Schematic Diagrams 8

 

 

VCC

 

AR1

8

 

LM358DT

 

 

6

 

7

 

 

Z1

5

1

 

1 Z3 20

4 7 K

CR15

BAW56

2 Z3 19

VCC

R 5 8

470

1 Z2 16

2 2 K

C 5 4

180PF

R 4 9

350K

4

4 7 K

470

TP19

TRIG

 

 

 

1

 

 

 

 

 

3

U14

2

 

 

 

 

 

 

 

H C 8 6

 

 

 

 

 

 

 

 

 

 

 

9

 

 

TP20

 

 

8

U28

10

 

 

 

 

 

 

 

H C 0 0

 

TOTAL

 

 

 

1

 

 

 

 

 

3

U28

2

 

 

 

 

 

 

 

H C 0 0

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

U28

5

 

U20

 

 

 

 

 

H C 0 0

 

 

 

 

 

 

 

 

 

HC4040

 

 

 

 

 

 

 

BINARY

 

 

 

 

 

 

 

 

C T R

 

1

 

 

 

 

 

 

Q11

 

 

 

 

 

 

15

 

 

 

 

 

 

Q10

 

 

 

 

 

 

14

 

 

 

 

 

 

Q

9

 

 

 

 

 

 

12

 

 

 

 

 

 

Q

8

 

 

 

 

 

 

13

 

 

D7 D6 D5 D4 D3 D2 D1 D0

 

 

Q

7

 

 

 

 

4

 

 

 

 

Q 6

2

 

1

PL

 

 

 

Q

5

 

 

 

 

3

 

 

 

 

 

Q

4

 

 

 

U 2 9

 

 

5

 

10

D S

Q 7

7

Q

3

 

 

 

 

 

 

 

 

 

12

 

 

 

11

U28

13

 

 

 

 

H C 0 0

 

 

 

 

 

 

 

U13

 

 

 

 

H C 2 4 4

 

 

0

3

3 Y

3 A

17

 

1

5

2 Y

2 A

15

 

2

7

1 Y

1 A

13

 

3

9

0 Y

0 A

11

 

 

 

 

O E

 

1019

55K

1

AR2

2Z1 L M 3 2 4 D

350K

103

55K

 

8

4 Z1

AR2

 

L M 3 2 4 D

350K

105

55K

 

7

6 Z1

AR2

 

L M 3 2 4 D

VCC 4

2

3

11

9

10

6

5

3 Z3 18

4 7 K

CR14

BAW56

9

116

U 2 7 ULN2004

4 Z3 17

4 7 K

9

215

U 2 7

ULN2004

5 Z3 16

4 7 K

2 Z2 16

2 2 K

C 4 3

180PF R 5 7

47

3 Z2 16

2 2 K

C51

180PF R 5 6

47

4 Z2 16

2 2 K

C 5 0

180PF

R 5 5 47

XT*

TOT

IO0

IO1

IO2

IO3

IO4

IO5

IO6

IO7

J5

10

9

8

7

6

5

4

3

2

1

 

Q 2

6

2

C P

 

 

 

7

15

 

9

 

Q 1

CE

Q 7

 

9

 

 

E

Q 0

 

 

 

 

 

 

 

74HCT165DT

 

10

 

VCC

 

 

19

U13

350K

107

55K

CR18

BAW56

U27

9

5 Z2 16

2 2 K

C 4 9

 

R

 

 

 

 

 

 

 

11

4

 

 

 

 

 

 

 

 

 

 

 

 

 

6

U14

 

11

U14

12

 

 

 

H C 8 6 5

 

13

 

 

 

 

 

 

H C 8 6

 

VCC

 

 

 

 

 

 

 

C41

C36

 

 

 

 

 

 

25V

.1

 

 

 

 

 

 

.1

25V

 

 

 

 

 

 

RD*

 

 

 

 

 

1

 

 

 

9

U10

 

 

U12

SH3

 

 

10

8

2

H C 0 0

 

 

0

11

H C 2 7

 

 

 

 

 

1

 

 

 

4

 

 

 

 

 

 

 

5

U12

 

 

 

 

 

 

H C 0 0

DIO*

 

 

11

 

 

 

 

SH3

 

 

 

U15

13

 

 

WR*

 

 

12

H C 0 2

 

 

 

SH3

 

 

 

 

 

 

 

 

 

 

H C 2 4 4

 

 

 

4

12

3 Y

 

3 A

8

 

5

14

2 Y

 

2 A

6

 

6

16

1 Y

 

1 A

4

 

7

18

0 Y

 

0 A

2

 

 

 

O E

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

U26

 

7

18

HC273

 

19

 

D

7

Q

7

 

6

17

16

 

D

6

Q

6

 

5

14

15

 

D

5

Q

5

3

4

13

12

D

4

Q

4

 

3

8

9

 

D

3

Q

3

 

2

7

6

 

D

2

Q

2

 

1

4

5

 

D

1

Q

1

 

0

3

2

 

D 0

Q

0

 

 

 

 

6

 

11

 

CL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

U16

 

7

18

HC273

 

 

19

 

D 7

Q

7

 

 

6

17

 

16

 

D 6

Q

6

 

 

5

14

 

15

 

D 5

Q

5

 

 

4

13

 

12

 

D 4

Q

4

 

 

