HOBO Motor State Open/Close On/Off Data Logger UX90-004

Overview The HOBO Motor On/Off data logger records motor on and off conditions within an AC magnetic field with its internal sensor, or mechanical dry contact closures from external sensing devices. This data logger is ideal for tracking the usage amp; runtimes of motors, pumps, compressors, and other equipment. The HOBO UX90-004 Motor On/Off Data Logger is available in a standard 128 KB memory model (UX90-004) capable of 84,650 measurements and an expanded 512KB memory version (UX90-004M) capable of over 346,795 measurements. Highlighted 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, graphing and analysis Spesifications External Input 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: lt; 10 KΩ; Input High: gt; 500 KΩ Internal weak pull-up: 100 KΩ Input impedance: Solid state switch closure: 100 KΩ pull up Logger Resolution: Pulse: 1 pulse, Runtime: 1 second, State and Event: 1 State or Event UX90-002- Temperature Specification ChartTime accuracy: ±1 minute per month at 25°C (77°F) (see Plot A) Battery life: 1 year, typical with logging intervals greater than 1 minute and normally open contacts Memory UX90-004: 128 KB (84,650 measurements, maximum) UX90-004M: 512 KB (346,795 measurements, maximum) Download type: USB 2.0 interface 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