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Model 306 Ozone Calibration Source Manual Rev. G-1

8

Figure 3-2.

Photograph of the Model 306 showing where a needle valve can be installed to

increase the flow or pressure at the outlet.

Ozone Generator

Place to install a needle
valve for increasing the
outlet flow or pressure

Outlet

Internal
Overflow
Scrubber

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Содержание 306

Страница 1: ...ce Manual Rev G 1 i Ozone Calibration Source 2B Technologies OPERATION MANUAL Model 306 Copyright 2020 2B Technologies All rights reserved Technical Support https twobtech com tech support html techsupport twobtech com 1 303 273 0559 ...

Страница 2: ...9 4 2 Configuration Menu Cfg 10 4 2 1 Calibration Submenu 10 4 2 2 Program Submenu 11 4 2 3 Scheduler Submenu 12 4 2 4 Date Time Submenu 12 4 3 Ozone Menu O3 12 4 4 Start Step Menu Stp 13 4 5 Zero Menu Zer 13 5 USING THE SERIAL INTERFACE 14 5 1 Collecting Diagnostic Data over the Serial Port in Real Time via the LCD 14 5 2 Operating the Instrument Remotely via the Serial Menu 15 5 3 Hibernate Feat...

Страница 3: ...Model 306 Ozone Calibration Source Manual Rev G 1 iii 9 MAINTENANCE TROUBLESHOOTING 21 10 LABELED INSTRUMENT PHOTOS 23 11 PARTS LIST 27 12 SERVICE LOG 28 ...

Страница 4: ...Model 306 Ozone Calibration Source Manual Rev G 1 iv IDENTIFICATION RECORDS Record the following information for future reference Unit serial number Warranty start date date of receipt ...

Страница 5: ...battery requirements specified in Section 3 2 and midnight hour setting in Section 4 2 3 Revision F 1 serial no 445 447 and above December 2019 New pictures Figures 10 2 and 10 3 to reflect change to a different flowmeter New Section 3 3 giving installation guidelines Addition of links to 2B Tech s published paper on the Model 306 Section 1 Updated html links Other minor updates and edits Revision...

Страница 6: ...please click on the Ticket link provided to continue to communicate with us directly over the internet The web ticket approach to customer service allows us to better track your problem and be certain that you get a timely response We at 2B Tech pride ourselves on the excellent customer service we provide You may also contact us by email at techsupport twobtech com or by phone at 1 303 273 0559 In...

Страница 7: ... materials Warranty is valid only for the country designated on the 2B Technologies quote or invoice SAFETY WARNINGS The Model 306 Ozone Calibration Source is designed specifically to produce ozone Ozone is a toxic gas and should be handled with caution The same kind of care should be taken in handling the output of the Ozone Cal Source as for any other toxic gas that for example may come from a c...

Страница 8: ...WEIS Vor dem Öffnen des Gerätes Netzstecker ziehen WARNHINWEIS Dieses auf dem Gerät weist darauf hin dab der Anwender zuerst das entsprechende Kapitel in der Bedienungsanleitung lesen sollte WARNHINWEIS Wenn das Gerät nicht wie durch die Firma 2B Technologies USA vorgeschrieben und im Handbuch beschrieben betrieben wird können die im Gerät eingebauten Schutzvorrichtungen beeinträchtigt werden ITAL...

Страница 9: ...CS allows the user to switch their ozone monitor easily from air sampling mode to calibration mode The Ozone Cal Source output may be connected directly to the inlet of any ozone monitor provided that the ozone monitor s sampling rate is less than 4 0 L min the excess flow is vented through an ozone scrubber internal to the OCS Besides portability an important advantage of the Model 306 OCS is tha...

Страница 10: ... determined by pressure and temperature and the residence time in the photolysis cell determined by volumetric flow rate and cell volume By holding these parameters constant it is possible to produce a flow of air containing a constant concentration of ozone and the concentration of ozone produced can be varied most conveniently by varying the lamp intensity Figure 1 1 is a schematic diagram of th...

Страница 11: ...stream is measured but not controlled Instead the lamp intensity is varied to compensate for changes in pressure using a proprietary algorithm Air containing ozone exits the photolysis cell through an overflow tee where excess air not sampled by the ozone monitor being calibrated is exhausted through an internal ozone scrubber If it is desired to have the full 4 0 L min of air ozone exit the instr...

