• for the extension of the basic unit's measuring range
• for measurements at "hard-to-get-to" places
• for measuring high dose rates from a safe distance

• 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)
• basic unit automatically takes over the probe specific calibration factor
• display of H*(10) for a connected CE-probe and display of H_x for a connected DE-probe
• for all connected PTB-approved H*(10)-probes, additional display of the PTB approval symbol
• pulse or end-window probes for the detection of alpha, beta and gamma contaminations (cps)
• basic unit automatically displays alpha, beta or gamma sensitivity of the connected probe
• immersion counter tube ZP 1083 D for measurements in liquids
• underwater measurements up to a depth of 30 m by using the pressurized water protective housing
• Scintillation Probe 2002 with high sensitivity (cps)
• Contamination Probe ABG-170 with large detector surface (plastic scintillator) for the detection of alpha, beta and gamma contaminations (cps)
• Telescope Probe DE for measuring high dose rates from a safe distance
• "CE"-Telescope to be combined with various probe heads of the GRAETZ probe programme (according to the required mesuring task)
• temperature range for GM-probes: -30 °C up to +60 °C
• temperature range for the Scintillation Probe: -20 °C up to +50 °C (temperature change max. 10 °C/hour)

Type	Energy range	Measuring range	Measuring size	PTB-Approval No.	Dimensions Weight
18509 CE	55 keV - 1,3 MeV	50 µSv/h - 1 Sv/h	H*(10)	23.71/05.01	length 110 mm, diameter 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, diameter 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, diameter 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, diameter 40 mm 150 g

Type	Energy range	Measuring range	Dimensions Weight
18509 DE	48 keV - 2 MeV	100 µSv/h - 1 Sv/h	length 110 mm, diameter 40 mm 150 g
18529 DE	80 keV - 2 MeV	500 µSv/h - 10 Sv/h	length 110 mm, diameter 40 mm 150 g
18545 DE	40 keV - 1,3 MeV	100 nSv/h - 200 µSv/h	length 345 mm, diameter 25/40 mm 380 g
18550 DE	48 keV - 1,3 MeV	5 µSv/h - 20 mSv/h	length 110 mm, diameter 40 mm 150 g

• probes for α-, β- and γ-contaminations
• high sensitive scintillation probe for the detection of β-/γ-radiation
• high sensitive contamination probe for the detection of α-, β- and γ-contaminations
• 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)
• basic unit automatically takes over the probe specific calibration factor
• indication range at the basic unit 0-20 Kcps
• difference between measurement with pulse probes and gamma probes:
  - basic unit measures pulse rates instead of dose rates,
  - summation of counts instead of dose measurement,
  - one pulse respectively pulse rate alarm can be adjusted at the basic unit instead of four dose and dose rate alarm thresholds
• temperature range for GM-probes: -30 °C up to +60 °C
• temperature range for the Scintillation Probe: -20 °C up to +50 °C (temperature change max. 10 °C/hour)

Type	Kind of radiation	Detector	Background counts* (counts/min)	Dimensions Weight
18526 D	α, β, γ	GM-tube effective surface 6,1 cm2	25	length 110 mm, diameter 40 mm 150 g
ZP 1083 D	β, γ	GM-tube effective length 64 mm	15	length 210 mm, diameter 50 mm 350 g

* at 0,1 µSv/h

high sensitivity large detector surface application fields: nuclear medicine, environmental monitoring, security controls (police, customs, border authorities, factory inspectorates) by means of a probe cable connectible to the GRAETZ dose rate meter X 5 C plus and predecessor models X 5 C, X 5 DE and X 50 DE; probe identification as pulse probe by means of a probe cable connectible to the contamination monitor CoMo 170 power supply from the basic unit

Technical Data
Type of radiation:	β, γ
Energy range:	γ: 25 keV - 2 MeV β: > 100 keV
Detector:	(70 x 70 x 13) mm NaJ(TI)-scintillator with photo multiplier
Reference orientation:	vertical onto the square surface
Position of the detector:	middle of the detector cap
Reference point:	middle of the square surface
Background count rate: (at 0,1 µSv/h)	approx. 100 cps
Range of relative humidity:	0 up to 90%, no influence
Range of outside air pressure:	600 up to 1300 hPa, influence negligible
Indication ranges:	0-200 cps 200-2000 cps 2-20 kcps (20 kcps correspond to approx. 13 µSv/h referred to Cs 137)
Temperature range:	operation: -20 °C up to +50 °C storage: -30 °C up to +60 °C (NOTE: max. temperature change 10°C/h)
Overload capacity:	up to approx. 3 mSv/h (referred to Cs 137)
After effect:	after exposure to radiation of 3 mSv/h error after 20 minutes is approx. 5%
Voltage supply:	+5V from the basic unit
Housing:	aluminium, partly anodically oxidized protection class IP 65 (hose-proof)
Dimensions / Weight:	(80 x 85 x 35) mm with 200 mm handle (diameter 33 mm) 530 g

