The C8855-01 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 C8855-01 has two counter circuits (double counter method) capable of counting input signals with no dead time. Since the C8855-01 is hot-swap compatible (plug and play compatible), it helps you set up measurement environment quickly. You can start measurement on the day the C8855-01 is delivered by the sample software.
Double Counter Method
Output Voltage and Current: +5 V / 200 mA
|Parameter||Description / Value|
|Input||Number of input signals||1 ch|
|Signal input level||CMOS positive logic (high level: 2 V min.)|
|Signal pulse width||8 ns or longer|
|Input impedance||50 Ω|
|Counter||Counter method||Double counter method|
|Max. count rate||50 MHz|
|Max. counter capacity||232counts / counter gate|
|Counter gate||Counter gate mode||Internal counter gate only|
|Internal counter gate time (*1)||50 µs to 10 s (1, 2, 5 step)|
|Trigger||Trigger method||Software / External trigger|
|External trigger signal||TTL negative logic|
|ID switch (*2)||0 to F (hexadecimal number)|
|General output section||Open collector / 2 bits|
|Voltage output for photon counting head||+5 V / 200 mA Max.|
|OS||Windows® 8.1/10 Pro|
|Supply voltage||Supplied by USB bus power (*4)
+7 V / 400 mA Max. (supplied from AC adapter)
|Dimensions (W × H × D)||120 mm × 30 mm × 96 mm (Excluding the projection and the cable)|
|Operating ambient temperature / Humidity (*3)||+5 °C to +45 °C / Below 80 %|
|Storage temperature / Humidity (*3)||0 °C to +50 °C / Below 85 %|
|CE marking||Conforms to IEC61326-1 GROUP 1, CLASS B|
|AC adapter||Input||AC 100 V to AC 240 V|
|Output||+7 V / 1.6 A|
*1 The C8855-01 is not suitable for applications requiring time resolution higher than 50 µs.
*2 The ID switch is used to set ID numbers when two or more C8855-01 units are connected to single PC.
*3 No condensation.
*4 When using the general-purpose output section or the constant voltage output for the photon counting head, supply from the supplied AC adapter.
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.
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