Intelligent Weighing Technology Intell-Lab IL-0.0001 g, Intell-Lab PB-0.001 g, Intell-Lab PB-0.01g Service Manual

A Higher Level of Precision…

A Higher Level of Performance

Intell-Lab™
IL 0.0001 g

PB 0.001 g
PB 0.01 g

Service Manual

Problem and solution for balances model IL-0.0001, PB-0.001 and PB-0.01g

Fau lt

Pos sible c a u se

Ser vice Ta b l e

Balance not stable.

Dirt inside the magnet.
Bandy flexures.

Mechanical group service.(Clear
the magnet)
Mechanical group
service.(change

Display doesn’t move from zero
Mechanical group damage

Error linearity
A/D converter fail

Mechanical group service
Function linearity
Check_main_board_signals_EM
C

Display doesn’t work correctly

Display damage
No power supply.
No connection display.

Change_display
Check_main_board_signals_EM
C

Keyboard fail/
At power on if balance beeps.

No connection keyboard
No bottom keyboard

Change cable 14 poli
Change keyboard

Corner load not correct

Parallelogram guide damage
Corner load not regulated

Change parallelogram guide
Corner load EMc

Linearity not correct

Regulated linearity error.
Verify bandy flexures

Function_linearity_
Mechanical group service

Mechanical group service IL-0.0001, PB-0.001, PB-0.01g

For Model IL0.0001

1. REMOVE THE BALANCE TOP COVER WITH DRAFTSHIELD (REMOVE ONE SCREW Fig.1 AND
FOUR SCREWS UNDER THE BALANCE Fig2

2. REMOVE THE COVER SHIELD OF MECHANICAL GROUP,
Fig.3

For Model PB-0.001

1. REMOVE THE BALANCE TOP COVER (REMOVE ONE SCREW Fig.1 AND FOUR SCREWS
UNDER THE BALANCE Fig2)

2. REMOVE THE COVER SHIELD OF MECHANICAL GROUP (REMOVE FOUR SCREWS Fig.3)

Fig.1

Fig.2

Fig.3

Fig.3

For Model PB-0.01

1. REMOVE THE BALANCE TOP COVER (REMOVE ONE SCREW Fig.1 AND FOUR SCREWS
UNDER THE BALANCE Fig2)

2. REMOVE THE COVER SHIELD OF MECHANICAL GROUP (REMOVE FOUR SCREWS
Fig.3)

For all Model PB-0.01, PB-0.001, IL-0.0001

1. REMOVE THE DISPLAY BOARD (REMOVE FOUR SCREWS Fig.1) AND COVER SHIELD OF
MAINBOARD (REMOVE FIVE SCREWS Fig2)

2. REMOVE THE CABLE OF OPTICAL GROUP (Fig.3) AND THEN REMOVE THE MECHANICAL
GROUP (REMOVE THREE SCREWS UNDER THE BALANCE Fig.4)

Fig.1

Fig.2

Fig.3

Fig.3

Fig.4

Disassembly group for all Model PB-0.01, PB-0.001, IL-0.0001

The mechanical group is the same for all model except for:

 dimension of springs
 dimension of spacers
 cone

1. Take jigs for the moving pillar (two screws M5x20mm and two
spacers)

2. Insert the screws in the holes (left and right) of the
moving pillar

3. Insert the spacers in the space between moving pillar
and monobloc (left and right)

4. Fix the screws left and right

5. Turn up side down the group

6. Take tool n°7

7. Remove the four screws of

bottom parallelogram guide

9. Remove parallelogram,
handling it carefully

9. Turn the group up
again

10. Remove the two
cone support’s
screws

11. Remove the cone
support

18. Take the jigs for vertical spring (n°2 screws M4x10mm, n°1
screw M4x22mm, n°1 clamping plate whit hole and n°1 tool to
fix the lever)

12. Take tool n°7

13. Remove the four
screws of top
parallelogram guide

15. Remove the top

parallelogram guide,
handle it carefully

17. Take tool n°7

17. Remove baricenter
from below the
monobloc

19. Position the jig on the
moving pillar

20. Insert two screws in the
holes of moving pillar and
fix them.

21. Insert the clamping plate.

23. Insert screw and fix
clamping plate with tool
n °3.

24. Remove top screws of

vertical spring, with tool n°3

26. Remove spacer lever for:

0.0001g= n°1x7mm,n°1x0.5mm

0.001g = n°1x4mm.

0.01g = 0mm

27. Remove screw of plate.

28. Remove screws of fixed

to moving pillar.

30. Remove jigs for
vertical spring.

29. Remove moving pillar

30. Remove screws of fixed
vertical spring with tool n°3

28. Remove the screws and

spacer fixed jigs of moving
pillar.

