A single instrument that can observe waveforms like an oscilloscope and record RMS value fluctuations
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.
| MR8870-20 | 2 ch |
|---|
Note: Input cords and battery pack are not included. Purchase the cords appropriate for your application separately. The AC Adapter Z1005 is included as standard.
Basic specifications (Accuracy guaranteed for 1 year)
| Number of channels |
2 analog channels + 4 logic channels (standard) Note: Isolated analog channels, isolated input and frame, logic has common GND |
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|---|---|---|
| Measurement ranges | 10 mV to 50 V/div (10 div full-scale), 12 ranges, Resolution: 1/100 of range | |
| Max. rated voltage | Between terminals: 400 VDC, Between terminal to earth: 300 VAC, DC CAT II | |
| Frequency characteristics | DC to 50 kHz (-3 dB) | |
| Time axis (Memory mode) | 100 µs to 5 min/div, 20 ranges,at 100 points/div resolution, three steps of time-axis magnification from ×2 to ×10, and 9 steps of time-axis compression from ×1/2 to ×1/1,000 | |
| Recording intervals (RMS mode) |
1 ms to 1 min., 16 settings, sampling period: 200 μs (fixed) (for AC voltage/current, 1,000 RMS values/sec.), envelope mode always on Note: Only the maximum value and minimum value for each recording interval are recorded. |
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| Measurement functions | Memory recorder (high speed recording), RMS recorder (50/60 Hz, DC only) | |
| Memory capacity | 12-bits × 2M-words/ch (1 word = 2 bytes) | |
| Removable storage | CF card TYPE I slot ×1 (Up to 2 GB) | |
| Display | 4.3-inch WQVGA-TFT color LCD (480 × 272 dots) | |
| Displayable languages | English, Japanese | |
| Interfaces | USB 2.0 mini-B receptacle ×1, Functionality: Connect the instrument to a PC to send files on the CF card to the PC. The instrument cannot be controlled from a PC. | |
| Printer | N/A | |
| Power supply |
AC Adapter Z1005: 100 to 240 VAC (50/60 Hz) , 30 VA max. (when using the AC adapter and charging the 9780 with the instrument) Battery Pack 9780: 3 VA, continuous operating time of approx. 2 hr. (25°C reference value; when used with the Z1005, the Z1005 takes priority), charging time of 200 min. using the AC adapter (25°C reference value) (option) External DC power: 10 to 16 V, 10 VA max. (connection cord of 3 m or less is available by special-order) |
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| Dimensions and mass | 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 (Dedicated program for the MR8870) ×1, Protection sheet 9809 ×1 | |
Combination status with LabVIEW or MATLAB script
| Compatible models | LabVIEW | MATLAB script |
|---|---|---|
| MR8870-20 | N/A | N/A |
OPTION:
Voltage measurement 1
(Voltage is limited to the specifications of the MR8870-20 input)
CONNECTION CORD L9790
• Flexible φ 4.1 mm (0.16 in) thin dia. • Cable allowing for up to 600 V input • 1.8 m (5.91 ft) length
ALLIGATOR CLIP L9790-01
Red/black set attaches to the ends of the Connection Cord L9790
CONTACT PIN 9790-03
Red/black set attaches to the ends of the Connection Cord L9790
GRABBER CLIP 9790-02
Red/black set attaches to the ends of the Connection Cord L9790
Voltage measurement 2
(Voltage is limited to the specifications of the MR8870-20 input)
CONNECTION CORD L9198
• φ 5.0 mm (0.20 in) dia. • Cable allows for up to 300 V input • 1.7 m (5.58 ft) length • Small alligator clip
GRABBER CLIP 9243
Attaches to the tip of the connection cable, 196 mm (7.72 in) length, CAT III 1000 V
CONNECTION CORD L9197
Current measurement 1
*Use in combination with the Sensor Unit 9555-10
*Power supply unit 9555-10 for the 9272-10 to the 9279 clamp sensors
UNIVERSAL CLAMP ON CT 9279
• DC to 20kHz • Phase: DC to 20kHz • Rated 500A • 2V/500A output • φ40mm (1.57in) dia.
CLAMP ON SENSOR 9272-10
• 1Hz to 100kHz • Phase: 5Hz to 50kHz • Rated 20A or 200A • 2V/20A, 2V/200A output • φ46mm (1.81in) dia.
CONNECTION CORD L9217
Cord has insulated BNC connectors at both ends, for signal output, 1.6 m (5.25 ft) length
SENSOR UNIT 9555-10
• Power supply for current sensors when used alone
UNIVERSAL CLAMP ON CT 9277, 9278
• DC to 100kHz • Phase: DC to 100kHz • Rated 20A and 200A • 2V/rated current output • φ20mm (0.79in) dia.
Contact us for more detail.
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