Precisa 490 Series User manual

Series 490 Service manual
Service-Anleitung
Precisa Gravimetrics AG Moosmattstrasse 32 Box 352 CH-8953 Dietikon
SERVICE
MANUAL
SERIES 490
Copyright
These service instructions are protected by copyright. All rights reserved. No part of the service instructions may be reproduced,
processed, duplicated or published in any form by photocopying, microfilming, reprinting or other process, in particular electronic
means, without the written agreement of Precisa Gravimetrics AG.
Diese Service-Anleitung ist urheberrechtlich geschützt. Alle Rechte vorbehalten. Kein Teil der Serviceanleitung darf ohne schrift-
liche Genehmigung der Precisa Gravimetrics AG in irgendeiner Form durch Fotokopien, Mikrofilm, Nachdruck oder andere Ver-
fahren, insbesondere auch elektronischer Art, reproduziert, verarbeitet, vervielfältigt oder verbreitet werden.
© Precisa Gravimetrics AG, 8953 Dietikon, Switzerland, 2006.
Order no.
350-8108 Index c2 Service manual cpl. Service-Anleitung kpl.
350-7903 Index c2 Content only nur Inhalt
Technische Änderungen vorbehalten
Subject to technical modification

Series 490 Contents
Inhaltsverzeichnis
Precisa Gravimetrics AG Index c2 i 1
Contents / Inhaltsverzeichnis
SERVICE
MANUAL
SERIES 490
Section A: Accessories / Kapitel A: Zubehör - - - - - - - - A1
1. Bracket mounted on balance / Halter für Terminal an Waage 350-8655 ........ A2
2. Wall bracket / Wandhalter 350-8654................................................................... A3
3. Remote display freestanding / Zweitanzeige freistehend 350-8504 ............... A4
3.1 Schematic Board / Schema Print 350-7242-010.............................................................. A5
3.2 Assembly Board / Bestückung Print 350-7242-010 ....................................................... A10
3.3 Parts list / Stückliste 350-7242-010................................................................................ A12
4. Remote display wall mounted / Zweitanzeige Wandmontage 350-8516....... A14
5. Interface RS232 / Schnittstelle RS232 350-8506............................................. A16
5.1 Schematic Board / Schema Print 350-7241-010............................................................ A17
5.2 Assembly Board / Bestückung Print 350-7241-010 ....................................................... A22
5.3 Parts list / Stückliste 350-7241-010................................................................................ A23
6. Interface 20 mA current loop / 20 mA Stromschleife 350-8526 .................... A24
6.1 Schematic Board / Schema Print 350-7245-010............................................................ A25
6.2 Assembly Board / Bestückung Print 350-7245-010 ....................................................... A30
6.3 Parts list / Stückliste 350-7245-010................................................................................ A31
7. Ethernet-Box 350-8573...................................................................................... A32
7.1 Schematic Board / Schema Print 350-7255-010............................................................ A33
7.2 Assembly Board / Bestückung Print 350-7255-010 ....................................................... A38
7.3 Parts list / Stückliste 350-7255-010................................................................................ A39
7.4 Schematic Board / Schema Print 350-7256-010............................................................ A40
7.5 Assambly Board / Bestückung Print 350-7256-010 ....................................................... A41
7.6 Parts list / Stückliste 350-7256-010................................................................................ A42
8. Analog output / Analogausgang 350-8508...................................................... A45
8.1 Schematic Board / Schema Print 350-7243-010............................................................ A46
8.2 Assembly Board / Bestückung Print 350-7243-010 ....................................................... A51
8.3 Parts list / Stückliste 350-7243-010................................................................................ A52
9. Input/output module / Eingang/Ausgang Modul 350-8509 ........................... A54
9.1 Schematic Board / Schema Print 350-7244-010............................................................ A55
9.2 Assembly Board / Bestückung Print 350-7244-010 ....................................................... A60
9.3 Parts list / Stückliste 350-7244-010................................................................................ A61
10. Signal lamp / Signallampe 350-8510................................................................ A62
10.1 Schematic Board / Schema Print 350-7249-010............................................................ A64
10.2 Assembly Board / Bestückung Print 350-7249-010 ....................................................... A69
10.3 Parts list / Stückliste 350-7249-010................................................................................ A70

