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Bertin Technologies ALPHAGUARD D50 User Manual

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USER MANUAL
USER MANUAL
ALPHAGUARD
Types D50, D2000, DF2000
Document reference: 20190603A
AlphaGUARD is a registered trademark of Bertin Technologies.
© 2019 Bertin Technologies. All rights reserved
1
WWW.BERTIN-INSTRUMENTS.COM

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Summary of Contents for Bertin Technologies ALPHAGUARD D50

  • Page 1 USER MANUAL USER MANUAL ALPHAGUARD Types D50, D2000, DF2000 Document reference: 20190603A AlphaGUARD is a registered trademark of Bertin Technologies. © 2019 Bertin Technologies. All rights reserved WWW.BERTIN-INSTRUMENTS.COM...
  • Page 2 Neither Bertin Technologies nor its employees can be held liable for any loss or expense arising from such use. The information contained in this document is intended solely for use with this Bertin Technologies product.

  • Page 3: Table Of Contents

    USER MANUAL Contents Introduction........................5 Safety instructions ....................... 6 Range of products ...................... 7 Radon detector ......................8 Ionization Chamber................... 8 Digital Signal Processing (DSP) ..............10 Instrument housing ....................11 Functional Elements ....................14 Multifunctional Display with user keys ............14 Electrical Connection Block ................
  • Page 4 Basic functions AlphaGUARD D50 ..............74 Basic functions AlphaGUARD D2000 ............75 Basic functions AlphaGUARD DF2000 ............77 Multiparameter Features AlphaGUARD D50, D2000, DF2000 ....79 Range of delivery ...................... 81 Appendix ........................83 AlphaGUARD models – characteristics and application areas ....83 Setup of Bluetooth connection ..............

  • Page 5: Introduction

    USER MANUAL 1 INTRODUCTION The AlphaGUARD is the center piece of a professional portable measuring system for the continuous determination of the radon and radon progeny concentration in air, as well as selected climatic parameters. Depending on the model and respective configuration, AlphaGUARD...

  • Page 6: Safety Instructions

    USER MANUAL Thanks of the internal pump, the AquaKIT and the Soil Gas Probe, suitable accessories for professional measurement of radon in water samples and soil gas can be easily operated in combination with the AlphaGUARD Monitor. With the REM1 (Radon Exchange Module) an all-in-one solution for time-resolved radon in water monitoring with the AlphaGUARD DF2000 is available.

  • Page 7: Range Of Products

    USER MANUAL 3 RANGE OF PRODUCTS AlphaGUARD is manufactured in different versions (→ models/types). The available models are optimized for specified measurement applications and are therefore different in configuration in view of hard and firmware. Though all models are based on the same detector, according to the spectrum of provided applications they feature mechanical adaptations and use optimized evaluating algorithms for the respective operation modes.

  • Page 8: Radon Detector

    USER MANUAL It is possible to upgrade the D50 and D2000 versions to higher versions. Following upgrades are possible: D50 → D2000 D50 → DF2000 D2000 → DF2000 4 RADON DETECTOR In standard operating mode the measuring gas gets by diffusion through a large- surface glass fiber filter into the ionization chamber.
  • Page 9 USER MANUAL Fiberglass Anode Cathode Isolator Inlay stainless steel Diffusion Active volume = 0,56 liter High Output voltage signal of Fiberglass Anode Cathode Isolator Inlay stainless steel Air inlet Active volume = 0,56 liter Air outlet (pump) High Output voltage signal of Figure 1: AlphaGUARD ionization chamber, above in diffusion mode, below in flow mode (schematic)

  • Page 10: Digital Signal Processing (Dsp)

    USER MANUAL Digital Signal Processing (DSP) For digital signal processing (Digital Signal Processing - DSP) there are three independent signal processing channels. To each channel belongs a specific analog-digital converter. This network concept allows analyzing the entering preamplifier signals simultaneously according to three different feature complexes.

  • Page 11: Instrument Housing

    USER MANUAL signal noise level is with high pulse densities directly proportional to the square root of the total ionization stream. By determined use of this relation the current measurement in the picoampere range can be done with extremely high precision. Simultaneously by this a regularly appearing source of errors is eliminated, the drift of the preamplifier offset, which results of the temperature sensitive FET-structure of the preamplifier.
  • Page 12 USER MANUAL Figure 3: AlphaGUARD - front side Figure 4: AlphaGUARD – handle side WWW.BERTIN-INSTRUMENTS.COM...
  • Page 13 USER MANUAL The ergonomically designed instrument handle may be rotated through 360° and in this way orientated in six independent positions. Front side Front side Desk position Carrying position #1 Front side Front side Piling position Carrying position #2 Suitcase position Figure 5: Standard variations of the handle position of AlphaGUARD WWW.BERTIN-INSTRUMENTS.COM...

