Overview and Specifications
9 Spectral Products
1.
Product Overview and Specifications
The AD111 is a convenient computer controlled photomultiplier detection system for use with Spectral
Products’ Digikrom line of monochromators. It features a detector housing that has a dynode divider chain
and direct anode connection, mounts directly to exit-slit ports of Digikrom monochromators, and
accommodates side-on photomultiplier tubes. (PMT’s must be ordered separately.) It also features the
Photomultiplier Amplifier Controller, a compact electronic unit containing the preamplifier and high
voltage power supply for the PMT. Coaxial cables for the high voltage and PMT output current signals
connect the detector housing and the amplifier unit. The entire operation, including wavelength and
bandpass selection, is controlled with a customer-supplied PC. (The Digikrom monochromator uses one
serial port and the AD111 uses one USB port.) An easy to use program is also included that allows full
control of both PMT and monochromator. It graphically displays wavelength versus intensity, intensity
versus time, and allows ASCII data storage for importing to other user interfaces as desired.
Spectral
Products
2659 Pan American Fwy, Suite A, NE Albuquerque, NM 87107 Ph. (505) 343-9700 Fax (505) 343-9705
4
Wavelength Range:
per PMT detector
High Voltage Range:
0-1000 VDC
A/D Resolution:
16 bit (Successive
Approximation)
Response Rate:
USB 2.0
High Voltage Resolution:
244 mV
Data Resolution:
76.3
μ
V, (data range = 0-5V)
Time Constant per step:
Selectable from 1
μ
s to 10 ms
Conversion time:
2
μ
s (maximum)
USB 2.0 Transfer Rate:
480 Mbits/sec
Amplification Gains:
x1 to x10 (programmable)
Supply Voltage:
100-240 VAC
Current Input Range:
0 to -5
μ
amps