Series 490 Contents
Inhaltsverzeichnis
Precisa Gravimetrics AG Index c2 i 2
11. Horn for signal lamp / Horn zu Signallampe 350-8533................................... A71
12. Multiplexor for 7 balances / Multiplexer für 7 Waagen 350-8513 ................. A72
12.1 Schematic Board / Schema Print 350-7252-010............................................................ A73
12.2 Assembly Board / Bestückung Print 350-7252-010 ....................................................... A78
12.3 Parts list / Stückliste 350-7252-010................................................................................ A79
13. Below the balance weighing feature
Unterflur-Wägevorrichtung 350-8630 ............................................................. A80
13.1 Mounting / Dismantling below the balance weighing feature
Montage / Demontage der Unterflurwägung.................................................................. A81
14. Below the balance weighing feature IP 65 /
Unterflur-Wägevorrichtung IP 65 350-8635 .................................................... A84
15. Dust cover terminal / Staubschutz Terminal 490-4002 .................................. A85
16. UPS - power supply / USV - Stromversorgung 350-7420............................... A86
Section B: Mechanics / Kapitel B: Mechanik - - - - - - - - B1
1. Balance complete / Waage komplett ................................................................. B2
2. Balance IP65 complete / Waage IP65 komplett................................................. B3
3. Base bottom / Boden Unterteil ........................................................................... B4
4. Terminal / Terminal.............................................................................................. B6
4.1 Label Series 490 490-XXXX-... ....................................................................................... B8
5. Terminal IP65 / Terminal IP65............................................................................. B9
6. Weighing cell till 30kg / Wägezelle bis 30kg ................................................... B12
7. Weighing cell 60kg/ Wägezelle 60kg............................................................... B14
8. Cross holder complete / Quersteg komplett................................................... B16
9. Calibration / Kalibrierung 490-8500 ................................................................. B17
Section C: Electronics / Kapitel C: Elektronik - - - - - - - C1
1. Main board / Hauptprint 490-7200-020............................................................... C2
1.1 Schematic / Schema 490-7200-020................................................................................. C2
1.2 Assembly / Bestückung 490-7200-014 ............................................................................ C9
1.3 Bill of material / Stückliste 490-7200-020....................................................................... C11
2. Smartbox board / Smartbox Print 490-7201-010............................................. C14
2.1 Schematic / Schema 490-7201-010............................................................................... C14
2.2 Assembly / Bestückung 490-7201-010 .......................................................................... C19
2.3 Bill of material / Stückliste 490-7201-010....................................................................... C20
3. Connector board / Steckerprint 490-7203-010 ................................................ C21
3.1 Schematic / Schema 490-7203-010............................................................................... C21
3.2 Assembly / Bestückung 490-7203-010 .......................................................................... C22
3.3 Bill of material / Stückliste 490-7203-010....................................................................... C23
4. Main board load cell / Hauptprint Wägezelle 490-7204-010.......................... C24
4.1 Schematic / Schema 490-7204-010............................................................................... C24
4.2 Assembly / Bestückung 490-7204-010 .......................................................................... C32
4.3 Bill of material / Stückliste 490-7204-010....................................................................... C33

