Bruker BVT3300 Technical Manual
  1. Manuals
  2. Brands
  3. Bruker Manuals
  4. Laboratory Equipment
  5. BVT3300
  6. Technical manual
Bruker BVT3300 Technical Manual

Bruker BVT3300 Technical Manual

Variable temperature unit
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
Variable Temperature
Unit
Technical Manual
BVT3300
003
Version
BRUKER

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the BVT3300 and is the answer not in the manual?

Questions and answers

Related Manuals for Bruker BVT3300

Summary of Contents for Bruker BVT3300

  • Page 1 Variable Temperature Unit Technical Manual BVT3300 Version BRUKER...
  • Page 2 The information in this manual may be altered without notice. BRUKER accepts no responsibility for actions taken as a result of 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.

  • Page 3: Table Of Contents

    Contents Contents ............... 3 Index ..............5 Description ............. 7 Introduction ................. 7 BVT3300 main components ..........8 Parts location ..............9 Principle of operation ............9 The front panel ..............10 Gas flow circuit ..............11 Setting up the gas flow ..........12 Front panel connectors ............
  • Page 4 SV (Software version) ............ 47 WB (Write BBIS) ............48 WR (Write record) ............49 XR (Extract a record) ............. 50 Technical specifications........51 Specifications ..............51 Security fuses ..............52 Schematics ............53 Figures ..............63 Tables ..............65 4 (67) BRUKER BVT3300 Version 003...

  • Page 5: Index

    ................27 evaporator ......................17 exchanger ......................17 front panel connectors..................13 fuses........................52 Gas flow indicator....................10 Heater connector....................13 LN2 evaporator ....................20 Low temperature ....................20 N2 connector....................... 17 BVT3300 Version 003 BRUKER 5 (67)
  • Page 6 Pt100 connector ....................14 remote interface control ..................27 RS232 connector ....................16 Sensor selection....................25 Temperature controller ..................7 Thermocouple connector ..................15 thermocouple T ..................... 9 6 (67) BRUKER BVT3300 Version 003...

  • Page 7: Description

    Description Introduction The new variable temperature unit BVT3300 for sample temperature regulation is equipped with a microcontroller interface for remote control by the host computer. The BVT3300 is manufactured in a separate housing. The unit includes: - A main board called interface board with a microcontroller.

  • Page 8: Bvt3300 Main Components

    BVT3300 main components The interface board has a microcontroller for remote control of the BVT3300. Two RS232 links are available on this printed circuit. One link, on the front panel side, is for the communication with host computer and the other for communication with the Eurotherm 847 temperature controller.

  • Page 9: Parts Location

    The sample tube placed in the magnet of the spectrometer is heated by a con- stant gas flow delivered by the BVT3300. A temperature sensor (e.g. a thermo- couple T) located under the sample tube measures the gas temperature. The temperature controller compares the probe temperature to the target temperature programmed by the operator.

  • Page 10: The Front Panel

    RS232 connector Heater connector BCU05 connector N2 connector Gas flow indicator BTO2000 power supply or BVTB 3500 Thermocouple connector type T Eurotherm controller Figure 1.3. BVT3300 front panel POWER AUXILIARY SENSORS GAS OUT GAS IN GAS FLOW PT100 SENSOR E U R O T H E R M BTO P.S.

  • Page 11: Gas Flow Circuit

    On the front panel a gas flow meter with a steel ball indicates the actual gas flow. An optical barrier at the bottom detects a missing gas flow. Figure 1.4. Gas flow circuit PRESSURE REGULATOR GAS FLOW REDUCER FLOW SENSOR GAS IN GAS OUT VALVE CONTROL VALVE BLOCK VALVE BVT3300 Version 003 BRUKER 11 (67)

  • Page 12: Setting Up The Gas Flow

    Connect the BVT3300 gas input to a dry air or N2 gas line. The input pressure should be at least 4 bar and must not exceed 8 bar. Power on the BVT3300. The default value of the flow rate is set according to the position of jumper JP6 to JP8.

