Descripción
Hioki MR8870-20 Memory HiCorder, Memory Recorder 2 CH
- Record four channels at once by synchronizing two instruments with the bundled PC application
- Compact and easy to carry
- Easy, intuitive operation
- Fast, 1MS/s performance despite the compact size
- Built-in, compact-yet-sharp QVGA-TFT wide LCD
Hioki Memory HiCorders are high-speed waveform monitoring and recording devices that can simultaneously measure multiple quick-changing phenomena due to complete isolation between channels and from each channel to the ground. The MR8870-20 is a handheld data acquisition (DAQ) recorder built in with 2 analog channels and 2MW of memory, suitable for elevator maintenance, machine, motor and inverter fault analysis, testing and inspections.
Oscilloscope-like Waveform Observation, Plus Recording of RMS Variations – In a Single Device!
RMS recording function makes its debut on this device!
Enhancing the ultra-compact oscilloscope-functioning Hioki 8870-20, the new MR8870-20 features a new RMS recording mode and real-time save to a CF card.
- Measure safely, with isolated input for all channels
- Test commercial power lines with ease of mind thanks to isolated input for both channels
- Monitor instantaneous waveforms on-site
- High-speed waveform observation/recording with 1 M sampling, despite compact size
- Monitor fluctuations in commercial power lines
- Real-time recording of data to CF card with 1 ms/sampling recording interval in a compact package
- Synchronize two HiCORDERs together to measure three-phase lines and otherchannels needing three or more channels
- Bundled PC application enables integration/observation of synchronized data from two HiCORDERs on a single screen
Manufacturer Specs
| MR8870-20 Specifications | |
| Measurement functions | Memory recorder (high-speed recording), RMS recorder (50/60 Hz, or DC only) |
| No. of channels | 2 analog and 4 logic channels (For analog inputs, channels are isolated form each other and from frame GND. For logic terminals, all channels has common GND.) |
| Maximum sampling rate | 1 MS/s (1 μs period, all channels simultaneously) |
| Memory capacity | 12 bits × 2 M-Words/ch |
| Removable storage | CF card Type I slot (standard equipment) ×1: Up to 2 GB, supports FAT, or FAT-32 format Memory items: Setting condition, measurement data (binary or text), screen shot, result of numerical calculation, reduced text saving data |
| Backup function | Clock and settings: 5 years or more (@25°C 77°F) Waveform backup function: available when Battery pack 9780 is installed with charge remaining or AC adapter is connected (up to 100 hours with fully charged battery pack). |
| Control terminals | Terminal block: External trigger input, trigger output |
| External interface | USB: USB 2.0, mini-B receptacle ×1 port, Function: Transfer files from the installed CF card to a PC via USB cable, but communication functions such as the capability to change HiCorder settings from the PC are not provided. |
| Display type | 4.3-inch TFT color LCD (480 × 272 dots) |
| Display resolution | Waveform section: 20 div (time axis) × 10 div (voltage axis) (1 division = 20 dots × 20 dots) |
| Display languages | English, Japanese (Default settings: English) |
| Environmental condi tions (no condensation) |
Operation: 0°C (32°F) to 40°C (104°F), 80 % rh or less Storage: -10°C (14°F) to 50°C (122°F), 80 % rh or less |
| Compliance standard |
Safety: EN61010, EMC: EN61326, EN61000-3-2, EN61000-3-3 |
| Power supply | • AC Adapter Z1005: 100 to 240 V AC, 50/60 Hz • Battery pack 9780: continuous operation times: approx. 2 hours (reference value at 25°C/77°F, waiting for trigger) (AC adapter has priority when used in combination with battery pack) • DC power supply: 10 to 16 V DC (please contact your Hioki distributor for connection cord, max. 3 m/9.84 ft length) |
| Power consumption |
30 VA max. (When using the AC adapter and charging internal battery pack 9780) 10 VA max. (When using external DC power supply and charging internal battery pack 9780) 3 VA max. (When using the battery pack 9780) |
| Charging functions | The installed battery pack charges when the AC adapter is connected. Charging time is about 200 minutes (reference value at 25°C/77°F) Notes: Charging time depends on battery condition. Charging is disabled to protect the battery at ambient temperatures out of 5°C (41°F) to 30°C (86°F). |
| Dimensions and mass |
Approx. 176 mm (6.93 in) W × 101 mm (3.98 in) H × 41 mm (1.61 in) D, 600 g (21.2 oz) (with the Battery pack 9780 installed) |
| Accessories | Instruction Manual ×1, Measurement Guide ×1, AC adapter Z1005 ×1, Strap ×1, USB cable ×1, Application Disk (Wave Processor Program for the 8870) ×1, Protection sheet 9809 ×1 |
| Trigger functions (For memory recorder only) | |
| Trigger modes | Single, continuous |
