PC direct interface unit NR-500

NR-500 - PC direct interface unit

  • CE Marking
  • CSA





Interface unit

External calibration input signal

Trigger input TRG IN

Voltage input: 10 to 30 VDC, Min. pulse duration: 2 ms, Effective pulse width: 1 ms or more

Synchronization input SYNC IN

Voltage input: 5 VDC ±10%, Min. pulse duration: 20 µs, Effective pulse width: 10 µs or more

Control output

Trigger output TRG OUT

NPN open collector output: 1 ch, Maximum current: 100 mA (30 V or less), Residual voltage: 1 V or less, One-shot output

Withstand voltage

Between I/O and USB/DC IN/system bus

1500 VAC (50/60 Hz) for 1 minute

Between trigger input and output

125 VAC (50/60 Hz) for 1 minute

PC interface


USB Revision 2.0 High-speed–compliant (USB 1.1 compatible),
Simultaneous USB connection from one PC to up to four units (switchable by ID switch)

Continuous collection speed

Max. 100 kHz for all acquisition channels

No. of connectable measurement units

8 units or less (not exceeding 20 W total measurement unit power)

Synchronization between measurement units

±1 µs or less*1

Time axis accuracy

±50 ppm (23°C ±3°C 73.4°F ±5.4°F)

Power supply

NR-U5 AC adapter or USB bus power (NR-TH08, NR-C512, NR-EN16 (no power output): when connecting one unit)


Power consumption

0.9 W or less

Environmental resistance

Ambient temperature

0 to +40°C 32°F to 104°F

Relative humidity

10 to 85% RH (no condensation)


Approx. 110 g 3.88 oz (including OP-51581: NR-500 5-pole terminal block)

*1 When using the NR-CA04 in combination with other unit types, the maximum sampling period is 40 ms or 1 sampling cycle, depending on the setting.

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