Hioki 8940 F/V UNIT

Handles tasks ranging from pulse input from rotary equipment to current measurement In addition to frequency measurement, this single unit handles integration measurement, pulse duty ratio measurement, voltage measurement, and current measurement

• Simply insert into the HiCORDER for use
• Rapid 10 µs F/V input response
• Also suitable for current waveform measurement
• Suitable applications: Engine or crank rotation, Wheel and transmission gear rotation, Vehicle speed encoder output, Fuel, cooling water flow quantity, Handle angle, Dynamo frequency for generators

Basic Specifications

• Input Number of channels: 2 Voltage input: BNC terminal
• Input isolated from output, inter-channel isolation
• Sensor connector terminal Number of channels: 2 (for current measurement)
• Models that allow unit insertion up to a total of 4 channels: 8835-01, 8841, 8842, 8720
• Models that allow unit insertion up to a total of 6 channels: 8826, serial no. 1999-0338386 or later
• Compatible current sensors 9270, 9271, 9272, 9277, 9278, 9279, 3273, 3273-50
• Frequency range 0.05 Hz to 5 kHz/division, 11 ranges, 5 (r/min) to 500 (r/min)/division, 5 ranges, * When attached to recorder where full-scale (f.s.) = 20 divisions
• 0.1 Hz to 10 kHz/division, 11 ranges, 10 (r/min) to 1 k (r/min)/division, 5 ranges, * When attached to recorder where full-scale (f.s.) = 10 divisions
• P50 Hz (40 to 60 Hz), P60 Hz (50 to 70 Hz)* 9322 DIFFERENTIAL PROBE or 9303 PT is necessary for measuring power-line frequency
• Integration range 5 counts to 500 k counts/division, 11 ranges, * When attached to recorder where full-scale (f.s.) = 20 divisions
• 10 counts to 1 M counts/division, 11 ranges, * When attached to recorder where full-scale (f.s.) = 10 divisions
• Pulse duty ratio measurement range 100% f.s., 1 range
• Measurement range: 10 Hz to 100 kHz
• Current range 5 mA to 100 A/division, 10 ranges, linked to use with type of the clamp-on sensor * When attached to recorder where full-scale (f.s.) = 20 divisions
• 10 mA to 200 A/division, 10 ranges, linked to use with type of the clamp-on sensor * When attached to recorder where full-scale (f.s.) = 10 divisions
• Voltage range 0.5 mV to 2 V/division, 12 ranges, * When attached to recorder where full-scale (f.s.) = 20 divisions
• 1 mV to 5 V/division, 12 ranges, * When attached to recorder where full-scale (f.s.)= 10 divisions
• Max. allowable input: 30 V rms or 60 V DC low-pass filter: 5/500/5 k/100 kHz or OFF
• Measurent resolution 1/80 of range, *When attached to recorder where full-scale(f.s.) = 20 divisions. (1/80 or 1/64 of range during use of clamp sensor 9279) 1/160 fo range, *When attached to recorder where full-scale(f.s.) = 10 divisions. (1/160 or 1/128 of range during use of clamp sensor 9279)
• Max. sampling period 1 µs (voltage, current, integration), 1.125 µs (frequency, pulse duty ratio)
• Other functions Voltage input pull-up: ON (10 k-ohm)/OFF Input coupling: DC, GND, AC (voltage, current), DC (others)
• Max. rated voltage to earth 30 V rms or 60 V DC (upper voltage which when applied to input channel casing or between input channels does not damage them)
• Accessories None * The input cord and conversion cable are optional