Key Digital ES381 Manuale Utente

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Start with the bottom counter. Hold it in one hand, and put the next counter on top of the 1st, the same way around. Align the stacking connectors a

2.3.1.3 USB Connections For Stacked Configurations All stacked counters need a USB connection. A standard hub may be useful for multi-channel stacks

The “about” tab lists all the counters that have been found. The list shows the serial number and revision data for each counter. Elan Digital Sys

2.3.1.5 Stacking Do’s And Don’ts • Do power off all counters (remove USB lead) before connecting and disconnecting counters from the stack • Don’t r

2.3.2 Non-Stacked (MIS) Mode It is also possible to use multiple USBcount50s as independent instruments. In this mode, the counters are NOT connec

where “p” is the COM port number and “c” is the assigned channel number. For example, if you want to run 2 counters in MIS mode, use Window’s Device

2.4 Input Control 2.4.1 Input Supply The USBcount50 supports a programmable input supply via the slider control. Supplies from 1.50V to 5.00

2.5 Counter Modes 2.5.1 General In RUN mode, the counter continually display readings (assuming these is an input signal of course). Clicking ONCE

Green means the reading is done. Red means the reading over-flowed i.e. external period too long or external frequency too high. Try a shorter int

2.5.2 Frequency Mode The counter can be put into Frequency mode using the selection button shown below. Note too that clicking on a new period selec

CONTENTS 1 OVERVIEW... 5 2 ABOUT THE USBCOUNT50...

2.5.3 Period Mode Period mode uses an internally generated reference clock to time the period between two edges on the input waveform. It is selecte

Period mode should be used if you have a single pulse or a slow input frequency. In the latter case, by timing the period from edge to edge allows a

2.5.4 Period Mode 3 SOFTWARE INSTALLATION 3.1 Windows 98SE and Windows Me Before plugging in the hardware: Use the supplied install CD and run the

Once the hardware has installed, there is no need to make any settings for the allocated COM port…the software takes care of all this at run time.

3.2 Windows 2K and XP10 Before plugging in the hardware: Use the supplied install CD and run the setup program. This will copy all the required fi

Once the hardware has installed, there is no need to make any settings for the allocated COM port…the software takes care of all this at run time. St

3.3 Troubleshooting • Check that the counter hardware installed properly. Use the device manager as shown above and check that there are no yellow

4 HARDWARE SPECIFICATION All parameters typical @ 20°C unless otherwise stated 4.1 Power Requirements Supply Voltage: 5.0V ±10% from host U

4.4 Performance 4.4.1 Safety Data and Maximum Ratings Important Safety Precautions Always observe these when using the USBcount50 The USBcount50 con

Isolation rating: 300V CAT II, 500V CAT I between BNC ground and USB ground Transient isolation17: BNC ground to USB ground +/-2.5KV 4.4.2 Perfor

4.4.4 Software ... 30 Elan Digital Systems Ltd. 3 U

Elan Digital Systems Ltd. 30 USBcount50 USER’S GUIDE Iss1 4.4.4 Software USBcount50 support: Win98SE/Me/2000/XP Recommended system: Pentium Class

Disclaimer This document has been carefully prepared and checked. No responsibility can be assumed for inaccuracies. Elan reserves the right to mak

1 OVERVIEW The USBcount50 is an isolated digital pulse counter that has the following features: • Single channel pulse counter with BNC input and

2 ABOUT THE USBcount50 2.1 General The USBcount50 has been designed to allow a broad range of input frequencies and pulses to be measured. The inpu

2.2 USBcount50 Architecture The figure below shows a simplified diagram of the USBcount50. CONTROLLER&COUNTERSTACKCONNBNCPSUDATAUSBCONTROLLERU

2.3 Using More Than One USBcount50 2.3.1 Stacked Mode A unique feature of the USBcount50 architecture is that up to 4 devices3 can be stacked to mak

Repeat this for all except the last counter to be stacked. For the last counter in the stack, do the same as above but use the short length connect