Yokogawa 701251

YOKOGAWA 701251 ANALOG VOLTAGE INPUT MODULE

The Yokogawa 701251 Analog Voltage Input Module is a two input channel, high speed, isolation module designed to provide a high sensitivity range, low noise, and high noise immunity.  

Features and Specifications of the Yokogawa 701251 Analog Voltage Input Module include:

Features:

• High Speed:  1Ms/s
• High Sensitivity Range:  10 mV
• Low Noise:   ±100  Î¼V (typical)
• High noise immunity

Specifications:

• Effective measurement range:  Twice of setting range
• Number of input channels:  2
• Input coupling:  AC, DC, and GND
• Maximum sample rate:  1 MS/s  
• Input format:  Isolated unbalanced
• Frequency characteristics (-3 dB point when a sine wave of amplitude 60% of range is input):  
• 50 mV to 200 V range: DC to 300 kHz
• 20 mV and 10 mV range: DC to 200 kHz
• Voltage-axis range setting:  10 mV to 200 V range (1-2-5 steps)
• Maximum input voltage (at frequency of 1 kHz or less):
• Combined with the 700929 (10:1):  600 V (DC+AC_peak)
• Combined with the 701901+701954  (1:1):  140 V (DC+AC_peak)
• Direct input or cable not complying w/safety standard: 140V  (DC+AC_peak)
• Maximum allowable common mode voltage (at a frequency of 1 kHz or less):
• Working voltage of safety standard  
• Combined with the 700929 (10:1) or combined with the 701901+701954 (1:1):  400 V_rms  (CAT l),  300 V_rms (CAT ll)
• Direct input or cable not complying w/safety standard:  42 V (DC+AC_peak)(CAT l and CAT ll, 30 V_rms)
• Vertical (voltage) axis accuracy DC accuracy:
• 50 mV to 200V range:   ±(0.25% of  range)
• 20 mV range:   ±(0.3% of  range)
• 10 mV range:   ±(0.5% of  range)
• Input connector:  BNC connector (isolated type)
• Input impedance:  1 MΩ ± 1%, approximately 35 pF
• -3 dB point when AC coupled low frequency attenuation point:  10 Hz or less (1 Hz or less when using the 700929)
• Common mode rejection ratio:  80 dB (50/60 Hz) or more (typical)
• Residual noise level (input section shorted): ±100 μ V or   ±0.1% of range, whichever is greater (typical)
• Withstand voltage:  1500 V_rms for 1 minute (across each terminal and earth) (60 Hz)
• Allowable transient surge voltage (instantaneous):   ±2100 V_peak (across each input terminal and earth)
• Insulation resistance:  500 VDC, 10 MΩ or more  (across each input terminal and earth)
• A/D conversion resolution:  16 bit (2400 LSB/range)
• Temperature coefficient:
• Zero point:
• 50 mV to 200 V range:   ±(0.02% of  range)/ ºC(typical)      
• 20 mV range:   ±(0.05% of  range)/ ºC(typical)    
• 10 mV range:   ±(0.10% of  range)/ ºC(typical)
• Gain:  10 mV to 200 V range:   ±(0.02% of  range)/ ºC(typical)
• Bandwidth limit:  
• Select from OFF, 40 kHz, 4 kHz, and 400 Hz
• Cut-off characteristics:  -12 dB/OCT (typical)
• Probe attenuation setting:
• Voltage probe:  1:1, 10:1, 100:1, 1000:1
• Cur probe:  10 A:1 V (for the 700937/701933), 100 A: 1 V (for the 701930/701931)
• Reference junction compensation accuracy (When the input terminal temperature is balanced:
• K, E, J, T, L, U, N:   ±1 C
• R, S, B, W:   ±1.5 C
• Au7Fe:     ±1K
• Bandwidth limit (digital filter):  Select from OFF, 30 Hz, 8 Hz, and 2 Hz
• Input bias current:  20 nA or less