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Summary of Contents for BMT 964
- Page 1 Manual Rev. 04/2021 BMT MESSTECHNIK GMBH, Stahnsdorf, Germany. Tel. +49 - 3329 - 696 77 - 0, fax +49 - 3329 - 696 77 - 29 OSTI Ozone Systems & Technology International, Inc., USA Tel. +1 - 831 - 649 11 41, fax +1 - 831 - 649 11 51...
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Page 2: Table Of Contents
OZONE ANALYZER BMT 964 This manual describes the standard version BMT 964. For the versions BMT 964 BT, BMT 964 C, OFF-GAS System, BMT 964 AQ and BMT 964 RD, also refer to the according Appendices at the end of this manual ! - Page 3 Overrange EEPROMError Event- and Error-Log The Program BMT 964 Link Maintenance Troubleshooting Specifications Appendix A: Link-Mode Commands Appendix B: Bench Top Version BMT 964 BT General Description Operation Appendix C: Cabinet Version BMT 964C General description Ozone Destruct Operation Maintenance...
- Page 4 OZONE ANALYZER BMT 964 Manual, Rev. 04/2021 Electric Connections Appendix E: DI Water Version BMT 964 AQ General Description Electric connections Appendix F: Remote Display BMT 964 RD General Description Operation Appendix G: MODBUS RTU Communication Physical Connection Set Communication Parameters MODBUS Operation Function Code 1 –...
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Page 5: General Description
These parameters can be set with the three pushbuttons on the front panel as well as by connect- ing the serial interface to a Windows-PC running the program BMT 964 Link, which is supplied with each instrument. Another way of configuring the instrument is to use the so-called Link Mode via the serial interface. - Page 6 Précaution: Avertissement : L’ozone est un gaz à forte toxicité. Les concentrations d’ozone mesurées à l’aide de l’analyseur d’ozone BMT 964 vont au-delà de la limite mortelle. C’est pourquoi il convient d’utiliser une technique de sécurité adéquate (détecteur d’ozone). Attention : Le montage et le branchement au secteur devront être exécutés par une personne spécialement formée...
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Page 7: Installation And Power Connection
OZONE ANALYZER BMT 964 Manual, Rev. 04/2021 Installation and Power Connection The OZONE ANALYZER BMT 964 is a 144 x 72 mm front panel instrument (according to DIN 43700). The mounting cut-out should be 139 x 67 mm (W x H). Depth is approx. 230 mm. -
Page 8: Photometers And Dirt
BMT ozone analysers for gaseous ozone are equipped with particle filters containing a replacea- ble filter insert. The filter inserts should from time to time be checked for dirt (see page 29, Maintenance), and be replaced on a regular basis depending on the degree of particle content of the sample gas. -
Page 9: Output And Control Terminals
10 Zero GN D 11 Set to Zero (no O BMT MESSTECHN IK, BERLIN phone + + 49 30 - 801 85 95 fax + + 49 30 - 802 23 62 OSTI, MON TEREY, CA phone + + 1 - 831 - 6491141 fax + + 1 - 831 - 6491151 Binary Input The binary input is used to trigger the ZERO function of the OZONE ANALYZER BMT 964. -
Page 10: Binary Outputs
OZONE ANALYZER BMT 964 Manual, Rev. 04/2021 Input current at the binary input is approx. 18 mA. The input is protected against voltages with wrong polarity. Binary Outputs Function Description see page Lamp Low Opens when the lamp becomes too weak... -
Page 11: Switching On The Instrument
BMT MESSTECHN IK, BERLIN OSTI, MON TEREY BACK SCROLL / SET ZERO / EN TER OZON E AN AL Y ZER BMT 964 The pushbuttons can be used to perform the following operations: Switch to pressure display Zero the BMT 964 ... -
Page 12: Changing Parameters
SCROLL button for 2 s, properties can be changed freely. The Windows software BMT 964 Link can be used to change this PIN to any other 4-digit number. If the PIN is differ- ent from 0000, pressing the SCROLL key for 2 s will lead to the display of:... -
Page 13: Zeroing The Instrument From The Front Panel
Further information about zeroing the BMT 964 can be found on page 23. The Menu View Parameters In the menu View Parameters the configuration of the BMT 964 can be viewed, but it cannot be changed. SCROLL... -
Page 14: The Menu Set Parameters
OZONE ANALYZER BMT 964 Manual, Rev. 04/2021 The meaning of these parameters is explained in greater detail on the following pages. An addi- tional point in the menu View Parameters is Other Parameters: Menu Other Parameters SCROLL ENTER Other Param. - Page 15 2 seconds. The configuration of the BMT 964 can be changed here. The diagram shows the selectable pa- rameters. In order to change a setting, the ENTER button has to be pressed. Logical variables, as e.g.
