DIFFERENTIAL PROBE 9322
3 Kinds of Measurements with a Single Probe
The 9322 is a differential probe used to measure high voltage with Hioki Memory HiCorders.
Key Features
- Floating measurement of high-voltage waveforms (DC mode)
- Detection of power supply surge noise (AC mode)
- RMS rectified output (RMS mode)
Main Applications
- Measure potential differences included in common mode voltages, such as IGBT
- Measure commercial power line waveforms, such as on 400V power lines
- Measure high voltage surge noise waveforms
- Measure the RMS value of inverter output, etc.
Model No. (Order Code)
9322 | For the Memory HiCorder series |
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Basic specifications
*1: Discontinued product
Measurement functions | DC mode: Waveform monitor output, DC to 10 MHz ±3 dB AC mode: Detection of power line surge noise, 1 kHz to 10 MHz ±3 dB (Low frequency cut-off frequency 1 kHz ± 300 Hz) RMS mode: Rectified RMS output of DC and AC voltages, DC, 40 Hz to 100 kHz, Response speed: 200 ms or less (400 V AC) |
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Max. allowable input | 2000 V DC, 1000 V AC | |||||
Max. rated voltage to earth | When using the Grabber Clip L9243: 1000 V AC/DC (CAT II) When using alligator clip: 1000 V AC/DC (CAT II), 600 V AC/DC (CAT III) |
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Output | Voltage division ratio: 1/1000, BNC terminal (DC/AC/RMS 3-mode selectable output) | |||||
DC amplitude accuracy | ±1 % f.s. (1000 V DC or less), ±3 % f.s. (2000 V DC or less) (f.s.=2000 V DC) | |||||
RMS amplitude accuracy | ±1 % f.s. (DC, 40 Hz to 1 kHz), ±4 % f.s. (1 kHz to 100 kHz) (f.s.=1000 VAC) | |||||
Input resistance, capacity | H-L: 9 MΩ, approx 10 pF (C at 100 kHz) H-case, L-case: 4.5 MΩ, approx 20 pF (C at 100 kHz) |
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Power supply | +5 V to +12 V, less than 300 mA (DC jack OD 5.5 mm [0.22 in.], ID 2.1 mm [0.08 in.]) - Via AC Adapter 9418-15 - Via MR6000 dedicated Probe Power Unit Z5021 through Power Cord 9248 - Via Logic terminal on Memory HiCorder through Power Cord 9324 (*1) - Via sensor terminal of F/V Unit 8940 (*1) through Power Cord 9325 (*1) - Via DC power output terminal attached to the input unit for the 8855 through Power Cord 9328 (*1) - Via the 8860 series dedicated Probe Power Unit 9687 (*1) through Power Cord 9248 |
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Dimensions and mass | 70 mm (2.76 in)W × 150 mm (5.91 in)H × 25 mm (0.98 in)D, 350 g (12.3 oz), Cord length: Input 46 cm (1.51 ft), Output 1.3 m (4.27 ft) | |||||
Included accessories | Alligator clips ×1 (red/black set), Grabber Clip L9243 ×1 (red/black set), Carrying case C0203 ×1, Instruction manual ×1 |
How to power the 9322 with a Hioki Memory HiCorder (Via MR6000 dedicated Probe Power Unit Z5021)
*3: When a current sensor is connected to the Probe Power Unit Z5021, or the Current Unit 8971, U8977, the number of the 9322 connection including the current sensor is limited (up to a total of 9 including the current sensor).
Main unit | Number of the 9322 connections | |||||
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MR6000 MR6000-01 |
8 (Combined with 9248 cable) (*3) |
How to power the 9322 with a Hioki Memory HiCorder (Via MR8875 DC power output terminal)
Main unit | Number of the 9322 connections | |||||
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MR8875 | Unavailable |
How to power the 9322 with a Hioki Memory HiCorder (Via F/V Unit 8940’s sensor terminal)
*1: Discontinued product
Main unit | Required cord | Number of the 9322 connections | Number of current sensors that can be used simultaneously with the 9322 | |||
