Pulse measurement unit NR-FV04

Model

NR-FV04 ^*1

Type

Pulse measurement unit

Input method

Insulated single-end input, channels insulated from each other, input channels insulated from other units (PC)

Number of channels

4 ch ^*2

Measurement cycle

Maximum sampling cycle: 1 μs (1 MHz) to 60 s

A/D converting system

Successive approximation, simultaneous sampling of all channels

A/D resolution

14 bit

Input frequency band

250 kHz (−3 dB or more)

Low pass filter

PASS, 1.5 kHz, 15 kHz, 50 kHz

Pulse input

Input type

Pulse frequency, pulse count (Single-phase input)

Maximum input voltage

±700 V ^*3

Threshold voltage

+100 V, +50 V, +20 V, +10 V, +5 V, +2.5 V, +1 V, +500 mV, +250 mV, +100 mV, +50 mV, 0 V

Minimum pulse duration

2 μs or more for both ON and OFF

Hysteresis

AUTO, 100 mV, 500 mV, 5 V

Pulse divisions

1 to 64 (Can be set to units of 1 division)

Input coupling

DC rising edge, DC falling edge, AC rising edge, AC falling edge

Digital filter

Pulse frequency: Averaging rate of 1 to 32768 (automatically selected), Pulse count: None

Predictive functions

Predictive calculation, Stop prediction (OFF, ×1.5, ×3, ×5, ×8, ×16)

Sensor power output

Dedicated connectors for OP-88003 (AUX POWER) × 2 when using OP-88003; +12 V, 50 mA or +5 V, 50 mA
NPN open-collector output connectable, sensor power supply not insulated from system bus

Voltage input

Input type

±100 V, ±50 V, ±20 V, ±10 V, ±5 V, ±2 V

Maximum input voltage

±700 V ^*3

Digital filter

Averaging rate: 1 to 128 (automatically selected)

Input coupling

DC, AC

Common mode noise reduction ratio

80 dB or more (at up to 60 Hz DC)

Residual noise level

0.02% of F.S., LPF: 1.5 kHz (200 μs/S, digital filter: ON); 0.05% of F.S., LPF: PASS

Measurement range

Pulse frequency

Measurable range: 0.05 to 16000.00 Hz, Display resolution: 0.01 to 1.00 Hz (selected automatically according to frequency)

Pulse count

Measurable range: 0 to 65,000 counts/sampling cycle, Display resolution: 1 count

±100 V

Measurable range: −110.000 to +110.000 V, Display resolution: 5 mV

±50 V

Measurable range: −55.000 to +55.000 V, Display resolution: 2 mV

±20 V

Measurable range: −22.000 to +22.000 V, Display resolution: 1 mV

±10 V

Measurable range: −11.0000 to +11.0000 V, Display resolution: 0.5 mV

±5 V

Measurable range: −5.5000 to +5.5000 V, Display resolution: 0.2 mV

±2 V

Measurable range: −2.2000 to +2.2000 V, Display resolution: 0.1 mV

Measurement accuracy

Pulse frequency

±0.07% of rdg, ±0.01 Hz (20 Hz to 15 kHz, 20 ms/S, with digital filter ON)

Voltage input

±0.1% of F.S.

Withstand voltage

Input to system bus/earth

2200 VAC (50/60 Hz) for 1 minute

Connector format

Insulated BNC connector

Input impedance

1 MΩ ±1%, approx. 30 pF

Buffer memory

16M data^*4

Warm up time

30 minutes or more

Maximum allowable voltage to ground

[When using OP-35409 1:1 voltage-resistant probe] Measurement terminal, GND terminal: 300 Vrms (CAT II);
[When using OP-84266 1:1 voltage-resistant probe] Measurement terminal, GND terminal: 300 Vrms (CAT II);
[When using OP-88998 10:1 voltage-resistant probe] Measurement terminal: 700 Vrms (CAT II), GND terminal: 300 Vrms (CAT II);
[Direct input] Measurement terminal, GND terminal: 42.4 Vpeak and 30 Vrms, or 60 VDC
^*3

Rating

Power consumption

4 W or less (including OP-88003 sensor power supply)

Environmental resistance

Insulation resistance

500 VDC, 10 MΩ or more

Ambient temperature

0 to +40°C 32°F to 104°F

Relative humidity

10 to 85% RH (no condensation)

Weight

Approx. 270 g 9.53 oz