  • Page 14: Functional Elements

    USER MANUAL 6 FUNCTIONAL ELEMENTS The AlphaGUARD has the following functional elements: Multifunctional display with user keys Electrical connections Air inlet and outlet Figure 6: Front panel of the AlphaGUARD Multifunctional Display with user keys The AlphaGUARD is equipped with an illuminated graphic display (resolution: 160 x 104 pixels) and 5 user keys.
  • Page 15 USER MANUAL The AlphaGUARD turns on by pushing the On / Off switch. After turning on the AlphaGUARD the start screen with Bertin logo and clock is displayed for 5 sec. The first values of the temperature, the air humidity and the air pressure are shown after further 2 sec.

  • Page 16: Electrical Connection Block

    USER MANUAL The menu and the display of the current measuring values can be suppressed by entering a settable keycode. There are two levels of locking the device: Lock menu: The last displayed acquisition screen is visible, no access to menu or the other acquisition screens. Lock menu and display: The device is completely locked, no access on menu or acquisition screens.
  • Page 17 USER MANUAL USB connector USB port for PC connection. The connector cable delivered with the “DataVIEW PRO” or the "DataEXPERT" software package has to be plugged into this interface, if communication between AlphaGUARD and the user’s PC is required. RS232 interface The RS232 interface is implemented via a 9-pin SUB-D connector.
  • Page 18 USER MANUAL For the connection of external sensors with digital output (counting signals), I²C or analogue output (with voltage of 0 - 2,5 V) Pin assignment: Pin 1 AN_OUT Pin 2 Pin 3 Pin 4 VEXT Enable Pin 5 GNDA Pin 6 Analog input Pin 7...
  • Page 19 USER MANUAL Moreover, the Ext.1 socket (pin 8) provides a control signal for synchronizing connected devices with the measuring cycle of the AlphaGUARD. This control signal is triggered each time after finishing a measuring cycle for 1 ms to "High" (+3,3 V).

  • Page 20: Air Inlet And Outlet

    USER MANUAL Air inlet and outlet On the left side of the front plate the air inlet and the air outlet are located. Figure 8: Air inlet with adapter for diffusion mode (left picture) and for flow mode (just for AlphaGUARD DF2000, right picture) 6.3.1 Diffusion mode In diffusion mode the diffusion adapter is mounted which is equipped with a grid.
  • Page 21 USER MANUAL With the flow-through adapter (screw cap) the AlphaGUARD DF2000 can be operated in flow mode (open and in closed cycle). Converting AlphaGUARD DF2000 again for diffusion mode requires the above steps in reverse order. It is sufficient to screw the diffusion adapter slightly by hand as it has no sealing function.

  • Page 22: Alphaguard Menu

    USER MANUAL 7 ALPHAGUARD MENU The following flowchart gives an overview of the complete menu structure: Acquisition Acquisition 1/5 Acquisition 2/5 Acquisition 3/5 Scroll mode Graph selection Acquisition 4/5 Acquisition 5/5 Function menu Set marker Set location ID Set operation Set pump flow Set interval mode Lock device...

  • Page 23: Acquisition

    USER MANUAL Acquisition By means of five acquisition windows all important information on the configuration as well as current measurement is available. Via pushing the Scroll up or Scroll down button 7.1.1 Acquisition 1/5 Displays the current measurement values of the radon concentration in Bq/m³ (or pCi/l), the temperature in °C (or °F), the relative air humidity in %rH, the air pressure in mbar or hpa (or inHg) and the gamma ambient dose rate in nSv/h (if equipped with dose rate module).
  • Page 24 USER MANUAL 7.1.2 Acquisition 2/5 Display of the current measurement values of the external sensors (2 x TTL signals & 2 x analogue signals). When operating in Radon/Thoron discrimination mode, the gamma ambient dose rate is shown on page 2 also (DF2000). Figure 11: Acquisition window 2/5 The AlphaGUARD is equipped with a counter module that allows processing of externally produced count rates (e.g.
  • Page 25 USER MANUAL 7.1.3 Acquisition 3/5 This window allows the simultaneous chart of two data values. The last 143 measurement values of each parameter can be displayed simultaneously. The time base depends on the chosen measuring cycle: With a measuring cycle of 1 min, the values of the last 143 min, with a measuring cycle of 10 min, the last 24 hours and with a measuring cycle of 60 min, the last 6 days can be displayed.
  • Page 26 USER MANUAL The parameters can be freely chosen by pushing the Enter button for 2 sec. The parameters can be selected by pressing the Scroll up and Scroll down button and confirming by pushing the Enter button for 2 sec. Grap selection C h a n n e l 1 : C h a n n e l 2 :...
  • Page 27 USER MANUAL Figure 15: Acquisition window 4/5 Note The mean values are only available after the respective time period is completed. 7.1.2 Acquisition 5/5 This window allows to display information on the selected measurement mode and measurement cycle, the index number of the current measurement series with quantity of measurement points, its start and end time as well as information on the interval mode.

