Technical Information
|
Pressure (Absolute) and Water Level Measurements MX20L-01
|
| 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, 0° to 40°C (10 to 30 psia, 32° to 104°F) |
| Burst Pressure |
310 kPa or 18 m depth (45 psia or 60 ft depth) |
| Water Level Accuracy* |
Typical error: ±0.1% FS, 1.0 cm (0.03 ft) Water
Maximum error: ±0.2% FS, 2.0 cm (0.06 ft) Water |
| Raw Pressure Accuracy** |
±0.3% FS, 0.62 kPa (0.09 psi) Maximum error |
| Resolution |
<0.02 kPa Water (0.007 ft Water) |
| Pressure Response Time (90%)*** |
<1 second at a stable temperature; measurement accuracy also depends on temperature response time |
Pressure (Absolute) and Water Level Measurements MX20L-02
|
| 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: ±0.1% FS, 3.0 cm (0.1 ft) Water
Maximum error: ±0.2% FS, 6.0 cm (0.2 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; measurement accuracy also depends on temperature response time |
Pressure (Absolute) and Water Level Measurements MX20L-04
|
| 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: ±0.1% FS, 0.4 cm (0.013 ft) Water
Maximum error: ±0.2% FS, 0.8 cm (0.026 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; measurement accuracy also depends on temperature response time |
Temperature Measurements (All Models)
|
| Operation Range |
-20° to 50°C (-4° to 122°F) |
| Accuracy |
±0.2°C from 0° to 50°C (±0.36°F from 32° to 122°F) |
| Resolution |
0.10°C at 25°C (0.18°F at 77°F) |
| Response Time (90%) |
10 minutes in water (typical) |
| Stability (Drift) |
0.1°C per year (0.18°F per year) |
Logger
|
| Wireless Standard |
Bluetooth 5 LE |
| Transmission Range |
Approximately 30.5 m (100 ft) line-of-sight |
| Radio Power |
1mW (0 dBm) |
| Real-time Clock |
±1 minute per month 0° to 50°C (32° to 122°F) |
| Battery |
2/3 AA, 3.6 Volt lithium, factory-replaceable |
| Battery Life (typical use) |
3 years with 1-minute logging and Bluetooth always on
7 years with 1-minute logging and Bluetooth off and LED off
10 years with 5-minute logging and Bluetooth off and LED off |
| Battery Indication |
Battery status shown in HOBOconnect app (approximate) |
| Memory (Non-volatile) |
Approximately 400,000 sets of pressure and temperature measurements |
| Data Download Time (with Bluetooth 5+ devices) |
Full Memory: Approximately 3.5 minutes (1000,000 measurements < 1 minute) |
| Weight |
Approximately 154 g (5.43 oz) in air
Approximately 53.9 g (1.9 oz) in fresh water |
| Dimensions |
3.18 cm (1.25 inches) diameter, 15.24 cm (6.0 inches) length; mounting hole 6.3 mm (0.25 inches) diameter |
| Wetted Materials |
Polypropylene housing and lanyard; Viton and Buna-N O-rings; ceramic sensor in acetal end cap; stainless
steel screws suitable for saltwater |
| Logging Modes |
Fixed-interval (normal or statistics), burst or multiple intervals with up to 8 user-defined intervals and durations;
logging intervals from 1 second to 18 hours. Refer to the HOBOconnect User’s Guide for details. |
| Start Modes |
Immediate, next interval, date & time, button start (fob or app) |
| Stop Modes |
Memory full, never stop (overwrite oldest data), date & time, or after set logging period |
| Pause |
Pause and restart with HOBOconnect app |
| Alarms |
Log high- or low-alarm events; alarm status shown in HOBOconnect app |
| Environmental Rating |
IP68 |
