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Bruker Daltonics
Bruker

GRAETZ Doserate Measuring System X 5 C plus

for your personal radiation protection

  • doserate meter for measuring gamma radiation and X-rays
  • measuring size: ambient doserate equivalent H*(10)
  • detector: energy compensated Geiger-Müller-tube
  • large, digital indication of measured values on LC-display (illuminable)
  • selectable doserate or dose indication with integration time
  • additional quasi-analogue indication of doserate (3,5 decades, Iogarithmic bar graph)
  • indication of peak and average doserate value
  • 4 free programmable dose and doserate alarm thresholds
  • automatic or manual storage of measured doserate 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
  • clear menu-driven operator guidance for easy operation, partly secured by password
  • storage of set parameters also when the device is switched off or during battery replacement
  • continuous self-testing and monitoring to ensure high reliability
  • compact metallized housing made of high impact-proof plastic, easy to decontaminate, sealed for submersion up to 1 m depth (IP67)
  • power supply by 9V-energy block 6LR61
  • EMC-screened
  • RS 232 interface
  • basic unit can be combined either directly or by probe cable with various probes (see separate leaflet):
    • for extending the measuring range up to 10 Sv/h
    • for detecting a-, b- and c-radiation
    • for measuring in liquids
    • for measurements at "hard-to-get-to" places
    • Telescope Probe DE for measurements from a safe distance
    • Scintillation Probe 2002 for measuring low doserates
  • use of GRAETZ "CE"-probes, measuring size: ambient doserate equivalent H*(10)
  • use of GRAETZ “D/DE”-probes, measuring size: photon doserate equivalent Hx

Technical Data

Dose indication range

0 nSv/h – 20 mSv/h

PTB-doserate measuring range

1,0 µSv/h – 20 mSv/h

Dose indication range

0 nSv/h – 10 Sv

Energy range

40 keV – 1,3 MeV

Doserate alarm thresholds

4, free programmable, 1µSv/h – 20 mSv/h

Dose alarm thresholds

4, free programmable, 1 µSv/h – 10 Sv

Temperature range

-30 °C up to +60 °C

Dimensions / Weight

(152 x 82 x 39) mm / approx. 400 g

PTB-Approval No.

23.01/04.01

German Fire Brigades Approval No.

DL/FW/IdF 080221/1

GRAETZ probes for the doserate measuring system X 5 C plus

  • gamma probes (PTB-approved) and pulse probes (see overleaf) for extending the measuring range of the basic unit
  • for measurements at "hard-to-get-to" places
  • Telescope Probe DE for measurements from a safe distance at high doserates (see separate leaflet „Telescope Probe DE”)

PTB-approved gamma probes

  • automatic probe identification by the basic unit
  • connectible to the basic unit either directly or by using a probe cable up to a max. length of 100 m (standard length: 1,25 m)
  • the basic unit automatically takes over the probe specific calibration factor
  • the basic unit either displays the measuring size H*(10) or Hx for all doserate probes; in case of connected PTB-approved H*(10)-doserate probes the PTB-symbol additionally appears on the display
  • the basic unit automatically displays the detected type of radiation
  • underwater measurements up to a depth of 30 m by using the pressurized water protective housing

Type

Energy range

Measuring range

Measuring size

PTB-Approval

Dimensions
Weight

18509CE


55 keV - 1,3 MeV

50 µSv/h - 1 Sv/h

H*(10)


23.71/05.01


length 110 mm, Ø 40 mm
150 g

18529 CE

70 keV - 3 MeV

0,5 mSv/h - 10 Sv/h

H*(10)


23.71/05.02


length 110 mm, Ø 40 mm
150 g

18545 CE

40 keV -1,3 MeV

150 nSv/h - 200 µSv/h

H*(10)


23.71/05.03


length 345 mm, Ø 25/40 mm
380 g

18550 CE

40 keV -1,3 MeV

10 µSv/h - 20 mSv/h

H*(10)


23.71/05.04


length 110 mm, Ø 40 mm
150 g

 

 

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GRAETZ probes for the doserate measuring system X 5 C plus

Pulse probes

Type

Type of radiation

Detector

Detector

Background*
(counts/min)

Dimensions
Weight

18526 D

α, β, γ


GM-tube


effective
surface 6,1 cm²

25


length 110 mm, Ø 40 mm
150 g

18536 D

α, β, γ


GM-tube


effective
surface 6,1 cm²

9


length 110 mm, Ø 40 mm
150 g

ZP 1083 D

β, γ


GM-tube


effective
length 64 mm

15


length 210 mm, Ø 50 mm
350 g

18 502 D

α, β, γ


GM-tube


effective
surface 50 cm²

155


(100x140x180) mm
1200 g

2002



β, γ



NaJ(Tl)- scintillator


effective
volume (70x70X13) mm

6000



(80x85x35)mm with handle 200 mm
530 g

  • probes for the detection of α-, β- and γ-contaminations
  • high sensitive scintillation probe for the detection of β-/γ-radiation
  • immersion counter tube ZP 1083 D for measurements in liquids
  • automatic probe identification by the basic unit
  • connectible to the basic unit either directly or by using a probe cable up to a max. length of 100 m (standard length: 1,25 m)
  • the basic unit automatically takes over the probe specific calibration factor
  • the basic unit automatically displays the detected type of radiation
  • indication range on the basic unit 0-20 Kcps
  • difference between gamma and pulse probes: basic unit effects a pulse rate measurement instead of doserate measurement and summation of triggered counts instead of dose measurement
  • instead of the four dose and doserate alarm thresholds, one pulse respectively one pulse rate alarm threshold can be set at the basic unit
  • temperature range of GM-probes: -30 °C up to +60 °C
  • temperature range of the scintillation probe: -20 °C up to +50 °C; max. temperature change 10 °C/h
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