Series 490 Contents
Inhaltsverzeichnis
Precisa Gravimetrics AG Index c2 i 3
5. Display board VFD / Displayprint VFD 320-7204-010 ..................................... C36
5.1 Schematic / Schema 320-7204-010............................................................................... C36
5.2 Assembly board / Bestückung print 320-7204-010 ........................................................ C37
5.3 Parts list / Stückliste 320-7204-010................................................................................ C38
Section D: Repairs - - - - - - - - - - - - - - - - - - - - - - - - - - - - D1
1. Service tools and equipment.............................................................................. D2
1.1 Tool set series 490 (350-8572) ........................................................................................ D2
1.2 Equipment........................................................................................................................ D3
2. Opening up a balance ......................................................................................... D4
2.1 General procedure for opening up a Series 490 balance ................................................ D4
2.2 General procedure for opening up a Series 490 IP65 balance........................................ D4
3. Dismantling the weighing cell ............................................................................ D5
3.1 Removing the housing‘s top............................................................................................. D5
3.2 Removing the calibration unit (only SCS) ........................................................................ D5
3.3 Removing the weighing cell from the housing‘s bottom................................................... D5
3.4 Removing the cross holder .............................................................................................. D5
3.5 Removing the balance arm .............................................................................................. D6
3.6 Removing the coil............................................................................................................. D7
4. Replacement the flexure strap and flexure sheet............................................. D8
4.1 Replacement the flexure strap ......................................................................................... D8
4.2 Replacement the flexure sheet ........................................................................................ D8
4.3 Replacement the flexure sheet on balance arm............................................................... D9
5. Cleaning ............................................................................................................. D10
5.1 Cleaning the pot.............................................................................................................D10
5.2 Cleaning the coil ............................................................................................................D10
5.3 Final check of cleaning................................................................................................... D10
6. Assembling the weighing cell .......................................................................... D11
6.1 Assembling the coil and the balance arm ...................................................................... D11
6.2 Assembling the cross holder.......................................................................................... D11
6.3 Assembling the weighing - cell in the housins‘s bottom................................................. D12
6.4 Assembling the Selfcalibration System .......................................................................... D13
7. Adjustment......................................................................................................... D14
7.1 Set the balance to the service-mode.............................................................................. D14
7.2 Adjusting of the symmetry.............................................................................................. D14
7.3 Checking the pre-load.................................................................................................... D15
7.4 Adjusting of the corner load ........................................................................................... D15
7.5 Checking the hysteresis and unstability......................................................................... D16
7.6 Final assembly of the balance........................................................................................ D17
7.7 Checking the corner load ............................................................................................... D17
7.8 Linearisation of a balance .............................................................................................. D17
7.9 Final check of the adjustment ........................................................................................ D17
7.10 S-correction of a balance ............................................................................................... D18
7.11 Adjustment of the internal calibration weight (only SCS) ............................................... D19
8. Final control ....................................................................................................... D20
9. Error message ................................................................................................... D21

Series 490 Contents
Inhaltsverzeichnis
Precisa Gravimetrics AG Index c2 i 4
9.1 Operating error (Error disappears with correct use or application) ............................... D21
9.2 Fatal error (Balance stays still, error repair in service mode)......................................... D21
9.3 Hardware error (Balance stays still)............................................................................... D21
10. Discussion with the manufacturer................................................................... D22
Kapitel E: Reparaturen - - - - - - - - - - - - - - - - - - - - - - - - - E1
1. Service-Werkzeuge und Ausrüstung..................................................................E2
1.1 Werkzeug-Set der Serie 490 (350-8572) ......................................................................... E2
1.2 Ausrüstung....................................................................................................................... E3
2. Öffnen einer Waage..............................................................................................E4
2.1 Allgemeine Vorgehensweise beim Öffnen einer Waage Serie 490 ................................. E4
2.2 Allgemeine Vorgehensweise beim Öffnen einer Waage Serie 490 IP65......................... E4
3. Demontieren der Wägezelle.................................................................................E5
3.1 Demontage Gehäuse-Oberteil ......................................................................................... E5
3.2 Demontage der Kalibrierung (nur SCS) ........................................................................... E5
3.3 Demontage der Wägezelle aus dem Gehäuse-Unterteil.................................................. E5
3.4 Demontage des Winkelträgers......................................................................................... E5
3.5 Demontage des Waagbalkens......................................................................................... E6
3.6 Demontage der Spule ...................................................................................................... E7
4. Auswechseln des Zugbandes, der Biege- und Hängelager .............................E8
4.1 Auswechseln des Zugbandes .......................................................................................... E8
4.2 Auswechseln der Biegelager............................................................................................ E8
4.3 Auswechseln der Hängelager .......................................................................................... E9
5. Reinigung ............................................................................................................E10
5.1 Reinigung des Magnettopfes ......................................................................................... E10
5.2 Reinigung der Spule ...................................................................................................... E10
5.3 Schlusskontrolle der Reinigung...................................................................................... E10
6. Montage der Wägezelle......................................................................................E11
6.1 Montage der Spule und des Waagbalkens .................................................................... E11
6.2 Montage des Winkelträgers ........................................................................................... E11
6.3 Montage der Wägezelle in Gehäuse-Unterteil ............................................................... E12
6.4 Montage der Kalibrierung............................................................................................... E13
7. Justieranleitung..................................................................................................E14
7.1 Die Waage in den Service-Mode bringen ...................................................................... E14
7.2 Einstellung der Symmetrie ............................................................................................. E14
7.3 Kontrolle der Vorlast....................................................................................................... E15
7.4 Einstellung der Eckenlast............................................................................................... E15
7.5 Prüfen der Hysterese und der Unruhe ........................................................................... E16
7.6 Endmontage der Waage ................................................................................................ E17
7.7 Kontrolle der Eckenlast .................................................................................................. E17
7.8 Linearisierung der Waage.............................................................................................. E17
7.9 Endkontrolle der Justierung ........................................................................................... E17
7.10 S-Korrektur der Waage .................................................................................................. E18
7.11 Abgleichen des internen Kalibriergewichtes (nur SCS) ................................................. E19
8. Endkontrolle........................................................................................................E20