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Page 16: Units
OZONE ANALYZER BMT 964 Manual, Rev. 04/2021 SCROLL Set Alarms Set High Alarm ENTER Enable/Disable ENTER SCROLL Set Hi-Threshold Hi:075.0 g/Nm ENTER Hi:075.0 g/Nm ENTER Hi:085.0 g/Nm Hi:095.0 g/Nm Hi:095.0 g/Nm ENTER Hi:096.0 g/Nm Hi:097.0 g/Nm Hi:098.0 g/Nm Hi:099.0 g/Nm Hi:090.0 g/Nm... -
Page 17: Pressure
OZONE ANALYZER BMT 964 Manual, Rev. 04/2021 g/Nm % wt/wt Range-ID 50.00 3.500 25000 100.0 7.000 50000 150.0 11.00 75000 200.0 14.00 100000 300.0 20.00 150000 400.0 26.00 200000 0.750 0.0600 375.0 15.00 1.100 7500 500.0 31.00 250000 600.0 37.00 300000 0.500... -
Page 18: Low-Alarm
OZONE ANALYZER BMT 964 Manual, Rev. 04/2021 Alarm-Event is entered into the Event-Log. The display alternates between the measurement result and the message High Alarm! If Alarm Beep is activated, there is also an acoustic signal, which may be stopped using the BACK key, if the front panel menu is on its basic level. -
Page 19: Input/Output
For test purposes both analog outputs can be set to their max. (10 V / 20 mA) re- spectively min. (0 V / 4 mA) values. With the program BMT 964 Link any voltage and current can be put out. -
Page 20: Date
Alarm Beep If this item is set to Enabled, the BMT 964 emits an acoustic signal during Low- or High-Alarms. This beeper may be stopped using the BACK button, if the front panel menu is on ist basic level. -
Page 21: The Serial Interface
If Timed/Polled is set to Timed, there is an output every Time Interval seconds (s. configura- tion of the RS-232 on p. 19). In case Polled is set, the BMT 964 expects the input of a question- mark ('?', without CR), to which it responds with a block of data. User mode data output always follows the format in the following example: 26.03.01,12:16:28,154.3 g/Nm3,1.008 bar,00.0,0000... -
Page 22: Link-Mode
Float: Range –9999999 .. 99999999 (floating point number as e.g. 1.234567, max. 8 charac- ters including the decimal point) It is very important to wait for confirmation from the BMT 964 once a command is sent. Link- Mode is started by sending the following command:... -
Page 23: Zeroing The Bmt 964
Automatic Zeroing with Control of Purge Gas Purge gas control can be taken over by the BMT 964. The relay contact Purge (Pin 2) is used for this purpose. This contact (max. 28V, 0.5A) can switch e.g. a BMT Purge Unit PUDC2, which consists of a solenoid valve and a small air pump with dust filter. - Page 24 In case the OZONE ANALYZER BMT 964 is equipped with an Internal Purge Unit (solenoid valve and air pump with particle filter) as an option, e.g. in the model BMT 964 BT (see Appen- dix B) the terminal 2 may not be connected externally because it is already connected to the in-...
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Page 25: Use Of The Limit-Alarms
BACK key may be used in case the menu on the front panel is on its basic level. 10 Error Handling and Early Warnings The BMT 964 has diverse possibilities to recognize errors, to signal them and to early-warn against them. Errors and early warnings are displayed on the front panel. Depending on the im-... -
Page 26: Lamp Low Error
OZONE ANALYZER BMT 964 Manual, Rev. 04/2021 Lamp Low Error Additionally the Error relay indicates Error. The message Error: Lamp Low is displayed between measurement results. Accuracy can be impaired in this state. Lamp Off Error The UV-lamp does not work any more. The message Error: Lamp Off is shown constantly. -
Page 27: Overpressure
MESSTECHNIK (s. also Chapter Troubleshooting). The Error Relay indicates an error. 11 Event- and Error-Log These two logs are stored by the BMT 964 and document important events and errors. The last 48 events and the last 16 errors are stored, which means that the oldest entries are overwritten when new entries are stored. -
Page 28: 12 The Program Bmt 964 Link
(Link Baud rate etc.) is set automatically. Among other features, the software allows: simple configuration of all parameters of the BMT 964. With a few mouse clicks you can view respectively change e.g. the units of ozone concentration and pressure, alarm parame-... -
Page 29: 13 Maintenance
The Save and Load functions in the main menu under File are used to save configurations of the BMT 964 onto your PC and load it again at a later time. This helps configuring all analyzers the same in different installations of one project. - Page 30 OZONE ANALYZER BMT 964 Manual, Rev. 04/2021 In case of excessive dirt (e.g. Dirty Warning or Dirty Alarm as described on page 26), the cuvette should be cleaned. We recommend to send in the analyzer to the manufacturer or representatives (see chapter Troubleshooting).
