Hioki MR8870 MEMORY HiCORDER

The Hioki MR8870 MEMORY HiCORDER performs oscilloscope-like waveform observation and records RMS variations in a single device. The Hioki MR8870 is a high-speed waveform monitoring and recording device that simultaneously measures multiple quick-changing phenomena due to complete isolation between channels and from each channel to the ground. The MR8870 model is a handheld data acquisition (DAQ) recorder with 2 analog channels and 2MW of memory, suitable for elevator maintenance, machine, motor and inverter fault analysis, testing and inspections.

Product Info Related Products

Number of channels	2 analog channels + 4 logic channels (standard) Note: Isolated analog channels, isolated input and frame, logic has common GND
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 eartd: 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, tdree 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 tde maximum value and minimum value for each recording interval are recorded.
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 tde instrument to a PC to send files on tde CF card to tde PC. tde 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 tde AC adapter and charging tde 9780 witd tde instrument) Battery Pack 9780: 3 VA, continuous operating time of approx. 2 hr. (25°C reference value; when used witd tde Z1005, tde Z1005 takes priority), charging time of 200 min. using the AC adapter (25°C reference value) External DC power: 10 to 16 V, 10 VA max. (connection cord of 3 m or less is available by special-order)
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) (witd tde 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 tde MR8870) ×1, Protection sheet 9809 ×1

Test commercial power lines with ease of mind thanks to isolated input for both channels
High-speed waveform observation/recording with 1 M sampling, despite compact size
Real-time recording of data to CF card with 1 ms recording interval in a compact package
Bundled PC application enables integration/observation of synchronized data from two HiCORDERs on a single screen
Mode for recording instantaneous waveform and RMS fluctuations
Save values in real time to a CF card
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

Record Motor Rush Current
- Precisely record motor power-on inrush current waveforms when paired with the 9018-50 Clamp On Probe or 3283 Clamp On Leak HiTester. Measure direct current waveforms with a variety of AC/DC current sensors.
Measure CB Timing
- Analyze the relationships of multi-point logic signals and analog waveforms to detect timing issues that can affect power supply circuit breakers. Use logic probes to record relay operations on up to four channels, or use the Differential Probe P9000 for three-phase 440 v power line measurements and for support of CAT III 600 V measurement categories.
Analyze Sequence Controller Issues
- When sequence controllers being used in processes such as production and testing lines stop due to errors or generate warning output, potential causes include momentary AC power interruptions and brownouts. The MR8870 is ideal for analyzing the operation of such systems since it can record the correlation of sequence relay signals, AC power circuits, and DC voltage circuits as waveforms using power supply anomalies as a trigger.