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Dose Rate Meters


X 5 C plus


GammaTwin


X 5 CEx

(for measurements in explosion endangered atmospheres)





Dose Rate Measuring System GRAETZ X 5 Cplus


X5Cplus

PTB-approved dose rate measuring range: 1,0 µSv/h - 20 mSv/h
Dose rate indication range: 0 nSv/h - 20 mSv/h
Dose indication range: 0 nSv - 10 Sv
Energy range: 40 keV - 1,3 MeV
Dose rate alarm thresholds: 4, free programmable, 1 µSv/h - 20 mSv/h
Dose alarm thresholds: 4, free programmable, 1 µSv - 10 Sv
Temperature range: -30°C up to +60°C
Dimensions / Weight: (152 x 82 x 39) mm
approx. 400 g
PTB-Approval No.: 23.51/04.01
German Fire Brigades Approval No.: DL/FW/IdF 080221/1
PDF-file: X5Cplus_en.pdf  (136 KB)



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Dose Rate Meter
GRAETZ GammaTwin


GammaTwin
  • small, handy and easy to operate dose rate meter for the measurement of gamma radiation and X-rays
  • measurand: ambient dose equivalent rate H*(10)
  • detector: energy compensated Geiger-Müller-tube
  • large, digital indication of measured values on LC-display (illuminable)
  • selectable simultaneous or separate indication of dose and dose rate, additionally quasi-analog indication of dose rate (logarithmic bargraph)
  • 4 preset dose rate alarm thresholds
  • 4 preset dose alarm thresholds
  • acoustic single-pulse indication can be switched on; especially for the use in non destructive testing it is possible to reduce the pulse rate of background radiation to 1-2 counts/minute (to be set in a special menu point)
  • automatic and continuous storage of the dose
  • storage of the dose and of set parameters even during battery change
  • continuous test functions and permanent self control (displayed by a function control symbol) guarantee operational safety and suitability for daily use
  • designed for "heavy-duty" use, housing made of aluminium, protection class IP54 (splash proof)
  • menu-driven user navigation
  • power supply by 2 standard batteries type AAA 1,5V
  • supply together with a robust Nylon bag and an earphone for loud work environments

Dose rate indication range: 0 nSv/h - 50 mSv/h
Dose rate measuring range: 0,5 µSv/h - 50 mSv/h
Dose indication range: 0 nSv - 1,0 Sv
Dose indication range: 0,5 µSv - 1,0 Sv
Energy range: 40 keV - 1,3 MeV
Dose rate alarm thresholds: 7,5 µSv/h, 25 µSv/h, 40 µSv/h, 300 µSv/h
Dose alarm thresholds: 200 µSv, 500 µSv, 1000 µSv, 2000 µSv
Temperature range: -20°C up to +60°C
Alarm signal: > 80 dB(A) measured in 30 cm distance
Dimensions / Weight: (26 x 66 x 103) mm
approx. 190 g
PDF-File: GammaTwin_en.pdf  (111 KB)


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Dose Rate Measuring System GRAETZ X 5 CEx



for the use in
Ex-marking explosion-endangered atmospheres Ex-marking
X5CEx with probe
  • PTB-approved dose rate meter for measuring gamma radiation and X-rays
  • measuring size: ambient dose equivalent rate H*(10)
  • detector: energy compensated Geiger-Müller-tube
  • large digital indication of measured values on LC display (illuminable)
  • selectable dose rate or dose indication (with integration time)
  • additional quasi-analog dose rate indication (3,5 decades, logarithmic bar graph)
  • indication of peak and average value of dose rate
  • 4 free programmable dose and dose rate alarm thresholds
  • automatic or manual storage of dose and dose rate values together with date and time
  • evaluation/indication of residual time for staying in the current radiation field with regard to the maximum allowed dose
  • switchable acoustic single-pulse indication
  • menu driven operator guidance for easy operation, partly secured by password
  • storage of set parameters also when device is switched off
  • continuous self testing and monitoring ensures high reliability
  • compact, metallized housing made of high impact-proof plastic (easy to decontaminate), sealed for submersion up to 1 m depth (IP 67)
  • power supply by firmly installed accumulator
  • external probe "18 550 CEx" connectible for measuring at "hard-to-get-to" places
  • automatic probe identification
  • EMC-proof

  • Absolutely necessary accessories:

    • - recharger "461L" for recharging the built-in accumulator
  • Optional accessories:

    • - probe "18 550 CEx" for measurements at "hard-to-get-to" places
    - probe cable "CEx", length: 1,25 m - not extendable
    - leather bag "D" for accommodating the basic unit, the probe and the cable

 
Basic unit X 5 CEx
Probe 18 550 CEx
Dose rate measuring range:
1,0 µSv/h - 20 mSv/h
10 µSv/h - 20 mSv/h
Dose rate indication range:
0 nSv/h - 20 mSv/h
Dose indication range:
0 nSv - 10 Sv
Energy range:
40 keV - 1,3 MeV
75 keV - 1,3 MeV
Dose rate alarm thresholds:
4, free programmable, 0 µSv/h - 20 mSv/h
Dose alarm thresholds:
4, free programmable, 1 µSv - 10 Sv
Temperature range:
-20 °C up to +40 °C
Power supply:
9V-accumulator (firmly installed)
from the basic unit
Dimensions / Weight:
(152 x 82 x 39) mm
approx. 475 g
diameter=40 mm, length=126 mm
approx. 250 g
PTB-Approval No.:
23.51/05.02
none
ATEX-Approval No.:
BVS PP 04.2028 EG
Marking:
Ex   II 2G EEx ib II BT6; I M2 EEx ib I  Ex
PDF-file:
X5CEX_en.pdf  (148 KB)


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