  • Page 28: Function Menu

    USER MANUAL Function menu The function menu can be called up by pushing the menu button . Several functions and settings are available in the function menu. Use the Scroll up or Scroll down button to navigate and push the Enter button to enter a sub item. Function menu S e t m a r k e r S e t l o c a t i o n I D...
  • Page 29 USER MANUAL Figure 18: Setting the marker 7.2.2 Set location ID To associate different measurement locations a location ID between 0 and 31 can be selected. The location ID is included in the read out data series. It can be selected by using the Scroll up or Scroll down button and pushing the Enter button for 2 sec.
  • Page 30 USER MANUAL Use the Scroll up or Scroll down button to navigate and push the Enter button for 2 sec. to choose an operation mode. Set operation mode 1 0 m i n , d i f f u s i o n , R a d o n 6 0 m i n , d i f f u s i o n , R a d o n 1 m i n , f l o w , R a d o n 1 0 m i n , f l o w , R a d o n...
  • Page 31 USER MANUAL Set pump flow E n t e r t h e n o m i n a l p u m p f l o w v a l u e ! 2.00 l/min U s e ↑ ↓ t o c h a n g e a n d p r e s s <...
  • Page 32 USER MANUAL 7.2.5 Set interval mode When operating the AlphaGUARD in the interval mode, the measurement takes place just in defined time period for a defined sample time, e.g. every 60 minutes for 30 minutes. With this mode an extended battery life time can be achieved for flow operation.
  • Page 33 USER MANUAL The chart in Acquisition 3/5 is modified when operating the AlphaGUARD in interval mode. The interval is adapted to the chosen measuring time. Every time period is marked with a dotted line. Figure 24: Acquisition screen 3/5 with activated interval mode 7.2.6 Lock device The AlphaGUARD can be locked and thereby protected against manipulation.
  • Page 34 USER MANUAL Acquisition 1/5 3630 687 Bq/m³ ± Tn 11405 3490 Bq/m³ ± +18.6 °C 63 %rH 1004 mbar 1 1 . 0 8 . 1 6 1 2 : 2 7 : 4 7 4 m i n Figure 26: Locking screen without “hide display content” If “Hide display content”...
  • Page 35 USER MANUAL 7.2.7 Acoustic monitoring This function acknowledges each alpha event recorded by AlphaGUARD with an acoustic signal in the form of a beep. The audio output is enabled by selecting ”ON”. Acoustic monitoring O F F U s e ↑ ↓ t o c h a n g e a n d p r e s s <...
  • Page 36 USER MANUAL Figure 30: Configure channel 1 or 2 - enter number of digits for decimal places Enter the sensor’s measurement value corresponding to 0,0 V. Configure channel 1 E n t e r t h e v a l u e c o r r e s p o n d i n g t o 0 .
  • Page 37 USER MANUAL Note Just the units used for MultiSensor (l/min, °C, Pa) are transferred during data read out by DataVIEW or DataEXPERT. All other units are converted to a percentage presentation (0 % … 100 %) when being read out by DataVIEW or DataEXPERT. 7.2.9 Settings menu The Settings menu, in two parts, provides the system settings of the AlphaGUARD.
  • Page 38 USER MANUAL 7.2.9.2 Set time zone Select the time zone with or without daylight saving time (DST) via using the Scroll up or Scroll down button and acknowledge by pushing the Enter button for 2 sec. Set time zone U T C : 1 0 : 2 7 : 4 7 1 1 . 0 8 . 2 0 1 6 L o c a l : 1 2 : 2 7 : 4 7 1 1 .
  • Page 39 USER MANUAL Set key code U s e ↑ ↓ t o c h a n g e a n d p r e s s < ┘k e y t o a c c e p t ! 1 1 . 0 8 . 1 6 1 2 : 2 7 : 4 7 4 m i n Figure 38: Setting the key code for locking the AlphaGUARD...
  • Page 40 USER MANUAL Acquisition 1/5 3630 687 Bq/m³ ± Tn 11405 3490 Bq/m³ ± +18.6 °C 63 %rH 1004 mbar 1 1 . 0 8 . 1 6 1 2 : 2 7 : 4 7 4 m i n Figure 40: Alarm indication by exclamation mark (!) on the top right corner Note The alarm is disabled when reducing the alarm threshold to values <...
  • Page 41 USER MANUAL 7.2.9.7 Set backlight The backlight mode can be changed by using the Scroll up or the Scroll down button. The selection has to be acknowledged by pushing the Enter button. Selecting “Backlight auto”, the back light is switched off after 30 sec. of inactivity. The back light is switched on again with any keystroke.
  • Page 42 USER MANUAL 7.2.9.9 Set interface The AlphaGUARD provides three interfaces: USB, RS232 and Bluetooth (for the setup of the Bluetooth connection with a computer, see point 14.2). Just one interface can be used at the same time and has to be selected before usage. The other two interfaces are deactivated to reduce battery consumption.
  • Page 43 USER MANUAL ”communication module” of the DataVIEW or DataEXPERT software recognizes the set baud rate of the AlphaGUARD automatically. The transfer of a several days lasting measuring series out of the value storage of the AlphaGUARD into the working memory of a PC lasts with 115 200 Bd some seconds, max.
  • Page 44 USER MANUAL 7.2.9.11 Clear memory The data storage of the AlphaGUARD can be deleted by using the Scroll up or the Scroll down button to select “YES”. The selection has to be acknowledged by pushing the Enter button. Clear memory Clear memory A r e y o u s u r e y o u w a n t t o c l e a r t h e m e m o r y a n d a l l...
  • Page 45 USER MANUAL 7.2.9.12 Show versions This window gives an overview of the version numbers of the hardware and software as well as information on the radon background of the measurement chamber: AlphaGUARD DF2000 version of AlphaGUARD HW: REV 1.0 hardware revision AlphaGUARD BT: 1.0.14 firmware revision Bluetooth module FW:AG0.013 v.
  • Page 46 USER MANUAL Version A l p h a G U A R D D F 2 0 0 0 H W : R E V 1 . 0 B T : 1 . 0 . 1 4 F W : A G 0 . 0 1 3 v . A u g 1 0 2 0 1 6 S N : A G 0 0 0 0 0 4 C F : 4 F F F h F W : P M 0 .

