HOBO® Plug Load Logger (UX120-018) Manual
17838-A MAN-UX120-018
The HOBO Plug Load logger is designed to monitor energy consumption of AC-powered plug in
loads. This compact device can be used as a power meter with its built-in LCD for real-time
energy monitoring or as a data logger that can record up to 1.4 million measurements for
analysis. With the ability to view or log true RMS voltage (V), true RMS current (A), active
power (W), active energy (Wh), apparent power (VA), and power factor (PF), the HOBO Plug
Load logger provides you with an accurate log of your energy consumption of plug loads. Using
HOBOware®, you can also easily configure the logger to calculate minimum, maximum, and
average statistics during logging at a fixed sampling rate of 16.67 mS.
Specifications
RMS Voltage Accuracy 0.5% up to 14 Amp continuous; up to 1.0% over 14 Amp when equipment
being monitored is at 100% duty cycle
RMS Current Accuracy 0.5% up to 14 Amp continuous; up to 1.0% over 14 Amp when equipment
being monitored is at 100% duty cycle
Active Power Accuracy 0.5% up to 14 Amp continuous; up to 1.0% over 14 Amp when equipment
being monitored is at 100% duty cycle
Active Energy Accuracy 0.5% up to 14 Amp continuous; up to 1.0% over 14 Amp when equipment
being monitored is at 100% duty cycle
Power Factor Accuracy ±0.02
Drift Up to 0.5% typical within 1 year
Resolution 1 Watt Load at 120 V AC 15 Amp
Operating Environment Logging: 5° to 40°C (41° to 104°F); 0 to 95% RH (non-condensing), up to
2,000 m (6,562 ft) altitude
Operating Modes Meter or logging when launched with HOBOware
Logging Rate 1 second to 18 hours, 12 minutes, 15 seconds
Statistics Sampling Rate 60 Hz or 16.67 mS single-cycle
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
Restart Mode Push button
Time Accuracy ±1 minute per month at 25°C (77°F), see Plot A
Power Source Line-powered with 0.92 m (3 ft) AC power cord or two AAA 1.5 V alkaline
batteries, user replaceable
Battery Life 2 years with line power; 6 months battery only (no line power) with
logging rate of 1 minute or greater operating at 25°C (77°F)
Memory 4 MB (1.4 million measurements, maximum)
Download Type USB 2.0 interface
Full Memory Download Time Approximately 1.5 minutes
LCD 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
Size 13.97 x 7.62 x 4.75 cm (5.5 x 3 x 1.87 in.)
Weight 230.8 g (8.14 oz)
Ratings IP50; UL Listed; UL Listed to Canadian safety standards
Calibration This device has been calibrated using equipment that has been tested in
accordance with ANSI C12.20 0.5%.
HOBO Plug Load Logger
UX120-018
Included Item:
• AC power cord
Required Items:
• HOBOware 3.7 or later
• USB cable (included with
software)
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com
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