Series 490 Contents
Inhaltsverzeichnis
Precisa Gravimetrics AG Index c2 i 5
9. Fehlermeldungen................................................................................................E21
9.1 Bedienungsfehler (Fehler verschwindet bei korrekter Bedienung resp.Anwendung) ... E21
9.2 Fatale Fehler (Waage bleibt stehen, im Service-Mode behebbar)................................ E21
9.3 Hardware Fehler (Waage bleibt stehen) ....................................................................... E21
10. Rücksprache mit Hersteller ...............................................................................E22
11. Index of catchwords / Stichwortverzeichnis....................................................E23

Precisa Gravimetrics AG Index c2 A1
Series 490
Section A: Accessories /
Kapitel A: Zubehör

Precisa Gravimetrics AG Index c2 A2
Series 490 350-8655
1. Bracket mounted on balance / Halter für Terminal an Waage 350-8655
Key-No. Part-No. Description Bezeichnung
1PN 1100-256 Screw M5x16 Kombischraube M5x16
2PN 1100-148 Screw M4x20 ZS-Schraube M4x20
3490-7049 Levelling unit Stellfuss

Precisa Gravimetrics AG Index c2 A3
Series 490 350-8654
2. Wall bracket / Wandhalter 350-8654
Key-No. Part-No. Description Bezeichnung
1PN 1100-256 Screw M5x16 Kombischraube M5x16

Precisa Gravimetrics AG Index c2 A4
Series 490 350-8504
3. Remote display freestanding / Zweitanzeige freistehend 350-8504
Key-No. Part-No. Description Bezeichnung
1320-4009 Filter Grünfilter
2350-2045 Foot Fuss
3350-3072 Axle Welle
4350-4085 Cover Deckel
5350-4090 Foil Folie
6350-4098 Glass Displayglas
7350-5047 Housing Profil bedruckt
8350-7179 Cover shield cpl. Abdeckblech kpl.
8350-2054 Cover shield Abdeckblech
9350-7242-010 Remote display board Print Zweitanzeige
10 PN 1049-006 Socket Durchführungstülle
11 PN 1053-004 Puffer Gummipuffer
12 PN 1100-061 Screw M3x6 ZK-Schraube M3x6
13 PN 1100-062 Screw M3x8 ZK-Schraube M3x8
14 PN 1100-064 Screw M4x6 ZK-Schraube M4x6
15 PN 1500-076 Lock washer M4 Sicherungsscheibe M4
16 PN 3502-121 Cable 1,5 m Kabel 1,5 m
17 PN 1100-192 Screw M3x18 LK-Schraube M3x18
18 350-5054 Clamping piece Klemmstück
19 PN 1300-037 Nut M3 Gewinde-Einsatz M3
20 PN 1049-004 Socket Durchführungstülle

Precisa Gravimetrics AG Index c2 A5
Series 490 350-8504
3.1 Schematic Board / Schema Print 350-7242-010
8 8
7 7
6 6
5 5
4 4
3 3
2 2
1 1
D D C C B B A A
35072420a.SCH 23-06-99
Bus Unit 35072424a
S_RXD S_TXD S_CTS
S_DTR S_IDTR
Power Supply 35072423a
STDBY
Control Unit 35072421a
S_RXD
S_TXD
S_CTS
S_DTR
S_IDTR
CS_DISP
STDBYIO[0..7]
Application Remote-Display 35072422a
CS_DISP
IO[0..7]
IO[0..7]
VCC +5VVDD
GND VSS