  • Page 47: Quality Assurance System

    USER MANUAL 8 QUALITY ASSURANCE SYSTEM Switching on the AlphaGUARD also activates its internal quality assurance system. E.g. the microprocessor automatically performs a series of control routines and plausibility checks in an always repeating mode. Reporting of QA results is done the way that the values are filed simultaneously with the measured radon values and environmental parameters in the storage of the instrument.

  • Page 48: Sysqag - Hardware Condition

    USER MANUAL SYSQAG - hardware condition Short Description of quality parameter Recommendation definition DCOFF Offset of preamplifier outside of target Contact your local range Bertin distributor in case of increased incidence LOW_HV Radon detector high voltage outside Contact your local of target range Bertin distributor in case of increased...
  • Page 49 USER MANUAL EXT_POW AlphaGUARD runs on external power supply CHARGER Charging the battery of AlphaGUARD in process PUMP_ERR Flow of pump module outside of valid Check tubes connected to the control range AlphaGUARD (ensure that there is no interruption of the flow e.g.

  • Page 50: Dataqa - Data Quality

    USER MANUAL DATAQA - data quality Short Description of quality parameter Recommendation definition LOLIM Measuring value was outside lower measuring range (< 2 Bq/m³) or Rn-error was higher than respective Rn-value (AlphaGUARD display shows the radon value preset with "<" UPLIM Measuring value exceeded the upper measuring range...
  • Page 51 USER MANUAL QAFIT Inadmissible differences between Contact your local Bertin results of corresponding analyzing distributor case algorithms diagnosed increased incidence Inadmissible drift phenomena Contact your local Bertin QABAS diagnosed in the preamplifier unit distributor case increased incidence MARKER Marker flag Operation Used operation mode (e.g.

  • Page 52: Measuring Operation

    USER MANUAL 9 MEASURING OPERATION Depending on the particular model the AlphaGUARD disposes of different measurement modes which are optimized for their respective measuring applications in terms of the hardware configuration as well as of the applied evaluation algorithms (firmware). Diffusion mode (D50, D2000, DF2000) Measuring in diffusion mode is designated for ordinary radon monitoring outdoors or in buildings.

  • Page 53: Flow Mode (Df2000)

    USER MANUAL Figure 48: Air inlet with mounted diffusion adapter As soon as the respective measuring cycle is finalized the recent data are shown on the display. For the description of the acquisition windows see 7.1. The measurement data stored by the AlphaGUARD can be downloaded at any time, i.e.
  • Page 54 USER MANUAL Important note Operate the active adapter only with connecting in series the external radon progeny filter (enclosed accessory); otherwise there is acute danger of contamination of the plain paper filter at the chamber entrance. Note The flow through adapter must be mounted. Even with flow measurements in open circuit, the screw cap should be installed in order to avoid distortion of the measurement values caused by back diffusion - which might occur especially in cases very low flow rates are...
  • Page 55 USER MANUAL Figure 50: Exchanging the diffusion and the flow through adapters The status of the pump operation is indicated by a pump symbol in the upper right of the screen. Following states are possible: Flow mode activated, pump flow within operational limits Flow mode activated, flow of the pump disturbed (e.g.

