Variable Temperature Unit / Booster - ChemistryVariable Temperature Unit / Booster Technical manual BVTB3500 003. ... fan heater filter coil thyristor bridge heat sink BVT3X00 connector

Variable TemperatureUnit / Booster

Technical manualBVTB3500

BRUKER

Version
003

The information in this manual may be altered without notice.

BRUKER accepts no responsibility for actions taken as a resultof use of this manual. BRUKER accepts no liability for any mis-takes contained in the manual, leading to coincidental damage,whether during installation or operation of the instrument. Un-authorised reproduction of manual contents, without writtenpermission from the publishers, or translation into another lan-guage, either in full or in part, is forbidden.

This manual was written by

Patrick KRENCKER

© September 7, 1998: Bruker SA

Wissembourg, France

Manual P/N: Z31350DWG-Nr: 1059 / 003

Contents

Contents ............................................................... 3

Index ..................................................................... 5

1 Description ............................................................. 71.1 Introduction ......................................................................... 71.2 System requirements ........................................................... 71.3 BVT3500 main components ................................................. 81.4 Parts location ...................................................................... 91.5 Installation ......................................................................... 101.6 The front panel .................................................................. 111.7 Front panel connectors ...................................................... 12

BVT connector ...............................................................12Heater connector ...........................................................13

2 Technical specifications....................................... 152.1 Specifications .................................................................... 152.2 Security fuses ................................................................... 16

3 Schematics ........................................................... 17

Figures ................................................................ 23

Tables .................................................................. 25

BVTB3500 Version 003 BRUKER 3 (27)

Contents

4 (27) BRUKER BVTB3500 Version 003

Index

F

front panel connectors......................................................................................... 12fuses.................................................................................................................... 16


Index


1Description 1

Introduction 1.1

The BVTB3500 is a power booster unit for the digital temperature units BVT3000and BVT3300. It allows to increase the heating power up to 500 watts. This prod-uct is useful for high temperature experiment in NMR or ESR.

This unit is fully controlled by a driving unit temperature.The electronics providesthe power to the heater according a command signal issued by the BVT3X00. Itcan drive heater resistance from 6 to 12 ohms.

When the BVT3500 is activated the power stage of the driving unit is disabled.

System requirements 1.2

In order to use this product successfully, the following are recommended as aminimum:

1. a BVT3000 or a BVT3300 temperature unit is required.

2. a cable to link BVT3X00 and BVTB3500 (P/N W1101105).

3. a 500 Watt heater.


Description

0

Figure 1.1. BVTB3500 block diagram.

BVT3500 main components 1.3

A single printed circuit includes all electronics. A main toric transformer suppliesthe analog electronics and the thyristor bridge.

The heater is turned on when the relay is closed. When an overheat fault (over-heating of heater by missing gas flow or safety thermocouple break for example)occurs the relays turns off and heating is stopped.

power regulation

HEATER

U x I

TRANSFORMER

THYRISTOR BRIDGE

WITH PHASECONTROL

POWERCOMMANDINPUT

RELAYCOMMAND

INPUT

AC LINE

THERMO-COUPLEOUTPUT

SAFETY THERMOCOUPLE

TO BVT3X00

HEATERRELAY

SHUNTA

DC POW-ER SUP-PLY


Parts location

At rear, there is a power supply plug. The thyristor bridge, for heater power con-trol, is placed on the case at rear side with a heat sink. The voltage delivered tothe heater is filtered by a coil to reduce voltage ripple.

On the front plate, a led lights when the heater is on.

Parts location 1.4

Figure 1.2. Parts location

0

main transformer

heater filter coilfan

thyristor bridge

heat sink

BVT3X00 connector

mains plug

mains switch

heater connector

fuses


Description

Installation 1.5

The BVT3500 must be connected to a BVT3000 or BVT3300 with the cable (P/NW1101105). The heater must be removed from the driving temperature unit andplugged in the BVTB3500. The unit must be powered on.

The power booster unit may be installed in the cabinet of the spectrometer or ontop of the cabinet.