Precisa Gravimetrics AG Index c2 A6
Series 490 350-8504
8 8
7 7
6 6
5 5
4 4
3 3
2 2
1 1
D D C C B B A A
N.C. M-TXD M-CTS VDC GND M-RXD M-DTR BUSDET N.C. M-TXD M-CTS VDC GND M-RXD M-DTR BUSDET FRAME FRAME
35072424a.SCH 23-06-99
-12V
+12V
GND GND
GND GND
VCC
VDC_BUS
-12V-12V
VCC
GND
GND
GND
VCC
U2A
14C88
2 3
1
L1
U2B
14C88
4 5
6
L2
U2D
14C88
12 13
11
7
14
U2C
14C88
9
10
8
U1A 14C89
13
2
U1C 14C89
108
9
U1D 14C89
1311
12
U1B 14C89
46
5
R2 10k
D3
BAW56
3 1
2
D2 BAW56
3 1
2
D1 BAW56
3 1
2
R4 100k
R3
10k
Q1
BC817
JP2
HEADER 9
1 2 3 4 5 6 7 8 9 JP1
HEADER 9
1 2 3 4 5 6 7 8 9
R1 10k
C3 22pF
R5 47R
R6 47R R7 47R R8 47R
S_RXD S_DTR
S_TXD
S_CTS
S_IDTR

Precisa Gravimetrics AG Index c2 A7
Series 490 350-8504
8 8
7 7
6 6
5 5
4 4
3 3
2 2
1 1
D D C C B B A A
VDC_EXT
(+16.1V)
(ca.+30V)
35072423a.SCH 23-06-99
VSENSE
VSENSE
PWM4
PWM4
VDC
+5V
+5V
VDC
+5VVDD
VDC
VAUX VAUX
VAUX
VCC
GND
GND GND GND
GND GND
GND
GND
GND
GND
GND GND
GND
GNDGND GND VSS
VAUX
GND
GND
GND
VDC_BUS
+12V -12V +5V
VDISP
VAC1 VAC2
VDC
GND
+5V
GND
GND
GND GNDGND
GND
GND
GND
R20
12k
R19 2k2
R21
2k2
R18 47k
Q6 BCP52
L3 500uH
D16
1N5819
C14
220uF
C17
220uF
C13
220uF
C15
220uF
D6
1N5819
C16
47uF
C21
47uF
C5
100nF
Q9 BD680
C8
100nF
U13D 74HC132
12 13
11
D7
1N4448
D11
BAW56
31
2
D10
BAT54C
2
3 1
D8
1N4448
Q5 BCP55
D9
1N4448
C18
10uF
C19
10uF
U7 79L12
2
3
1
IN
GND
OUT
U6 78L12
1
2
3
IN
GND
OUT
C4
100nF
D15
1N5819
U3 LM2575
1
3
5
2 4
C10
100nF
L4 500uH
J1
PWRJACK SW
C6
100nF
Q3 BC817 R17 4R7 Q4 BC807
R14 100k
C7 1nF
R12
100k
C11 47uF
D14
1N4448
C20
10uF
U13C 74HC132
9
10
8
D12
1N4448
D13
1N4448
Q8 BCP52
C12
47uF
U4 LM3524
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16
U5A
4069S
1 2
147
R11 10k
U5C
5 6
R9 10k
U5D
9 8
R10
2k2
U5B
4069S
3 4
U5F
13 12
C9
10nF
R15 2k2
U5E
4069S
11 10
R16
47k
R13 330R
Q7 BCP55
D4 1N4004
D5
Q2
BSP319
1
23
C22 220uF
STDBY