8

8 Z1

AR3

 

LM324D

350K

109

55K

 

14

12 Z1

AR3

 

LM324D

350K

1011

55K

 

14

14 Z1

AR2

 

LM324D

350K

1013

55K

 

1

16 Z1

AR3

 

LM324D

9

10

13

12

13

12

2

3

314

ULN2004

6 Z3 15

47K

U27 9

413

ULN2004

7 Z3 14

47K

CR19

BAW56

U27 9

512

ULN2004

8 Z3 13

47K

U27 9

611

ULN2004

9 Z3 12

47K

180PF R 5 4

47

6 Z2 16

2 2 K

C48

180PF R 5 3

47

7 Z2 16

22K

C47

180PF

R 5 2

47

8 Z2 16

22K

C46

180PF

R51

47

 

 

 

 

 

 

 

 

VCC

 

U17

 

9

 

 

14

Z2

16

 

 

 

 

 

 

2 2 K

 

5

 

 

12

 

 

R 5 9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C55

47

 

ULN2004

 

 

 

 

 

 

180PF

 

 

 

 

 

 

 

U17

9

 

 

13

Z2

16

 

 

 

 

 

2 2 K

 

4

 

 

 

13

 

R 6 0

 

 

 

 

 

 

 

 

 

 

 

C56

47

 

ULN2004

 

 

 

 

180PF

 

 

 

 

 

 

 

U17

9

 

12

Z2

16

 

 

 

 

2 2 K

 

 

3

 

 

 

14

 

R61

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C57

47

 

 

ULN2004

 

 

 

180PF

 

 

 

 

 

 

 

 

 

 

 

 

 

Z2

 

J6

1

2 OUT3 3 OUT2 4 OUT1 5 OUT0 6

DCL 7 8

D CH

L1 L2

3

8

D 3

Q 3

9

2

7

6

D 2

Q 2

1

4

5

D 1

Q 1

0

3

2

D 0

Q 0

350K

1015

55K

CR16

BAW56

U27

9

9 Z2 16

22K

C45

U17

9

11

2 2 K

16

2

 

15

R62

 

 

 

 

 

 

47

1T 6T

 

9

 

2

10

U12

H C 0 0

A<2..0>

SH3

8

11

 

CL

 

1

7

VCC 4

6

710

ULN2004

10 Z3 11

180PF

R50

47

ULN2004

C58

180PF

 

C52

180PF

RESET*

SH3

AR3

18 Z1 LM324D

350K

10

17

 

55K

5

11

47K

U17

9

10 Z2 16

22K

C44

C53

1000PF

D<7..0>

116

SH3

U N U S E D

VCC9

U14 8

10H C 8 6

VCC

R37

15K

R35

4.7K

U17 9

611

ULN2004

U17 9

710

ULN2004

 

 

AR1

TP18

 

 

 

 

 

3

VCC

 

 

 

1

 

 

2

Q 9

 

 

MMBT5089

R36

C29

 

15K

.1

LM358DT

16 Z2 15

 

25V

 

 

 

22K

ULN2004

CR17

M MBD70 0 0

180PF

RV1

39V

DO _ GND

SH2

DCL

DCH SH2

2620A-1001

(4 of 4)

s74f.eps

Figure 8-1. A1 Main PCA (2620A/2625A) (cont)

8-7

Page 288 Page 290
Page 289
Image 289
Fluke 2625A, 2635A service manual U S E D
Page 288 Page 290

2635A, 2625A specifications

The Fluke 2625A is a sophisticated data logger designed for a wide range of industrial and laboratory applications. This versatile instrument excels in capturing and monitoring temperature and voltage measurements with precision and reliability. One of its standout features is its ability to record data from various sensors, making it ideal for environments where comprehensive data acquisition is critical.

Equipped with a large LCD display, the Fluke 2625A provides clear and user-friendly access to real-time measurement data. Its graphical interface allows users to visualize trends and monitor readings easily, which significantly enhances usability. The device supports a variety of input types and can connect to thermocouples, RTDs, and other sensors, offering great flexibility for various measurement tasks.

The Fluke 2625A employs advanced measurement technologies that ensure accuracy in data logging. With a high sampling rate, it captures fast-changing signals while maintaining data integrity. The device features a built-in memory that allows for extensive logging, accommodating long-term monitoring tasks without requiring constant oversight. Users can set it to log data at specified intervals, offering customizable solutions for different monitoring needs.

Another significant characteristic of the Fluke 2625A is its robust communication capabilities. The device supports USB and RS-232 interfaces for easy connectivity with computers and other devices, making data transfer and analysis seamless. This feature is especially beneficial for users who need to compile or analyze large sets of data quickly.

Furthermore, the Fluke 2625A is designed with durability in mind. Its rugged construction makes it suitable for challenging environments, including those with high levels of vibration, dust, or moisture. This reliability ensures that the device can withstand the rigors of fieldwork while still delivering accurate measurements.

In summary, the Fluke 2625A is a powerful data logger that combines versatility, accuracy, and reliability. Its user-friendly interface, advanced measurement technologies, and robust design make it an essential tool for professionals in various industries, from manufacturing and HVAC to research and development. Whether monitoring temperature changes in a laboratory or assessing voltage levels in an industrial setting, the Fluke 2625A stands out as a trusted solution for effective data logging and analysis.
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