Ludlum Measurements 4404-16-4 Manual
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Ludlum Measurements 4404-16-4 Manual

Geo-exploration counter
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LUDLUM MODEL 4404-16-4
GEO-EXPLORATION COUNTER
ADDENDUM TO MODEL 4404-16 Manual
April 2018
Serial Number 246666 and Succeeding
Serial Numbers

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Summary of Contents for Ludlum Measurements 4404-16-4

  • Page 1 LUDLUM MODEL 4404-16-4 GEO-EXPLORATION COUNTER ADDENDUM TO MODEL 4404-16 Manual April 2018 Serial Number 246666 and Succeeding Serial Numbers...
  • Page 2 LUDLUM MODEL 4404-16-4 GEO-EXPLORATION COUNTER ADDENDUM TO MODEL 4404-16 Manual April 2018 Serial Number 246666 and Succeeding Serial Numbers LUDLUM MEASUREMENTS, INC. 501 OAK STREET, P.O. BOX 810 SWEETWATER, TEXAS 79556 325-235-5494, FAX: 325-235-4672...
  • Page 4 DESIGNER AND MANUFACTURER LUDLUM MEASUREMENTS, INC. 501 OAK ST. / P.O. BOX 810 Scientific and Industrial SWEETWATER, TEXAS 79556 Instruments Phone: 325-235-5494 800-622-0828 (USA) Fax: 325-235-4672 E-Mail: ludlum@ludlums.com Website: http://www.ludlums.com FEIN 75-1085764 Model 4404-16-4 Addendum to the Model 4404-16 manual June 2011 The Model 4404‐16‐4 operates in the same way as the Model 4404‐16. The difference is that the 4404‐16‐4 has a ...
  • Page 5 RETURN OF GOODS TO MANUFACTURER If equipment needs to be returned to Ludlum Measurements, Inc. for repair or calibration, please send to the address below. All shipments should include documentation containing return shipping address, customer name, telephone number, description of service requested, and all other necessary information.

  • Page 6: Table Of Contents

    Table of Contents INTRODUCTION.........................1 SOFTWARE INSTALLATION ....................3 Computer Specifications ......................4 Connecting a Computer ......................4 Starting Software ........................4 Settings .............................4 General ..........................5 Plateau ..........................6 Scaler Counting .........................7 Rate Meter .........................8 End User License Agreement ....................9 SOFTWARE FEATURES ......................11 Counting..........................12 Charting ..........................
  • Page 7 Table of Contents cont. ROI Configuration ........................ 29 Change Serial Number ......................30 Setup Comments ........................31 KML Generator ........................33 HARDWARE SPECIFICATIONS ................... 34 DESCRIPTION OF CONTROLS AND FUNCTIONS............35 DRAWINGS AND DIAGRAMS ....................36 HARDWARE CALIBRATION ....................49 RS-232 COMMUNICATION ....................

  • Page 8: Introduction

    The Ludlum Model 4404-16 has additional uses. It may be used for radioactive ore prospecting. The settings may be customized for uranium or other radioactive isotopes. It may also be used for general radiation survey for radioactive contamination. Ludlum Measurements, Inc. Page 1 April 2018...
  • Page 9 The enclosure provides both thermal and mechanical cushioning to the detector. Use vibration isolators when mounting the enclosure to a vehicle or other structure. Do not subject the detector to rapid changes in temperature. Ludlum Measurements, Inc. Page 2 April 2018...

  • Page 10: Software Installation

    Before installing any LMI software, read the software license agreement at the end of this section. Insert the Model 4404-16 Geo-Exploration Counter CD (LMI Part # 1370-088) into your CD-ROM drive. If the installation does not start Ludlum Measurements, Inc. Page 3 April 2018...

  • Page 11: Computer Specifications

    “setup.exe” to start installation. After the installation is complete, a group will be created under the Start Menu called “Ludlum Measurements, Inc” with the Model 4404 Geo- Exploration Counter shortcut. The KML Generator can be installed by running the setup.exe from the “KML Generator.”...