Precisa Gravimetrics AG Index c2 A8
Series 490 350-8504
8 8
7 7
6 6
5 5
4 4
3 3
2 2
1 1
D D C C B B A A
35072422a.SCH 23-06-99
G1
G3
G3
G5
G5
G7
G9
P16
G1 P1
G2 P2
G3 P3
G4 P4
G5 P5
G6 P6
G7 P7
G8 P8
G9 P9
G10 P10
P1 P11
P2 P12
P3 P13
P4 P14
P5 P15
P6 P48
P7 P32
P8 P34
P9 P36
P10 P38
P11 P40
P12 P42
P13 P44
P14 P46
P15
P16
P31
P30
P29
P28
P27 G2
P26 G2
P25 G4
P24 G4
P23 G6
P22 G8
P21 G10
P20 G10
P19 P17
P18 P18
P17 P19
P49 P20
P48 P21
P47 P22
P46 P23
P45 P24
P32 P25
P33 P26
P34 P27
P35 P28
P36 P29
P37 P30
P38 P31
P39 P49
P40 P33
P41 P35
P42 P37
P43 P39
P44 P41
P43
P45
P47
IO1 IO2
IO7
IO4
IO3 IO0
IO6
IO5
GND
VDISP VDISP
VAC1 VAC2
GND
VCC
GND GNDGND
U8
5818EPF
3
4
5
7
8
9
10
11
12
13
14
15
16
17
19
20
25
26
27
30
31
32
33
34
35
36
37
38
39
40
41
42
24
23
43
21
1
O32
O31
O30
O29
O28
O27
O26
O25
O24
O23
O22
O21
O20
O19
O18
O17
O16
O15
O14
O13
O12
O11
O10
O9
O8
O7
O6
O5
O4
O3
O2
O1
CS
CLK
DIN
BLK
VDIS
U9
5818EPF
3
4
5
7
8
9
10
11
12
13
14
15
16
17
19
20
25
26
27
30
31
32
33
34
35
36
37
38
39
40
41
42
24
23
43
21
1
O32
O31
O30
O29
O28
O27
O26
O25
O24
O23
O22
O21
O20
O19
O18
O17
O16
O15
O14
O13
O12
O11
O10
O9
O8
O7
O6
O5
O4
O3
O2
O1
CS
CLK
DIN
BLK
VDIS
U16
24C08
1 2 3
7 6 5 4 8A0
A1 A2
RC SCL SDA VSS VCC
DISPLAY1
10-LT-55GK
1
6
7
8
9
10
11
12
13
14
15
2
68
16
17
19
20
21
22
23
24
18
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
25
44
45
46
47
48
49
50
51
42
43
53
54
55
56
57
58
59
60
61
62
63
52
64
3
69
67
F1
G1
G2
G3
G4
G5
G6
G7
G8
G9
G10
F1
F2
P1
P2
P4
P5
P6
P7
P8
P9
P3
P11
P12
P13
P14
P15
P16
P31
P30
P29
P28
P27
P26
P25
P24
P23
P22
P10
P19
P18
P17
P49
P48
P47
P46
P45
P21
P20
P33
P34
P35
P36
P37
P38
P39
P40
P41
P42
P43
P32
P44
F1
F2
F2
R23 1k R24 1k R25 10k
R26 10k
SW1 SW DIP-4
1 2 3
8 7 6
4 5
R28 10R
C2 10nF
C30 10uF
IO[0..7]
CS_DISP

Precisa Gravimetrics AG Index c2 A9
Series 490 350-8504
8 8
7 7
6 6
5 5
4 4
3 3
2 2
1 1
D D C C B B A A
A15’
35072421a.SCH 23-06-99
A0 D0 D0 A0 D0 A1 D1 D1 A1 D1 A2 D2 D2 A2 D2 A3 D3 D3 A3 D3 A4 D4 D4 A4 D4 A5 D5 D5 A5 D5 A6 D6 D6 A6 D6 A7 D7 D7 A7 D7 A8 A9 A8 A10 A9 A11 A10 A12 A11 A13 A12 A14 A13 A15 A14
A15 IO0
IO1 IO2 IO3 IO4 IO5 IO6 IO7
A0 D0 A1 D1 A2 D2 A3 D3 A4 D4 A5 D5 A6 D6 A7 D7 A8 A9 A10 A11 A12 A13 A14
A15
IO[0..7]
VCC
VCC VDD
VCC
VCC VCC
VCC
GND
GND
GND VSS
GND
GND GND
GND
GND
GND
GND
QZ1
11.0592 MHz
U11B 74HC132
4 5
6
U11D 74HC132
12 13
11
U11C 74HC132
9
10
8
U12 74HC373
3 4 7 8
13 14 17 18
1
11
2 5 6 9 12 15 16 19
D0 D1 D2 D3 D4 D5 D6 D7 OC G
Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7
C29
22pF
C28
22pF
R22
10k
C23
100nF
C25
100nF
C24 100nF
U15 62256
10
9 8 7 6 5 4 3
25 24 21 23
2
11 12 13 15 16 17 18 19
26
1
20 27 22
A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12
D0 D1 D2 D3 D4 D5 D6 D7
A13 A14 CS
WR OE
U13B 74HC132
4 5
6
C26
100nF
U13A 74HC132
1 2
3
U11A 74HC132
1 2
3
C27 10uF
U10 27C512
10
9 8 7 6 5 4 3
25 24 21 23
2
26 27
11 12 13 15 16 17 18 19
22 20
1
A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14
O0 O1 O2 O3 O4 O5 O6 O7
OE/VPP
CE A15
U14 80C32_PLCC
35 21 20 10 14 15 16 17 2 3 4 5 6 7 8 9
43 42 41 40 39 38 37 36 24 25 26 27 28 29 30 31 19 18 32 33 13 11
EA/VP
X1 X2
RESET
INT0 INT1
T0 T1
P1.0/T2
P1.1/T2EX
P1.2 P1.3 P1.4 P1.5 P1.6 P1.7
P0.0 P0.1 P0.2 P0.3 P0.4 P0.5 P0.6 P0.7 P2.0 P2.1 P2.2 P2.3 P2.4 P2.5 P2.6 P2.7 RD
WR PSEN ALE/P TXD RXD
IO[0..7]
S_TXD S_CTS
S_IDTR
S_RXD CS_DISP
STDBY
S_DTR