---

Contamination Probe ABG-170

thin-layer plastic scintillation detector with ZnS-coating, integrated photo multiplier and detector electronics high sensitivity detection of α-, β- and γ-contaminations detector surface 170 cm² by using a probe cable connectible as pulse probe to the GRAETZ dose rate meter X 5 C plus display: cps or pulse summation with integration time power supply from the basic unit X 5 C plus acoustic single-pulse indication at the X 5 C plus

Technical Data
Type of radiation:	α, β and γ
Indication range:	0 - 20 Kcps
Background counts:	15 - 25 cps
Active detector surface:	170 cm²
Alarm threshold:	cps and pulse summation
Dimensions:	approx. (390x125x75) mm, handle included
Weight:	approx. 790 g

---

Telescope Probe DE

telescopic probe for measuring high dose rates from a safe distance, dose rate measuring range up to 10 Sv/h available for the measuring sizes: 1) Photon dose equivalent rate Hx alternatively 2) ambient dose equivalent rate H*(10) for measurements at "hard-to-get-to"-places simple adaption to the basic units (X 5 C plus, X 5 C, X 5 DE or X 50 DE) by snap-in technique reliable connection between Telescope Probe DE and basic unit without plug or cable, only by contacts telescope made of stainless steel, smoothly extendable up to 4 m untwistable connection between the head of the detector probe and the electronics for measuring low and high dose rates the Telescope Probe DE is equipped with two different GM-tubes automatic range change indication of the dose rate at the user's location selectable upon keystroke no need of separate batteries for the Telescope Probe DE, voltage supply from the basic unit especially approved for the use at German Fire Brigades

Technical Data
Energy range:	low dose rate 60 keV - 1,3 MeVhigh dose rate 60 keV - 3 MeV
Indication range:	0 nSv/h - 10 Sv/h
Measuring range:	1,5 µSv/h - 10 Sv/h
Dose rate alarm thresholds:	like basic unit
Power supply:	from the basic unit
Temperature range:	operation: -30 °C up to +60 °Cstorage: -40 °C up to +70 °C
German Fire Brigades Approval No.:	DL/FW/GSF 06 89 11
Dimensions:	920 mm / extended: 4000 mm
Weight:	2600 g

 

---

"CE"-Telescope

for measurements at "hard-to-get-to" places for measuring high dose rates from a safe distance according to the required measuring task the user may operate with various probes of the GRAETZ programme untwistable connection between the probe plug connector and the electronics telescope made of stainless steel, smoothly extendable up to 4 m simple and safe adaption to the PTB-approved basic unit X 5 C plus without needing a plug or cable, only via the contacts by snap-in technique (probe and basic unit DO NOT BELONG to the CE-Telescope; please order separately) indication of the dose rate at the user's location, selectable upon keystroke power supply from the basic unit X 5 C plus Weight: approx. 2600 g

Probe Type	Radiation	Energy Range	Measuring Range	Measuring Size	PTB-Approval
18509 CE	γ	55 keV - 1,3 MeV	50 µSv/h - 1 Sv/h	H*(10)	23.71/05.01
18529 CE	γ	70 keV - 3 MeV	0,5 mSv/h - 10 Sv/h	H*(10)	23.71/05.02
18545 CE	γ	40 keV - 1,3 MeV	150 nSv/h - 200 µSv/h	H*(10)	23.71/05.03
18550 CE	γ	40 keV - 1,3 MeV	0 µSv/h - 20 mSv/h	H*(10)	23.71/05.04
18526 D	α, β, γ		0-20 Kcps background: 25 counts/min
X 5 C plus	γ	40 keV - 1,3 MeV	1,0 µSv/h - 20 mSv/s	H*(10)	23.51/04.01