Fluke 481 Data Sheet
Fluke-481-Radiation-Detection-Meter-Data-Sheet-Brochure Fluke-481-Radiation-Detection-Meter-Data-Sheet-Brochure
2015-09-09
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Fluke 481 Radiation Survey Meter Technical Data The Fluke 481 Radiation Survey Meter is a portable and practical means for identifying irradiated goods, and for helping remediate contamination and safety issues while minimally impacting operations. Use of the device reassures employees that radiation risks are known, monitored and measured for their protection. If radiation is found, a clear and quantifiable result allows managers to comply with federal guidelines, without overreacting with unnecessary steps that might halt operations, impact productivity or lead to lost revenue. Features Include: • Detects skin-dose (beta particle) and deep-dose (gamma) and X-ray radiation • Requires no adjustments; simple two button operation • Delivers quickly read, correct value through autoranging capability • Easily visible inside truck trailers and other low-light conditions with automated backlight • Works reliably indoors or outdoors thanks to sealed case • 30 % more accurate than other available meters • Delivers more than one week of continuous operation from two 9-volt alkaline batteries • Proven in use by state and local governmental emergency response professionals, state inspectors, HAZMAT teams and nuclear power workers • Measures both dose and dose-rate • Useful for contamination-detection, general radiation area surveys, radiation-level monitoring, and hazardous materials assessment • Ruggedized Fluke design Fluke 481 Radiation Survey Meter Detector Ion chamber End users • • • • • • • • Radiation detected beta, x-ray, gamma X-ray manufacturers State inspectors Government agencies Police and fire departments Emergency response and hazmat teams Nuclear medicine labs Hospital radiation safety officers Nuclear power workers Specifications Radiation detected Beta > 100 keV Gamma > 7 keV Operating ranges, response time 0 mR/h to 5 mR/h (8 sec) 0 mR/h to 50 mR/h (2.5 sec) 0 mR/h to 500 mR/h (2 sec) 0 R/h to 5 R/h (2 sec) 0 R/h to 50 R/h (2 sec) Accuracy Within 10 % of readings between 10 % and 100 % of full scale indication on any range, exclusive of energy response Detector Chamber (cc volume air ionization) 349 cc Chamber wall (phenolic) 246 mg/cm2 Chamber window (mylar) 6.6 mg/cm2 Beta slide 440 mg/cm2 Automatic features Auto-zeroing, auto-ranging, and auto-backlight Power requirements Two 9 V alkaline, 200 hours operation Warm-up time One minute Display LCD analog/digital with backlight Analog 100 element bar graph 6.4 cm long. Bar graph is divided into 5 major segments, each labeled with the appropriate value for the range of the instrument Digital 2.5 digit display is followed by a significant zero digit depending on the operating range of the instrument. The units of measurement are indicated on the display at all times. Digits are 6.4 mm (0.25 in) high. Low battery and freeze indicators are also provided on the display Modes Environmental Integrate mode Operates continuously 30 seconds after the instrument has been turned on. Integration is performed even if the instrument is displaying in mR/h or R/h Freeze mode Will place a tick mark on the bar graph display to hold on the peak displayed value. The unit will continue to read and display current radiation values Temperature range -4 °F to 122 °F Relative humidity 0 % to 100 % (at 140 °F) Geotropism <1% Fluke. Keeping your world up and running.® Fluke Corporation PO Box 9090, Everett, WA 98206 U.S.A. Fluke Europe B.V. PO Box 1186, 5602 BD Eindhoven, The Netherlands For more information call: In the U.S.A. (800) 443-5853 or Fax (425) 446-5116 In Europe/M-East/Africa +31 (0) 40 2675 200 or Fax +31 (0) 40 2675 222 In Canada (800)-36-FLUKE or Fax (905) 890-6866 From other countries +1 (425) 446-5500 or Fax +1 (425) 446-5116 Web access: http://www.fluke.com Dimensions (W x D x H) 10 cm x 20 cm x 15 cm (4 in x 8 in x 6 in) ©2011 Fluke Corporation. Specifications subject to change without notice. Printed in U.S.A. 4/2011 4022637A D-EN Weight 1.11 kg (2.5 lb) Modification of this document is not permitted without written permission from Fluke Corporation. 2 Fluke Corporation Fluke 481 Radiation Survey Meter
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