  • Page 56: Radon/Thoron Discrimination Mode (Only Df2000)

    USER MANUAL Radon/Thoron discrimination mode (only DF2000) The measuring and evaluation procedure - for continuously differentiating radon from thoron in the ambient air - makes use of the significant difference in the half- lives of these nuclides (radon: 3,8 days, thoron: 55 sec.). This measuring mode requires splitting the applied quasi-continuous 10min measuring cycle into three subsequent phases.
  • Page 57 USER MANUAL Note With the continuous radon/thoron operation mode, the AlphaGUARD generates useful results in 10 min cycle up to a mix ratio between thoron and radon of 1:5 and vice versa (5:1). With bigger differences in ratio, the uncertainties of individual results on the part of the gas with the lower concentration becomes too large in order to deliver qualified data for the respective parameter.

  • Page 58: External Accessories

    USER MANUAL 10 EXTERNAL ACCESSORIES At this place the external accessories of the AlphaGUARD can only be described as far as the correct connection to the AlphaGUARD is concerned. Details relating to the parameters of the performance of these components are available in the corresponding technical description.
  • Page 59 USER MANUAL Figure 51: AlphaPM connected as front-end to AlphaGUARD for simultaneous monitoring of radon and its decay products Note Only the original cable may be used The power supply of the AlphPM is assured via its built-in rechargeable battery and/or the mains-/ charging unit The sampling time of the AlphaPM has to be set to ”cont_h”...

  • Page 60: Aquakit

    USER MANUAL Reference For details regarding the simultaneous measurement of radon decay products please see the AlphaPM Instruction Manual. AquaKIT In combination with AlphaGUARD DF2000 the AquaKIT allows determining the radon concentration in water samples directly and precisely. The glass vessels of the AquaKIT measuring equipment grant a hermetically sealed enclosure of the radon, expelled from the water samples as well as a fast change of samples - which prevents incorrect measurements as a consequence of leakages.

  • Page 61: Rem1

    USER MANUAL REM1 The REM1 (Radon Exchange Module) is an all-in-one solution for time-resolved radon monitoring in water with the AlphaGUARD DF2000. The setup is equipped with an embedded pump for water sampling. The portable suitcase includes all necessary accesories, for a well-suited set up, for laboratory as well as field measurements.

  • Page 62: Multisensor Unit D/T

    USER MANUAL Multisensor Unit D/T The Multisensor Unit is an external sensor module with precise differential pressure- and temperature sensor particularly developed for AlphaGUARD (e.g. for radon measurement applications in buildings). A shielded cable belongs to the delivery of both types. The cable is provided with a plug for the Interface for external sensors 1.

  • Page 63: Soil Gas Probe

    USER MANUAL For this purpose the 1-, 10, resp. 60-min. measuring cycle (flow or diffusion) have to be chosen at the AlphaGUARD and the analog input 1 and 2 have to be adapted to the used Multisensor Unit (see 7.2.8). Now the correctness of the appearing measuring values can be displayed in the screen of Acquisition 2/5 (see 7.1.2).
  • Page 64 USER MANUAL The full procedure for soil gas measurement is provided with the soil gas probe. As described during this procedure it is required to switch off the pump of the AlphaGUARD manually: By pressing the 'OK' key for 5 seconds in the numeric measurement windows (Acquisition 1/5 and 2/5), the pump can be switched off in the 1min and 10min Radon flow mode (manual stop).

  • Page 65: Differential Pressure Sensor Dps-5000

    USER MANUAL Differential Pressure Sensor DPS-5000 The DPS-5000 differential pressure sensor is an external sensor module optimized for the combined use with a radon monitor of the type AlphaGUARD DF2000. The measuring system DPS-5000 – AlphaGUARD DF2000 allows simultaneous recording of differential pressure drawing therewith correlations to the radon concentration values and meteorological parameters measured by AlphaGUARD.

  • Page 66: Equipment For Calibration Measurements

    USER MANUAL Reference For details regarding the operation of the DSP-5000 in combination with the AlphaGUARD DF2000 please see the DSP-5000 Manual. Equipment for calibration measurements A wide range of calibration equipment can be provided: Gas-tight calibration containers in different sizes, active coal filters, radon calibration source, etc., suitable for different applications from small re-calibration systems to large calibration facilities e.g.

