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Sensotec Rapidox 1100ZR-H-PFC-LC Instruction Manual

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Rapidox 1100ZR-H-PFC-LC
Oxygen Analyser
(Heller Specific Version)
Instruction Manual
Document D11-47-1
Cambridge Sensotec Limited
Unit 29 Stephenson Road
St Ives
CAMBS
PE27 3WJ
Tel. +44 (0)1480 462142
Fax +44 (0)1480 466032
Mobile (07866) 624236
Sales@Cambridge-Sensotec.co.uk

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  • Page 1 Rapidox 1100ZR-H-PFC-LC Oxygen Analyser (Heller Specific Version) Instruction Manual Document D11-47-1 Cambridge Sensotec Limited Unit 29 Stephenson Road St Ives CAMBS PE27 3WJ Tel. +44 (0)1480 462142 Fax +44 (0)1480 466032 Mobile (07866) 624236 Sales@Cambridge-Sensotec.co.uk...
  • Page 2 Declaration of Conformity Manufacturer: Cambridge Sensotec Ltd. Unit 29 Stephenson Road St Ives Cambs PE27 3WJ, ENGLAND Product Names: Rapidox portable oxygen gas analyser Model Numbers: RX1100-ZF-H-PFC-LC Conform to the following specifications: EMC: EN 61326:2006 Electrical equipment for measurement, control and laboratory use...
  • Page 3 UK users only: If you have purchased any electronic or electrical product from Cambridge Sensotec since 2007 and would like to dispose of it correctly under the WEEE scheme, please contact us and we will be happy to either arrange the collection of the waste or have it returned to our offices for recycling.
  • Page 4 • Do NOT open • There are no user-serviceable parts in this unit • Do not attempt to repair the analyser yourself • Refer all servicing to qualified Cambridge Sensotec personnel • The unit should not be exposed to extreme temperatures <...

  • Page 5: Table Of Contents

    D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual Contents Introduction ......................1 Features ......................... 1 Heller Specific Features ..................2 Technical Specification ..................2 Rapidox Operating Instructions ................3 PFC Connections ................... 4 The Rapidox Analyser - Menu System ............4 Getting Started ....................
  • Page 6 D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual Setting up the Data Logger ................30 Running the Data Logger ................31 Auto Date Stamped Files ................32 Live Time Graphing Screen ................ 33 Main Graph Window ................... 33 Plot Colours....................34 Graph Titles and Labels ................

  • Page 7: Introduction

    4 seconds for a 90% response to a step change in gas compositions. The Rapidox 1100ZR-H-PFC-LC is a fully integral unit complete with a powerful diaphragm pump to provide variable gas sampling up to approximately 1.2 litres per minute.

  • Page 8: Heller Specific Features

    +/- 1000mbar (assuming an unrestricted outlet to room air) Max. gas temperature on input 60°C Requires 2 or 3 user-selectable gas compositions (air is default plus another Calibration two) Table 1: Rapidox 1100ZR-H-PFC-LC technical specification D11-47-1 Last printed 08/11/2016 12:21:00...

  • Page 9: Rapidox Operating Instructions

    Analyser Instruction Manual 5 Rapidox Operating Instructions Figure 1: Rapidox 1100ZR-H-PFC-LC front panel. Numbers are referred to in the text. Note that the pressure reading is DISABLED in the Heller versions. Figure 2: Rapidox 1100ZR-H-PFC-LC rear panel. Numbers are referred to in the text.

  • Page 10: Pfc Connections

    D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual 5.1 PFC Connections On the rear of the PFC coded machines are two terminals labelled “PFC Valve 4- 20mA” and “Supply Valve (In)”. Figure 3: Rear Panel Terminal Strip 1) PFC Valve 4-20mA: These connections provide the 4-20mA signal to control the gas valve.

  • Page 11: Display Behaviour

    D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual display the firmware version followed by the message “HEATING SENSOR”. The sensor will take approximately one minute to come up to temperature, after which the Rapidox will begin to take measurements. The progress of the sensor heater is shown in the form of a bar graph on the LCD (1).

  • Page 12: Menu Access / Passwords

    Pressing ESC takes you out of the password protected area and you will have to re- enter the password to go back in again. If the password has been forgotten please contact Cambridge Sensotec who will advise you on how to recover it.
  • Page 13 D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual cylinders of calibration gas with analysis certificates. Cambridge Sensotec can supply these. Press the ENT button on the front panel keypad (2) to access the menu system. The calibration function is option 1 on the menu list, which can be scrolled using the UP and DOWN arrows.

