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Counting unit
C8855-01
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.
Features
USB Interface
Sample Software Bundled
Accurate Measurement with No Dead Time
Double Counter Method
Power Supply for Photon Counting Head
Output Voltage and Current: +5 V / 200 mA
Multiple Units (Max. 16) Can be Operated from a Single PC
Specifications
| 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 | |
| Interface | USB | |
| 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) | |
| Weight | 250 g | |
| 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 | |
Notes
*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.
Block diagram
Dimensional outline (Unit mm)
Connection example
- Confirmation
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