  • Page 13: Front Panel Connectors

    Figure 1.5. Heater connector (Front view) Table 1.2. Heater connector pin assignment SIGNAL heater + heater + security thermocouple + security thermocouple - heater - heater - BVT3300 Version 003 BRUKER 13 (67)

  • Page 14: Pt100 Connector

    Figure 1.6. Pt100 connector (front view) Table 1.3. Pt100 connector pin assignment SIGNAL current + measure measure current - Note. This connector is also used to connect the BTO2000. Pin 2 and 3 are used as signal input pins. 14 (67) BRUKER BVT3300 Version 003...

  • Page 15: Thermocouple Connector

    Front panel connectors Thermocouple connector 1.7.3 Figure 1.7. Thermocouple connector (Front view) CONST - Table 1.4. Thermocouple T pin assignment SIGNAL (Cu) Shield (Cu) Thermocouple + (Co) Thermocouple - BVT3300 Version 003 BRUKER 15 (67)

  • Page 16: Rs232 Connector

    Description RS232 connector 1.7.4 Figure 1.8. RS232 male connector (Front view) Table 1.5. Rs232 connector pin assignment SIGNAL 16 (67) BRUKER BVT3300 Version 003...

  • Page 17: N2 Connector (Option)

    BCU05 connector 1.7.6 Figure 1.10. BCU05 connector Table 1.7. BCU05 connector pin assignment PIN NUMBER SIGNAL NAME COMMENT heater on (output) turns on the BCU05 when high (> 2,4v) dgnd digital ground not connected BVT3300 Version 003 BRUKER 17 (67)

  • Page 18: Bvtb 3500 Connector

    0 to 10 volt power control output pgnd power ground pgnd power ground thermocouple safety thermocouple input b_relay BVTB 3500 heater relay command b_connected if grounded BVTB 3500 is detected The BVTB3500 is a power booster for the BVT3300. 18 (67) BRUKER BVT3300 Version 003...

  • Page 19: Options

    Figure 2.1. BASM front view module with 4 Pt100 inputs module with 4 thermocouple inputs The module is inserted in the front of the BVT3300 unit and has a flat cable which must be connected to the interface board. BVT3300 Version 003...

  • Page 20: Manual Command Module - Bmcm

    Gas flow control : a knob permits to select manually stepwise a gas flow beetween 0 and 2000 l/h. The module is inserted in the front of the BVT3300 unit and has 4 flat cables which must be connected to the interface board.

  • Page 21: Ln2 Exchanger

    Regulation accuracy is unchanged. Exchanger presentation 2.4.1 Figure 2.3. Exchanger principle BVT3x00 Transfer line N2 gas in Cold N2 out Valve block Isothermal tank Liquid nitrogen Refill level sensor Tube Empty level sensor BVT3300 Version 003 BRUKER 21 (67)

  • Page 22: Ln2 Evaporator

    200 Watts ( 38V on a 7 ohm heater ). The cold gas is transferred to the probe trough a flexible transfer line. For this option, a printed circuit is installed inside the BVT3300. This electronics controls the power applied to the LN2 heater and monitors the LN2 level in the tank.

  • Page 23: Bcu05 Gas Cooler

    - 40 °C. The BCU05 has a cable that must be connected to the BVT3300 on the connector marked BCU05. When the heater is ON a signal is delivered to turn on the com- pressor of the BCU05.
  • Page 24 Options 24 (67) BRUKER BVT3300 Version 003...

  • Page 25: Configuration

    Configuration Sensor selection The BVT3300 can be used with three types of sensors: • Thermocouple T (factory set) • BTO2000 • PT100 sensor Warning: Never connect two types of sensors at a same time on the BVT3300. Eurotherm 847 configuration The EUROTHERM 847 controller must be configured to work with the right type of sensor.

  • Page 26: Table 3.1. Eurotherm 847 Sensor Selection

    Pt100 X (don’t care) - When the configuration is finished, switch off the main power, remove again the controller and open the switch. - finely close the controller and switch on the power supply. 26 (67) BRUKER BVT3300 Version 003...

