HOBO MX Water Level Logger (MX2001-0x) Manual
U.S. and International Sales: 1-508-759-9500 2
www.onsetcomp.com
Specifications (continued)
Pressure (Absolute) and Water Level Measurements MX2001-04-SS-S and MX2001-04-Ti-S
Operation Range
0 to 145 kPa (0 to 21 psia); approximately 0 to 4 m (0 to 13 ft) of water depth at sea level, or 0 to 7 m (0 to 23
ft) of water at 3,000 m (10,000 ft) of altitude
Factory Calibrated Range
69 to 145 kPa (10 to 21 psia), 0° to 40°C (32° to 104°F)
Burst Pressure
310 kPa (45 psia) or 18 m (60 ft) depth
Water Level Accuracy*
Typical error: ±0.075% FS, 0.3 cm (0.01 ft) water
Maximum error: ±0.15% FS, 0.6 cm (0.02 ft) water
Raw Pressure Accuracy**
±0.3% FS, 0.43 kPa (0.063 psi) maximum error
Resolution
<0.014 kPa (0.002 psi), 0.14 cm (0.005 ft) water
Pressure Response Time (90%)***
<1 second at a stable temperature
Barometric Pressure (MX2001-TOP)
Operation Range
66 to 107 kPa (9.57 to 15.52 psia)
Temperature Calibrated Range
-20 to 50°C (-4 to 122°C)
Accuracy
±0.2 kPa (±0.029 psi) over full temperature range at fixed pressure; maximum error ±0.5% FS
Water Level Accuracy*
Typical error: ±0.075% FS, 0.3 cm (0.01 ft) water
Maximum error: ±0.15% FS, 0.6 cm (0.02 ft) water
Resolution
<0.01 kPa (0.0015 psi)
Response Time
<1 second at stable temperature
Stability (Drift)
<0.01 kPa (0.0015 psi) per year
Temperature Measurements (All Sensor End Models MX2001-0x-SS-S and MX2001-0x-Ti-S)
Operation Range
-20° to 50°C (-4° to 122°F)
Accuracy
±0.44°C from 0° to 50°C (±0.79°F from 32° to 122°F), see Plot A
Resolution
0.1°C at 25°C (0.18°F at 77°F), see Plot A
Response Time (90%)
5 minutes in water (typical)
Stability (Drift)
0.1°C (0.18°F) per year
Logger
Operating Range
-20° to 50°C (-4° to 122°F)
Radio Power
1 mW (0 dBm)
Transmission Range
Approximately 30.5 m (100 ft) line-of-sight
Wireless Data Standard
Bluetooth Low Energy (Bluetooth Smart®)
Logging Rate
1 second to 18 hours
Logging Modes
Fixed interval, multiple intervals with up to 8 user-defined logging intervals and durations, or burst
Memory Modes
Never Stop (Overwrites Old Data) or Stop When Full
Start Modes
On Save (immediate), On Next Interval, On Date/Time
Stop Modes
Never Stop (Overwrites Old Data), On Date/Time, After (a specified amount of time), Stop When Memory Fills
Time Accuracy
±1 minute per month 0° to 50°C (32° to 122°F)
Battery
Two AA, 1.5 V alkaline batteries, user replaceable
Battery Life
1 year, typical with logging interval of 1 minute. Faster logging and/or statistics sampling intervals, entering
burst logging mode, excessive readouts, checking of Full Status Details, and remaining connected with the app
will impact battery life.
Memory
256 KB memory (30,000 sets of measurements)
Full Memory Download Time
Approximately 2 minutes; may take longer the further the device is from the top end of the logger
Dimensions
Top end (MX2001-TOP): 2.54 cm (1.0 inches) diameter, 28.9 cm (11.4 inches) length; mounting hole 7.6 mm
(0.3 inches) diameter
Sensor end (MX2001-0x-SS-S and MX2001-0x-Ti-S: 2.54 cm (1.0 inches) diameter, 9.91 cm (3.9 inches) length
Note:
The length of the water level logger cable (CABLE-DR-xxx) can vary -0% to +3% +10 cm (3.9 inches) from
the length ordered. The logger adds 38.8 cm (15.3) inches to the length of the cable ordered.
