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Description
- Wireless multimeter and data logger that uses your smartphone as a display
- Wireless connectivity and rugged construction that mean you can diagnose from distance
- Data is logged to a removable microSD card for up to 6 months
- True 2-channel, simultaneous sampling and a 600V 10A rating that allow detailed diagnosis of AC systems
The Mooshimeter Smartphone Multimeter & Datalogger was born out of frustrations of electrical engineers at the limitations of the “standard” digital multimeter. It makes multi-channel measurements possible in situations that are too fast, too slow, too sensitive or too dangerous to use a traditional multimeter.
Almost every digital multimeter will only let you use one mode at a time, meaning that to watch relationships in an active system you need to use multiple meters. Most have a front panel dominated by a numeric LCD display and a gigantic mode selection knob. Having the display mounted on the measurement hardware makes it very difficult to measure moving or enclosed systems, because the user must have clear line of sight to the meter to be able to read it. The Mooshimeter uses the hardware you’re already carrying with you to provide features previously available only on much more expensive instruments in a tiny, durable and affordable package.
Voltage:
- Up to 600V, DC or peak AC
- Up to 420VAC RMS sinusoidal
- Better than 0.5% accuracy DC
- Better than 1.0% accuracy AC for harmonic content below 1kHz
- >10 Megaohm input impedance
High Precision Voltage:
- Up to 100mV with <15nV per count resolution
- Up to 1.2V with <200nV per count resolution
- >10 Megaohm input impedance
Current, Internal:
- Up to 10 Amps
- 20 µV / mA burden voltage (using factory fuse)
- Less than 5 µA per count in 10 Amp scale
- Better than 1% accuracy
Resistance:
- Better than 1% accuracy over 20 Ohms – 20 Megaohms
Frequency:
- Better than 1% accuracy up to 1kHz
Diodes:
- Up to 1V @ 100nA
Sampling:
- 8kHz dual simultaneous sampling
- 4kHz analog bandwidth for most measurements
- 24-bit resolution max
- >18 Effective bits at 125 samples per second
On Board Storage – SD Card:
- MicroSD Card
- Up to 32GB, More than a week of constant logging two channels at 8kHz
- SD or SDHC (not SDXC)
Radio:
Protocol: Bluetooth Low Energy
GATT Profile: To be released in 2014
Wireless Range:
The wireless range has been tested empirically through the following media to an iPhone 5.
- 50m air, line of sight
- 5cm of refrigerator, door closed
- 1m of 2006 Honda Civic – Engine compartment to the passenger seat
- 10m air + safety shield of a Tesla Coil rock bands testing facility
Applications:
Power:
Simultaneous high-speed sampling of voltage and current gives the following power measurements:
- True Power
- Reactive, Complex, Apparent Power
- Power Factor
- Total Harmonic Distortion
- Phase Lead or Lag
Impedance:
Measure the supply sag under the load to estimate:
- Supply or Battery equivalent resistance
- Battery State of Health
Current Measurement, External Shunt:
- Measure thousands of amps with sub-milliohm shunts
- Measure precision currents with large shunts
- Use the existing wiring for “quick’n’dirty” measurements
- Use 1′ of 10 AWG for 12µA per count resolution, up to several times the wires ampacity.
Temperature:
- External Thermistors, Steinhart-Hart or Beta parameterized
- External Thermocouples
- Internal ambient temperature sensor