BNC 970 Portable Multi-Channel Analyzer (MCA) - Manual (Page 4)

Model 970 Instruction Manual 1
Introduction
Thank you for purchasing a Model 970 Portable Multi-Channel Analyzer (MCA). A lot of time and
effort was spent trying to make the Model 970 hardware, software, and this manual, as user-
friendly and error-free as possible, but we cannot guarantee that no mistakes or omissions are
present. All software (and manuals, for that matter) are “works-in-progress,” and will be updated
from time to time. These updates will be posted on our website,
http://www.berkeleynucleonics.com, where the most recent versions can be downloaded. There is
also a link to the Model 970 support website under the Help menu.
If you find any errors or omissions or would like additional features in the instrument, please let us
know.
1.1 Model 970 System Requirements
Pentium-II computer with at least 64 MB of ram and available high-speed serial port (16550
UART or higher), running Windows™ 98 or higher. (An available USB port is also acceptable if
USB-to-RS232 adapter is used.) Monitor with resolution of at least 800 by 600 pixels.
This software has been tested on Windows 98, ME, NT, 2000, XP, and Windows 7.
1.1.1 Model 970 Technical Specification
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Internal 4096 channel successive approximation analog to digital converter.
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Internal positive High Voltage supply, variable from 0 to 2000V. Negative High Voltage
supply is also available.
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Model 970 accepts positive, negative, or pre-shaped (positive) pulses. Pulse heights
should not exceed approximately 5 volts.
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Uses 110VAC or 220VAC to 12V DC adapter (1.25A), or runs on 6 internally recharged
NiMH “AA” batteries. Rechargeable battery life is approximately 4 hours, but will vary
considerably based on the power requirements of the specific detector used. Battery
charging circuitry can be suppressed via a switch in the battery compartment to allow the
use of standard alkaline batteries.
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± 12V DC power for preamplifiers is available through the 7-pin mini DIN connector. This
connector can also provide +5V DC as well as logical outputs controlled by the software’s
alarm functions.