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Hioki 8970 Memory HiCorder Freq unit

Hioki 8970 Memory HiCorder Freq unit

Price on request



Frequency, Rotation, and Pulse Measurement

Key Features

• Fluctuating of power line frequency measurement for commercial power (direct input up to 200 V class line)

• Pulse counting for the encoder

• For the motor rotation, pules integration, duty ratio, and pulse width measurement

• Isolated input, up to 300 V AC/DC from the earth


Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)

Measurement functions Number of channels: 2, for voltage input based frequency measurement, rotation, power frequency, integration, pulse duty ratio, pulse width
Input connectors Isolated BNC connector (input impedance 1 MΩ, input capacitance 30 pF),
Max. rated voltage to earth: 300 V AC, DC (with input isolated from the unit, the maximum voltage that can be applied between input channel and chassis and between input channels without damage)
Frequency mode Range: Between DC to 100kHz (minimum pulse width 2μs), 1Hz/div to 5kHz/div (full scale= 20 div), 8 settings
Accuracy: ±0.1% f.s. (exclude 5kHz/div), ±0.7% f.s. (at 5kHz/div)
Rotation mode Range: Between 0 to 2 million rotations/minute (minimum pulse width 2μs), 100 (r/min)/div to 100k (r/min)/div (full scale= 20 div), 7 settings
Accuracy: ±0.1% f.s. (excluding 100k (r/min)/div), ±0.7% f.s. (at 100k (r/min)/div)
Power frequency mode Range: 50Hz (40 – 60Hz), 60Hz (50 – 70Hz), 400Hz (390 – 410Hz) (full scale= 20 div), 3 settings
Accuracy: ±0.03Hz (exclude 400Hz range), ±0.1Hz (400Hz range)
Integration mode Range: 2k counts/div to 1M counts/div, 6 settings
Accuracy: ±range/2000
Duty ratio mode Range: Between 10Hz to 100kHz (minimum pulse width 2μs), 5%/div (full scale=20 div)
Accuracy: ±1% (10Hz to 10kHz), ±4% (10kHz to 100kHz)
Pulse width mode Range: Between 2μs to 2sec, 500μs/div to 100ms/dv (full scale=20 div)
Accuracy: ±0.1% f.s.
Measurement resolution 1/2000 of range (Integration mode), 1/500 of range (exclude integration, power frequency mode), 1/100 of range (power frequency mode)
Input voltage range and threshold level ±10V to ±400V, 6 settings, selectable threshold level at each range
Other functions Slope, Level, Hold, Smoothing, Low-pass filter, Switchable DC/AC input coupling, Frequency dividing, Integration over-range keep/return
Dimensions and mass 106 mm (4.17 in) W × 19.8 mm (0.78 in) H × 196.5 mm (7.74 in) D, 250 g (8.8 oz)
Accessories None

Additional information




Switching and Data Aquisition

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