  • Page 67: Remote And Stationary Monitoring

    USER MANUAL Remote and stationary monitoring For remote access of the AlphaGUARD as well as for the integration of one or more AlphaGUARD units into real time online networks, suitable solutions for specific requirements are available. These solutions are based on publicly available IT services and approved transmission components.
  • Page 68 USER MANUAL The communication with the AlphaGUARD is realized with a COM server connected to the AlphaGUARD. The COM server is accessable via LAN and/or Internet by using a virtual COM interface. Figure 60: Setup for manual remote read-out and parametrization 10.10.2 Real-time online monitoring This solution provides full online functionalities with real time data acquisition, alarm function, visualization, analyzing and reporting by using the software DataEXPERT...
  • Page 69 USER MANUAL 10.10.3 Stationary monitoring For the continuous control of radon concentration at measurement points in remote areas, remote radon monitoring stations can be provided. Such monitoring stations can be used for radiation protection purposes or applications using radon as a tracer (e.g. in high seismological risk level areas, the radon in soil gas can be used as an indicator for seismic activities).

  • Page 70: Alarm Outbreak Box

    USER MANUAL Alarm Outbreak Box The AlphaGUARD provides an adjustable alarm threshold for the radon concentration. To extract alarm signals when the alarm threshold is exceeded, the Alarm Outbreak Box can be connected to the power supply connector of the AlphaGUARD (the power supply can be connected to the Alarm Outbreak Box).

  • Page 71: Valve Selector

    USER MANUAL Valve Selector The Valve Selector Unit is a microprocessor-controlled device and serves as supplementary module to the AlphaGUARD for timer regulated switching between up to five gas entrances. This enables the AlphaGUARD Radon Monitor for quasi-simultaneously monitoring the radon concentration of up to five different environments by performing successive measurement steps in an always repeating manner.

  • Page 72: Particular Information For Use

    USER MANUAL 11 PARTICULAR INFORMATION FOR USE AlphaGUARD disposes of an internal real time clock. When there are simultaneous measurements with several instruments the clocks have to be synchronized in advance. Note Only when the system clocks run parallel a correct correlation of measuring values is possible.
  • Page 73 USER MANUAL The automatic background correction of the AlphaGUARD can only be executed at the beginning of a measuring series. Therefore with measurements lasting longer than six months the set-up of a new measuring series should be manually enforced, i.e. immediately after every half year, January 01 and July 01 (for example by ON/OFF or setting the system clock with DataVIEW or DataEXPERT).

  • Page 74: Technical Data

    USER MANUAL 12 TECHNICAL DATA Basic functions AlphaGUARD D50 Ionization chamber, HV | 750 VDC Type of radon detector Mode of operation 3D-alpha spectroscopy and current mode Total detector volume 0,62 liter (38 cubic inches) Active detector volume 0,56 liter (34 cubic inches) Type of Radon progeny filter Fine dust filter (retention coefficient >99,9 %)

  • Page 75: Basic Functions Alphaguard D2000

    USER MANUAL Operation from internal > 10 days battery Weight (incl. Internal battery) 6,2 kg (13,7 lbs) Dimensions without handle 282 mm x 340 mm x 123 mm (L x W x H) Dimensions with handle 329 mm x 355 mm x 123 mm (L x W x H) System operating range Temperature...
  • Page 76 USER MANUAL Background signal due to internal detector < 1 Bq/m³ (0.03 pCi/l) contamination Measurement range Radon 2 Bq/m³ … 2 000 000 Bq/m³ (Rn-222) (<0.05 pCi/l … 54 000 pCi/l) Resolution on LCD display 1 Bq/m³ (0.01 pCi/l) Fold back protection >...

  • Page 77: Basic Functions Alphaguard Df2000

    USER MANUAL Basic functions AlphaGUARD DF2000 Ionization chamber, HV | 750 VDC Type of radon detector Mode of operation 3D-alpha spectroscopy a n d current mode Total detector volume 0,62 liter (38 cubic inches) Active detector volume 0,56 liter (34 cubic inches) Type of Radon progeny filter Fine dust filter (retention coefficient >99,9 %) (detector entry window)
  • Page 78 USER MANUAL 10 min, 60 min (Diffusion) Measurement modes and 1 min, 10 min (Flow) 10 min (Rn/Tn mode) cycles Interval mode (applicable for flow mode) Flow-regulated: 0,05 - 0,5 l/min, 1 l/min, Flow range of pump 2 l/min Up to 60 000 measurement points ~ 40 days at 1 min measuring cycle Data capacity (non-volatile) ~ 400 days at 10 min measuring cycle...

  • Page 79: Multiparameter Features Alphaguard D50, D2000, Df2000

    USER MANUAL Multiparameter Features AlphaGUARD D50, D2000, DF2000 Atmospheric air pressure Piezo-resistive semiconductor sensor Type of sensor 700 mbar ... 1100 mbar Measurement range 0,1 mbar Resolution displayed on Screen Resolution under DataVIEW or 0,1 mbar DataEXPERT Initial calibration uncertainty...
  • Page 80 USER MANUAL Relocation sensor 3-axis, capacitive semiconductor sensor Type of sensor Events detected Gentle acceleration (low-freq. only) Notation for DataEXPERT Number of events per cycle (max. 254) Mains power monitor Monitors ext. 10 … 32 VDC supply from mains adapter Operating principle Events detected Loss or restart of mains supply, charging...