  • Page 12: General

    Latitude/Longitude Format: Specify the format of the GPS coordinates saved to data file. The choices are NMEA format and Decimal Degrees. The NMEA format is the default output by the GPS. Ludlum Measurements, Inc. Page 5 April 2018...

  • Page 13: Plateau

    These values can also be changed directly on the HV Plateau screen. Count Time: The count time is in seconds for taking background and source counts. Source Size: The source size is in DPM for calculating the efficiency. Ludlum Measurements, Inc. Page 6 April 2018...

  • Page 14: Scaler Counting

    Scaler Count Time The scaler count time settings determine the default values used for the count times. These values can also be changed directly on the main screen. Ludlum Measurements, Inc. Page 7 April 2018...

  • Page 15: Rate Meter

    An audible alert can also be enabled. When a channel is alarming, its label on the graph legend is highlighted and the background on the count screen becomes red. Ludlum Measurements, Inc. Page 8 April 2018...

  • Page 16: End User License Agreement

    Model 4404-16 Geo-Exploration System Technical Manual Section 2 End User License Agreement Ludlum Measurements, Inc. Page 9 April 2018...
  • Page 17 Model 4404-16 Geo-Exploration System Technical Manual Section 2 Ludlum Measurements, Inc. Page 10 April 2018...

  • Page 18: Software Features

     Keyhole Markup Language (KML) generator converts comma- delimited files into KML files suitable for display in Google Earth, Global Mapper or any other 3D earth browser (geobrowser) that supports the KML encoding. Ludlum Measurements, Inc. Page 11 April 2018...

  • Page 19: Counting

    The Start Counts button displays a window allowing a group of channels to start counting simultaneously. The status of the channel is displayed as a colored indicator next to the count button. Ludlum Measurements, Inc. Page 12 April 2018...

  • Page 20: Charting

    The current GPS coordinates are displayed along with the speed and date/time reported by the GPS receiver. A read out displays the selected channel’s current count along with a minimum and maximum value large Ludlum Measurements, Inc. Page 13 April 2018...
  • Page 21 The displayed value is multiplied by the gain and can be useful in scaling a particular plot to make it more visible on screen. Ludlum Measurements, Inc. Page 14 April 2018...

  • Page 22: Logging Data

    Channel 1 / Channel 2, Channel 1 Alarm, Channel 2 Alarm, Channel 3 Alarm, Channel 4 Alarm, Channel 5 Alarm, Channel 6 Alarm, Channel 7 Alarm, Channel 8 Alarm, Channel 9 Alarm, Channel 10 Alarm, Channel 11 Alarm, Channel 12 Alarm Ludlum Measurements, Inc. Page 15 April 2018...

  • Page 23: Channel Colors

    Parameters” button. The “Print” button will print a list of all parameters. The Calibration Wizard will guide the user through calibrating the various calibration constants for each channel. Only channels that are online are available for parameter changes. Ludlum Measurements, Inc. Page 16 April 2018...

  • Page 24: High Voltage

    All other values must be changed through the Calibration Wizard. The high voltage can only be adjusted for channels that are configured for gross count operation. Ludlum Measurements, Inc. Page 17 April 2018...

  • Page 25: Lower Level Discriminator

    Technical Manual Section 3 Lower Level Discriminator The “Lower Level Discriminator” tab shows the current LLD set point, read back voltage, and actual calibration constant. The LLD is adjustable from 0 to 3300 millivolts. Ludlum Measurements, Inc. Page 18 April 2018...

  • Page 26: Upper Level Discriminator

    Technical Manual Section 3 Upper Level Discriminator The “Upper Level Discriminator” tab shows the current ULD set point, read back voltage, and actual calibration constant. The ULD is adjustable from 0 to 3300 millivolts. Ludlum Measurements, Inc. Page 19 April 2018...

  • Page 27: Efficiency

    Technical Manual Section 3 Efficiency This is the efficiency calculated for the high voltage that was set when the plateau was run. It is not used for any calculations, but for informational purposes only. Ludlum Measurements, Inc. Page 20 April 2018...

