Gamma Radiography survey meter Type RM704 designed, manufactured and supplied by Nucleonix Systems is a state of art micro-controller based unit which serves as a general purpose alarming radiation survey meter for use in medical, agricultural, industrial & other installations where radioactive isotopes are used for a variety of applications.
This unit will be additionally used in measuring radiation levels in Reactor buildings, nuclear installations, Radio-chemical plants, reprocessing plants etc. It measures dose rate in the range of 0-50R/hr/ 0-500mSv/h, in 5 linear ranges. It also measures count rate in the range of 0-99999 CPS.
It has a lot of unique features which includes user interface through a set of four command buttons & the visual indication to the user is on a large analog LCD display. Data visualization is provided on both linear analog scale & direct digital display.
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Features
- Conforms to ANSI N42.17A performance specifications for Health Physics instrumentation (portable) &
 compliant.
- Micro-controller based design.
- Compact, Elegant and light weight.
- Measures gamma dose rate inR/h or Sv/h.
- Dose rate accuracy of +/- 15%with Co-60.
- Overall response within +/- 20% in the energy range of 60 Kev to 1.33 Mev.
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Uses large area custom LCD display for dose rate visualization.
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Preset alarm facility for generation of audio / visual alarms.
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| Specifications |
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Radiation Detected |
X and Gamma rays |
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Detector |
A miniature halogen quenched GM detector or its equivalent with energy compensation |
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Measurement Unit |
CPS / R/h / Sv/h |
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Measurement Range |
Dose Rate : 0mR /h – 50R/h
or
0 µSv /h – 500 mSv/h in 5 linear ranges |
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Count Rate |
0- 99999 CPS in 5 linear ranges.
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Accuracy |
Within +/-15% with Co60 |
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Range Selection |
Manual |
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Over Range |
Senses over range & shows on display. |
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Energy response |
within +/- 20% in the range of 60 Kev to 1.33 Mev |
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Time constant |
Floating time constant of 4 sec / 8 sec. |
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Present Alarm Range |
0-9999 CPS
or
0-999.9 mR/h or 0-9999 µSv /h |
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Audio |
Built-in piezo buzzer for generating audio chirps for radiation events and alarm O/P for preset alarms. |
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User Interface |
FN, RANGE, p &q are the four control buttons provided on the instrument. The above buttons allow the user to program and operate the instruments in appropriate manner for configuration and measurement. |
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Indication (Visual) |
Analog bar scale visualization along with direct digital indication on custom backlit LCD display. |
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Power |
7.5 Volts, DC, size AA, MN1500 LR6 (5 X 1.5 Volts), Alkaline cells. |
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Battery Indication |
Battery low indication is provided on LCD display. |
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Type test compliance |
a) Conforms to ANSI N42.17A performance specifications for Health Physics instrumentation (portable)
b) compliant |
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Dimensions |
106 W X 196L X 100H (mm) |