Do not cover the unit to preserve good ventilation of the enclosure.


The front panel

The front panel 1.6

On the BVTB3500 front panel, there is:

1. a main switch

2. a heater connector

3. a BVT3000/BVT3300 connector

4. a heater led indicator

Figure 1.3. BVTB3500 front panel

BVTB3500BRUKER

HEATER

HEATER

ON

BVT

POWER

1 2 3

4


Description

Front panel connectors 1.7

BVT connector 1.7.1

Figure 1.4. BVT connector (front view)

Table 1.1. BVTB 3500 connector pin assignment

PIN SIGNAL NAME DIRECTION COMMENT

A +5V I digital VCC input

C NC --- reserved

E gnd_BTO I isolated GND for BTO2000 (reserved)

G +15 v_BTO I isolated +15V for BTO2000 (reserved)

J NC --- reserved

L dgnd I digital ground

M sda I/O I2C bus data line

N scl I/O I2C bus clock line

O power control I 0 to 10 volt power control input

P pgnd I power ground

R pgnd I power ground

S thermocouple O safety thermocouple output

T b_relay I BVTB 3500 heater relay command input

U b_connected O LOW when BVTB 3500 is powered on

J

E

C

E

O

NMU

L

GPR

S

T


Front panel connectors

Heater connector 1.7.2

The heater is plugged in this connector. A safety thermocouple is located close tothe heater resistance in order to detect an overheating in case of a missing gasflow for example.

Figure 1.5. Heater connector (front view)

Table 1.2. Heater connector pin assignment

PIN 7 pins NMR 8 pins ESR

1 heater + heater +

2 heater + NC

3 security thermocouple + heater -

4 security thermocouple - security thermocouple +

5 heater - security thermocouple -

6 heater - GND

7 gnd heater +

8 / heater -

4 3

2

16

5 7

5 4

1

78

3 6

2

NMR ESR


Description


2Technicalspecifications 2

Specifications 2.1

Heater power:

• 500 W maximum

Heater resistance:

• 6 to 12 ohm.

Driving unit:

• BVT3000

• BVT3300

Weight :

• 13 Kg for basic version without any option.

Dimensions :

• 484 (W) x 88 (H) front plate

• 446 (W) x 86 (H) x 500 (D) stainless steel case

Voltage requirements :

• 220 V + / - 10%, 50/60 Hz 6.3 A fuses on mains.

Power consumption :

• 600 VA maximum at full power.

Input range:

• power command voltage 0 to 10 volt.

operating temperature:

• 0 to 50 °C.


Technical specifications

Security fuses 2.2

Some important electronic functions are fuse protected. To replace a blown fuse,ensure that power is removed before opening the case. Faulty fuse must alwaysbe replaced with the same type.

The fuses are located on the printed circuit.

Table 2.1. Fuses values

Figure 2.1. fuses location

Fuses Value Protection for

F1 0,5 AT +15 V

F2 0,5 AT - 15 V

F3 10 AT heater

F3

10AT

F2

0.5

AT

F1

0.5

AT

J3


3Schematics 3


Figure

3.1.B

VT

B3500

Booster

500W-

sheet1/3

SYNCHRO THYRISTORto sheet 2

TO RELAY

TP1

SYNC

+15P

+15V4

5

3

-15P

PGND

-15V

FOR ANALOG PARTS+/-15V

CURRENT FEEDBACK

TO HEATER REGULATIONsheet 2

TP2ISENSE

C13900u100V 1

2345

J4

CN SL5PA 12364.6

R2

39m5W

VSENSE

TC+

VOLTAGE FEEDBACK

THERMOCOUPLE

to sheet 3

HEATER CONNECTOR

TO FRAME

4x 100n

C25 C26 C27 C28

H1

ER REGULATION

S LIST

SMALL MODIFICATIONS ACCORDING TO TEST DATAFROM DPCREATING PCB W4P110377A

DRAWN:DATE:

APPROV:DATE:

DWG:

COMMENTS

VISA:

VISA:

