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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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