HOBO® MX Water Level Logger (MX2001-0x) Manual
19389-U
The HOBO MX water level logger monitors changing water levels in a wide range of
applications, including streams, lakes, wetlands, tidal areas, and groundwater. This
Bluetooth® Low Energy (BLE)-enabled logger is designed for wireless communication
with a phone, tablet, or computer. Using the HOBOconnect® app, you can easily
configure the logger and download its data—all from its deployed location—to your
mobile device or computer where you can view the logged data or export it for further
analysis. With the HOBOconnect app, you can also set a reference water level and water
density, configure up to 8 logging intervals, log statistics, configure an alarm to trip at
thresholds you specify, or set up burst logging in which data is logged at a different
interval when sensor readings are above or below certain limits. This logger features a
ceramic pressure sensor, durable housing, and an integrated barometric pressure sensor
for barometric compensation in the logger, which allows for direct water level readout
without needing to do any post processing. An optional cap is also available for
deployment in existing wells or stilling wells. Without cumbersome vent tubes or
desiccants to maintain and convenient data retrieval, this easy-to-use logger is an ideal
solution for water level studies and research.
Specifications
Pressure (Absolute) and Water Level Measurements MX2001-01-SS-S and MX2001-01-Ti-S
Operation Range
0 to 207 kPa (0 to 30 psia); approximately 0 to 9 m (0 to 30 ft) of
water depth at sea level, or 0 to 12 m (0 to 40 ft) of water at
3,000 m (10,000 ft) of altitude
Factory Calibrated Range
69 to 207 kPa (10 to 30 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: ±0.05% FS, 0.5 cm (0.015 ft) water
Maximum error: ±0.1% FS, 1.0 cm (0.03 ft) water
Raw Pressure Accuracy**
±0.3% FS, 0.62 kPa (0.09 psi) maximum error
Resolution
<0.02 kPa (0.003 psi), 0.21 cm (0.007 ft) water
Pressure Response Time (90%)***
<1 second at a stable temperature
Pressure (Absolute) and Water Level Measurements MX2001-02-SS-S
Operation Range
0 to 400 kPa (0 to 58 psia); approximately 0 to 30.6 m (0 to 100
ft) of water depth at sea level, or 0 to 33.6 m (0 to 111 ft) of
water at
3,000 m (10,000 ft) of altitude
Factory Calibrated Range
69 to 400 kPa (10 to 58 psia), 0° to 40°C (32° to 104°F)
Burst Pressure
500 kPa (72.5 psia) or 40.8 m (134 ft) depth
Water Level Accuracy*
Typical error: ±0.05% FS, 1.5 cm (0.05 ft) water
Maximum error: ±0.1% FS, 3.0 cm (0.1 ft) water
Raw Pressure Accuracy**
±0.3% FS, 1.20 kPa (0.17 psi) maximum error
Resolution
<0.04 kPa (0.006 psi), 0.41 cm (0.013 ft) water
Pressure Response Time (90%)***
<1 second at a stable temperature
Pressure (Absolute) and Water Level Measurements MX2001-03-SS-S
Operation Range
0 to 850 kPa (0 to 123.3 psia); approximately 0 to 76.5 m (0 to
251 ft) of water depth at sea level, or 0 to 79.5 m (0 to 262 ft)
of water at 3,000 m (10,000 ft) of altitude
Factory Calibrated Range
69 to 850 kPa (10 to 123.3 psia), 0° to 40°C (32° to 104°F)
Burst Pressure
1,200 kPa (174 psia) or 112 m (368 ft) depth
Water Level Accuracy*
Typical error: ±0.05% FS, 3.8 cm (0.125 ft) water
Maximum error: ±0.1% FS, 7.6 cm (0.25 ft) water
Raw Pressure Accuracy**
±0.3% FS, 2.55 kPa (0.37 psi) maximum error
Resolution
<0.085 kPa (0.012 psi), 0.87 cm (0.028 ft) water
Pressure Response Time (90%)***
<1 second at a stable temperature
HOBO MX Water Level
Logger
Models:
•
MX2001-01-SS or MX2001-01-Ti
(Titanium), 9-meter/30-foot
depth)
•
MX2001-02-SS, 30-meter/100-
foot depth
•
MX2001-03-SS, 76-meter/250-
foot depth
•
MX2001-04-SS or MX2001-04-Ti
(Titanium), 4-meter/13-foot
depth
Note: Each model consists of a
sensor end (MX2001-0x-SS-S or
MX2001-0x-Ti-S) and a top end
(MX2001-TOP).
Included Items:
•
Two AA 1.5 V Batteries
•
Grease packet
•
5 cm (2 inch) grommet
•
Logger consisting of a top end
and sensor end connected by a
cable in desired length (ordered
separately)
Required Items:
•
HOBOconnect app
•
Mobile device with Bluetooth
and iOS, iPadOS®, or Android™,
or a Windows computer with a
native BLE adapter or
supported BLE dongle
•
Cable (CABLE-DR-xxx)
Accessory:
•
Well cap (WELL-CAP-01)
