C7169 Datasheet, PDF (4/4 Pages) Hamamatsu Corporation – Power Supply for PMT Modules

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Counting Unit C8855
The C8855 is a counting unit with a USB interface and can be used as a photon
counter when combined with a photon counting head, etc.
The counter of the C8855 has two counter circuits (double counter method) capable
of counting input signals with no dead time. The USB interface easily connects to a
notebook PC allowing measurement in an even wider application field. When used
with a photon counting head, the C8855 supplies power (+5 V / 200 mA) necessary to
operate the photon counting head.
Since the C8855 is hot-swap compatible (plug and play compatible), it helps you set
up measurement environment quickly. You can start measurement on the day the
C8855 is delivered by using the sample software that comes with the C8855.
The C8855 cannot be used in simultaneous dual- channel measurements or long-time
measurements with a fast time resolution. In such applications, use the M8784 counting board also available from Hamamatsu.
• Time-resolved measurement (minimum resolution: 50 µs) for monitoring chemiluminescence and biological
clocks
• Quick measurement setups (hot-swap compatible)
When software such as a device driver is installed into your PC beforehand, you can start measurement by just connecting the
USB cable, without restarting the PC.
• Applicable to various measurement methods
The C8855 is fully controlled by DLL (dynamic link library) functions that come with the C8855.
All information on these DLL functions is available to support software programming that handles various types of user
measurement applications.
Parameter
Description / Value
Number of Input Signals
1 ch
Input
Signal Input Level
Signal Pulse Width
TTL positive logic
8 ns or longer
Input Impedance
50 Ω
Counter Method
Double counter method
Counter
Max.Count Rate
50 MHz
Max.Counter Capacity
2³² counts/counter gate
Counter Gate
Counter Gate Mode
Internal Counter Gate Time
Internal counter gate only
50 µs to 10 s (1, 2, 5 step)
Trigger
Trigger Method
External Trigger Signal
Software or external trigger
TTL negative logic
General Output Section
Open collector / 2 bits
Voltage Output
+5 V / 200 mA Max.
Compatible OS
Windows^® 98/98SE/Me/2000
Interface
USB (Ver. 1.1)
Supply Voltage
+5 V / 500 mA Max. (supplied from accessory AC adapter)
Dimensions
(W): 148 mm × (D): 96 mm × (H): 30 mm (excluding rubber feet and projecting parts)
Weight
300 g
Operating Ambient Temperature/Humidity
+5 °C to +45 °C / 80 % or less (no condensation)
AC Adapter
Input
Output
AC 90 V to AC 260 V
7 V / 1.6 A
Supplied: CD-ROM (containing instruction manual, device driver, DLL, sample software, etc.) USB cable, AC adapter, AC cable, power output connector
*: Sample software is configured from Lab VIEW™ of National Instruments, Inc.
: Conforms to the EMC directive (89/336/EEC) and the low voltage directive (73/23/EEC) of the European Union.
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