MIJ-01 is developed to proposition for high precision, high resolution, multi channel, large data capacity, small size, lightweight, energy saving, and usefulness . Thus, MIJ-01 can support Diff 8ch, Zero-cross, pulse, and serial input; and it can also last long with only 4 AA battery.
Not only these but using Option MUX32/64 MultiPlexer, it can enhance the number of channels up to DIFF64 channels and 128 Single end channels; which mean it can be able to use on a small scale as stand alone to extensive measurements scale.
Feature:
- Work 350 days with mounted 4AA alkaline batteries.
- Individual 8 Ch.150mA capacity pre-heat output
(Excitation out put for drive many kind of sensors) - Analog inputs of DIFF8ch (SE16ch) equipped with zero-crossing 2ch, rain gauge pulse 4ch and RS232C /2ch. 5ppmTCXO is used for time stamp.
- Additional calibration was done using satellite 1pps pulse at factory calibration 24 bit AD converter (effective 18bit).
- Micro SD Memory card slot mounted on MIJ-01; No need to think about memory limit.
- E-LOG Software makes easy logger operation.
(Free download without authentication) - External power supply accept DC12V many kind of batteries
- PC requires USB cable for connecting PC
(USB cable supplied with MIJ-01) - Sized almost same as spread passport size
- Easy installation to Pelican1120 water proof box
(Optional or user can buy everywhere)
MIJ-01 Specification
| Input Range | Resolution | Error Rate |
| DIFF ±5000 mV | 0.01mV | ±0.02%F.S. |
| SE 0 to +5000mV | 0.01mV | ±0.03%F.S. |
| DIFF ±1250 mV | 0.01mV | ±0.05%F.S. |
| SE 0 to +1250mV | 0.01mV | ±0.05%F.S. |
| DIFF ±15 mV | 0.1 micro V | ±0.04%F.S. |
| SE 0 to +62.5mV | 0.1 micro V | ±0.04%F.S. |
| Temperature measurement | Support T and K type thermocouple when On-board IC thermistor + aluminum block set as Cold junction . Precision of cold junction temperature ±1.0℃ |
| Built-in Clock |
Guaranteed ±5 ppm, since using TCXO crystal oscillator |
| DC measurement accuracy | ± 0.016% (calibrated by YOKOGAWA GS200 and based on result from comparative test by Keithley2002) |
| Analogue input | DIFF/8ch, (SE/16ch) |
| preheat output | 8 ch (DC12, 5 and 2.5V which selectable with ELOG and each DIFF channel can be set independently ) |
| Pre-heat Capacity | Maximum current value 150mA/ch |
| Pulse input | 4ch (Used for such as rain gauge with less than 20 Hz) |
| Zero cross inputs | 2ch (Used for such as anemometers but Generator type will be with less than 15V) |
| Serial input | 2ch (RS232C Tx,Rx,DG,CTS,RTS) |
| External battery input | 9 to 18 DCV |
| Program memory | 128KB (Built in microcomputer) |
| SD card format | FAT32 |
| EEP ROM capacity | 32kB (On-board) |
| DC current at sleep mode | Less than 10 μA |
| DC current at measurement | Less than 80 mA (less than 100 mA when writing to memory card) |
| Working environment | -25 to 60 ℃ /90%RH NO support for condensation. (Use waterproof case, desiccant and cable grant at outside installation.) |
| Size | 176 x 116 x 28 mm |
| Screw position for panel mount | Wide 169 mm offset +30mm (2 of M4 bolts and washer are recommended. See manual.) |
| Weight | 358g (455g With 4AA alkaline batteries) |
| Battery | 4 AA battery (Accept another type but only 1.2 to 1.8DCV/ cell ) |
| Memory back up battery | When external battery connected, mounted 4AA will work as back up battery |
| Running time | 350 days (This running time based on set up for analog 8ch, interval 10 minutes, and not using pre-heat) |
| Measurement Interval | sec: 1, 2, 5, 10, 30 min: 1, 3, 5, 10, 15, 30 hr: 1, 3, 6 |
| A/D converter | 24bit (When less than noise level it will be consider as 18bit RMS value) |
| Input impedance | > 2MΩ |
| Cable size | AWG24 to 16 (φ0.52 to 1.29mm) |
| Material | RoHS |
| Operation manual | Download from EMJ homepage |
Please feel free to contact us with questions about orders or products.