  • Page 81: Range Of Delivery

    USER MANUAL 13 RANGE OF DELIVERY Following table shows the standard range of delivery depending on type of the different AlphaGUARD radon monitor: D50 / D2000 DF2000 1) AlphaGUARD 2) Transport case 3) Mains-/charging adapter 4) USB cable 5) Dust protection bag (Tyvek) 6) Diffusion adapter 7) Flow through adapter...
  • Page 82 USER MANUAL Figure 65: Range of delivery WWW.BERTIN-INSTRUMENTS.COM...

  • Page 83: Appendix

    USER MANUAL 14 APPENDIX AlphaGUARD models – characteristics and application areas D2000 DF2000 2 to 2 to 2 to Measuring range 50 000 Bq/m³ 2 000 000 Bq/m³ 2 000 000 Bq/m³ Storage capacity 60 000 60 000 60 000 2 x ext.

  • Page 84: Setup Of Bluetooth Connection

    USER MANUAL Setup of Bluetooth connection The Bluetooth interface of the AlphaGUARD can be used to establish a wireless Bluetooth connection to computers with Windows 7 or 10 and DataVIEW PRO installation as an alternative to the cabled connection. For this, a virtual COM interface needs to be adjusted via the following procedure (depending on Windows version): 14.2.1...
  • Page 85 USER MANUAL Click on “ALPHAGUARD AGXXXXXX” and then “OK” (ignore error message “… was not correctly installed”): WWW.BERTIN-INSTRUMENTS.COM...
  • Page 86 USER MANUAL Open “Devices and printers” in the system settings, Right-hand click “ALPHAGUARD AGXXXXXX” and then on “Properties” (ignore the warning symbol): Click on “Hardware”, then on “Standard serial via Bluetooth connection”, then on “Properties” and check the no. of the COM interface (in that case: “COM22): WWW.BERTIN-INSTRUMENTS.COM...
  • Page 87 USER MANUAL Open DataVIEW PRO and choose the COM interface identified under point 5 (in that case: “COM22”) for the data connection. The connection will work like a cabled connection after clicking on “Connect”: WWW.BERTIN-INSTRUMENTS.COM...
  • Page 88 USER MANUAL 14.2.2 Bluetooth communication with Windows 10 Activate the Bluetooth connection of the AlphaGUARD (see also point 7.2.9.9): a. Push the menu button b. Navigate to “Settings menu” and push the enter button Navigate to “Set interface” and push the enter button d.
  • Page 89 USER MANUAL Click on “Bluetooth” and then on “ALPHAGUARD AGXXXXXX” to pair the computer to the AlphaGUARD: WWW.BERTIN-INSTRUMENTS.COM...
  • Page 90 USER MANUAL Click on “Devices and printers”, then on “AlphaGUARD AGXXXXXX”, then on “Properties”: WWW.BERTIN-INSTRUMENTS.COM...
  • Page 91 USER MANUAL Click on “Properties” and check the no. of the COM interface (in that case “COM4”): WWW.BERTIN-INSTRUMENTS.COM...
  • Page 92 USER MANUAL Open DataVIEW PRO and choose the COM interface identified under point 6 (in that case: “COM4”) for the data connection. The connection will work like a cabled connection after clicking on “Connect”: WWW.BERTIN-INSTRUMENTS.COM...