  • Page 14: Cleaning The Sensor

    D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual and if this is outside the range of expected values then the display will flash and display “G?” to warn you that either the cal gas flowing over the sensor is different to the value you have programmed OR the sensor may be old and approaching the end of its life.

  • Page 15: Alarms

    D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual surface. 5.9 Alarms The Rapidox is fitted with two independent and fully programmable alarm relay outputs, which can be programmed to be either normally open (N/O) (closes on alarm) or normally closed (N/C) (opens on alarm). You have the option of...

  • Page 16: Analogue Outputs

    D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual Alarm 2 can be set in exactly the same way as described above and both alarm circuits are completely independent of each other. Note that you must programme all the parameters for each alarm for the settings to be saved. The bottom line of the LCD will display “Alarm x set”...
  • Page 17 D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual "Lin(ppm)" Linear output mode 8.75 6.25 3.75 1.25 Figure 4: Graph showing the linear output mode option for oxygen The following general formulae can be used to calculate the oxygen from the voltage or current outputs when set to the linear output mode:...
  • Page 18 D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual "Log(ppm)": Log output mode log(O (%)) 8.75 6.25 3.75 1.25 0.0001 0.001 0.01 Figure 5: Graph showing the logarithmic output mode option for oxygen (blue) compared with linear mode (red). The following general formulae can be used to calculate the oxygen from the...
  • Page 19 D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual "Raw(mV)" Sensor mV output mode 8.75 6.25 3.75 1.25 Raw sensor voltage (mV) Figure 6: Graph showing the raw sensor mV output mode option for oxygen The following general formulae can be used to calculate the oxygen sensor raw...

  • Page 20: Setting The Display Units

    D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual there is a fault and the outputs will change to 1mA (0.5V) which is the sensor fault signal. This will recover as soon as the sensor is reconnected and the fault cleared. Additional current and voltage signals are provided by the analyser to...

  • Page 21: Setting The Display Options

    D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual 1. Oxygen: The oxygen reading can be displayed in percent (e.g. 20.95%), ppm (e.g. 0.01ppm) or scientific (e.g. 2.095E+05ppm). If percent is selected the Rapidox will display oxygen as a percentage down to 0.1% and ppm below this value.

  • Page 22: Setting The Baud Rate

    RS485. Once configured at the factory it is not possible to change unless the unit is returned to Cambridge Sensotec Ltd. Data from the Rapidox is sent on demand to the 9-way 'D' type socket (8) on the rear panel and can be read using a simple terminal programme such as 'HyperTerminal' in Windows, or with the user's own custom software.
  • Page 23 D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual Figure 7: Rapidox default COM properties box Alternatively, the baud rate can be reduced to 9600 via the “Set Baud Rate” menu item, using the front panel keypad on the Rapidox. This setting is stored in EEPROM.
  • Page 24 D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual Response: !Sensor cooling[CR][LF] Meaning: Rapidox is still cooling sensor to operating temperature. This can happen when switching from Normal to Helium operating mode. Response: !Cleaning sensor[CR][LF] Meaning: Rapidox has finished heating sensor and is cleaning the sensor for 5...

  • Page 25: Rs485 Protocol

    D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual 5.15.2 RS485 protocol Please contact Cambridge Sensotec for further information on this feature. 5.16 Printing If you have purchased the printer option then you have the option to print out various data from the analyser straight on to thermal paper. Simply connect the printer to the unit using the serial socket on the rear of the machine and make sure the printer is switched on (battery and mains versions are available).

  • Page 26: Rapidox Software Instructions

    D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual 6 Rapidox Software Instructions 6.1 Software Installation It is possible to programme a range of variables to the Rapidox using an RS232 (or RS485 if configured) link with a PC running MS-Windows (all versions) and the supplied Rapidox software.

  • Page 27: On-Screen Help

    D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual Figure 9: Rapidox configuration page. Note the actual values used may differ from those shown above. The yellow status box at the bottom will display confirmation that the Rapidox was found and the result of the last action, or any error messages if there is a problem with communication.