  • Page 27: Remote Interface Control

    4000000 Microcontroller interface This interface has several functions: • Host computer - EUROTHERM transparent communication trough a serial port • Transmission of BVT3300 internal status to host computer. • Probe heater on/off control • Gas flow control. • Installed option control: 1.

  • Page 28: Commands And Communication Protocol

    Six non printing ASCII characters are used to control the messages that are ex- changed between host computer and BVT3000. Table 4.1. Control characters. NAME FUNCTION Start of text End of text End of transmission Enquiry Acknowledge NACK Negative acknowledge 28 (67) BRUKER BVT3300 Version 003...

  • Page 29: List Of Commands

    4 (for test only) reads interface version (software, hardware and installed options) reads BBIS memory content writes to a BBIS memory location writes a record to the BVT3000 transmit a hexadecimal record to the host BVT3300 Version 003 BRUKER 29 (67)

  • Page 30: Rs232 Link Characteristics

    The answer to an unauthorised function will be a «NACK». The following table gives the different possible options and their authorised functions. In this table, «X» means authorised and a empty cell means unauthorised. 30 (67) BRUKER BVT3300 Version 003...

  • Page 31: Table 4.3. Authorised Commands

    Authorised functions Table 4.3. Authorised commands WITH WITH COMMANDS STANDARD PROBLEM EVAPORATOR EXCHANGER BVT3300 Version 003 BRUKER 31 (67)

  • Page 32: Af (Air Flow)

    STX AF > Value ETX BCC Description: This command allows to read the actual gas delivery. Rules: Value is a 4 characters string. Table 2.1." Flow rate versus com- mand" on page 12 shows the different gas flow deliveries. 32 (67) BRUKER BVT3300 Version 003...

  • Page 33: Cm (Check Memory For Test Only)

    ACK if the RAM test has complete. NACK if the test failed. Description: The CM command starts a complete microcontroller ram test. WARNING: After the (ACK or NACK) answer the interface is always RESET. BVT3300 Version 003 BRUKER 33 (67)

  • Page 34: Co (Communications Speed)

    A B C D E 1 9 2 0 0 _ 9 6 0 0 _ 4 8 0 0 _ 2 4 0 0 _ 1 2 0 0 NB: _ represent the space character. 34 (67) BRUKER BVT3300 Version 003...

  • Page 35: Dl (Download)

    Description: Allows the user to get information about down-load. Rules: Val = '0': No down-load in progress. Val = '1': Down-load in progress but flash eprom is not erased. Val = '2': Down-load in progress and flash eprom erased. BVT3300 Version 003 BRUKER 35 (67)

  • Page 36: Dt (Dac Check For Test Only)

    EOT 0 0 0 0 DT state ETX BCC Response: Description: DT starts a LN2 DAC test. Rules: state can be «0» or «1». 1 means test on. 0 means test off. 0 COMMANDS 36 (67) BRUKER BVT3300 Version 003...

  • Page 37: Error Status)

    BBIS available bbiscs1 BBIS checksum error block 1 bbiscs2 BBIS checksum error block 2 bbiscs3 BBIS checksum error block 3 bbiscs4 BBIS checksum error block 4 BVT3300 Version 003 BRUKER 37 (67)

  • Page 38: Hp (Heater Power)

    Description: This command allows to read the heater's state. Rules: State can be '0' or '1'. «1» means that heater is ON «0» means that heater is OFF NB: after power on the heater is OFF. 38 (67) BRUKER BVT3300 Version 003...

  • Page 39: Is (Interface Status)

    1 = LN2 tank is empty. evaporator status 1 = LN2 heater is on not used 1 always booster connected 1 = BVTB3500 present reserved 0 always reserved 0 always reserved 0 always reserved 0 always reserved 0 always BVT3300 Version 003 BRUKER 39 (67)

  • Page 40: Nh (Nitrogen Heater)

    Description: This command allows to read back LN2 heater power. Rules: Value from 0 to 100%, is a string up to 5 characters long. The string can begin with 1 to 5 spaces or «0». NB: Value is a DECIMAL code. 40 (67) BRUKER BVT3300 Version 003...

