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Technical Data

Most Widely used product by Metal Industry in India

Rad Check Meter Type RC 705 ( I & E) manufactured by NUCLEONIX SYSTEMS is primarily designed to measure Radioactive Contamination (RaC) in metals such as steel, brass, Aluminium, castings, other alloys and machined parts. It is an ideal choice for all export houses who are into the above line of products. This Portable Meter uses a sensitive scintillator with PMT as the detector. This meter gives optimum performance and measures very efficiently Low-Level Gamma Radiative Contamination (RaC) in a variety of situations.

RC705 I & E measures contamination in doserate in Siverts / hr (nano/micro), Roentzen / hr (micro),  CPS, CPM. It has built in user presettable alarm facility to declare the product as contaminated. Unit gives audio /visual alarms once it exceeds preset level. It is advised to preset the alarm at least 1.5 times or more than background radiation level, at that place.

Unit can detect less than 0.05µSv/hr in a field of 0.2 µSv/hr during a period of 1 sec (when tested with Cs-137 and Co-60).


  • Ideal choice for checking Radioactive Contamination (RaC) in metal Industries including Steel, Brass, Aluminium, Foundry and engineering industrial products.
  • It is an ideal choice to measure increased natural background (BG) in houses, factories, buildings etc. in a nuclear disaster scenario.
  • Manufactured conforming to & ANSI N42.17A performance specifications for Health Physics instrumentation (portable)
  • Has Four modes of measure- ment CPS,CPM ÁR/hr and nSv/hr.
  • User settable alarm facility.
  • Highly sensitive compared to other similar meters.
  • Probability of detection the alarm condition is more than 99%.
  • System designed to withstand Humidity, Shock / Vibration, Temperature (upto 55°C).
  • Designed to comply EMI/EMC.

Scintillator coupled to a Photo multiplier Tube.
A. Built in detector scintillator size 1” x 1”
B. External detector with scintillator size 1” x 1”.

Acquisition Mode

Measurement Range

CPS: (0-50000) or CPM : (0-5000)
Dose rate: (1-10000) µR/hr or (1-99999) nSv/hr
Range Changeover
Better than +/-15% with Cs-137 (above 100µR/hr )
Better than +/-25% with Cs-137 (upto 100µR/hr)
Over range
This instrument will show over range above the 10000 µR/hr
Alarms Facility
Provision for audio/visual alarms if it exceeds preset level.
Alarm Preset Level
User selectable in all modes.

a. 0.1 µR/hr/1nsv/h in terms of Radiation unit.
b. Interms of minimum measurable RaC, it Can detect 30 KBq of Co60 contamination homogeneously distributed in a Steel sample upto 10 cm away with internal probe arrangement and upto 20 cm with external probe arrangement.

Display Indication
Dot Matrix LCD display for dose rate
Time Constant (TC)
Lo, Med, Hi
Audio Output
Built-in piezo electric buzzer.
Serial Port / Data Communication
Built-in serial port facilitates data down loading into PC.
User Interface

i) Power ON/OFF switch. ii) START, STOP, PROG, PROG, INC, DEC command buttons for setting of parameters and operation of the instrument.

Fault Diagnostics
Low battery and EHT failure indication is provided.
Operable on standard dry cells (1.5V x 5) 7.5 volts DC, Size AA, LR6 Alkaline cells BPL Excell or its equivalent or Rechargeable NiMH (1.2Vx5)6VDC, sizeAA, LR6 or Battery eliminator.
AC adaptor working on 230VAC shall be supplied optionally.
Type test compliance
a) Conforms to ANSI N42.17A performance specifications for Health Physics instrumentation (portable)
b) compliant
106W x 196L x 100Ht in mm (Approx.)
This product is recommened for use in metal industry including Steel, Brass, Aluminium, Foundry and Engineering Industry for Radioactive Contamination (RaC) inspection of their products.
Person Checking for Radioactive Contamination Using
RAD CHECK METER With 1" X 1" NaI External Detector Probe

Radcheck External with Sample

Person Checking for Radioactive Contamination Using
RAD CHECK METER With 1" X 1" NaI Internal Detector

Radcheck Internal with Sample

Plot No.162 A & B, Phase-II, IDA, Cherlapally, Hyderabad-500051 India Phone: +91-7207034546, +91-7331104481, 7331104482, Fax : 040 - 29706486.
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