Part Number - UX90-004
HOBO Motor On/Off Data Logger
Records motor on/off conditions within an AC magnetic field with its internal sensor, or mechanical dry contact closures from external sensing devices.
Requires HOBOware software and a USB cable. (Note: A USB-A to USB-B mini cable is included w/HOBOware Pro USB Drive software purchase). See compatible items below.
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.
- 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
Country of Origin
Internal Motor Sensor
- AC Magnetic Field Threshold
>40 mGauss at 60 Hz
- External Contact Input
Electronic solid state switch closure or logic driven voltage output
0 to 3 V DC (USB powered), 0 to 2.5 V DC (battery powered)
- Maximum State and Runtime Frequency
- Solid State Switch Closure
Input Low: < 10 KΩ; Input High: > 500 KΩ
- Internal Weak Pull-Up
- Input Impedance
Solid state switch closure: 100 KΩ pull up
Pulse: 1 pulse, Runtime: 1 second, State and Event: 1 State or Event
- Memory Modes
Wrap when full or stop when full
- Start Modes
Immediate, push button, date & time, or next interval
- Stop Modes
When memory full, push button, or date & time
- Time Accuracy
±1 minute per month at 25°C (77°F) (see Plot A)
- Power Source
One 3V CR2032 lithium battery and USB cable
- Battery Life
1 year, typical with logging intervals greater than 1 minute and normally open contacts
UX90-004: 128 KB (84,650 measurements, maximum)UX90-004M: 512 KB (346,795 measurements, maximum)
- Download Type
USB 2.0 interface
- Full Memory Download Time
10 seconds for 128 KB; 30 seconds for 512 KB
- Logger Operating Range
Logging: -20° to 70°C (-4° to 158°F); 0 to 95% RH (non-condensing)Launch/Readout: 0° to 50°C (32° to 122°F) per USB specification
LCD is visible from: 0° to 50°C (32° to 122°F); the LCD may react slowly or go blank in temperatures outside this range
3.66 x 8.48 x 1.52 cm1.44 x 3.34 x 0.6 in.
30 g1.06 oz
- Environmental Rating
Graphing & Analysis
AC Current Switch Sensor
- Requires item CABLE-2.5-STEREO from the DC VOLT Cables product Page
What's in the box
- HOBO UX90-004 Motor On/Off Data Logger
- Command™ strip
- Double-sided tape
- Hook & loop strap
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