  • Page 41: Np (Nitrogen Heater Power)

    State can be «0» or «1». State at «1» means that LN2 heater is ON. State at «0» means that LN2 heater is OFF. NB: After power on the nitrogen heater power is at «0». BVT3300 Version 003 BRUKER 41 (67)

  • Page 42: P1 (Port 1 For Test Only)

    A and B are always «0». The third character represents the state of port 1 bits 4 to 7. The fourth character represents the state of the bits 0 to 3. All the characters are hexadecimal. 42 (67) BRUKER BVT3300 Version 003...

  • Page 43: P2 (Port 2 For Test Only)

    A and B are always «0». The third character represents the state of port 2 bits 4 to 7. The fourth character represents the state of the bits 0 to 3. All the characters are hexadecimal. BVT3300 Version 003 BRUKER 43 (67)

  • Page 44: P3 (Port 3 For Test Only)

    A and B are always «0». The third character represents the state of port 3 bits 4 to 7. The fourth character represents the state of the bits 0 to 3. All the characters are hexadecimal. 44 (67) BRUKER BVT3300 Version 003...

  • Page 45: P4 (Port 4 For Test Only)

    A and B are always «0». The third character represents the state of port 3 bits 4 to 7. The fourth character represents the state of the bits 0 to 3. All the characters are hexadecimal. BVT3300 Version 003 BRUKER 45 (67)

  • Page 46: Rb (Read Bbis)

    - 1: BVT3X00 motherboard address - 2: BVTB3500 (Booster) address - 3: Address unused - 4: Address unused - 5: Address unused - 6: Address unused - 7: Address unused All other values generates a NACK response 46 (67) BRUKER BVT3300 Version 003...

  • Page 47: Software Version)

    The different options identifications are defined as follows: '1' Thermocouple module option. ’2’: Ln2 Evaporator option. ’3’: Ln2 Evaporator option+ thermocouple module. ’4’: LN2 Exchanger option. '5': Ln2 Exchanger option+ thermocouple module. '6': Problem detected. BVT3300 Version 003 BRUKER 47 (67)

  • Page 48: Wb (Write Bbis)

    - 1: BVT3X00 motherboard address - 2: BOOSTER address - 3: Address unused - 4: Address unused - 5: Address unused - 6: Address unused - 7: Address unused All other values generates a NACK response 48 (67) BRUKER BVT3300 Version 003...

  • Page 49: Wr (Write Record)

    NACK in all other cases Description: Allows to transfer records extract from a «.hex» file to the BVT3X00. Rules: Rec value represents an intel-hex record. The first character «:» (3A), Cr and Lf are not transmitted. BVT3300 Version 003 BRUKER 49 (67)

  • Page 50: Xr (Extract A Record)

    If BVT3X00 receives an «XR3» command, the previous record is send again. An «XR0» Command must be sent to terminate the up-load sequence and return to normal mode. 50 (67) BRUKER BVT3300 Version 003...

  • Page 51: Technical Specifications

    4 bars mini, 8 bars maxi (dry air or N gas). Gas flow rate : • 200 l/h to 2000 l/h with 15 steps Options For regulation at low temperature following devices can be used: BVT3300 Version 003 BRUKER 51 (67)

  • Page 52: Security Fuses

    Fuses values Fuses Value Protection for 1 AT +5 V digital 6,3 AT Heater resistor 0,5 AT +15 V analog 0,5 AT -15V analog 0,5 AT +24V valve block 0,5 AT + 15 V BTO2000 52 (67) BRUKER BVT3300 Version 003...

