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Table of Contents
Related Manuals for Johnson Matthey TRACERCO T401
Summary of Contents for Johnson Matthey TRACERCO T401
- Page 1 TRACERCO T401 Contamination Monitor USER MANUAL...
- Page 2 User to satisfy itself of the suitability of the Product for its own particular purpose. Johnson Matthey plc (JM) accepts no liability for loss or damage (other than that arising from death or personal injury caused by JM’s negligence or by a defective Product, if proved) resulting...
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Page 3: Table Of Contents
Table of Contents General Description ............................ 5 Operational Safety ............................6 Post Delivery Checks ..........................7 Operational Features ..........................8 Switch On............................8 Speaker ............................... 8 Backlight ............................. 8 Low Battery ............................8 Pre-Set Alarm ............................. 8 Detector Probe ............................ 9 Calibration ............................ - Page 4 Repair and Calibration ........................19 7.3.1 Calibration Plaques ........................19 Technical Specification ..........................20 Monitor Response ............................ 21 Affects of Gamma Radiation ......................21 10 Hints for Radiation Contamination Monitoring ..................22 11 Health and Safety ............................. 23 11.1 Training ............................. 23 11.2 Battery life ............................
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Page 5: General Description
Chemical, Mining, Nuclear and Oil and Gas Industries. The Tracerco T401 has been designed to address many of these practical issues in providing a monitor which is reliable, versatile, easy to use and capable of operating in adverse environmental conditions. -
Page 6: Operational Safety
Operational Safety The Tracerco T401 Contamination Monitor is a portable battery operated device which has been des igned to ex acting standards to operate reliabl y in adverse environments. Typical battery life is around 100 hours. A ‘LO BATT’ warning appears on screen when the residual capacity reduces to about 4 hours. -
Page 7: Post Delivery Checks
Post Delivery Checks All monitors supplied by Tracerco have been fully inspected, tested and calibrated prior to shipping. The monitor will be fitted with a new battery and available for immediate operation. Each monitor is supplied in a protective overpack for transportation (customers may purchase an alternative, special transport and storage case). -
Page 8: Operational Features
Operational Features Owners should also refer to the Main Menu Structure for Functionality Switch On on / off switch. This switch has a toggle action – press for The monitor is activated by pressing the and press again for In the absence of any significant local radiation sources the meter will register incident background radiation which will vary with geographical location. -
Page 9: Detector Probe
Detector Probe The T401 Contamination Monitor is equipped with a thin window Geiger Muller detector located in a special probe attached to the head of the monitor. The detector has the capability to measure alpha, beta and gamma radiation over a wide range of energies and its delicate, recessed front window is protected by an open mesh steel grille during use. -
Page 10: Measurement Of Radiation Contamination
Measurement of Radiation Contamination Procedure Switching on the monitor will display all available segments for approximately 2 seconds (as shown below). A check should be performed for any missing segments . For the following 2 seconds, the next ‘Cal Due’ date will show using a MM-YY format. The monitor then enters normal operation (cps mode). -
Page 11: Nuclide Calibration Selection
The Tracerco T401 has been s peciall y developed to provide a dir ect reading of the level of contamination in Bq/cm for a number of radionuclides which the operator can pre -select. -
Page 12: Carry Out A "Nuclide Measurement
Carry Out a “Nuclide Measurement” Following selection of the background count the display moves to the Bq/cm screen. Confirm this choice by pressing the SELECT / RESET button, whereupon the message NUCL will appear on “ ” ‘ ’ the screen. The previously selected radionuclide will also appear at the base of the screen. Scroll back and forth through the various nuclide options using the MODE PEAK... -
Page 13: Nuclide Options
Nuclide Options The Tracerco T401 monitor has been pre-calibrated to measure the list of nuclides given below. These nuclides have been shown to be of general interest for a wide range of environments where contamination monitoring might be required. In the event that the operator requires calibration against a range of alternative isotopes, Tracerco will endeavour to provide the appropriate functionality (subject to the availability of suitable calibration materials). -