  • Page 28: Mode

    When the GM Mode is checked, the slave board is configured for use with GM detectors to eliminate double pulsing and long dead times. When the Window Mode is unchecked, the slave board’s ULD set point is ignored. Ludlum Measurements, Inc. Page 21 April 2018...

  • Page 29: Calibration Wizard

    HV Actual Calibration Constant Click the “Begin” button to start the process of calibrating the HV actual calibration constant. The HV actual calibration constant is calculated automatically by entering the high voltage measured at the detector Ludlum Measurements, Inc. Page 22 April 2018...
  • Page 30 Enter the measured high voltage and click “Next.” This process continues until all online channels are completed. Click “Done” and then click “Next” to go to the HV read back calibration. Ludlum Measurements, Inc. Page 23 April 2018...
  • Page 31 Model 4404-16 Geo-Exploration System Technical Manual Section 3 Ludlum Measurements, Inc. Page 24 April 2018...

  • Page 32: Hv Read Back Calibration Constant

    The HV read back calibration constant is more or less automatic. Simply click on the “Reload” button to read the read back high voltage from the counter. If the returned values are consistent, click “Next.” Ludlum Measurements, Inc. Page 25 April 2018...

  • Page 33: Lld Actual Calibration Constant

    This can be accomplished by entering the number directly or using the up and down buttons to reach the desired value. When complete, click the “Next” button. Ludlum Measurements, Inc. Page 26 April 2018...

  • Page 34: Uld Actual Calibration Constant

    This can be accomplished by entering the number directly or using the up and down buttons to reach the desired value. When complete, click the “Next” button. Ludlum Measurements, Inc. Page 27 April 2018...

  • Page 35: Hv Plateau

    The user will then be prompted to place the source on the remaining detectors in sequence until all detectors have been plateaued. Ludlum Measurements, Inc. Page 28 April 2018...

  • Page 36: Roi Configuration

    Region Of Interest (ROI). A 12 character description can be added to each channel to provide easy identification of the ROI. Ludlum Measurements, Inc. Page 29 April 2018...

  • Page 37: Change Serial Number

    The Model 4404-16 is typically configured with 1 Master and 4 ROI slaves Change Serial Number The software provides for the ability to work with multiple Model 4404-16 counters with have different ROI configurations. Ludlum Measurements, Inc. Page 30 April 2018...

  • Page 38: Setup Comments

    To change an existing comment, select if from the list on the left and change it. Click the Add button to add a new comment. Click the Delete button to delete the currently selected comment. Ludlum Measurements, Inc. Page 31 April 2018...
  • Page 39 Model 4404-16 Geo-Exploration System Technical Manual Section 3 Ludlum Measurements, Inc. Page 32 April 2018...

  • Page 40: Kml Generator

    (1000 cps = 1000 meters) or all polygons can be set to a constant height. It is also possible to scale the height from 1% of full scale to 100%. Ludlum Measurements, Inc. Page 33 April 2018...

  • Page 41: Hardware Specifications

    (H x W x L) Enclosure Weight: 18.1kg (40 lb) Electronics Size: 10.9 x 29.2 x 10.7 cm (4.3 x 11.5 x 4.2 in.) (H x W x Electronics Weight: 1.2 kg (2.7 lb) Ludlum Measurements, Inc. Page 34 April 2018...

  • Page 42: Description Of Controls And Functions

    Note: Port connection and DTR must be high to activate this LED. GN: Indicates gain adjustment for each slave board. Note: At a normal gain setting of “10,” 500 mV on the LLD test point is equal to a 50 mV detector sensitivity. Ludlum Measurements, Inc. Page 35 April 2018...