SHEET:W4S11 0377

AKL27/02/95

PK27/02/95

A 1/3

18(27)

BR

UK

ER

BV

TB

3500V

ersion

003

1

2

ZD1TVS315

TP

TP

1 2

3

U1MC7815CT

C222u

C41000u

F1

0.5AT

AC INPUTS

17Vac

FROM POWER TRANSFORMER

17Vac

90Vac1234567

J3

CN SL7 1108.6

F2

0.5AT

4

2 3

1RB1

W06MC51000u

1 2

3

U2MC79L15

C322u

1

2

ZD2TVS315

TP

10mH/9A

1 2

J6

R6

100R

C6

100n250V

BRIDGE_OUT

BRIDGE_AC1

2 1D1

1N4007

13

24

F3

10AT

AC1

FROM THYRISTOR CONTROLLER

THPULS1

from sheet 3

from sheet 2

R5

4.75k

THPULS2

2

1

3T2BC550C

AC2

2 1D2

1N4007

R1100

R8

150R

+15V

1

6

3

4

2

5

TR1

IT233

123456

J5

BF37742-931

PGND

2

1D3MUR4100

C223900u100V

R7

100R

C7

100n250V

BRIDGE_AC2

1

8

2 7

3 6

4 5

RL1MZPA0014516

C8330n250V

2

1D41N4148

2

1

3T1BC550C

R31k

R4100R

HEATER_RLY

R9

1.21kR10

332R

1 2ZD3

10V

+15V

FRONT PANEL LAMPS

1234

J7

CN MKK04 D

LED HEATER ON

LED POWER ON

|LINKHEAT

SCHEMATIC PAGE

|S110378A.SCH|S110379A.SCH

FAN

A AKL 10/11/95

ON-BOARD LAMPS

12

J10

CN MKK02 D

R11

332R

1 2ZD4

10V

1 2

3

U8MC7812CT

C23100n

C2422u35V

+15V

+15V

to Transfo

1 2 3

J241761-03

from MAIN SUPPLY220Vac

1 2 3

J141761-03

1 2RI1

CTN SG40

MAINS1

MAINS3

MAINS2

R12

332R

12ZD5

10V

-15V

1

2LD1

1

2LD2

ART: W1101102

REV MODIFIED/DATE

BOOSTER 500W

+15V

-15V BVTB3500

EC:

NUMBER

Figure

3.2.B

VT

B3500

Booster

500W-

sheet2/3

FROM TRANSFORMERMAINS SYNCHRONIZATION

R262k

0uA

VSYVSTRC

0

VCON1

INHPULS3

PULS E2

Q114

Q2 15

Q1 4

Q22

QU 3

QZ 7

U4

TCA785

TO THYRISTOR BRIDGE

to sheet 1

TP10

TP12

THPULS1THPULS2

THYRISTOR CONTROLLER

C18150p

DRAWN:DATE:

APPROV:DATE:

DWG:

VISA:

VISA:

SHEET:W4S11 0378

AKL27/02/95

PK27/02/95

A 2/3

BV

TB

3500V

ersion

003B

RU

KE

R19

(27)