Precisa Gravimetrics AG Index c2 A10
Series 490 350-8504
3.2 Assembly Board / Bestückung Print 350-7242-010

Precisa Gravimetrics AG Index c2 A11
Series 490 350-8504

Precisa Gravimetrics AG Index c2 A12
Series 490 350-8504
3.3 Parts list / Stückliste 350-7242-010
Item Quantity Reference Type Part
1 2 C9,C2 10nF PN 3440-310
2 3 C3,C28,C29 22pF PN 3440-022
3 9 C4,C5,C6,C8,C10,C23,C24,C25,C26 100nF PN 3440-411
4 1 C7 1nF PN 3440-210
5 4 C11,C12,C16,C21 47uF PN 3428-648
6 5 C13,C14,C15,C17,C22 220uF PN 3426-722
7 5 C18,C19,C20,C27,C30 10uF PN 3428-610
8 1 DISPLAY1 10-LT-55GK PN 3260-019
9 4 D1,D2,D3,D11 BAW56 PN 3145-001
10 2D5,D4 1N4004 PN 3210-004
11 3D6,D15,D16 1N5819 PN 3210-005
12 6D7,D8,D9,D12,D13,D14 1N4448 PN 3230-901
13 1D10 BAT54C PN 3145-002
14 2JP1,JP2 HEADER 9 PN 3502-100
15 1J1 PWRJACK SW PN 3512-012
16 2L2,L1 INDUCTOR PN 3680-003
17 2L4,L3 500uH PN 3680-002
18 1QZ1 11.0592 MHz PN 3881-008
19 2Q1,Q3 BC817 PN 3140-003
20 1Q2 BSP319 PN 3140-005
21 1Q4 BC807 PN 3140-004
22 2Q5,Q7 BCP55 PN 3140-001
23 2Q6,Q8 BCP52 PN 3140-002
24 1Q9 BD680 PN 3130-020
25 8R1,R2,R3,R9,R11,R22,R25,R26 10k PN 3306-310
26 3R4,R12,R14 100k PN 3306-410
27 4R5,R6,R7,R8 47R PN 3306-047
28 4R10,R15,R19,R21 2k2 PN 3306-222
29 1R13 330R PN 3306-133
30 2R18,R16 47k PN 3306-347
31 1R17 4R7 PN 3306-947
32 1R20 12k PN 3306-312
33 2R23,R24 1k PN 3306-210
34 1R28 10R PN 3306-010
35 1SW1 SW DIP-4 PN 3605-004
36 1U1 14C89 PN 3023-002
37 1U2 14C88 PN 3023-001
38 1U3 LM2575 PN 3051-001
39 1U4 LM3524 PN 3031-001

Precisa Gravimetrics AG Index c2 A13
Series 490 350-8504
40 1U5 4069S PN 3023-004
41 1U6 78L12 PN 3050-022
42 1U7 79L12 PN 3050-023
43 2U9,U8 5818EPF PN 3022-051
44 1U10 27C512 PN 3022-038
45 2U13,U11 74HC132 PN 3023-007
46 1U12 74HC373 PN 3023-011
47 1U14 80C32_PLCC PN 3022-054
48 1U15 32K/8 PN 3023-005
49 1U16 24C08 PN 3022-053
Item Quantity Reference Type Part

Precisa Gravimetrics AG Index c2 A14
Series 490 350-8516
4. Remote display wall mounted / Zweitanzeige Wandmontage 350-8516