NUCLEONIX - Model RC 605A -Radiation Counting System

Radiation Counting System essentially has a processor card and other electronic circuits to generate continuously variable HV upto 1500V to be applied to scintillation detector Probes (alpha, beta, gamma) or End window G.M.Tube, amplify the detector output and convert them to digital pulses for counting and displaying the recorded counts for a preset time.
Microcontroller design facilitates programmability for background, standard and sample counting. The data can be downloaded into PC or printed directly onto a printer.
System facilitates counting of samples either on planchets or filter paper.
This system will find applications for counting of air activity, wipe, environmental, geological and other samples for both beta , gamma and alpha activity. Activity report is generated for unit volume of sample.

• Manufactured confirming to ANSI N 42.17.
• Complies to IS -9000 part III & V, for climatic tests.
• Complies to Interference test as per IEC61000 or equ.
• State of art microcontroller based design.
• 20 x 2 LCD dotmatrix display for counts, elapsed time and HV.
• Counts capacity 999999, preset time 9999 sec.
• Variable HV (0-1500V), 0.5mA
• Built-in parallel port for direct data printing.
• Built-in RS 232C/RS485 serial port for data transfer to PC
• Programmability for lable assignment for a sample
• Facilitates connection to Alpha & Beta probes for sample counting

P.M. Input (From alpha, beta, gamma scintillation detector probe) :
(a) Polarity : Negative
(b) Amplitude : -100 mV (min)
G.M. Input (From G.M.Counter) :
(a) Polarity : Negative
(b) Amplitude : -500 mV (min)
(c) Built-in load resistor : 4.7 or 3.3M Ohms
HV Output : HV (0-1500V) @1mA continuously variable through front panel keypad in steps of 1 volt, ripple less than 20mV, line & load regulation better than 0.05%.
HV indication :
On LCD dotmatrix provided.
Display : 20 x 2 LCD dotmatrix display has been provided to indicate data counts, Elapsed Time and HV.
Counts Capacity : 999999 counts
Preset time : 1min to 24 hrs (HH : MM) format
Preset cycles / Iterations : 1 to 10
Command Buttons: START, STOP, PROG, STORE, INC & DEC command buttons have been provided on the front panel key pad.
Data Communication Software :
(Optional at extra cost) Can be provided for serial transfer of data readings into PC.
PCB Edge Connector : EURO Type.
Inter PCB Connections : Through Mother Board.
Power : Unit is powered through a detachable mains cord. It will draw about 250 mA at 230 volts AC at 50 Hz.

Paralysis Time : A choice of three paralysis times 250, 350 and 550 micro sec plus OFF position selected through PROG key.
Programmability : Includes selection of Preset Time, Storing / Recalling of data, starting and stopping of acquisition, label assignment for data counts BG (Background), ST (Standard) & SP (sample) etc,.
RTC : Built in RTC provides real time clock information which is stamped in the activity report when printed. Built in Real time clock facillitates the user to generate sample analysis reports with RTC stamping. Both date month & time in hrs and minutes are printed.
Scintillation detector probe socket : This is a UHF socket for connecting to a, b or g scintillation Probe.
G.M. Socket : UHF connector for connecting to G.M. Detector.
Printer Port : Built-in centronics port facilitates connection to a printer for direct data printing selectively.
Serial Port : Built-in serial port facilitates data down loading into PC through RS232/RS485 port ( MODBUS COMPLIANT)
Operating Temperature: 0 to 50oC
Relative Humidity : Upto 90%
Compliance : Instrument will meet all requirements applicable
(a) Manufactured confirming to ANSI N 42.17.
(b) Complies to IS -9000 part III & V, for climatic test.
(c) Complies to Interference test as per IEC61000 or equ. .
Mechanical Dimensions :
250mm(W) X135mm(H)X325mm(D) Approx.