Страница 12: ...3 5 6 3 11 6 inches 9 21 29 cm Weight 5 6 lb 2 6 kg Power Requirements 12 V DC or 120 240 V AC 18 watt Analog Output Yes voltage output tracks ozone output and provides system error codes Serial Connection Yes for remote operation and for system diagnostics Programmable Output Yes user specified ozone output for up to 10 steps from 0 to 1 000 ppbv stored in internal memory Scheduler Yes once daily...

Страница 13: ...power adapter 2 5 amp or higher 2 a cigarette lighter adapter plugged into a 12 V DC source such as found in an automobile or many light aircraft or 3 a 12 V battery The source must be very close to 12 V because of the power requirements of the instrument s pump When using a battery be certain to attach the positive red and negative black wires correctly A circuit breaker and diode are installed o...

Страница 14: ...Alternatively a 3 way valve inside the Model 306 OCSTM can be set so that air from a sampling inlet on the back of the instrument bypasses the Model 306 and is routed to the user s ozone monitor or system When the Model 306 OCSTM is turned off or in hibernation mode discussed in Section 5 3 the valve is set so that air is routed from the sampling inlet This permits the user to leave the Model 306 ...

Страница 15: ...ve and is near ambient pressure the Model 306 may provide enough flow up to 1 L min and will not need any additional modification If more flow is needed up to 4 L min or the chamber equipment is fairly flow restrictive a needle valve can be installed on the outlet of the internal overflow scrubber see Figure 3 2 next page Adjustment of the needle valve will control the portion of flow that is vent...

Страница 16: ...igure 3 2 Photograph of the Model 306 showing where a needle valve can be installed to increase the flow or pressure at the outlet Ozone Generator Place to install a needle valve for increasing the outlet flow or pressure Outlet Internal Overflow Scrubber ...

Страница 17: ...il the set point temperature is reached The following diagram summarizes the complete LCD menu Menu Cfg O3 Cfg Zer Prg Cal Stp Vout O3_L Sch D T O3_H Figure 4 1 The LCD Menu of the Model 306 Ozone Calibration Source After pressing the select switch the main menu will then be displayed as Menu Cfg O3 Stp Zer Rotating the select switch will move the blinking cursor to highlight the first character o...

Страница 18: ...Vout results in the following submenu Vout Offset Menu Offset xx mV There is an inherent electronic offset in the analog output of the ozone level being produced The Vout offset can be adjusted so that zero ozone will provide a measurable positive voltage It is adjustable from 99 millivolts to 99 millivolts and this setting is used to adjust the voltage output downward to 0 05 V for zero ozone out...

Страница 19: ... in units of ppb You may now exit the Cal submenu by selecting and clicking on See Section 8 for information on calibrating your Model 306 Ozone Cal SourceTM 4 2 2 Program Submenu Choosing the Prg submenu from the Cfg menu allows one to define a program of steps in ozone concentration Choosing Prg results in the following submenu Prg Menu Num Steps x Upon placing the cursor under the currently set...

Страница 20: ...enu select the D T submenu The display will read for example D T 14 32 21 17 10 2016 meaning that it is 21 seconds after 2 32 p m on October 17 2016 military time and European date To change a number in the date and time rotate the Select switch to underline the numeral you want to change A single click then causes a blinking cursor to cover that numeral The number can then be changed by rotating ...

Страница 21: ...flow rate may be checked by rotating the select switch It should be in the range of 4 L min To cease generating ozone push in the select switch until the main menu appears 4 4 Start Step Menu Stp Choosing Stp executes the program of concentration steps you have stored in memory under Cfg Prg The target concentrations are displayed as the instruments steps through the program For example the first ...

Страница 22: ...urns for data manipulation and graphing For data transfer the correct settings are Baud rate 4800 data bits 8 parity none stop bits 1 flow control note or hardware Connect the serial cable to the computer as noted above From the LCD screen use the Select switch to begin operation of the Model 306 to generate ozone or zero air from the O3 Stp or Zer menu Alternatively the terminal emulator may be u...

Страница 23: ... running step or Exits continuous output of ozone and enters hibernation mode set lslope Prompts user to enter new low slope 300 ppb in format x xx set hslope Prompts user to enter new high slope 300 ppb in format x xx set lzero Prompts user to enter new low zero in units of ppbv set hzero Prompts user to enter new high zero in units of ppbv set steps Prompts user to enter step program of steps ti...

Страница 24: ...Hibernate Feature Most remote applications require low power consumption The Model 306 has the ability to enter a hibernation mode where the firmware powers only the essentials to consume less power while waiting to output ozone for a calibration or other experiment During hibernation the valve is open to air from the sample inlet of the Model 306 hibernate Entering this command turns the pump and...