Page 14: Operational Ranges
5.10 Operational Ranges Bargraph scale : 0 1000cps. → Num eric scale : 0 4000cps. → 5.10.1 T401 Functional Diagram... -
Page 15: Setting Alarm Trip Levels
5.11 Setting Alarm Trip Levels The Tracerco T401 is equipped with an alarm function which can be set by the operator. The alarm is a continuous high-pitched note and operates whenever the monitor reading exceeds a pre-set trip level. The alarm trip level can be set in either counts / sec or Becquerels / cm mode. -
Page 16: Setting The Alarm Trip Level
5.11.2 Setting the Alarm Trip Level The following flow chart identifies the process for setting an alarm trip level in cps and Bq / cm mode. Sounder Alarm Symbol Continuous Short Flash Long Flash It should be noted that the Bq / cm alarm will only be operative when the monitor is being used with the Bq / cm mode selected on the digital scale. -
Page 17: Detector Probe
Detector Probe The Tracerco T401 utilises a thin window Geiger Muller probe for the detection of alpha, beta and gamma radiation over a wide range of energies. The probe has been designed to provide a high degree of flexibility in the manner in which it can be deployed for contamination monitoring. The following are examples of the key operational options. -
Page 18: Maintenance And Calibration
Maintenance and Calibration The Tracerco T401 is a portable Contamination Monitor which incorporates many design features which are based on Tracerco’s 40-years of global experience in the measurement of radiation in a wide range of industrial and laboratory environments. The monitor has been designed for reliable operation in relatively hostile environments and should provide many years of effective service provided attention is paid to basic operational maintenance. -
Page 19: Repair And Calibration
Repair and Calibration The Tracerco T401 instrument incorporates special software for checking and calibrating the response of the monitor to incident radiation. In order to comply with UK statutory regulations, the monitor must be inspected and tested on at least an annual basis. It is recommended that such inspection and testing is carried out by Tracerco or an approved organisation which has access to the appropriate testing equipment and diagnostic software. -
Page 20: Technical Specification
Technical Specification Radiation detected Alpha/Beta/Gamma Automatic direct translation to Bq/ cm for Cs-137, Am-241, C-14, Cl-36, Pb-210 (wet and dry), Ra-226 (wet and dry), Sr-90, Co-60, P-32, Pu-239, U-238 Detector Single halogen thin window Geiger Muller tube Over-range response Bar graph display will read full scale. Digital numeric display shows 0UEr (over) above 4000CPS Variation with temperature Less than 2%... -
Page 21: Monitor Response
Affects of Gamma Radiation The Tracerco T401 Contamination Monitor primarily responds to highly ionising alpha and beta radiation, although gamma radiation will be detected with a substantially reduced efficiency. A simple check may be carried out to determine whether the observed count rate is arising predominantly from alpha / beta radiation or from gamma radiation. -
Page 22: Hints For Radiation Contamination Monitoring
10 Hints for Radiation Contamination Monitoring Hold detector probe 2mm from the surface being measured. This provides conditions which most closely reflect those used when calibrating the probe. Avoid contaminating the face or head of the probe during operation. ... -
Page 23: Health And Safety
11 Health and Safety Tracerco considers that it has taken all reasonable precautions to ensure that when used as prescribed, the monitor will not endanger the health and safety of the operator. It is important, however, that the following basic guidance should be taken into account by the operator when carrying out any form of radiation contamination monitor ing. - Page 24 For further details please contact: Belasis Hall Technology Park Billingham TS23 4ED Tel: +44 (0) 01642 375171 Email: radiation.monitors@tracerco.com Web: www.tracerco.com/monitors @TracercoMonitor Website: http://www.tracerco.com Local offices http://www.tracerco.com/contact-us General enquires tracerco@tracerco.com...
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Page 25: Revision History
Revision History Author / Checked / Approver / Rev. Description Date Date Date Prev. Original Nicola Porter Tom Partington Thye XM0401 7/3/12 14/3/12 7/3/12 Removed reference to T403 Monitor Donna Chapman Rebecca Charlton Tim Hough Updated Logos 1/3/17 2/3/17 2/3/17 Typing and formatting amendments Removed calibration...
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