CMCA-550
Data Acquisition Module for Mössbauer Spectroscopy
The CMCA-550 module is designed for operation with Personal Computers
running under Windows XP
  • Multichannel scaling (MCS) mode for taking Mössbauer spectra
  • Pulse height analysis mode using an integrated analog-to-digital converter
  • An energy window, set in PHA mode, is available in the MCS[window] mode when acquiring Mössbauer data
  • WISSOFT 2003 software controls up to four CMCA-550 modules, connected to one PC
  • Folding of Mössbauer spectra
  • Evaluation of data from Mössbauer Velocity Calibrator
  • Communication with PC by USB interface and RS-232C interface
  • Power supply separate from PC: Data acquisition is continued when the PC is switched off
  • In case of power failure the acquired data is stroed for more than 4 days
  • Flexible and service-friendly by highly integrated circuit


SPECIFICATIONS
Inputs
5 BNC connectors
Analog Input
Digital Input
 
ADC
COUNT, START, CHA, CE

   

   
Indicators
8 LEDs
DA ON, COUNT, ADC, START, POWER, CHA, CE, USB
  
Operating Modes
PHA, MCS, MCS[window]
   
PHA
Analog-to-Digital Conversion of analog input pulses Peak detection fully digital 1 - 10 V analog input 1024 - 8192 channels (8192 channels with interpolation (oversampling)) Sampling frequency: 48 MHz
  
MCS
Digital input pulses max. 8192 channels per sweep count frequency > 100 MHz max. channel-advance-frequency: approx. 500 kHz
  
Communication Ports
RS-232C port
115.500 baud
USB port
USB 1.1 specifications
Power Requirements

7 - 9 V DC, 400 mA
  
Power Pack
AC-DC converter integrated in mains plug
  
Input
100 - 240 V AC
 

50 - 60 Hz
Output
7.5 V DC 800 mA
 
Physical
Size
135 mm x 100 mm x 53 mm
Weight
500 g