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OPERATION MANUAL
The M4 and M4EC are compact, general
purpose survey meters capable of detecting
alpha, beta, gamma, and x-rays over 3
selectable ranges. A red count light flashes and
a beep sounds with each event detected.
The Monitor 4EC offers a more linear reading
for gamma and x-rays (above 40 keV).
The MC1K Detects Gamma and xray only
INTERNATIONAL
® ®
®
S.E. International, Inc. P.O. Box 39, 436 Farm Rd. Summertown, TN 38483 USA
1.800.293.5759 | 1.931.964.3561 | Fax: 1.931.964.3564
1
www.seintl.com | radiationinfo@seintl.com
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Related Manuals for S.E. International Radiation Alert Monitor 4
Summary of Contents for S.E. International Radiation Alert Monitor 4
- Page 1 (above 40 keV). The MC1K Detects Gamma and xray only INTERNATIONAL ® ® ® S.E. International, Inc. P.O. Box 39, 436 Farm Rd. Summertown, TN 38483 USA 1.800.293.5759 | 1.931.964.3561 | Fax: 1.931.964.3564 www.seintl.com | radiationinfo@seintl.com...
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Page 2: Table Of Contents
Contents Desription Operation Precautions Making a Measurements Calibration Calibration Service Technical Service Addtional Information For The Newcomer to Radiation Protection Measuring Radiation Brief Overview Possible Household Sources of Radiation Glossary Specifications Monitor 4 & $EC MC1K Limited Warranty Calibration Database Application... -
Page 3: Desription
DESCRIPTION The monitor senses ionizing radiation by means of a GM (Geiger Mueller) tube with a thin mica window. (Note: There is no window on the MC1K). The tube is enclosed inside the instrument. When a ray or particle of ionizing radiation enters or passes through the tube, it is sensed electronically and displayed by a red count light. -
Page 4: Operation
Operation 1. Before turning on your instrument, install a 9 volt alkaline battery. If a battery is already installed, turn the instrument on and switch the range switch to the battery position indicated by the battery icon on the on/off switch. Battery condition will be indicated on the meter. 2. -
Page 5: Calibration Service
3. Position the instrument upright with the back of the instrument facing the source, (refer to Illustration 2 and 3). 4. Adjust the height of the instrument so the radiation symbol on the rear label that marks the center of the tube is centered with the beam. -
Page 6: Technical Service
Should this instrument ever need servicing or calibration, please contact the address below or your local distributor. DO NOT SEND CONTAMINATED INSTRUMENTS FOR REPAIR OR CALIBRATION UNDER ANY CIRCUMSTANCES. S.E. INTERNATIONAL, INC. P. O. Box 39 436 Farm Road Summertown, TN 38483-0039 USA Tel: (931) 964-3561 Fax: (931) 964-3564 radiationinfo@seintl.com... -
Page 7: Possible Household Sources Of Radiation
The radiation from some isotopes can cause a Geiger tube to overexcite and cause an indication of a higher level of radiation than is actually there. Americium 241 is an example of this phenomenon. Americium 241 is used in some smoke detectors and many different types of industrial density and flow meters. Unless you know exactly what you are measuring and understand the limitations of detection instruments, it is possible to draw misleading conclusions from your readings. - Page 8 ultraviolet light. Gamma rays are emitted from the nucleus of an atom. These high energy photons are much more penetrating than alpha and beta particles. ION: An atomic particle, atom, or molecule that has acquired an electrical charge, either positive or negative, by gaining or losing electrons.
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Page 9: Specifications
SPECIFICATIONS MONITOR 4 and 4EC Detector for the MONITOR 4 and the MONITOR 4EC: MONITOR 4- Halogen-quenched uncompensated GM tube Thin mica window is 1.5-2.0 mg/cm2 thick. Approx. 1000 CPM/mR/hr for Cesium 137. MONITOR 4EC- Halogen-quenched GM tube. Energy compensated sidewall with 2 mm tin filter. Thin mica window, 1.5- 2.0 mg/cm2 thick. -
Page 10: Mc1K
MC1K Detector for the MC1K: Energy compensated halogen-quenched GM tube no window. MC1K Energy Sensitivity: Detects gamma and x-rays down to 40 keV. Response is flat from 40 keV up. Normal background, avg. 4 CPM (counts per minute) Range Switch for the MC1K: X1, X10, X100, X1000 Operating Range- MC1K: X1 - 0-1 mR/hr or 0-0.01 mSv/hr X10 - 0-10 mR/hr or 0-0.1 mSv/hr X100 - 0-100 mR/hr or 0-1 mSv/hr X1000 - 0-1000 mR/hr or 0-10 mSv/hr... -
Page 11: Limited Warranty
LIMITED WARRANTY ELEMENTS OF WARRANTY: This warranty covers all materials and craftsmanship in this product to be free from defect for a period of one year with only the limitations or exclusion set out below. WARRANTY DURATION: This warranty shall terminate and be of no further effect one year after the original date of purchase of the product or at the time the product is: a) damaged or not maintained as is reasonable or necessary, b) modified, c) repaired by someone other than the warrantor for the defect or malfunction covered by this Warranty, d)used in a manner or purpose for which the instrument was not intended or... -
Page 12: Calibration Database Application
Please fill out this form and send it back to us if you would like to be notified of the NIST calibration renewal for your instrument to: S.E. International, Inc. P.O. Box 39, 436 Farm Rd. Summertown, TN 38483 1.800.293.5759 | 1 931.964.3561 | Fax: 1.931.964.3564 www.seintl.com | radiationinfo@seintl.com...
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