  • Page 28: Reconfiguring The Analyser

    D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual written to the Rapidox, the new variables remain permanent until overwritten. To read the current configuration stored in your Rapidox select ‘Read Analyser Configuration’ from the ‘File’ menu, or click the ‘Read’ button on any of the ‘Config’...

  • Page 29: Config 1 Screen

    The field parameters are as follows: 6.5.1 Config 1 Screen Oxygen Range: Not available for the Rapidox 1100ZR-H-PFC-LC Oxygen Units & Format: See Section 5.11 for a full description. Use the drop down box to select PPM EXPONENTIAL, PPM MIXED, AUTO%/PPM, PRESSURE or N2 BALANCE.

  • Page 30: Config 2 Screen

    D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual 6.5.2 Config 2 Screen Figure 11: Configuration 2 page. Note the actual values used may differ from those shown above. Calibration Gas 1, 2 & 3: These boxes are greyed out in this version and the data is for information purposes only.

  • Page 31: Alarm Config Screen

    D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual correction function only and provides enhanced accuracy in the correction. The default is 1013mbar which is the average ambient pressure in the UK. 6.5.3 Alarm Config Screen Figure 12: Alarm configuration screen. Note the actual values used may differ from those shown above.

  • Page 32: On-Screen Lcd

    D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual contacts are open circuit when an alarm is not activated and Normally Closed means that the contacts are closed when the alarm is not activated. Alarm Setpoints: Use this box to programme the set-point value at which you want the alarm to activate.
  • Page 33 D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual Use the four buttons to calibrate or clean the sensor directly from the PC. Before calibrating the analyser with gas, make sure that you know the exact O concentration in your gas bottle AND you have a calibration certificate from the gas supplier confirming the concentration.

  • Page 34: Calibration Error Messages

    D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual This is your final chance to change your mind before committing to a calibration. Check carefully that the gas value on the screen actually matches the value of your calibration gas before clicking on “Yes” to complete the calibration. At this point you should observe that the LCD display will reset itself to the correct calibration.

  • Page 35: Software Utilities

    Settings. 6.9.2 Log Diagnostics For Use this option to log diagnostic data that can be e-mailed to Cambridge Sensotec to help diagnose problems. Select the time you want to log the data for and then wait for the logging to complete. During the diagnostic logging period the yellow status box will display the location of the logged data file which will be sent to the main Rapidox program directory.

  • Page 36: Image Grabber

    This is a simple function to allow the user to copy the software screens into the Windows clipboard. This is useful for diagnosing problems; allowing a quick and simple way of sending the Sensotec technicians actual screen shots of the software. To recover the images simply press CTL+V to paste.

  • Page 37: Running The Data Logger

    D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual Figure 21: Data Logging page During logging, data from the analyser is shown in the central area of this page. The data is displayed in the following columns: time (in seconds), the raw signal...

  • Page 38: Auto Date Stamped Files

    D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual The blue progress bar displays the state of completion of the run, and the blue box to the right of it the same information as a percentage. You can stop the run at any time by selecting ‘Stop’...

  • Page 39: Live Time Graphing Screen

    D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual 7.6 Live Time Graphing Screen The Rapidox data-logging package includes a live-time graphing facility that allows you to monitor the progress of your data in a graphical format (see Figure 22). To access the graph check the box labelled ‘Show Graph’. The graph will appear in a new window, and can be accessed at any time without disturbing a run that is already in progress.

  • Page 40: Plot Colours

    D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual 7.8 Plot Colours The default colours used on the graph are set to blue for oxygen and red for pressure. To change the colours double-click on the coloured axis label at the top of each axis.

  • Page 41: Using The Cursor

    D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual analyser. 7.12 Using the Cursor Clicking and holding the left mouse button with the pointer over the ‘C’ at the top of the plot area activates the cursor, which appears as a vertical dashed line on the plot.

  • Page 42: Loading An Old Run

    D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual display the pressure taken from the internal pressure sensor. The axis is linear and auto-scaling. To select the mode of the secondary axis select ‘view’ and then ‘second axis display’. Choose from ‘none’ or ‘pressure’.

  • Page 43: Changing The Data Logging Parameters Mid-Run

    D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual 7.21 Changing the Data Logging Parameters Mid-run Once the data logging has begun you may change the sample interval time by pausing the data logger and then entering a new value for the time interval. The data logger can then be resumed with the new values in place.