| Trigger sources | Two analog channels, four logic channels, external trigger (falls below 2.5 V, or shorted terminals), ON/OFF switching of each source, AND/OR between sources, manual triggering |
| Trigger types (Analog) |
• Level: Triggering occurs when preset voltage level is crossed (upwards or downwards) • Voltage drop: Triggering occurs when voltage drops below peak voltage setting (for 50/60 Hz AC power lines only) • Window: Triggering occurs when window defined by upper and lower limit is entered or exited |
| Level setting resolution | 0.5% f.s. (f.s.=10 divisions) |
| Trigger types (Logic) | 1, 0, or ×, Pattern setting |
| Trigger filter | Set by the number of samples, from 0 to 100 samples, in five steps |
| Other functions | Trigger output: open collector 5 voltage output, active low with at least 1 ms pulse width |
| Analog Input | (Accuracy at 23 ±5°C/73 ±9°F, 80 % rh or less, after 30 minutes of warm-up time; accuracy guaranteed for 1 year) |
| Measurement functions | Number of channels: 2, for voltage measurement |
| Input connectors | Isolated BNC connector (input impedance 1 MΩ, input capacitance 7 pF) Max. rated voltage to earth: 300 V AC, DC, CAT II (with input isolated from the unit, the maximum voltage that can be applied between input channel and chassis and between input channels without damage) |
| Measurement range (at Memory recorder) |
10 mV to 50 V/div, 12 ranges, full scale: 10 div, AC voltage for possible measurement/display using the memory function: 280 V rms, Low-pass filter: 5 /50 /500 /5 kHz |
| Measurement esolution |
1/100 of measurement range (using 12-bit A/D conversion, measurement range is ±10 times range value) |
| Highest sampling rate | 1 MS/s (simultaneous sampling in 2 channels) |
| Accuracy | ±0.5 % f.s. (after zero-adjust, in measurement range, f.s. = 10 div) |
| Frequency characteristics | DC to 50 kHz -3dB |
| Input coupling | DC / GND |
| Max. allowable input | 400 V DC (the maximum voltage that can be applied across input pins without damage) |
| Display functions | • Numerical value display: instantaneously value, or RMS value (DC, or 50/60 Hz only) (cannot select at measuring) • Waveform display zoom at voltage axis ×2 to ×10, compression ×1/2, ×1/5 Note: X-Y display N/A (X-Y possible on PC screen by supplied software only) |
| Other functions | |
| Convenient functionality |
Setup Wizard – guides you through the settings. Waveform monitor – lets you make settings while waveforms are displayed, and reflects the changes on the display in real time. |
| Saving to external memory |
Automatic saving of measurement data to CF card Note: In the 50-ms/div-and-slower time axis range, binary-format waveform data is saved simultaneously with measurement, shortening the dead time due to writing. Updating save possible (old files are deleted as new files are saved) |
| Cursor readout function |
Readouts of potential at A/B cursor position, time since triggering, time difference and potential difference between A and B cursor positions, and frequencies at their positions |
| Scaling functionality |
Settable for individual channels • Memory recorder: OFF, model setting, conversion ratio setting, 2-point setting method • RMS value recorder: For voltage: OFF, model setting. For current: sensor model setting. |
| Other functions | Comment entry, screen capture, gauges, start condition preservation, auto setup, waveform scrolling (possible during measurement) |
Tech Specs
Dataloggers / Data Acquisition/Data Recorders Template |
|
|---|---|
| Type (Recorders) | Data Logger |
| Style (Recorders) | Bench / Portable |
| # Channels Expanded plus Logic (Recorders) | 6 EA |
| # Channels Base Unit (Recorders) | 6 EA |
| Display (Recorders) | Built-in, Included w/ Base Unit |
| # Logic / Digital Channels (Recorders) | 4 |
| Sampling Interval (Controllers/Recorders) | 1 uS (0.001 ms) |
| Sampling Frequency (Recorders) | 1 MS/S |
| Input Types (Controllers/Recorders) | Digital / Logic / On-Off, Voltage |
| Bits | 12 |
| Power Source | AC Line, Battery |
| Screen Size | 4.3 IN |
| Special Functions (Recorders) | External Trigger, PC Software Available |
| Data storage | Yes |
| Isolated Inputs (Recorders) | Yes |
| Accuracy | ±0.5 % f.s. (after zero-adjust, in measurement range, f.s. = 10 div) |
Test Equipment General Attributes |
|
| Warranty | 2 YEARS |
| Interfaces I/O | Analog Input , Remote Sense, USB |
| Storage | Compact Flash |
| Product Weight | 600 GRAMS (1.32 LBS) |
| Product Height | 41 MM (1.61 IN) |
| Product Length | 101 MM (3.98 IN) |
| Product Width | 176 MM (6.93 IN) |
| Data Logging | Yes |
| HTS/Schedule B Number | 9030.33.3400 |
| ECCN Number | 3A992 |
| Calibration Included | None |
| Battery Type | NimH |
| Power Supply Voltage | 120V/220V Universal, Battery Powered |
| Country of Origin | Japan |
| Shipping Height | 5.50 IN |
| Shipping Length | 9.00 IN |
| Shipping Width | 7.00 IN |
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