is beyond the set limits the display will ﬂash and the MIN or MAX LIMIT icon will indicate the direction the limit have been exceeded. To exit Press the LIMITS button.

Press Then

Press

The LIMIT icon will ﬂash on/off

to increment the value of the digit or the plus/minus sign.

Then press

Press

The MAX icon will appear.

The LIMIT icon will ﬂash on/off.

Adjust the spindle to the value that you want

Then press

Press

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The Indicator is now set up with a maximum and minimum limit range

To exit the LIMIT mode.

to enter Min Limit Mode

To capture the minimum value. The LIMIT icon will stop ﬂashing.

To capture the maximum limit. The LIMIT icon will stop ﬂashing.

** Available with Advanced Features

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2900 Indicator User Manual

Displaying MIN/MAX/TIR Values**

(TIR is “Total Indicator Reading”) Pressing the MIN/MAX/TIR button displays the MIN/

MAX/TIR values most recently measured. Press once for MIN (above right), twice for MAX

(middle right) and three times for TIR (lower right). Press a fourth time to exit. The MIN/MAX/TIR values

may be zeroed by pressing the SHIFT/SET button.

** Available with Advanced Features

Lock Mode*

The Lock Mode prevents intended or unintended operator modiﬁcations to the settings. Before activating the Lock function, preset other functions to the desired settings: Plus/

Minus for spindle direction, ABS mode, PRESET Reading, Units, Limits setting, and MIN/ MAX/TIR settings. These values are stored in memory. Then, lock these settings as follows:

1. Press the SHIFT/SET then press and hold the LOCK button.

2. The Lock icon will turn on and stay on (see right). Once the lock mode has been activated, the operator will not be able to change ABS/Normal Mode, Limits, Units, PRESET, or MAX/MIN/TIR, but will have access to the zero function and be able to view MIN/MAX/TIR readings.

3. To deactivate the lock mode repeat the process used to enter the mode. Press the SHIFT/SET then the LOCK buttons. The lock icon will turn off and stay off.

Press Then

to activate the Lock function

to deactivate the Lock function

*Available with Standard & Advanced Features

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2900 Indicator User Manual

Data Output Connection

To connect an output cable, remove the two small Phillips screws as shown below. Then, remove the output port cover.

Plug in the cable and secure it with the same screws that held the cover. Orient the data cable plug as shown below. When not using output, replace the data cover to protect the electronics

Battery Replacement

Remove the two Phillips screws that secure the battery drawer as shown below. Remove the battery drawer and discard the old batteries.

Place two new CR2032 batteries into the tray with the positive (+) side facing up. Slide the tray carefully into the indicator and secure with the two screws.

To order CR2032 batteries, specify: PT99492. EDP 65650

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2900 Indicator User Manual

Appendix A: Technical Speciﬁcations

Power Requirements and Current Consumption

Battery 2 – CR2032 Lithium Coin Cells

Automatic Sleep Time 30 minutes of non-use

SPC Serial Output

18 ASCII Characters 1 Space character

Communication Protocol

Baud Rate 4800 Data Bits 8 Parity None Stop Bits 2 Flow Control None Data Request and

Response Timing

Capacity 240 mAh

2 Status characters indicating the operating mode BLANK Normal mode OL Displacement outside Lower Limit OU Displacement is outside the Upper Limit MN Displacement is minimum peak displacement stored MX Displacement is minimum peak displacement stored TR Displacement is the T.I.R. stored LL Displacement is the lower or minimum limit setting LU Displacement is the upper or maximum limit setting HL Displacement is a held displacement 1 Sign character (minus but no plus) 1 Space character (IN mode only) 6 Digits 1 Decimal point 2 Spaces 2 Character strings to indicate units “IN” or “mm” 1 Carriage return 1 Line feed

Receive High to Low Momentary Response Time Delay 120 ms Transmit Time 45 ms

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Appendix B: Serial Output Connector

Pin 1 GND – Signal return Pin 2 Serial Receive Data Input (RX/RQST) Pin 3 Serial Transmit Data Output (TX/DATA) Pin 4 Remote Zero – Special Order Only

State Change High to Low

Serial Input Voltage Level Speciﬁcation

Logic “0” Vin < 1.30 Volts Logic “1” Vin > 1.98 Volts

Serial Output Voltage Level Speciﬁcation

Minimum Maximum

Low Level Vss

High Level Vdd –0.25 @ 1.25 mA Load

Note: Vss = 0 Volts, Vdd = 2.7 to 3.6 Volts

Environmental Consideration

Temperature 10-30 °C, Humidity 30-85%RH (no condensation) Atmosphere Non-corrosive, Non-ﬂammable

2900 Indicator User Manual

Pin 2

Pin 1

Pin 4

Pin 3

Vss +0.25 @ -1.5mA Load

Vdd

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Form 966 09/11 1M/ Speciﬁcations subject to change.