# Hioki U8793 Arbitrary Waveform Generator Unit # Hioki U8793 Arbitrary Waveform Generator Unit ## Key Features At A Glance - Plug-in generator units that expand the Memory HiCorder MR8847A with waveform or pulse generation alongside recording - Channel configurations from 2 to 8 channels per unit across the series - Isolated, floating outputs allow connection to devices at different potentials - SMB output terminals with maximum rated voltage to ground of 33 V AC rms or 70 V DC - Built-in self-test function monitors output voltage and current - Complies with EN61010 safety and EN61326 EMC, with 350 V AC dielectric withstand voltage The U8793 Arbitrary Waveform Generator Unit installs in the Memory HiCorder MR8847A to combine generating and recording functions in a single instrument. With the unit installed, the MR8847A provides a function generator mode, an arbitrary waveform generator mode, and a waveform measurement mode together, so an engineer can generate and record at the same time with the same instrument and observe waveforms while varying output conditions such as amplitude and frequency. The combination is applied to automobile and railroad transport-equipment testing, where actual waveforms are used to test control boards for engine control, airbags, brake systems, power steering, and active suspension. Additional listed applications include vibration reproducibility testing using vibration waveforms recorded in the field, power anomaly simulation that recreates supply dips, instantaneous interruptions, and voltage fluctuations for immunity testing, inverter motor performance testing for VVVF control and PWM waveforms, power steering endurance testing, and vehicle sensor inspection — including 14 V DC pulse generation to simulate a car battery. ValueTronics stocks and holds its own inventory in a 20,000-square-foot secure warehouse at 1675 Cambridge Drive in Elgin, Illinois. ## Compare Other Models in This Series The U8793 Arbitrary Waveform Generator Unit, the MR8790 Waveform Generator Unit, and the MR8791 Pulse Generator Unit are plug-in generator units that expand the practical applications of the Memory HiCorder. They are used in various combinations with measurement units so that a single Memory HiCorder can both generate stimulus signals and record results. Each unit shares the same compact form factor of roughly 106 mm wide by 19.8 mm high by 196.5 mm deep, an SMB output terminal, a maximum rated voltage to ground of 33 V AC rms or 70 V DC, and compliance with EN61010 for safety and EN61326 for EMC. They differ in channel count, output type, and the kinds of waveforms each generates. Each new unit below is its own dedicated product page with condition-matched pricing. Select the model that matches your channel count and output requirements, and review that page for its specific new availability and price. The U8793 is the arbitrary-waveform member of the group, adding a function generator mode, an arbitrary waveform generator mode, and a waveform measurement mode to the MR8847A, and generating isolated output of up to 15 V without an external amplifier. The U8793 provides 2 channels per unit with an output frequency range of 0 Hz to 100 kHz, a maximum output voltage of -10 V to 15 V, and full function-generator, arbitrary-waveform, sweep, and program capability. The MR8790 Waveform Generator Unit provides 4 channels per unit producing sine waves up to 20 kHz and DC voltage output with a high-precision DC output accuracy of ±0.6 mV and a maximum output voltage of ±10 V. The MR8791 Pulse Generator Unit provides 8 channels per unit with pulse and pattern output, selectable TTL-level logic output or open-collector output, and a minimum pulse width of 1 µs. Note that the MR8790 Waveform Generator Unit and the MR8791 Pulse Generator Unit do not have phase control or synchronize control modes. The comparison table below summarizes the channel counts, output types, and key output specifications for each unit. Model Output Type Output Channels Max Output Voltage **U8793** Arbitrary / Function Generator 2 ch/unit \-10 V to 15 V MR8790 Sine wave / DC voltage 4 