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Page 31: 14 Troubleshooting
The logging capabilities of the software can also be used to detect randomly occuring errors. In case the BMT 964 has to be sent in for service or repair, you do not need an RMA, but please provide the following details:... -
Page 32: 15 Specifications
(e.g. BMT Purge Unit) software BMT 964 Link, instrument configuration and readout of Event- and Error Logs on a Windows PC power wide range input: 100 - 240 VAC, 50/60 Hz, 15 VA... -
Page 33: Appendix A: Link-Mode Commands
The following table describes all available Link-Mode commands. Commands with question- marks retrieve information from the BMT 964. Caution: This set of commands should only be used by programmers who have a good under- standing of the BMT 964 and ozone measurement in general! Meaning PC->964 964->PC... - Page 34 OZONE ANALYZER BMT 964 Manual, Rev. 04/2021 Meaning PC->964 964->PC Pressure? *10# *10#float,byte = float * Multiplier float: Pressure always in bar byte Multiplier: 0: 1.0 (Unit bar) 1: 14.50778 (Unit psi) 2: 750.0617 (Unit Torr) 3: 0.1 (Unit MPa)
- Page 35 OZONE ANALYZER BMT 964 Manual, Rev. 04/2021 Meaning PC->964 964->PC Set Hour *30#byte *30# Set Minute *31#byte *31# Set Second *32#byte *32# Date Format? *33# *33#byte 0: DD.MM.YY 1: MM/DD/YY Set Date Format *34#byte *34# 0: DD.MM.YY 1: MM/DD/YY Date?
- Page 36 OZONE ANALYZER BMT 964 Manual, Rev. 04/2021 Meaning PC->964 964->PC Send Event Log (max. 48 Entries) *50# *50#byte1, byte2,byte3, Format: YY,MM, DD,HH,MM,SS, byte 7 /additional float: byte4,byte5, byte6,byte7, float # 7-Bits Meaning float Parameter byte1,... Switched on pressure [bar] switched off...
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Page 37: Appendix B: Bench Top Version Bmt 964 Bt
Cartridge where the ozone is destroyed. Operation The operation of the BMT 964 BT is the same as of the standard BMT 964. Care must be taken using the Catalyzing Cartridge, which may never see water or humidity. This might damage the catalyzing material. - Page 38 The BMT 964 BT may be ordered together with a soft carrying bag for protecting the instrument during transport. The bag has room enough for accessories like filter inserts for the sample gas...
