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Model 1621M Trainer’s Guide

Model 1621M Trainer’s Guide. General Overview. Model 1621M is a Geiger Meuller based Personal Radiation Detector (PRD) Complies with ANSI 42.32 Used for individual monitoring or Exposure and Exposure Rate Capabable of Storing Accumulated Exposure and Communicating with a PC. Applications.

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Model 1621M Trainer’s Guide

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  1. Model 1621M Trainer’s Guide

  2. General Overview • Model 1621M is a • Geiger Meuller based Personal Radiation Detector (PRD) • Complies with ANSI 42.32 • Used for individual monitoring or Exposure and Exposure Rate • Capabable of Storing Accumulated Exposure and Communicating with a PC

  3. Applications • Emergency Workers / Responders • Nuclear Power • Nuclear Medicine (Radiopharmacy) • Health Physics • Anti-Terrorism, WMD Detection • Event Management • Many Others….

  4. Features of Model 1621M 1 Dose Rate Scale (seven segments) for quick visual 2 Dose Rate Indicator (in DER Mode) 3 % Variation in Dose Rate (in DER Mode) 4 Dose Rate Averaging Time 5 “Light/Set”button 6 “Mode”button 7 Speaker 8 LCD 9 IR Port 10 Center of Detector 11 Battery Compartment

  5. Basic Power-Up • Unscrew Battery Compartment • Insert Battery (+) Side First • Replace Battery Cover • Check Display for Self Test (all Symbols lit) • Wait 1 Minute for Self Test and Calibration • Maximum Sensitivity if Detector is Facing Outward (on belt clip, etc)

  6. Battery Replacement (cont.)

  7. Mode • After Power Up, Unit will Default to Measurement Mode • Current Dose Rate (DER) • Absorbed Dose (DE) • Blind Mode (Display does not indicate radiation details) • Communication Mode (Device is using IR port)

  8. More Modes • Battery (bat) – Device needs a new battery • Alarm – Thresholds are exceeded • Set Mode – Flashing indicators allow user to set various items

  9. Toggle Between Modes

  10. Continuous Monitoring • Unit Continues to Record: • Dose Rate Level (DER) • Accumulated Dose Absorption (DE) • Time Elapsed with Respect to DE EXCEPT while in Data-Transfer Mode (using IR Port)

  11. Memory • 1621M Stores in Memory: • Dose Absorption (DE) • Time Elapsed Relative to DE Measurement • Thresholds for Alarms • History Files on Dose Rates and Absorbed Dose

  12. Safety and Usability Note • If you expect High Dose Rates, include new battery (>0.1mS/Hr) • If going to Temperatures below -20C, Display will not function but alarm and storage of data will continue • Avoid unnecessary shock, humidity, chemical, etc to the unit. • Ship sealed and without battery installed

  13. Manager Utilities • Supervisor May: • Adjust Alarm Thresholds • Reset Absorbed Dose and Related Time Elapsed • Modify Audible Settings (on / off) • Permit or Disable Modes of Operation (DE, DER, Blind, Communication to PC)

  14. Manager Set Up • To Modify Thresholds for Alarm, Supervisor may use Mode and Light Buttons • Hold Light Button for 5 seconds • Cycle to Alarm 1 or 2 (press Light Button) • Cycle to Parameter to Change (units, values, decimal place) using Light button • Change Values using Mode button (press to increment value, hold for faster cycling of value) • Hold Light Button when done

  15. Adjust Using Lower Button

  16. Advanced Set Up • Use IR Communication to: • Enable / Disable modes altogether • Download History to PC • Modify what Functionality User can Access • (Such as Disable Ability for User to Dose Absorption and related Time) • Develop Operational Protocols for User Group

  17. Main User Mode 1 • Dose Rate (DER) Displays the Following: • Measurement in Units (uR/hr, mR/hr, R/hr) • Simple Bar Indication (7 Segments, logarithmic) • Averaging Time of DER Value (in seconds) • Coefficient of DER Variation (as a % value) • Quick Tip: Location of Radiation Source is quickly obtainable by using the DER value and sweeping a subject or area

  18. Enable Search to Screen Cargo, Areas or Personnel

  19. Enable Vibrate Mode for Increased Awareness

  20. Main User Mode 2 • Absorbed Dose of Radiation (DE) • Indicates total absorbed dose since reset • Accumulation Time since reset • Reset Both Values by Holding the Light and Mode Button at the Same Time • In PC Mode, this can be disabled. Also in PC Mode, DE values can be reset. • Quick Tip: Use this mode before an event to track total absorbed dose.

  21. Absorbed Dose Set-Up • Modify the Alarm Thresholds similar to Dose Rate Mode Setup (DER) • Hold Light Button to enter ‘adjust’, cycle values with “Mode” and variables with “Light” • When Complete, Hold “Light” for 5 seconds to exit setup • Threshold 1 is initial Alarm to indicate to user that first threshold is exceeded • Threshold 2 is total allowable absorption • This value is used to calculate remaining allowable stay time

  22. Blind Mode • Used to Monitor Status of Instrument • Indicates Serial Number and Production Date

  23. PC Communication • Used to Set Up Instrument • Save Stored Data • Enable or Disable Local Access to Funtionality • Need: • IR Port on PC • Software that came with unit

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