ch/unit ±10 V MR8791 Pulse / Pattern (logic / open collector) 8 ch/unit 0 V to 5 V (logic) Additional differences in specifications beyond the few shown above are not listed here — see each model's full specifications below. ## Product Core & Specifications Specification Value Common specifications Number of output channels 2 channels per unit Output terminal SMB terminal Output type Unbalanced output (floating) Maximum rated voltage to ground 33 V AC rms or 70 V DC (Between each output channel and the main unit, between the channels and external I/O terminals, and between the output channels). Expected transient overvoltage: 330 V Maximum output voltage \-10 V to 15 V Amplitude setting range 0 V to 20 V p-p (setting resolution: 1 mV) DC offset setting range \-10 V to 15 V (setting resolution: 1 mV) Output impedance 1 Ω or less Max. output current ±10 mA (per channel) Allowable load resistance 1.5 kΩ or more Output type Waveform output, open, shorted Self-test function Monitor output voltage values. Monitor resolution: 10 mV. Monitor accuracy: ±3.0% f.s. (F.s.=15 V) Output start/stop Key operation of Memory HiCorder and signals to external control terminal External input When using program functions, use an external low-level signal input to release the hold and move to the next step. Control voltage level: 3.5 V to 5.0 V (HIGH level), 0 V to 0.8 V (LOW level). Response pulse width: 100 μs or more (LOW level) External output Output when waveform is output. Output format: Open drain output (active low, with 5V voltage output). Output voltage level: 4.0 V to 5.0 V (HIGH level), 0 V to 0.5 V (LOW level). Max. On/Off capacity: 5 V to 30 V DC, 50 mA External I/O terminal Push-button terminal block Waveform output display Red LED On when waveform is output, and Off when output is OFF. FG functional specifications Output waveforms Sine wave, square wave, pulse wave (duty ratio variable), triangular wave, ramp wave, DC Output frequency range 0 Hz to 100 kHz (setting resolution: 10 mHz) Output frequency accuracy ± 0.015% of setting DC output accuracy ± 0.05% of setting ± 10 mV DC output temperature characteristics (± 0.005% of setting ± 1 mV)/°C Amplitude accuracy ± 0.5% of setting ± 10 mVp-p (10 mHz to 10 kHz); ± 0.8% of setting ± 10 mVp-p (more than 10 kHz to 50 kHz); ± 1.0% of setting ± 10 mVp-p (more than 50 kHz to 100 kHz) Amplitude temperature characteristics (± 0.05% of setting ± 1 mVp-p)/°C DC offset accuracy ± 0.5% of setting ± 10 mV DC offset temperature characteristics (± 0.05% of setting ± 1 mV)/°C Phase difference setting range \-360° to 360° (setting resolution: 0.1°) Jitter Within 50 ns p-p (square wave, pulse wave, triangular wave, ramp wave) Pulse wave duty setting range 0.1% to 99.9% (setting resolution: 0.1%). Enabled for a pulse width of 500 ns or more Pulse wave duty accuracy Period ±0.1% (10 mHz to 5 kHz); Period ±0.5% (more than 5 kHz to 20 kHz); Period ±1.0% (more than 20 kHz to 100 kHz) Arbitrary waveform generation specifications Output waveforms Waveforms measured with Memory HiCorder MR8847A, MR8847, 8847, MR8827, MR8740, and MR8741; Waveforms created with Waveform Maker SF8000; Waveforms saved with Waveform Generator 7075; Waveforms measured with Power Quality Analyzer PW3198; Waveforms created as CSV-format files (Logic waveforms are not supported.) Voltage axis resolution 16 bits Waveform memory capacity 256 kW/ch. × 8 blocks Low-pass filter 2-stage LPF, 50 Hz to 1 MHz (14 steps in 1-2-5 progression) D/A refresh rate Max. 2 MHz (setting resolution: 10 mHz) Clock frequency accuracy ±150 ppm (Clock frequency jitter: within 50 ns p-p) Delay \-250.000 to 250.000 (Setting is possible in units of 1 data point.) Number of loops 1 to 50000 times, or ∞ Channel synchronization Set phase between unit channels or between units Sweep function specifications Sweep waveforms Non-DC function generation waveforms and arbitrary waveforms Sweep form Linear Sweep targets FG waveforms: Frequency, amplitude, offset, duty (pulse waves only) (Frequency, amplitude, and offset can be swept at the same time.); Arbitrary waveforms: Clock frequency, amplitude, offset (Clock