Starrett EC799B-8/200 User manual

Trust Is In The Name

User Manual

PKG08800- UMEC799

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

EC799 ELECTRONIC DIGITAL CALIPER

USER MANUAL

PKG08800-UMEC799 3

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

TABLE OF CONTENTS

Components 5
Characteristics 10
Precautions when Using the Caliper 11
Operating Instructions 12
Installation / Replacement of Battery 14
Output (EC799B Only) 15
Troubleshooting 16

4 PKG08800-UMEC799

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

COMPONENTS

79

1

Fig. 1A

Fig. 1B

Fig. 1C

4

Fig. 4A

Fig. 4B

Fig. 4C

23

Fig. 2

L

D

5

Fig. 5A

Fig. 5B

Fig. 3B

L < D

Fig. 3C

6

8

Fig. 8A

Fig. 7A

Fig. 9A

Fig. 3A

Fig. 3D

Fig. 6A

Fig. 6B

Fig. 7B

Fig. 8B

Fig. 9B

1110

Fig. 10A

Fig. 10B

Fig. 11A

Fig. 11B

NOTE: The pictures shown are illustrative, the components may vary according to the model.

PKG08800-UMEC799 5

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

COMPONENTS

3

9

14

1. Jaws for external measurement

2. Jaws for internal measurement

3. Depth measuring rod

6

–

4. Scribing face

11

5. Slide

5

8

7

2

4

10

6 PKG08800-UMEC799

12

13

1

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

6. Graduated scale

7. LCD display

COMPONENTS

12. "Zero" set button (red) / Power
"on/off" button

8. Slide locking screw

9. Battery cover

10. Scribing reference face

11. Fine adjustment thumb roll

13. "IN/mm" button

14. Data output port (EC799B Series)

PKG08800-UMEC799 7

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

THIS IS A STARRETT USER GUIDE FOR THE

EC799 DIGITAL CALIPER.

ALL SPECIFICATIONS IN THIS DOCUMENT ARE

CORRECT AT TIME OF PRODUCTION AND ARE

SUBJECT TO CHANGE. PLEASE CONTACT STARRETT

FOR FURTHER INFORMATION.

EC799 ELECTRONIC DIGITAL CALIPER

PKG08800-UMEC799 9

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

ENGLISH

CHARACTERISTICS

INCH MILLIMETER RANGE (MM)

1

Resolution

Accuracy*

* Meets the accuracy requirements of DIN 862.

1. Resolution: Smallest difference between indications of a displaying device that can
be meaningfully distinguished. For a digital displaying device, this is the change in
the indication when the least significant digit changes by one step (VIM).

2. Accuracy: Closeness of the agreement between the result of a measurement and a
true value of the measurand (VIM).

P.S.: VIM - International Metrology Vocabulary.

• Set zero at any position of the slide.

• Automatic on when moving the slide.

• Auto shutdown: 6-7 minutes of non-use.

• Large LCD display with active unit system: millimeter

• RS232 port on EC799B Series allows data transmission

• One lithium battery 3V CR2032.

• The display will blink on and off when the battery output

• ± 0.1V, indicating the battery should be changed.

0.0005 0.01 Up to 300 (12")
±0.001 ±0.02 Up to 100 (4)

2

±0.001 ±0.03 >100 (4"); Up to 300 (12")

"mm" or inch "in".

thru a connected cable. The Communication Settings
are; 4800 baud, 8 data bits, 1 stop bit and no parity.

is below 21uA at 2.75V

10 PKG08800-UMEC799

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

ENGLISH

PRECAUTIONS WHEN USING THE CALIPER

• Do not measure a rotating part; it is dangerous and

causes the faces in contact to wear.

• Do not expose the caliper to direct sunlight or

extreme temperatures.

• Do not apply any voltage on any part of the caliper. Any

external voltage may damage the circuitry of the caliper.

• Do not disassemble the caliper.

• Do not move the slide too fast (over 1,5m/s or 60

inches/s), this can cause measurement errors.

• Flashing of digits shows a weak battery and that it must

be replaced.

• Do not wash or immerse the caliper in any liquid.

• For care and maintenance it is important to wipe the caliper

with a lint-free cloth after exposure to moisture. Apply a very
light coat of lubricant on all the mechanical parts. Do not
use aggressive solvents to clean the plastic components.

• Keep the caliper clean and dry.

• Avoid handling the caliper with oily hands.

• Do not store the instrument in areas of extreme temperature.

PKG08800-UMEC799 11

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

ENGLISH

OPERATING INSTRUCTIONS

• Install the battery that comes with the instrument. (See
item "Installation / Replacement of battery").

• If the display is off, a quick push of the "zero - on/off"
button (12) will activate the display. A one-second push
of the same button will also zero the tool at any position
of the slide. A three-second push of the button will shut
the display off.

• To select the measurement unit needed, press the "IN/
mm" button (13). When an RS-232 cable is installed
in the output slot of the EC799B, the in/mm function is
disabled and the button becomes a send button. A one­second push of this button will also active the display
with no loss of position.

