The Hioki MR8905 input module features direct high –voltage input of up to 1000 V DC and 700 V AC without using a differential probe. This is ideal for primary and secondary measurements of UPS power supplies and commercial power supply transformers, for recording the primary and secondary waveforms of inverters, and for measuring high-voltage power supply lines, such as 380 V and 480 V systems used in many countries.
Basic specifications
Accuracy guaranteed: 1 year
Functions | No. of channels: 2, switchable between instantaneous value and AC RMS value |
Input connectors | Banana connector (input impedance 4 MΩ, input capacitance less than 1 pF) |
Measurement range | 500 mV to 50 V/div, 7 ranges, full scale: 20 div |
Low-pass filter | 5/50/500/5 kHz, OFF |
Resolution | 1/1250 of measurement range (using 16-bit A/D converter) |
Highest sampling rate | 500 kS/s (simultaneous sampling across 2 channels) |
Accuracy | ±0.5% f.s. (with 5 Hz filter ON) |
RMS measurement | RMS accuracy: ±1.5% f.s. (30 Hz up to but not including 1 kHz, sine wave input) or ±3% f.s. (1 kHz up to 10 kHz, sine wave input) |
Frequency characteristics | DC to 100 kHz -3 dB |
Input coupling | DC/AC-RMS/GND |
Max. allowable input | 1000 V DC, 700 V AC (the max. voltage that can be applied across input pins without damage) |
Dimensions and mass | 119.5 mm (4.70 in)W × 18.8 mm (0.74 in)H × 151.5mm (5.96 in)D, 185 g (6.5 oz) |
Included accessories | None |
The Hioki MR8905 input module features direct high –voltage input of up to 1000 V DC and 700 V AC without using a differential probe. This is ideal for primary and secondary measurements of UPS power supplies and commercial power supply transformers, for recording the primary and secondary waveforms of inverters, and for measuring high-voltage power supply lines, such as 380 V and 480 V systems used in many countries.
Basic specifications
Accuracy guaranteed: 1 year
Functions | No. of channels: 2, switchable between instantaneous value and AC RMS value |
Input connectors | Banana connector (input impedance 4 MΩ, input capacitance less than 1 pF) |
Measurement range | 500 mV to 50 V/div, 7 ranges, full scale: 20 div |
Low-pass filter | 5/50/500/5 kHz, OFF |
Resolution | 1/1250 of measurement range (using 16-bit A/D converter) |
Highest sampling rate | 500 kS/s (simultaneous sampling across 2 channels) |
Accuracy | ±0.5% f.s. (with 5 Hz filter ON) |
RMS measurement | RMS accuracy: ±1.5% f.s. (30 Hz up to but not including 1 kHz, sine wave input) or ±3% f.s. (1 kHz up to 10 kHz, sine wave input) |
Frequency characteristics | DC to 100 kHz -3 dB |
Input coupling | DC/AC-RMS/GND |
Max. allowable input | 1000 V DC, 700 V AC (the max. voltage that can be applied across input pins without damage) |
Dimensions and mass | 119.5 mm (4.70 in)W × 18.8 mm (0.74 in)H × 151.5mm (5.96 in)D, 185 g (6.5 oz) |
Included accessories | None |
