RS PRO 877-1791 User manual

RS Stock number 877-1791
RS, Professionally Approved Products, gives you professional quality parts across all products categories. Our range has
been testified by engineers as giving comparable quality to that of the leading brands without paying a premium price.
Protection: IP 54 Splash Proof
DIN 863/1
Clear LCD Display
Metric/Inch Conversion
Relative & Absolute Modes
Resolution 0.001mm/0.0005”
Tungsten Carbide Anvils
Ratchet Stop
Spindle Lock
Setting Rods
Supplied in fitted case
Packed Weight and Dimensions
RS Code
Description
Weight g
W mm
H mm
L mm
8771791
Electronic Micrometer 0-150mm / 0 -6”
1960
265
45
425
RS Code
Range
mm/1nch
A
mm L mm
Accuracy
mm
8771791
0
-150 82 158
0.003
Power: 1 x SR44: 1.5V battery
2 Locking Device
3 Thimble
4 Ratchet Stop
5 ON/OFF & SET Button
6 ABS/INC & UNIT Button
7 Data Output button (not available)
8 Battery cover
RS, Professionally Approved Products , gives you professional quality parts across all products categories . Our range has
been testified b y engineers as giving comparable quality to that of the leading brands withou t paying a premium price .
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RS, Professionally Approved Products, gives you professional quality parts across all products categories. Our range has
been testified by engineers as giving comparable quality to that of the leading brands without paying a premium price.
Setting Instructions:
Fit the required Extension Rod, place the correct Setting Rod between the micrometer anvils and close the
spindle onto the setting rod using the ratchet stop to make the final adjustment. Proceed as below
1; Press and release ON/OFF button to switch on display
2: Press and hold UNIT button to select either Metric or Inch resolution
3: Press and release ABS/INC button to obtain ABS in display
4: Press and hold SET button until Set appears and flashes on the display
5: Press and hold SET button until Set sign disappears and the first digit start flashing
6: Press and release SET button to change first digit by 1, repeat until required number is displayed
7: Press and hold SET button to advance to the next digit
8: Repeat actions 6 & 7 until all the digits on the display have been programmed
9: Once the last digit has been programmed, press and hold the SET button until Set flashes in the display
10: Press and release SET button to cancel the flashing Set on the display
11: The micrometer is now set and ready for use
Button Functions:
ON/OFF Press and release to turn micrometer ON or OFF
*
SET Press and hold for 2 seconds for preset function in Absolute mode
ABS/INC Press and release to change between Absolute and Relative modes
*
UNIT Press and hold for either metric or inch modes
G Data Output not available
In : Inch Mode
INC : Relative Measuring
ABS : Absolute Measuring
: Battery Voltage is Low
O : Data Output
Set : Set the Origin
Hold : Display value Held
RS, Professionally Approved Products , gives you professional quality parts across all products categories . Our range has
been testified b y engineers as giving comparable quality to that of the leading brands withou t paying a premium price .
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RS, Professionally Approved Products, gives you professional quality parts across all products categories. Our range has
been testified by engineers as giving comparable quality to that of the leading brands without paying a premium price.
Products Details
Measuring Force: 5 –10N
Power Consumption: Greater than 35 milliamps
Operating Temperature: 0 –40 deg.C
Storage Temperature: -20 to 60 deg. C
Protection Class: IP54 (resistant to water splash)
Operating Care
Clean measuring faces with a clean soft cloth only
Do not use any organic solvent for cleaning such as acetone etc.
Keep instrument away from strong magnetic fields and high voltage environments which can affect the correct
working of the electronic pack
Prevent the ingress of oil and liquids into the electronics
Do not use or store the micrometer in direct sunlight, or in an excessively hot or cold environment
Remove battery if the instrument is not to be used for a long period of time
Do not disassemble or drop the instrument
Do not mark the instrument by engraving, etching or any other permanent method of marking as this will
invalidate the warranty
Fault Finding
Failure
Causes
Remedy
Display: “E 1”
Display: “Exxxxx”
Measured value is over display range
Reset the origin or change to relative
mode
Display: “E 2”
The origin is too great
Reset the origin
Display: “E 3”
Display: “E 8”
1 The micrometer is disturbed
2 Something wrong with sensor
1 Reset the battery
2 return the micrometer for repair
Measured value is not correct
1 Measuring surfaces are not clean
2 The origin is incorrect
1 Clean measuring surfaces
2 Reset the origin
Display is confused or dead
Strong disturbance to micrometer
Reset battery
No display
Display is blurring
Battery sign appears
Battery voltage below 1.45V
Replace battery
RS, Professionally Approved Products , gives you professional quality parts across all products categories . Our range has
been testified b y engineers as giving comparable quality to that of the leading brands withou t paying a premium price .
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RS, Professionally Approved Products, gives you professional quality parts across all products categories. Our range has
been testified by engineers as giving comparable quality to that of the leading brands without paying a premium price.
Cleaning and Basic Checking Procedure
Remove any oil, grease, dust or small particles which may cause damage to the micrometer or affect its
accuracy when taking measurements. Use a soft lint free cloth or paper together with a proprietary
instrument cleaning agent. Do not use acetone as this can damage parts of the micrometer
Before use check that the ratchet mechanism functions correctly
Check the spindle movement by using the ratchet stop to traverse the spindle though it’s complete
travel
Check that the measuring faces are in good condition
Check the locking mechanism works correctly
Zero Point Checking and Adjustment
Use the ratchet stop to move the spindle until it touches the fixed anvil. Allow the ratchet to turn 1 ½ to
2 revolutions for the final positioning
The zero point on the thimble should now coincide with the reference graduated base line on the sleeve
For micrometers above 25mm / 1” use the supplied setting standard or a gauge block to check the zero
position
If the zero point does not line up as required, it can be corrected by using the following procedure
When the zero point deviation on the thimble is under 2 divisions from the graduated base line
Turn the sleeve using the “C” spanner provided until correct alignment is achieved
When the zero point deviation on the thimble is over 2 divisions from the graduated base line
Hold the frame and the thimble and loosen the ratchet stop using the spanner provided
Disconnect the coupling of the thimble to the spindle by giving a light shock to the side of the thimble
Turn the thimble until the zero point is in alignment with the base line on the sleeve
Press the thimble against the spindle and re tighten with the spanner to achieve a positive coupling
Re check the zero position, any final small adjustment can now be made using the “C” spanner to re
position the sleeve to the thimble zero
Mechanical Thimble and Sleeve
Reading Example: Metric
When reading the micrometer ensure that your line of sight is directly above the graduated scale on
the sleeve and the thimble scale to avoid parallax reading errors
RS, Professionally Approved Products , gives you professional quality parts across all products categories . Our range has
been testified b y engineers as giving comparable quality to that of the leading brands withou t paying a premium price .
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