R25221k

from sheet 1

SYNC

GND

+15P

-15P

PGND

VCC

VEE

from sheet 3

10V = FULL POWER0V = POWER OFF

R1422.1k

POWER_SET 5 6RN1C

10k

POWER REGULATION

3

21

U6A

LM358N

1 2RN1A

10k

3 4RN1B

10k

12ZD6

11V

TP950Hz INI_in < 20

589

116

11

R23

82.5k

C10

47n

TP11

VCC

C191u

10V = off0V = max power

2 1D5

1N4148

R22

2.21k

R21

4.99k

5

67

U6B

LM358N

C9

2.2u63V

R24

1k

R13

22.1K

HEATER OUTPUT VOLTAGE

from sheet 1

R159.09k

VSENSE

V FEEDBACK

R18

10k

3

21

U5A

LM324N

R48

10k

R49

10k

R50

10k

R27

49.9kR28

301k

TP6

I21

V1 7

I3 4

I18

I45

V2 2

U3

RC4200

R32

249kPOWER FEEDBACK

R341.5M

R35

61.9k

VCCTP7

R3640.2k

R38

10k 1

32 P1

50k

C11100n

10

98

U5C

LM324N

VCC2-QUADRANTMULTIPLIER

R33

249k

R29

60.4kR30

301kR31

49.9k

TP8

VCC

R19

10k

5

67

U5B

LM324N

HEATER OUTPUT CURRENTfrom sheet 1

R161.3k

ISENSE

I FEEDBACK

IC BYPASS CAPACITORS

R17

36.5k

R20

1k

R39

0R

R37100R

VEE

C14100n

C15100n

C16100n

C17100n

AND SUPPLY CONNECTIONS

C12100n

C13100n

VCC

VEE

LM324:

VCC = pin 4VEE = pin 11

LM358:


TCA785:

VCC = pin 16GND = pin 1

RC4200:

GND = pin 6VEE = pin 3

ART: W1101102

BOOSTER 500W

BVTB3500

EC:

Figure

3.3.B

VT

B3500

Booster

500W-

sheet3/3

BTO SUPPLY

123

J9

CN MKK03 D

+15V

GND

D FOR SLAVE

D FOR -15V

OOSTER CONNECTOR

HEATER RELAY CONTROL

I2C BUS

D THERMOCOUPLE VOLTAGE OUTPUT

ONTROL INPUT (0 TO 10V)

S BOOSTER CONNECTED

to sheet 1

to sheet 2

VISA:

VISA:

SHEET: 3/3A

20(27)

BR

UK

ER

BV

TB

3500V

ersion

003

C21100n

+5V

EEPROM SUPPLY

GND

+15P

-15P

PGND

VCC

VEE

R47

4.75k

+5V

BBIS EEPROM

A01

A12

A23

SCL6

NC7

SDA5

U7

X24022

R4522.1k

+5V

R4622.1k

+5V

from sheet 1

TC+

1

2

ZD7TVS315

R4010M

R41

1k

VCC

12

1314

U5D

LM324N

R44

1k

TP13 RESERVEGND BTO+15V BTORESERVE

B

+5V CPU

GND CPU

123456789

101112131415

J8

CN MKK15 D

PGNDPGND

BOOSTER

SDASCL

BUFFERE

POWER C

INDICATE

2

1D6BAT85

R43

332k

R42

1k

C20

1u

2

3

1

T3BS170R51

15k

VCC

HEATER_RLY

POWER_SET

LM324:

IC SUPPLIES

X24022:


+5V = pin 8DGND = pin 4

ART: W1101102

BOOSTER 500W

BVTB3500

DRAWN:DATE:

APPROV:DATE:

DWG:

EC:

W4S11 0379

AKL27/02/95

PK27/02/95

Figure 3.4. BVTB3500 Booster 500W - location


Schematics


Figures

1 Description 7Figure 1.1. BVTB3500 block diagram. .....................................................8Figure 1.2. Parts location ........................................................................9Figure 1.3. BVTB3500 front panel .........................................................11Figure 1.4. BVT connector (front view) ..................................................12Figure 1.5. Heater connector (front view) ..............................................13

2 Technical specifications 15Figure 2.1. fuses location ......................................................................16

3 Schematics 17Figure 3.1. BVTB3500 Booster 500W - sheet 1/3 ...................................18Figure 3.2. BVTB3500 Booster 500W - sheet 2/3 ...................................19Figure 3.3. BVTB3500 Booster 500W - sheet 3/3 ...................................20Figure 3.4. BVTB3500 Booster 500W - location .....................................21


Figures


Tables

1 Description 7Table 1.1. BVTB 3500 connector pin assignment ............................ 12Table 1.2. Heater connector pin assignment ................................... 13

2 Technical specifications 15

3 Schematics 17


Tables



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Variable Temperature Unit / Booster - ChemistryVariable Temperature Unit / Booster Technical manual BVTB3500 003. ... fan heater filter coil thyristor bridge heat sink BVT3X00 connector