All-in-one System by Automess
Microprocessor controlled dose rate meter with telescope measures gamma radiation and detects beta radiation.
Features
- Measuring quantity of Teletector 6112M: Photon Dose Equivalent Rate Hx.
- Safety by distance: telescope extendible up to 4 m total length.
- Wide dose rate range from 0.1 μSv/h to 10 Sv/h, adjustable time constants.
- Simultaneous measurement of dose rate, dose, dose rate mean value, standard deviation of the mean value, dose rate maximum value.
- Freely programmable dose rate and dose alarm threshold.
- Automatic range switching.
- Illuminated fully graphic LCD for analog and digital display of the measured \ value.
- Storage of up to 450 measurements including location, dose rate, time, duration and standard deviation of measurement.
- Serial transfer of current measurement and stored measurements to a PC. Easy processing of these data with standard Windows Software.
The Teletector 6112M is a portable battery operated dose rate meter to measure photon radiation (gamma and X-radiation), and to detect beta radiation. Two GM counter tubes serve as detectors. The stainless steel telescope can extend up to four meters and its tip carries the two tubes. The tubes are placed along the axis one behind the other; a groove marks the center of each tube. The low End tube detects beta radiation and together with the high end tube the Teletector covers a dose range from 10 µR/h to 1000 R/h (0.1 µSv/h to 10 Sv/h), where it automatically switches between the two tubes. The Teletector 6112M simultaneously measures dose rate, dose, dose rate mean value, standard deviation of mean value, and dose rate maximum value. A fully graphic liquid crystal display shows all the information. Four keys allow the user to select functions from a menu, where the display always describes the current function of all keys. Three preprogrammed languages are available (English, French and German). Along with the current function, the display always shows some important parameters in a status line: battery condition, detector in use (low or high range), date, time and whether alarm thresholds have been exceeded. The loudspeaker allows single pulse detection. In case of contamination, the speaker may easily be replaced without having to open the instrument. A non-volatile memory stores all settings when switching the Teletector off or when replacing the batteries. The real time clock keeps date and time. The Teletector 6112M has three operation modes the user can select:
6612M Mode This mode offers the widest scope of functions.
6150AD Mode This mode makes operation very similar to operating an Automess 6150AD5/6 survey rate meter. Only the 6150AD5/6 functions will be available
Fire Brigade Mode In this mode the Teletector only indicates dose rate, other functions are not available. The dose rate alarm threshold is fixed at 2.5 mR/hr (25 µSv/h). This mode is particularly intended for use by fire brigades.
6112M Teletector Specificiations
Low range detector (energy compensated): beta gamma end window tube ZP1400 or equivalent, effective length 40 mm, sensitivity approx. 5800 pulses per μSv
High range detector (energy compensated): gamma tube ZP1300 or equivalent, effective length 8 mm, sensitivity approx. 100 pulses per μSv
Detector selection: automatically with hysteresis:
> 10 mSv/h: goes to high range < 7 mSv/h: returns to low range manual selection of detector for radiological check provided
Measuring quantity: 6112M: Js (R), Hx (Sv), Ka (Gy) 6112M/H: H*(10) (Sv)
Dose rate range: analog:
ZP1400: 0.1 μSv/h to 10 mSv/h ZP1300: 7 mSv/h to 10 Sv/h digital: 0.01 μSv/h to 10 Sv/h
Instrumental background: < 20 nSv/h (low range tube)
Energy range and angular range for photon radiation:6112M:
65 keV to 1.3 MeV (response within ±30% referred to Cs-137) ±45° (respon se within ±20% referred to response in preferential direction of 0° at the same energy)
6112M/H:
45 keV to 1.3 MeV and ±45° (at any energy and direction within these ranges, response is within ±40% referred to response at Cs-137 at 0°)
Detection of beta radiation: through end window tube ZP1400 behind the face of the tube housing (see photo on the front page). The protective cap must be removed. The beta rejection factor of the protective cap is in the order of 100.
Beta Window:
| tube window: | 2 - 3 mg/cm2 |
| protective foil: | 6 mg/cm2 |
| sensitive area | approx. 60 mm2 |
Relative response to beta dose rate H’(0.07, 0°):
| Pm-147 (E ~ 60 keV): | 3.5% |
| Kr-85 (E ~ 240 keV): | 4.4% |
| Sr-90/Y-90 (E ~ 800 keV): | 22% |
Display: fully graphic LCD (128 x 128 pixels) transflective, LED back-light
Range selection: automatically
Overload: dose rates above the full range (10 Sv/h) are indicated as over-range up to dose rates of 100 Sv/h; after overload the Teletector is still functioning
Detection of single pulses: acoustically, speaker may be replaced for decontamination
Speaker level: > 90 dB(A) in a 30 cm distance
Climatic conditions: temperature range: -20°C to +60°C humidity range: 0 to 95% within the specified temperature range; change of response ±6%
Storage temperature: -40°C to +85°C
Atmospheric pressure: nominal range: 60 to 130 kPa (600 to 1300 mbar)
Geotropism: none (no change of response as a result of gravitational effects)
Teletector housing: aluminium die-cast
Telescope: stainless steel
Protection class: IP 67 according to DIN 40050 if telescope completely retracted and protective cap applied
Supply voltage range and power supply: 4.0 to 7.0 Volt four C cells (LR14, AM2)
Battery life: approximately 100 hours with alkaline batteries (without illumination and speaker)
Dimensions: length:
970 mm (telescope retracted) 4170 mm (telescope extended) width 130 mm
max. height approx. 90 mm
Weight: 2.7 kg (without batteries)
3.0 kg (including batteries)
CE compatible according to: EN 50 082-2:1995, EN 55 011:1998, ENV 50 140:1993,
EN 61 000-4-2:1995
Energy Response