frequency, amplitude, and offset can be swept at the same time.) Sweep time setting range 10 μs to 1000 s (setting resolution: 10 μs) Program specifications Sequence length Max. 128 steps linked for output Step control FG waveforms, sweep waveforms, and arbitrary waveforms can be set for each step. Number of loops (sweep waveforms) and output time (FG waveforms, arbitrary waveforms) can be set for each step. Hold settings On/Off can be set for each step. Output time setting range 10 μs to 1000 s (FG waveform, arbitrary waveform) Number of step loops setting range 1 to 1000 times (sweep waveform) Number of total loops setting range 1 to 50000 times, or ∞ Monitor functions Display step number, number of step loops, and total number of loops while the program is running. Other specifications Operating temperature and humidity range According to the Memory HiCorder installed with the U8793 Operating environment According to the Memory HiCorder installed with the U8793 Storage temperature and humidity Temperature: -20°C to 50°C (-4°F to 122°F), Humidity: 80% rh or less (no condensation) Standard compliance Safety: EN61010; EMC: EN61326 Dielectric withstand voltage 350 V AC (sensed current: 1 mA) (Between each output channel and the main unit, between the channels and external I/O terminals, and between the output channels) Dimensions and mass Approx. 106 mm (4.17 in) W × 19.8 mm (0.78 in) H × 196.5 mm (7.74 in) D, approx. 250 g (8.8 oz) General specifications Accuracy guarantee conditions Temperature and humidity at which accuracy is guaranteed: 23°C ±5°C (73°F ±9°F) and 80% rh or less. Warm-up time: 30 minutes or more. Power supply frequency for Memory HiCorder connected to U8793: 50 Hz/60 Hz ±2 Hz. Accuracy guaranteed for 1 year; Post-adjustment accuracy guaranteed for 1 year. > **Important:** Caution: MR8847 waveform data can be used for output, but only the MR8847A can be used for waveform generation. > **Important:** The Memory HiCorder by itself cannot create arbitrary waveforms; use the Waveform Maker SF8000 (bundled on the Application Disk included with the Memory HiCorder). > **Important:** The MR8790 Waveform Generator Unit and the MR8791 Pulse Generator Unit do not have phase control or synchronize control modes. > **Important:** These generator units are plug-in units "For the MR8847A or other" Memory HiCorder and require a Hioki Memory HiCorder mainframe (MR8847A) to operate; they cannot be used standalone. > **Important:** Connection cables are not part of the unit; the appropriate connection cable (L9795-01 SMB-to-alligator clip or L9795-02 SMB-to-BNC, both 1.5 m, max. rated voltage to ground 33 V AC rms or 70 V DC) must be ordered separately as an Option to connect the SMB output terminals to a device under test. > Recommended pairing: install the U8793 in the Memory HiCorder MR8847A and use the bundled Waveform Maker SF8000 software to create, edit, and output arbitrary waveforms. ## About this New unit This is a brand-new, factory-sealed unit, supplied exactly as it arrives from the manufacturer and backed by the full manufacturer warranty. For the exact configuration, available options, included accessories, or current lead time for your application, our Test Architects can confirm the details before you order. ValueTronics supplies both new and used test and measurement equipment. New units ship factory-sealed, exactly as received from the manufacturer; every used unit is inspected and functionally verified in-house at our 20,000 sq ft secure facility in Elgin, Illinois before it ships. Our Test Architects can help you select the condition, calibration, and configuration that fit your application. **Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.** ## Details - **Price:** 1456.0 USD - **Vendor:** Hioki - **Type:** Gen Oth - **Tags:** Hioki, Manufacturers, Other, product_manual_group_3, Product_new, Signal Generators ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 1456.00 USD | In stock | ## Images - Hioki U8793 Arbitrary Waveform Generator Unit --- > Source: [ValueTronics](https://valuetronics.com/products/u8793-hioki-generator-new) > Updated: 2026-06-20