• To move the slide (5) loosen the slide locking screw (8).
Use the thumb roll (11) to move the slide.

• Clean the measuring faces with a lint-free cloth or chamois.

External measurement: close the jaws and press the
"zero" button (12) to reset the display to zero (Fig. 1A). Put
the part to be measured as close as possible to the scale
(6) (Fig. 1B) and adjust the measuring faces (1) to the part
surface (Fig. 1C). Do not apply excessive pressure when
measuring (Fig. 2).

Internal measurement: close the jaws and press the "zero"
button (12) to reset the display to zero (Fig. 3A). Introduce
the internal measuring jaws (2) as deep as possible inside
the part and adjust the measuring faces to the part surface
(Fig. 3B). To obtain the measurement of an internal diameter
see Fig. 3C and to obtain the measurement value inside a
slot see Fig. 3D.

Depth measurement: close the jaws and press the "zero" button
(12) to reset the display to zero (Fig. 4A). Keep the depth measuring
rod (3) perpendicularly to the part bottom (Fig. 4B and 4C).

12 PKG08800-UMEC799

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

ENGLISH

Cam measurement: close the jaws and press the "zero"
button (12) to reset the display to zero (Fig. 5A). Open the
jaws in a little bigger dimension than the cam, place the
scribing face (4) against the bottom of the cam and approach
the scribing reference face (10) until the part surface. The
cam value will be shown on the display (Fig. 5B).

Scribing face: close the jaws and press the "zero" button
(12) to reset the display to zero (Fig. 6A). Adjust the scribing
face (10) to the part reference, slide the cursor (5) to the
chosen measurement, lock it using the locking screw (8) and
then scribe (Fig. 6B).

Measurement for comparison: using a standard, press the
"zero" button to reset the display to zero (Fig. 7A). After that,
start measuring; the variation will be shown on the display.
Dimensions smaller than standard will be indicated with a
negative sign (Fig. 7B).

Measurement of center to center between holes or
identical pins: using one of the holes or one of the pins as a

reference, press the "zero" button (12) to reset the display to
zero (Fig. 8A and 9A). After that, start measuring; the center
to center value will be shown on the display (Fig. 8B and 9B).

Measurement of wall thickness: using a part as reference
place the caliper and press the "zero" button (12) to reset
the display to zero (Fig. 10A). Next, measure the depth using
the depth measuring rod (3). The thickness will be shown on
the display (Fig. 10B).

Measurement in places where reading is difficult to obtain:
measure and press the "zero" button (12) to reset the display
to zero (Fig. 11A). After that, close the jaws; the measurement
will be shown on the display with a negative sign (Fig. 11B) (Do
not consider the sign).

PKG08800-UMEC799 13

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

ENGLISH

INSTALLATION / REPLACEMENT OF BATTERY

• First, remove the battery cover (9) using your thumb and
a slight pressure, carefully slide the battery cover to the
right. Place your finger into the small area at the top left
of the battery and lift the battery from the tool (Fig. 12).

• To install a new battery (Fig.13), place a new battery
plus (+) side up into the battery compartment cavity as
shown, and the battery will be held in place. Line up the
battery cover, and while lightly pressing down on it, push
the cover to the left until you hear a click. The tool will
display the main measurement display.

+

Fig. 12

+

Fig. 13

14 PKG08800-UMEC799

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

ENGLISH

OUTPUT (EC799B ONLY)

• The EC799B Series caliper comes with an output port (14)
that allows data transmission to computers or printers
using the appropriate Starrett cable/ adapter or Starrett

®

wirelles interface.

DataSure

• The output connection is at the top of the caliper pointed
out in Fig.14. The output cover slides open, place your
finger into the small area with the arrows and push
towards the slide locking screw (8) pointed out in Fig.15.
When not using an output cable remember to keep this
cover closed, so that no debris collects in the output,
possibly interfering with data collection from your tool.

• The output command is controlled by the "IN/mm" button (13).

Output Cover

Fig. 14

Output Connector

Open

Fig. 15

PKG08800-UMEC799 15

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com

ENGLISH

TROUBLESHOOTING

FAILURE CAUSE SOLUTION

Five digits flash
simultaneously, about
once per

Display does not
change when the slide

Less accurate than
specified or electronic

No display on LCD. Battery in poor contact.

* THIS IS AN UNCONTROLLED COPY SO THAT THE PRODUCT MAY BE
MODIFIED AT ANY TIME WITHOUT PRIOR NOTICE.

Low battery Replace the battery

Trouble with the
electronic circuitry.

Contamination on
the sensor.

Remove the battery
and reinstall after
30 seconds.

Clean the scale. If the
problem

Remove the battery
cover and reseat the
battery to insure a
good connection.

16 PKG08800-UMEC799

Find Quality Products Online at: [e-mail]

www.GlobalTestSupply.com