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Fuji Electric NRF31, User Manual

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Fuji Electric NRF31 User Manual Download Page 22

WTA528775    22/33 

No 

Display 

Remarks 

2 

Normal mode 2 

 

 

 

 

 

     

 

 

 

 

   

 

 

 

 
 
 
 
 
 
 
  Hp(10) : gamma-ray 
  Accumulated dose 
 
 
 
 

 
 
 
 
 
  Hp(10) : gamma-ray 

dose rate 

 
 
 
 
 
 
 
 
 

Hp(10) n: neutron 

    Accumulated dose 
 
 
 
 
 
 
 
 
 

Hp(10) n: neutron 
dose rate 

 

 

Mode switch 

Mode switch 

Normal 

mode 1 

3 sec press 

3 sec press 

short-press 

short-press 

short-press 

short-press 

Mode switch 

3 sec press 

Mode switch 

3 sec press 

ｎ

 

ｎ

 

Summary of Contents for NRF31

Page 1: ...WTA528775 1 33 User s Manual Electronic Personal Dosemeter For Gamma X ray and neutron NRF31 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: ...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 supplies 25 8 Specific...

Page 5: ...hreshold 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 NRF31 via communication with th...

Page 6: ...ype code 1 2 3 4 5 6 7 8 9 10 11 12 13 14 N R F 3 1 Y Y Radiation measured 1 Gamma X ray and neutron Transmission 0 Infrared Battery 2 Primary cell Modification number 1 Normal version Indication plat...

Page 7: ...dication OVER is indicated 1 Default of dose and dose late threshold of neutron are set to 9 999Sv and 9 999Sv h respectively If these thresholds are used please reset the threshold properly via setti...

Page 8: ...unctions 4 1 4 1 4 1 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: ...t Sensor position 7 Clip To fix the dosimeter on the pocket or on the band 8 Power on off Jack Switches power On and Off without and with a plug pin After 10 second from insert the plug pin to the dos...

Page 10: ...Accumulation 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 accumulat...

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 turning the power off or communicating with external devices 2 Note In case of pre alarm LED dose not light on blink Accumulated...

Page 13: ...ervals of one second 2 If the mode switch is pressed in 3 second 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 second during preset alarm duration the buzzer and LED are inactivated This Alarm Stop Function can swit...

Page 16: ...in 3 second 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: ...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 battery make sure to turn off the dosimete...

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: ...ray Accumulated dose Hp 10 gamma ray dose rate Hp 10 n neutron Accumulated dose Hp 10 n neutron dose rate Mode switch Mode switch Normal mode 1 3 sec press 3 sec press short press short press short pr...

Page 23: ...ated when the remaining time reaches to zero 4 Low battery display BATT will start blinking if the battery level is low Blink LED is NOT blinking Note If the battery level becomes critically low durin...

Page 24: ...t the dosimeter in the rack or insert and screw the plug pin to turn off 10 second is need to turn off the dosimeter Attention Do not insert the plug pin again to dosimeter in 5 second after pulling o...

Page 25: ...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 Check purpose To pr...

Page 26: ...deg 50 0 deg 60 deg 241 Am or equivalent of 60keV X ray Ref 0 deg 30 0 deg 75 deg 241 Am Be Ref 0 deg Ambient temperature 20 10 to 40 Ref 20 Response time 5 sec or less 5 mSv h to 9 999 Sv h Gamma X r...

Page 27: ...WTA528775 27 33 8 2 Energy response 8 2 1 Gamma X ray 8 2 2 Neutron Relative response X ray energy keV...

Page 28: ...WTA528775 28 33 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...

Page 29: ...WTA528775 29 33 8 4 Angular of incidence 8 4 1 For 137 Cs on phantom 8 4 2 For 241 Am X ray 56 2keV on phantom...

Page 30: ...WTA528775 30 33 8 4 3 For 137 Cs in Free air 8 4 4 For 241 Am Be on phantom...

Page 31: ...WTA528775 31 33 8 5 Ambient temperature...

Page 32: ...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 Troubleshooting Table is to help you l...

Page 33: ...d 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 Check the proper contacts in the...

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