Spa cer of mov ing pi llar fo r:

0.0001g

= n°1x0.5mm

0.001g

= n°1x4mm

0.01g

= n°1x7mm, n°1x0.5mm

Ver tic al spri ng:

0.0001g = Vertical spring 0.5/0.10mm

0.001g = Vertical spring 0.5/0.10mm

0.01g = Vertical spring 1/0.12mm

31. Take jigs for the lever (n°4

screws M4x19mm, n°1 tool

for fixing the lever)

33. Put the jig on the lever

34. Insert two screws in

to monobloc and two in
to lever.

35. Fix the screws: first

the top ones then the
bottom ones

38. Unsolder the wire of
sensor

39. Remove n°3 screws that
fix the magnet cover

35. Unsolder the gold wires.

36. Remove n°4 screws that

the fulcrum flexures using

tool n°7.

38. Remove the fulcrum
flexures

Ful cru m fl exu res :

0.0001g = Fulcrum flexures 0.5/0.09mm

0.001g = Fulcrum flexures 0.5/0.09mm

0.01g = Fulcrum flexures 0.51/0.10mm

40. Remove magnet cover.

42. Remove n°5 grains (n°2
left and rigth side and n
°1 at rear side) that fix
the magnet.

42. Remove magnet from
below the monobloc

C. Unsolder the wire of

coil.

D. Remove n°2 screws and

spacer of coil that fix the
lever to coil.

43. Clean the magnet with
air

44. Take a taper and
precision tweezer.

45. Put taper on the top of
precision tweezer so
that adhesive side is
outside.

46. Clean deeply the
magnet turning
precision tweezer
around of magnet.

Now if you need to remove the
lever to change the coil or lever
then follow points from A to E,
otherwise go to point 43.

A. Remove jigs for

lever (Remove n
screws).

C. Remove the lever.

Now you can start assemble the mechanical group

47. Take jigs for level (n°4
screws M4x19mm, n°1
tool for fixing the lever).

48. Insert two screws in to
monobloc and two in to
lever.

49. Insert magnet from
below into monobloc

50. Put on the cover of
magnet (do not fix it).

Ful cru m fl exu res :

0.0001g = Fulcrum flexures 0.5/0.09mm

0.001g = Fulcrum flexures 0.5/0.09mm

0.01g = Fulcrum flexures 0.51/0.10mm

51. Solder the gold wires on
the lever.

52. Put fulcrum flexures with

four screws, and fix
them.(Position the flexures
with circular hole UP)

54. Remove the jig for the

57. Take the jig for the vertical spring.

59. Take jig spacer for moving pillar

61. Insert screws in the holes
(left and right) of moving
pillar

62. Insert spacer between
moving pillar and monobloc
(left and right)

63. Put the jig spacer under the
left side of moving pillar and
fix the screw on left.

64. Put the jig spacer under the
right side of moving pillar and

fix the screw on right.

Clamping plate

54. Insert two screws
(M4x22mm) with
washer.

55. Insert the spacer on
moving pillar, and vertical
spring

57. Insert Clamping plate, but
do not strongly fix the
screws.

Spacer movin pill ar for:

0.0001g

= n°1x0.5mm

0.001g

= n°1x4mm

0.01g

= n°1x7mm, n°1x0.5mm

Vertical spring:

0.0001g

= Vertical spring

0.5/0.10mm

0.001g

= Vertical spring

0.5/0.10mm

0.01g

= Vertical spring

1/0.12mm

66. Center the hole of the
vertical spring with the hole

of the lever.

68. Fix the two screws of
bottom vertical spring

70. Insert spacer of lever for:

0.0001 g=n °1 x7mm,n °1 x0.5mm

0.001g = n°1x4mm.

0.01g = 0mm

71. Insert top screws of vertical
spring, and fix them using
tool n°3

73. Remove the cover of
magnet

75. Insert jigs for centering the
lever

77. Fix the screws of coil.

79. Remove the screw that fix
the clamping plate of jig.

81. Remove screws that fix the

jig for vertical spring.

83. Remove jig for vertical
spring.

63. Put the top parallelogram
guide onto the group.

64. Insert the jigs for
centering the
parallelograms

65. Insert four top screws of
parallelogram guide and fix
them.

79. Put the bottom
parallelogram guide on
bottom of the group.

81. Insert the jigs for
centering parallelograms

83. Insert four screws of

parallelogram guide and fix

85. Turn up the group

87. Connect the group to the main board.

76. Put cone support on the
moving pillar

78. Insert two cone support’s

Screws and fix them

80. Solder the wire of

temperature sensor.

(Im por tan t: do not invert

the wires)