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Summary of Contents for Tenmars TM-91N
- Page 1 RADIATION METER TM-91N HB2TM91N0001 TENMARS ELECTRONICS CO., LTD...
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Page 2: Table Of Contents
CONTENTS 1. introduction ..........3 2. Safety Precaution........4 3. Specification ..........6 4. Identifying parts ........7 5. Operation Procedure ......7 6. Battery Replacement ......11 7. NOTICE ..........12 8. Interaction of radiation with matter ..13 9. End of life ..........15 EN-2... -
Page 3: Introduction
TM-91N 1. INTRODUCTION This manual contains valuable information about the nature of ionizing radiation that should be understood by the user so that accurate measurements can be made. Information on the care of your Geiger counter is also included. If the... -
Page 4: Safety Precaution
TM-91N 2. SAFETY PRECAUTION CAUTION Take extremely care for the following conditions while measuring CAUTION Please put the radiation monitor into a plastic zipper bag before operating it in a radiative contaminated area to avoid radiative dust falling on the monitor’s surface... - Page 5 TM-91N Do NOT put the unit in a very hot place(such as a car, glove box, especially during summer). Do NOT allow the unit to get wet. However, if it cannot be avoided, clean it with a towel and allow unit to air-dry for several days(do not place in an oven or microwave).
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Page 6: Specification
TM-91N 3. SPECIFICATI Display : 3 1/2 digits LCD with maximum reading 1999. Sampling : 10 second/ times(<20µSv/h). 1 second/ times(>20µSv/h) unit selection : µSv/h,µRem/h or mRem/h . Measurement Range : 0.50µSv/h~1400µSv/h or 50µRem/h~140.0mRem/h Alarm function : alarm set default 0.50µSv/h,can set 0~19.99µSv/h... -
Page 7: Identifying Parts
TM-91N 4. IDENTIFYING PARTS 1. LCD display. 2. Setup function button. 3. Units and setup function down button. 4. Power ON / OFF button. 5. Unit and setup function up button. 5. OPERATION PROCEDURE Press : All segment of the LCD indicator is illuminated together with BEEP signal for about two second. - Page 8 TM-91N Press : Select test unit µSv/h Press : Select test unit µRem/h. Press r more than 1 second to enter setting alarm mode , the LCD display “ALR” first the press the setting value, press ”or ”...
- Page 9 TM-91N Press more than 1 second to exit and return to measurment mode. The Geiger-mueller tube is located behind the slots in the upper edge of the case. The surface of the tube is very thin .This allows beta radiation to penetrate and to be detected with greater efficiency.
- Page 10 TM-91N they are exposed to the object(see Figure (Figure 1) If the unit shows a significantly higher reading with increasing beep sound volume in this position, you can be certain that the object is emitting Beta radiation. Now position the unit as shown in Figure 2.
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Page 11: Battery Replacement
TM-91N (Figure 2) This is the position in which to hold the geiger counter to take readings. 6. BATTERY REPLACEMENT WARNING If the symbol ” ” appears on the LCD, please replace the battery immediately Use “－” form screwdriver to insert into battery cover hole (OPEN). -
Page 12: Notice
TM-91N (Figure 3) 7. NOTICE Geiger Counter to be accurate within reasonable standards of acceptance, and includes instructions that, if followed ,will yield accurate measurements. Manufacturer assumes no liability for damages, consequential or otherwise that may arise from the use of the Geiger counter by any person, under any circumstances. -
Page 13: Interaction Of Radiation With Matter
TM-91N 8. INTERACTION OF RADIATION WITH MATTER The particles and photons that result from nuclear decay carry most of the energy released from the original unstable nucleus. The value of this energy is expressed in electron Volts, or eV. The energy of beta and alpha rays is invested in the particles speed. - Page 14 TM-91N the surface. Due to short range, alpha particles are not a serious health hazard unless they are emitted from within the body when their high energy, in close contact with sensitive living tissue their high energy, in close contact with sensitive living tissue, is an extreme hazard.
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Page 15: End Of Life
TM-91N The highly energetic X-ray and gamma rays lose their energy as they penetrate matter. X-rays have an energy of up to about 200,000 eV, compared to gamma radiation which can be as energetic as several million eV. One million e V gamma radiation can penetrate an inch of steel. - Page 16 Solar power meter, Radiation meter, Clamp meter, Multimeter, Phase Rotation test, Digital Insulation teste Our products of high quality are selling well all over the world TENMARS ELECTRONICS CO., LTD 6F, 586, RUI GUANG ROAD, NEIHU, TAIPEI 114, TAIWAN. E-mail: service@tenmars.com http://www.tenmars.com...
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