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WTA528774 1/31

User’s Manual

Electronic Personal Dosimeter
(For Gamma(X)-ray)

NRF30

Fuji Electric Co., Ltd.

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Summary of Contents for NRF30

Page 1: ...WTA528774 1 31 User s Manual Electronic Personal Dosimeter For Gamma X ray NRF30 Fuji Electric Co Ltd...

Page 2: ...s manual carefully before operation In the event of product malfunction contact your Fuji Electric authorized customer service representative In order to ensure prompt service please provide precise d...

Page 3: ...HS 3 High power transceiver or like kind 4 Microwave oven 5 Radar 6 Welding machine 7 Any other spark discharging or high intensity radio wave emitting devices Especially keep the Dosimeter at least 5...

Page 4: ...ment 17 5 2 Attaching and removing a clip 18 6 Operational Instructions 19 6 1 When start to use 19 6 2 During use 21 6 3 After use 24 7 Care and Maintenance 25 7 1 Check procedures 25 7 2 Consumable...

Page 5: ...ld will be audibly alarmed if reached Using the Dosimeter Setting Device and a PC you can write PC edited values to read measurement data trend from the Dosimeter NRF30 via communication with the devi...

Page 6: ...8 9 10 11 12 13 14 N R F 3 1 Y Y Radiation measured 0 Gamma X ray Transmission 0 Infrared Battery 2 Primary cell Modification number 1 Normal version Indication plate 1 Japanese 2 English Measurement...

Page 7: ...rate thresholds by default Alarm 700 mSv h 70000 mrem h Pre Alarm 70 mSv h 7000 mrem h Overload indication OVER is indicated 3 2 Other requirements 1 See User s Manual Dosimeter Setting Device for in...

Page 8: ...Parts and Functions 4 1 Part names 4 Battery cap 9 Communication port 6 Point of Calibration 1 Buzzer 8 Power ON OFF Jack 5 Mode switch 7 Clip 2 LED RED 3 LCD Top view Bottom view Front view Side vie...

Page 9: ...r position 7 Clip To fix the dosimeter on the pocket or on the band 8 Power ON OFF Switches power ON and OFF After 2 seconds from inserting a dosimeter to the dosimeter rack power turns OFF By pulling...

Page 10: ...ulation time mode Operating Time Decreasing time mode Remaining Time Accumulated Dose or Dose Rate Dose Type Accumulated Dose or Dose Rate Unit of Accumulated Dose Or Dose Rate Unit of accumulated Dos...

Page 11: ...dosimeter is turned off No sound Contact to external device The dosimeter is set at the setting device or a rack No sound Data transmission Successful completion of data transmission No sound Setting...

Page 12: ...150 ms for 3 times in one second 1 This repeats until exit operation by communicating with external devices or turning the power off 2 Note In case of pre alarm LED does not light on blink Accumulated...

Page 13: ...rvals of one second 2 If the mode switch is pressed in 3 seconds during preset alarm duration the buzzer and LED are inactivated This Alarm Stop Function can switch ON and OFF using a setting device D...

Page 14: ...ime reaches the preset time In case of the setting is 9 30 The alarm begins with a 1 min long beep followed by a 1 sec mute After that a 1 sec beep and a 1 sec mute are repeated All beeps go on for pr...

Page 15: ...preset alarm duration 2 LED is activated in 1 sec interval 2 If the mode switch is pressed in 3 seconds during preset alarm duration the buzzer and LED are inactivated This Alarm Stop Function can swi...

Page 16: ...in 3 seconds during preset alarm duration the buzzer and LED are inactivated This Alarm Stop Function can switch ON and OFF using a setting device Default setting is ON Attention If you press and hold...

Page 17: ...An O ring is consumables please change the O ring every 2 years or the when of battery replacement recommend The information of the O ring purchase please contact our agency Attention 1 When replacing...

Page 18: ...Pull up a clip as shown fig 2 with pushing the hook arrow pointing toward as shown fig 1 Attaching a clip Attach the circled area of a clip as shown below to the rear side of a dosimeter Make sure to...

Page 19: ...ing the plug pin Indicated dose value 0 Sv 0 0 mrem or 0 Sv h 0 0 mrem h Display of operating time Operating time or remaining time hour min or hour 0 min to 99 hr 59 min 100 hr to 9999 hr 59 min LCD...

Page 20: ...red display mode with this switch Accumulated Dose Sv or rem or Dose Rate Sv h or rem h Display mode may be changed at any time by using the mode switch 3 Clip the dosimeter onto the chest pocket as s...

Page 21: ...witch Mode switch Mode switch Mode switch Normal mode 2 3 sec press short press 5 short press short press short press short press short press Normal mode 2 3 sec press 10 sec inactivity Normal mode 2...

Page 22: ...WTA528774 22 31 No Display Remarks 2 Normal mode 2 Hp 10 Accumulated dose Hp 10 dose rate Mode switch Mode switch Normal mode 1 3 sec press 3 sec press short press short press...

Page 23: ...attery display BATT will start blinking if the battery level is low Blink LED is NOT blinking Note During this alarm activation the beep sound of dose and dose rate alarm will stop After low battery v...

Page 24: ...the dosimeter in the rack or insert and screw the plug pin to turn off 2 seconds is needed to turn off the dosimeter Attention Do not insert the plug pin again to dosimeter in 5 seconds after pulling...

Page 25: ...3 The surface is clean Wipe the dosimeter surface with dry cloth or soft brush Also wipe the communication port When to check After use in environment where dust chemical fumes and etc are present Ch...

Page 26: ...V X ray Ref 0 deg Ambient temperature 20 10 to 40 Ref 20 Response time 5 s or less 5 mSv h to 9 999 Sv h Battery Li ion battery x1 CR123A Battery life 2880 hours new battery normal temperature no alar...

Page 27: ...ergy response 8 3 Dose equivalent rate dependence Open square is experimental data black circle is simulated data using electric pulses Irradiation dose rate mSv h Indication par 6 min mSv Energy keV...

Page 28: ...WTA528774 28 31 8 4 Angular of incidence 8 4 1 For 137 Cs on phantom 8 4 2 For 241 Am X ray 56 2 keV on phantom...

Page 29: ...WTA528774 29 31 8 4 3 Angle of incidence for 137 Cs in Free air 8 5 Ambient temperature...

Page 30: ...Device within 5 cm Also note that these windows are face to face Clean IR communication window with soft cloth When contact our agency please provide precise details of the problem Note This Troublesh...

Page 31: ...rs prematurely 1 Near the end of the battery s life 2 Increase the current consumption 3 The change of the voltage decline detection level by IC malfunction 1 Replace with a new battery See 5 1 2 Chec...

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