  • Page 53: Schematics

    Schematics BVT3300 Version 003 BRUKER 53 (67)
  • Page 54 from MAIN SUPPLY to Eurotherm to sheet 2 220Vac SYNCHRO THYRISTOR SYNC to LN2 option to Transfo TP22 7815CT +15P TP28 41761-03 41761-03 41761-03 41761-03 1000uF 10uF TVS315 0.5AT +/-15V FOR ANALOG PARTS PGND 1 2 3 1 2 3 1 2 3 1 2 3 MAINS1...
  • Page 55 +15P BOOSTER CONNECTOR PGND +15P -15P from sheet 1 CPUVCC +5V CPU U54D RESERVED FOR SLAVE from sheet 6 GND_BTO GND BTO 22.1k +15_BTO +15V BTO HEATER THERMOCOUPLE RESERVED FOR -15V from sheet 1 CPUGND GND CPU LM324 U47B I2C BUS POWER CONTROL OUTPUT (0 TO 10V) 100R PGND...
  • Page 56 U38A +15P LN2_EMPTY- LN2_EMPTY U37C PGND U37A U37B 0 = Valve open 4001 EXCH_CONN- EXCHANGER VALVE -15P HEATER_RLY VALVE_EXCH- from sheet 6 to sheet 7 4025 4025 4025 301K TP21 MUX_TC +15P U54B from sheet 2 301K JP11 OVERHEAT U54A +15P to sheet 7 4.99k...
  • Page 57 FROM UART DATA BUS D[0..7] D[0..7] INTR- D[0..7] sheet 5 to sheet 5,6,7 CHARGE PUMP 18pF BOOT 4.7k EA/VP P0.0 11.059M P0.1 220n P0.2 P0.3 FLASH_VPON- P0.4 P0.5 SHDN PGMODE 220n P0.6 18pF P0.7 FLASH RESET P2.0 P2.1 INTR- CS_FLASH- P3.2/INT0 P2.2 VOUT...
  • Page 58 from sheet 1 CPUVCC RS232 I/O CPUGND OPTION 1: DGND - BOTH PORTS USED - DC/DC CONVERTER NOT MOUNTED - VCC/GND AND +5V/GNDX SHORTED TOGETHER ISOLATED +5V - NO ISOLATION TO RS232 DRIVER OPTION 2: - ONLY HOST PORT IN USE - UART NOT MOUNTED - VCC/GND AND +5V/GNDX ISOLATED 4K75...
  • Page 59 EVAP_CTRL- to sheet 3 HEATER & LN2 POWER ENABLE POWER_EN- HEATER_CTRL- from sheet 3 to sheet 2,4 +24V +15P BBIS EEPROM 4.75k SWITCH BOOSTER_CONN- I2C CONNECTOR FRONT-PANEL LED + from sheet 2 HEATER SWITCH LED - 4.75k CN MKK02 D 1.5K RS8A/10K 22.1k...
  • Page 60 from sheet 1 CPU SIDE PLP1 EVAPORATOR HEATER STATUS +15P PLP0 I_EVAP_STAT +15P CPUVCC PLP3 TO PORT 4 PLP2 I_VALVE PGND CPUGND PLP5 DGND PLP4 BCU05 CONNECTOR -15P PLP7 PLP6 +24V +24V RS8A/2K7 +15P VREF 100R 74LS32 2K74 U32A CN MKK03 D U41A +15P LM358...
  • Page 62 Schematics 62 (67) BRUKER BVT3300 Version 003...

  • Page 63: Figures

    1 Description Figure 1.1. BVT3300 block diagram ............8 Figure 1.2. Parts location ................9 Figure 1.3. BVT3300 front panel ............10 Figure 1.4. Gas flow circuit ..............11 Figure 1.5. Heater connector (Front view) ..........13 Figure 1.6. Pt100 connector (front view) ..........14 Figure 1.7.
  • Page 64 64 (67) BRUKER BVT3300 Version 003...

  • Page 65: Tables

    Port 1 definition ............. 42 Table 4.7. Port2 definition .............. 43 Table 4.8. Port3 definition .............. 44 Table 4.9. Port 4 definition ............. 45 Table 4.10. Record format ..............49 5 Technical specifications 6 Schematics BVT3300 Version 003 BRUKER 65 (67)
  • Page 66 66 (67) BRUKER BVT3300 Version 003...
  • Page 67 Lastpage BVT3300 Version 003 BRUKER 67 (67)

Table of Contents