  • Page 93: Flow Diagrams Of Alphaguard Menu

    USER MANUAL Flow diagrams of the AlphaGUARD menu 14.3.1 Acquisition windows WWW.BERTIN-INSTRUMENTS.COM...
  • Page 94 USER MANUAL Graph selection (Acquisition 3) S&L Channel 1 (1 of n) Rn,Tn,… S&L Channel 2 (1 of n) Rn,Tn,… WWW.BERTIN-INSTRUMENTS.COM...
  • Page 95 USER MANUAL 14.3.2 Function menu Short Set marker Setting Marker message S&L 5sec Set location ID Set loaction ID menu S&L Short Long Set operation mode Operation mode select menu S&L Short Long Set pump flow Set pump flow menue (only on versions that support flow modes) S&L Short...
  • Page 96 USER MANUAL Accoustic monitoring Set beeper menu S&L Short Long Configure channel 1 Configuration analog in 1 S&L Short Long Configure channel 2 Configuration analog in 2 S&L Short Long Settings menu Settings sub menu S&L Short Long Set marker start year = actual year Marker message window 3 sec...
  • Page 97 USER MANUAL Set location ID Long Short start setting = actual setting 0 … 31 ID was updated Set operation mode Long Short start setting = actual setting Selector (1 of 6) rollover Number varies on device type mode was updated WWW.BERTIN-INSTRUMENTS.COM...
  • Page 98 USER MANUAL Set pump flow Long Short start setting = actual setting 2.00 … 0.05 l/min flow was updated Lock device Long Short Enter Keycode Device locked message Key wrong message 3sec 3sec WWW.BERTIN-INSTRUMENTS.COM...
  • Page 99 USER MANUAL Return from function menue (key lock set active) Locked device (Acq 1 … 6 or blind Window) 3sec Enter Keycode Key wrong message 30sec No Entry Authorisation failed Unlocked device (Acq 1 … 6 window) To reset keycode press UP and MENU keys while switching the device on WWW.BERTIN-INSTRUMENTS.COM...
  • Page 100 USER MANUAL Configure Channel 1 (2) Long Short (0 … 3) Long Long Short Short 0 Volt value (4 digit + deci. point + sign) Long Long Short Short 2.5 Volt value (4 digit + deci. point + sign) Long Long Short Short...
  • Page 101 USER MANUAL 14.3.3 Settings menu Short Short Set date & time Set date & time menu S&L Long Short Long Short Set time zone Set time zone menue Long Short Long Short Hide display content Set hide display content menu Long Short Long...
  • Page 102 USER MANUAL Next window Short Set interface Set interface menu Long Short Long Short Set RS232 baudrate Select baudrate menu Long Short Long Short Clear Memory Clear memory menu Long Short Long Short Version & Serial number Version and serial number display Long Short Long...
  • Page 103 USER MANUAL Set date & time start date = actual date Discard Long Short 6 sec Discard Short start date = actual date Date invalid message (1…31) Long (date Invalid) Save Long (date OK) Short Discard Long Discard Short month (1 …...
  • Page 104 USER MANUAL Set time zone Start zone = actual zone Discard Long Discard Short hour (-12…+14) Save Long Short Discard Long Discard Short minutes (0 … 45) Save Long Short Discard Long Discard Short DST enable (YES, NO) Save Long Short Hide display content Long...
  • Page 105 USER MANUAL Set keycode Long Short Digit 0 (0 … 9) 30sec Long Short Digit 1 (0 … 9) 30sec Long Short Digit 2 (0 … 9) 30sec Long Short Digit 3 (0 … 9) 30sec Use keycode (set or autorize) WWW.BERTIN-INSTRUMENTS.COM...
  • Page 106 USER MANUAL Set alarm level Long Short start setting = actual setting Alarm level (0 … 9999) (10k-4000k) (10k-50k for D50) Contrast was updated Set backlight Long Short start setting = actual setting Selector (1 of 3) Backlight setting Time was updated Set contrast WWW.BERTIN-INSTRUMENTS.COM...
  • Page 107 USER MANUAL Long Short start setting = actual setting Contrast (0 … 100) Contrast was updated Set interface Long Short start setting = actual setting Selector (1 of 3) Interface was selected WWW.BERTIN-INSTRUMENTS.COM...
  • Page 108 USER MANUAL Set baud rate Long Short start setting = actual setting Selector (1 of 7) Baudrate setting was updated Clear memory Long Short start setting = actual setting Selector (1 of 2 YES (long key) Clearing status window WWW.BERTIN-INSTRUMENTS.COM...
  • Page 109 USER MANUAL Show version Long Short Version window 14.3.4 Low Battery voltage Low batterie voltage Switch off warning message External power 60sec supplied switch Back to device off previous menu WWW.BERTIN-INSTRUMENTS.COM...

  • Page 110: Troubleshooting

    USER MANUAL 15 TROUBLESHOOTING When starting the AlphaGUARD, several routines for system check are carried out. If an error is detected, the associated error code is displayed according to following table: Severe Error, device no longer operational Fail to initialize system Internal Hardware Error ! , contact 0x00000001 oscillator (not used at...
  • Page 111 USER MANUAL Humidity/Temperature sensor Humidity sensor init 0x00002000 defective, please contact your local failed Bertin dealer, press enter to continue 0x00004000 Clock battery low Pump module defective, please Internal pump module 0x00010000 contact your local Bertin dealer, press failed to initialize enter to continue Dose rate module not found or Failed to initialize GM...

  • Page 112: Calibration Scheme Of Alphaguard

    USER MANUAL 16 CALIBRATION SCHEME OF ALPHAGUARD The AlphaGUARD is traceable to national activity standards. The following Figure gives an overview of the traceability: PTB (GER) NIST (USA) NPL (GB) one-way use repeated use repeated use Accumulation Accumulation vessel vessel Glass bulb Gamma PE capsule,...
  • Page 113 USER MANUAL WWW.BERTIN-INSTRUMENTS.COM...

This manual is also suitable for:

Alphaguard d2000Alphaguard df2000

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