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8860 (*1) 8860-50 (*1) 8861 (*1) 8861-50 (*1) |
9325 (*1) | 6 | 8 | |||
8855 (*1) | N/A | N/A | N/A | |||
8841 (*1) 8842 (*1) |
9325 (*1) | 6 | 4 | |||
8835-01 (*1) | 9325 (*1) | 4 | 4 | |||
8835 (*1) | Unavailable | Unavailable | Unavailable | |||
8826 (*1) | 9325 (*1) | 6 | 6 |
How to power the 9322 with a Hioki Memory HiCorder (Via Logic terminal on Memory HiCorder)
*1: Discontinued product
Main unit | Required cable | Number of the 9322 connections | Number of logic probes that can be used simultaneously with the 9322 | |||
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MR6000 MR6000-01 |
N/A | N/A | N/A | |||
MR8740T | N/A | N/A | N/A | |||
MR8740 MR8741 |
9323 (*1) + 9324 (*1) | 4 | 9322 ×4: Unavailable 9322 ×3: Unavailable 9322 ×2: Unavailable 9322 ×1: 2 |
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MR8827 | 9323 (*1) + 9324 (*1) | 4 | 9322 ×4: Unavailable 9322 ×3: Unavailable 9322 ×2: Unavailable 9322 ×1: 2 |
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8847 (*1) MR8847-01 (*1) MR8847-02 (*1) MR8847-03 (*1) MR8847-51 MR8847-52 MR8847-53 |
9323 (*1) + 9324 (*1) | 4 | 9322 ×4: Unavailable 9322 ×3: Unavailable 9322 ×2: Unavailable 9322 ×1: 2 |
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8870-20 (*1) MR8870-20 |
Unavailable | |||||
MR8875 | Unavailable | |||||
MR8880-20 | Unavailable | |||||
8860 (*1) 8860-50 (*1) 8861 (*1) 8861-50 (*1) |
9323 (*1) + 9324 (*1) | 2 | 9322 ×2: Unavailable 9322 ×1: 3 |
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8855 (*1) | 9323 (*1) + 9324 (*1) | 2 | 9322 ×2: Unavailable 9322 ×1: 3 |
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8841 (*1) 8842 (*1) |
9324 (*1) | 1 | Unavailable | |||
8835-01 (*1) | 9324 (*1) | 1 | Unavailable | |||
8835 (*1) | 9324 (*1) | 1 | Unavailable | |||
8826 (*1) | 9324 (*1) | 4 | 9322 ×4: Unavailable 9322 ×3: 4 9322 ×2: 6 9322 ×1: 7 |
How to power the 9322 with a Hioki Memory HiCorder (Via the 8860 [*1] series dedicated Probe Power Unit 9687 [*1])
*1: Discontinued product
*2: The number of 9322 that can be connected varies depending on the combination with the clamp probe connected to the probe power supply unit 9687.
Main unit | Number of the 9322 connections | |||||
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8860 (*1) 8860-50 (*1) 8861 (*1) 8861-50 (*1) |
8 (Combined with 9248 cable) (*2) |
How to power the 9322 with a Hioki Memory HiCorder (Via DC power output terminal attached to the input unit 8950 [*1], 8952 [*1], 8953-10 [*1], 8955 [*1] for the 8855)
*1: Discontinued product
Main unit | Required cable | |||||
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8855 (*1) | 9328 (*1) |
Included accessories (2)


Attaches to the tip of the banana plug cable, Red/Black: 1 each, 185 mm (7.28 in.) length, CAT II 1000 V
Power supply (3)

100 to 240V AC

Power supply to the 9322 through this cord from Memory HiCorder 8855's input units, 15 cm (0.49 ft) length, cannot be used with MR8875

Power supply to the 9322 through this cord from the Probe power unit Z5021/9687, 70 cm (2.30 ft) length
Power supply 2 (2)
Option for the MR6000
Number of the 9322 connections: 8 (Combined with 9248 cable) * When a current sensor is connected to the Probe Power Unit Z5021, or the Current Unit 8971, U8977, the number of the 9322 connection including the current sensor is limited (up to a total of 9 including the current sensor).

Power supply to the 9322 through this cord from the Probe power unit Z5021/9687, 70 cm (2.30 ft) length

Specified upon order of the MR6000, power max. 4 × CT6710 series, or max. 8 × other probes