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Page 39: Appendix C: Cabinet Version Bmt 964C
OZONE ANALYZER BMT 964 Manual, Rev. 04/2021 Appendix C: Cabinet Version BMT 964C General description The OZONE ANALYZER BMT 964C (cabinet version) is housed in a splash-proof IP 65 (NEMA 4X) aluminum cabinet, and is equipped with everything necessary for fully automatic stand-alone operation. -
Page 40: Ozone Destruct
OZONE ANALYZER BMT 964 Manual, Rev. 04/2021 Warning: Do not apply more than 2.5 barg gas pressure to the instrument! The Cabinet is also available with 1/8" or 1/4" compression fittings at the sample gas inlet. The catalyzing cartridge CAT-35 provides a G 1/8 thread (BSPP 1/8") at the outlet. The power and signal connectors are waterproof. -
Page 41: Operation
For replacement order "REFILL". Operation The operation of the BMT 964 C is the same as of the standard BMT 964, see chapters 1 to 14! Adjustment of Sample Flow: The sample gas flow rate can be set with the red knob (door open, upper right corner). -
Page 42: Dimensions
Note: The signal connector pinout of the BMT 964 C is different to the pinout of the standard instrument BMT 964! Also, the purge contact (Pin 9) is not connected, as it is used internally. -
Page 43: Appendix D: Ozone-In-Off-Gas System
N - O F F - G A N A L Y S The BMT OZONE-IN-OFF-GAS System is an ozone analysing system for moist off-gases, housed in a splash-proof IP 65 (NEMA 4X) aluminum cabinet. It consists of the Off-Gas Cabi- net BMT 964OG, and the separate Peltier-electric cooler/dryer DH5. -
Page 44: Off-Gas Cabinet Bmt 964Og
SGP 5, and the DH5 power supply, in a wall mounted aluminum cabinet, 300 x 400 x 120 cm (W x H x D, twice the height of the standard BMT 964C cabinet). The cool- er/dryer DH5 is mounted upright on top of the reaction vessel, or in a large diameter off-gas tube. -
Page 45: Sample Gas Cooler/Dryer Dh5
The DH5 electric cooler/dryer and the analyser cabinet BMT 964OG are connected with an elec- tric cable, and with two PTFE tubings 3 x 5 mm leading the sample gas from the reactor to the analyser for ozone measurement, and leading it back to the reactor after measurement (no critical ozone destruct necessary). -
Page 46: Operation
Operation The operation of the Off-Gas Cabinet is the same as of the standard BMT 964, see chapters 1 to 14! Adjustment of Sample Flow: The sample gas flow is produced by the sample gas pump SGP 5, and is set in the factory. -
Page 47: Electric Connections
OZONE ANALYZER BMT 964 Manual, Rev. 04/2021 Electric Connections Signal connector: current signal, output 4 - 20 mA high current signal, output 4 - 20 mA voltage signal, output 0 - 10 V high voltage signal, output 0 - 10 V... -
Page 48: Appendix E: Di Water Version Bmt 964 Aq
The BMT 964 AQ is a SENSOR because it does not have a display. It is designed to directly be connnected to e.g. a workstation via a 4-20 mA, or 0-10 V, signal line. The workstation also has to monitor and control the instrument's functions like auto-zeroing, or possible failure indica- tions. - Page 49 ZERO at the optional REMOTE DISPLAY BMT 964 RD, or via the binary input at pins 5 and 6 of the signal connector, or RS-232 (for de- tails see the main part of the manual).
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Page 50: Electric Connections
Remote Display: 12-pole connector, only to be connected to BMT Remote Display Note: The 24V DC version of the BMT 964 AQ is based on the same type of power connector, but with the female connector on the SENSOR side. -
Page 51: Appendix F: Remote Display Bmt 964 Rd
Note: The BMT 963 RD is not compatible to the BMT 964 series of analyzers! Operation The Sensor with REMOTE DISPLAY is operated the same way as the standard BMT 964 in- strument (see main part of the manual), if it is connected. Connecting the Remote Display during... -
Page 52: Appendix G: Modbus Rtu Communication
Signal A (-) Signal B (+) It is important to connect pin 1 to pin 2, because this bridge will signal to the BMT 964, that a MODBUS cable is connected (MODBUS auto detect). MODBUS communication parameters will be automatically loaded, and communication can commence, as soon as this bridge is detect-... -
Page 53: Set Communication Parameters
3. Set Communication Parameters Communication parameters can be set with the program BMT 964 Link, or, if the bridge be- tween pins 1 and 2 of the MODBUS connector is detected, also on the front panel menu (Set I/O ->... -
Page 54: Function Code 1 - Read Single Coil
(where address space starts with 0). Caution: Care has to be taken that the MODBUS master does not reconfigure the BMT 964 in an endless loop. The internal non-volatile memory will only tolerate a limited (1,000,000) number of write cycles. -
Page 55: Function Code 3 - Read Holding Registers
OZONE ANALYZER BMT 964 Manual, Rev. 04/2021 Function Code 3 – Read Holding Registers This code is used to request numeric information. The query specifies a start register and the number of registers to be transmitted. Register size is 16 bits. Floating point and long values re- quire two words to be transmitted. -
Page 56: Function Code 8 - Diagnostics
CRC Error Counter Exception Counter Return Query Data is a simple loop-back test. The BMT 964 will echo the message sent to it. Please note, that the data field of this query should be two bytes long. Both CRC Error Counter and Exception Counter will start at 0 when the instrument is switched on.
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