  • Page 44: Troubleshooting

    If so then the heater may be struggling to heat the sensor with such cooling gas present. Does the problem go away if room air is allowed into the analyser? Contact Cambridge Sensotec for advice. If the message continues for around eight minutes then the analyser will give up and indicate that the internal heater has failed and the sensor needs replacing.

  • Page 45: Warranty

    Refer to the “Troubleshooting” section of your instruction manual to identify and possibly correct the problem. b] If the fault cannot be resolved, please contact the Cambridge Sensotec service and repair centre at the address given on the cover of the manual.
  • Page 46 D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual c] The defective goods shall be returned to the Seller's premises at the Purchaser's expense if so requested by the Seller. d] Any repaired or replaced goods shall be redelivered by the Seller free of charge to the original point of delivery but otherwise in accordance with and subject to these Conditions of Sale.

  • Page 47: Appendix : Heller Specific Software Features

    D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual 9 Appendix : Heller Specific Software Features 9.1 Proportional Flow Control (PFC) This appendix to the main Rapidox instruction manual describes the additional software functions that allow proportional flow control (PFC) using a Rapidox analyser.

  • Page 48: Software Description

    D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual 9.3 Software Description The PFC version of the standard Rapidox software has some new tabs labelled “PFC Control” and “SW Alarm Config”. SW stands for Software to distinguish it from HW as in ‘HW Alarm Config’ which is the programming of the physical alarm relays on the back of the analyser.
  • Page 49 D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual prevent the gas valve opening and closing excessively and wearing out, the PFC operates around an upper and lower O value which defines the PFC window. Inside the window the PFC stops adjusting the gas valve and waits for the gas reading to creep outside the window region again.
  • Page 50 D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual Integral Regulation Gain: This is the “I” term in PID control. The I term is a correction factor that looks at any offset caused by the P term working on its own and makes a correction to improve the final target oxygen value.

  • Page 51: Sw Alarm Config Tab

    D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual 9.5 SW Alarm Config tab Figure 26: Software Alarm Config tab The SW (software) Alarm Config tab allows the user to set alarms in software to be used by a DDE (Dynamic Data Exchange). The settings here create links for the DDE to interpret using the standard protocol as listed in 9.7 below.

  • Page 52: Data-Logging With Pfc

    D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual Hold Channel Alarms: This only applies to the multi-channel Rapidox 1100ZR3 analyser that is fitted with a multiplexer and is greyed out in this version. Measure Delay (s): This only applies to the multi-channel Rapidox 1100-...

  • Page 53: Dde Protocols

    D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual Also note that the “save to file” and “auto-date stamped files” options are both selected by default in this version to ensure that data is always collected, saved and stored. The PFC signal can also be viewed on the Rapidox graph facility. Simply click on “show plot”...
  • Page 54 D11-47-1 Rapidox 1100ZR-H-PFC-LC O Analyser Instruction Manual Desired O2 level in PPM: High and Low window set as PPM_level +/- 20ppm. Included for backwards compatibility "RAPIDOX|Main!PPM_level" Desired O2 level window in PPM "RAPIDOX|Main!HighO2SetPoint" "RAPIDOX|Main!LowO2SetPoint" Current O2 level in PPM "RAPIDOX|Main!lbl_PPM_O2"...
  • Page 55 APPENDIX 1: MENU FLOWCHART FOR RAPIDOX 1100Z(x)-H-OL 2.095E+05ppm 0.0mbar ESC - Back to Menu List. No changes 1-Calibrate Calib: O High 2.095E+05ppm 2.087E+05ppm 2.095E+05ppm ® ® ® ® ® (prompts 1) (prompts 2) (prompts 3) ..calibrated Enter for two seconds to calibrate Edit O High Displays message for 1.5 seconds...
  • Page 56 Continued from page 1 ESC - Back to Menu List. No changes 4-Set Outputs out: lin(ppm) 1.000E+01 = 0V 2.500E+05 = 10V ® ® ® ® (prompts 1) (prompts 6) (prompts 3) (prompts 3) (Options: lin(ppm), raw mV, log(ppm)) Edit O (ppm) Edit O (ppm)
  • Page 57 ESC - Back to Menu List. No changes Continued from page 2 10-Load Defaults Load Defaults? ® ® ® Defaults Loaded (prompts 1) (prompts 4) Enter for two seconds to load defaults Displays message for 1.5 seconds 11 - Password Menu Password: 0*** Password: Enable Password: Enable...

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