  • Page 43: Drawings And Diagrams

    HOST -843 BOARD LAYOUT, Drawing 344 × 418 SLAVE BOARD, Drawing 344 × 289 (3 sheets) SLAVE AMP BOARD LAYOUT, Drawing 344 × 290A SUB-SLAVE BOARD, Drawing 344 x 553 (3 sheets) SUB-SLAVE BOARD LAYOUT, Drawing 344 x 554 Ludlum Measurements, Inc. Page 36 April 2018...
  • Page 44 Model 4404-16 Geo-Exploration System Technical Manual Section 6 Ludlum Measurements, Inc. Page 37 April 2018...
  • Page 45 Model 4404-16 Geo-Exploration System Technical Manual Section 6 Ludlum Measurements, Inc. Page 38 April 2018...
  • Page 46 Model 4404-16 Geo-Exploration System Technical Manual Section 6 Ludlum Measurements, Inc. Page 39 April 2018...
  • Page 47 Model 4404-16 Geo-Exploration System Technical Manual Section 6 Ludlum Measurements, Inc. Page 40 April 2018...
  • Page 48 Model 4404-16 Geo-Exploration System Technical Manual Section 6 Ludlum Measurements, Inc. Page 41 April 2018...
  • Page 49 Model 4404-16 Geo-Exploration System Technical Manual Section 6 Ludlum Measurements, Inc. Page 42 April 2018...
  • Page 50 Model 4404-16 Geo-Exploration System Technical Manual Section 6 Ludlum Measurements, Inc. Page 43 April 2018...
  • Page 51 Model 4404-16 Geo-Exploration System Technical Manual Section 6 Ludlum Measurements, Inc. Page 44 April 2018...
  • Page 52 Model 4404-16 Geo-Exploration System Technical Manual Section 6 Ludlum Measurements, Inc. Page 45 April 2018...
  • Page 53 Model 4404-16 Geo-Exploration System Technical Manual Section 6 Ludlum Measurements, Inc. Page 46 April 2018...
  • Page 54 Model 4404-16 Geo-Exploration System Technical Manual Section 6 Ludlum Measurements, Inc. Page 47 April 2018...
  • Page 55 Model 4404-16 Geo-Exploration System Technical Manual Section 6 Ludlum Measurements, Inc. Page 48 April 2018...

  • Page 56: Hardware Calibration

    5% of each reading. 7. Set the LLD for all channels to 100 and set the ULD to 200. Note: this results in a calibration level of 10 mV threshold and 10 mV window. Ludlum Measurements, Inc. Page 49 April 2018...
  • Page 57 -15mV. Adjust the pulser amplitude toward -20 mV and confirm that the reading drops to 0 (less than 10 counts) at -20 mV ±0.5 mV. 12. Repeat steps 7 thru 10 above for all remaining channels. Ludlum Measurements, Inc. Page 50 April 2018...

  • Page 58: Rs-232 Communication

    Byte 11 – Channel 04 Byte 12 – Channel 04 Byte 13 – Channel 05 Byte 14 – Channel 05 Byte 15 – Channel 05 Byte 16 – Channel 06 Byte 17 – Channel 06 Ludlum Measurements, Inc. Page 51 April 2018...
  • Page 59 Bit 0: Slave counting status (0 = counting, 1 = not counting). Bit 1: Overload status. Currently not used. Bit 2: HV out of tolerance by 3% (0 = OK, 1 = OOT). Ludlum Measurements, Inc. Page 52 April 2018...

  • Page 60: Rs-232 Commands

    Reads the Window mode of the specified channel. A “1” is returned if the Window mode is enabled, “0” if disabled. Set Window Mode – SWnx Sets the Window mode of the specified channel. A “1” enables the Window mode, “0” disables the Window mode. Ludlum Measurements, Inc. Page 53 April 2018...
  • Page 61 The return format is “±n.n.” Set High Voltage Readback Cal – SHRCnxxx Sets the high voltage readback calibration constant for the specified channel. The value must be formatted as “±nn.” Do not include the decimal place. Ludlum Measurements, Inc. Page 54 April 2018...
  • Page 62 The value must be formatted as “±nn.” Do not include the decimal place. The range is -99 to +99. After setting any calibration constant, the “SF” command must be sent to save the values into flash. Ludlum Measurements, Inc. Page 55 April 2018...

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