Страница 25: ... 0 001 Ozone If the zero ozone setting is greater than 0 05 V the user should make an adjustment from the Cfg Cal Vout menu to subtract the voltage offset above 0 05 V see Section 4 2 1 6 2 Using the Voltage Output for Error Diagnostics Error messages are displayed as voltages in the range 1 55 V to 2 00 V as described below An output signal below 0 05 V indicates that the 3 way valve is set so th...

Страница 26: ... tubing which is supplied with the instrument and is available from our online store https twobtech com parts online html provides the flexibility of Tygon and the inertness of Teflon The Model 306 Ozone Cal Source may be attached directly to the ozone monitor excess ozone flow will be diverted through an ozone scrubber internal to the Model 306 and any perturbation in total flow rate will be auto...

Страница 27: ...t steps executed either in the LCD menu Stp menu or in the serial menu run step command See Sections 4 4 and 5 2 for information on these options The series of steps are defined by the user using either the LCD menu Cfg Prg or the serial menu See Sections 4 2 2 and Section 5 2 for information on defining the step program The preprogrammed step calibration can be scheduled to run automatically once...

Страница 28: ...o calibrate the instrument consisting of two offsets Z_L and Z_H and two slopes S_L and S_H The offset Z_L and slope S_L are determined for the range of output ozone concentrations of 0 and 30 300 ppb The offset Z_H and slope S_H are used to produce the most accurate ozone concentration in the range 301 1 000 ppbv We recommend returning the Ozone Calibration Source to us annually for a new calibra...

Страница 29: ...59 If we mutually determine that the instrument cannot be repaired onsite we will provide you with a Return Authorization number and a short form to be filled out and returned to our Service Department along with the instrument The figures in Section 10 provide a guided tour of the instrument so that critical components and connectors may be easily identified Section 11 gives a parts list Table 9 ...

Страница 30: ...h and circuit board Remove top cover and reconnect select switch cable to circuit board Serial port does not work Cable not properly connected between serial port 9 pin connector and circuit board Wrong serial cable used Wrong baud rate selected Wrong com port assigned Remove top cover and reconnect serial port cable to circuit board A straight through serial cable is provided Some data collection...

Страница 31: ...URE 10 1 Bottom view of Ozone Cal Source with cover removed Refer to schematic in Figure 1 1 Lamp Inverter Photolysis Cell Lamp Detector Outlet Calibration Air or Sample Air 3 Way Valve Particle Filters Ozone NOx Scrubber Overflow Outlet Ozone Scrubber Air Pump Ambient Sample Air Inlet ...

Страница 32: ...Model 306 Ozone Calibration Source Manual Rev G 1 24 FIGURE 10 2 Top view of Ozone Cal Source with cover removed Serial Number Sticker Flow Meter Printed Circuit Board ...

Страница 33: ... FIGURE 10 3 Printed Circuit Board LCD Temperature Flow Meter Serial Port 5 V Regulator 12 V Power Programming Switches Pressure Sensor Select Switch Lamp Heater Pump Microprocessor Analog Voltage Output Power Switch 3 Way Valve Clock Battery Photodiode ...

Страница 34: ...306 Ozone Calibration Source Manual Rev G 1 26 FIGURE 10 4 Back panel of Ozone Cal Source Outlet Calibration Air or Ambient Sample Air Analog Voltage Output RS232 Serial Port Ambient Air Sampling Inlet Power ...

Страница 35: ...aves for Models 306 and 408 PDASSEMBLY306 Photodiode assembly for Model 306 FLOWMETER306 TSI flow meter assembly for Model 306 SELECTSWITCH Select switch for Models 202 205 306 and 408 OZVLV306 Solenoid valve and cable for Model 306 PWRASSY Internal power jack and cable for Models 202 205 306 400 410 PWRPK 2 5 A 2 5 amp power pack SERUSB Serial to USB adapter SERCABL Serial cable for connecting in...

Страница 36: ...on Source Manual Rev G 1 28 12 SERVICE LOG 2B Technologies Model 306 Ozone Calibration SourceTM Purchase Date ______________ Serial No ______________ Date Calibrated Cleaned New O3 NOx or Outlet Scrubber New Pump New Lamp Other ...

Страница 37: ...Model 306 Ozone Calibration Source Manual Rev G 1 29 Date Calibrated Cleaned New O3 NOx or Outlet Scrubber New Pump New Lamp Other ...

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