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HOBO Motor On/Off Data Logger
Dhs. 616.00
VAT included
Overview Records motor on/off conditions within an AC magnetic field with its internal sensor, or mechanical dry contact closures from external sensing devices. This logger is ideal for tracking the usage and runtimes of motors, pumps, compressors, and other equipment. Item number UX90-004M has been discontinued. Features...
AC Magnetic Field Threshold>40 mGauss at 60 Hz
External Contact InputElectronic solid state switch...
Range0 to 3 V DC (USB powered), 0 ...
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Product overview
Built for reliable measurement
Overview
Records motor on/off conditions within an AC magnetic field with its internal sensor, or mechanical dry contact closures from external sensing devices. This logger is ideal for tracking the usage and runtimes of motors, pumps, compressors, and other equipment.
Item number UX90-004M has been discontinued.
Features
- Dual internal motor sensors gives better sensitivity for well-shielded motors
- External input for measuring mechanical contact closures when signal strength is low
- Auto-calibration of ON and OFF thresholds ensures reliable readings
- Compatible with HOBOware and HOBOware Pro software for logger setup and graphing & analysis
- AC Magnetic Field Threshold: >40 mGauss at 60 Hz
- External Contact Input: Electronic solid state switch closure or logic driven voltage output
- Range: 0 to 3 V DC (USB powered), 0 to 2.5 V DC (battery powered)
- Maximum State and Runtime Frequency: 1 Hz
- Solid State Switch Closure: Input Low: 500 KΩ
- Internal Weak Pull-Up: 100 KΩ

Technical specifications
AC Magnetic Field Threshold>40 mGauss at 60 Hz
External Contact InputElectronic solid state switch closure or logic driven voltage output
Range0 to 3 V DC (USB powered), 0 to 2.5 V DC (battery powered)
Maximum State and Runtime Frequency1 Hz
Solid State Switch ClosureInput Low: < 10 KΩ; Input High: > 500 KΩ
Internal Weak Pull-Up100 KΩ
Input ImpedanceSolid state switch closure: 100 KΩ pull up
Resolution Pulse: 1 pulse, Runtime: 1 second, State and Event: 1 State or Event
Time Accuracy ±1 minute per month at 25°C (77°F) (see Plot A)
Power SourceOne 3V CR2032 lithium battery and USB cable
Battery Life1 year, typical with logging intervals greater than 1 minute and normally open contacts
MemoryUX90-004: 128 KB (84,650 measurements, maximum) UX90-004M: 512 KB (346,795 measurements, maximum)
Download Type USB 2.0 interface
LCDLCD is visible from: 0° to 50°C (32° to 122°F); the LCD may react slowly or go blank in temperatures outside this range
Weight30g
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User's ManualApplications
HOBO Motor On/Off Data Logger
Dhs. 616.00
