General Purpose
Supports a wide range of available sensors including Vibrating Wire, MEMs, SDI-12, and 4-20mA
General Purpose Datalogger
The Canary Systems® MLDAQ-W-50 is a powerful, rugged and reliable wireless data acquisition station for general purpose use.
The MLDAQ-W-50 supports measurements from a wide range of available sensors, including vibrating wire (with optional vibrating wire interface), load cells, micro-electro-mechanical (MEMs) sensors, flowmeters, linear potentiometers, thermocouples, thermistors, SDI-12 sensors, 4-20mA sensors, weather instruments such as wind sets, rain gages, temperature and humidity.
At the heart of the system is a CR6 MCU featuring very flexible programming and communications, along with large internal data storage and a Vibrating Wire Interface. It provides for reading all commercially available vibrating wire instrumentation including piezometers, strain gages, crack/displacement meters, in-place inclinometers and load cells. Expansion of the number of measurement channels available per station with a Canary Systems® MiniMux.
An optional HART interface can be installed to gather data from HART enabled industrial process measurement and control applications.
Battery & Enclosure
The large 50AHr battery supports applications requiring additional high power consumption communication or measurement peripherals. Systems are supplied with AC powered battery chargers as well as solar panels.
The MLDAQ-W-50 general purpose datalogger is designed from the outset for operation in demanding environments. This includes a NEMA 4/12 rated painted steel enclosure. Mil-spec connectors and industrial cable glands additionally protect against harsh conditions and the elements.
Optional uni-strut mounting kits are available to provide for pipe mounting of the enclosures. The enclosures are easily wall-mounted using the integrated enclosure mounting tabs.
The MLDAQ-W-50 comes with a 1-year limited warranty
Extensible
Optional HART interface and multiplexers for channel extension available
Easy Configuration
Easy channel configuration and system programming using our MultiLogger® software
Specifications
| MLDAQ-W-50A | MLDAQ-W-50S | |
|---|---|---|
| MCU | CR6 | CR6 |
| Enclosure Type | Steel | Steel |
| Size (LxWxH, in) | 24x20x10 | 24x20x10 |
| Weight (lbs) | 98 | 98 |
| Battery | 50AHr | 50AHr |
| Solar | – | 40W |
| Receiving | RS-232 WiFi | RS-232 WiFi |
| Transmitting | No | No |
| MLTB-OVP | Yes | Yes |
| Options | HART interface, MiniMux (up to 2) | HART interface, MiniMux (up to 2) |
| MCU | Enclosure Type | Size (LxWxH, in) | Weight | Battery | Solar | Receiving | Transmitting | MLTB-OVP | Options | |
|---|---|---|---|---|---|---|---|---|---|---|
| MLDAQ-W-50A | CR6 | Steel | 24x20x10 | 98 | 50AHr | – | RS-232 WiFi | No | Yes | HART interface, MiniMux (up to 2) |
| MLDAQ-W-50S | CR6 | Steel | 24x20x10 | 98 | 50AHr | 40W | RS-232 WiFi | No | Yes | HART interface, MiniMux (up to 2) |
Datalogger
CR6 | |
| Universal Channels | 12 individually configured inputs for analog or digital functions |
| Analog Resolution | 24 bits |
| Input Voltage Range | ±5 V |
| Pulse Count Channels | 16 (C1 to P4 and U1 to U12) |
| Excitation Channels | 12 |
| Digital Ports | 16 |
| Communications | Ethernet, USB, CS I/O, RS-232, CPI, RS-485, SDI-12 |
| Power | 16–32 VDC (CHG) 10–16 VDC (BAT) |
| Power Consumption | <1 mA (quiescent) ~3 mA (active, no communications) ~67 mA (active, communication) |
| Data Memory | 4 MB SRAM |
| Program Memory | 72 MB flash |
| OS Memory | 128 MB flash |
Physical & Electical
Physical | |
| Operating Temperature | -40° to +70° C -40 to +160° F |
Solar Panel | |
| Output Voltage | 18VDC maximum (loaded) |
| Output Power | 2.25A maximum (40W) |
AC Adaptor | |
| Output Voltage | 18VDC |
| Output Power | 1A maximum |
System Power | |
| Battery | 12V 50AHr sealed lead-acid |
Wireless / Radio Interface
SGX 5150 | |
| Power | 9–30 VDC |
| Power Consumption | 1.9 W (quiescent) maximum 5.5 W (transmitting) |
| Ports | RJ45, RS-232, USB |
| Speed | Up to 921 kbps |
| Interface | 10/100 Mbps Ethernet port (RJ45) |
| Standards | WPA/WPA2 pre-shared key (PSK) or IEEE 802.1X, AES-CCMP |
| Range (line-of-sight) | 1.31km (1 mile) with directional antenna |
Module
MLTB-OVP | |
| Voltage Range | 9-16VDC (unregulated), 12VDC nominal |
| Maximum Current | 1100mA (per circuit) |
| Analog Signals | 6 |
| 5V Control Signal TVS Clamp | 6.8 volts |
| Analog Signal TVS Clamp | 16.7V |
| Gas Discharge Tube DC Spark | Over 90V |
| Impulse Discharge Current | 5.0Ka (8/20uSec) |
| AC Discharge (nominal) | 5A |
| Analog Signal Series Inductance | 10μH ±20% |
| Analog Signal Series Resistance | 35mΩ ±20%. |
| Analog Signal Current | 3.8A maximum |
Options
MiniMux Multiplexer | |
| Channels | (16) 4-channel or (32) 2-channel (switch selectable) |
| Control Inputs | 2 |
| Control Input Range | 5–16V |
| Power | 10–16VDC |
| Power Consumption (Quiescent) | <0.1µA |
| Power Consumption (Active) | ~42mA |
| Relay Contacts | Gold clad silver alloy |
| Contact Resistance | 75mΩ |
| Contact Isolation | 1500V |
| Coil Resistance | 1028Ω |
| Relay Operate Time | ~2ms |
| Relay Release Time | ~1ms |
| Relay Max Voltage | 125VAC, 110VDC |
| Relay Max Switching | 2A |
| Relay Life (Minimum) | 108 Cycles |
| Transient Protection Threshold | 75V |
| Transient Current Limit | 1kA |
News & Announcements
Canary Systems Featured in Engineering and Mining JournalMay 18, 2026 - 12:06 pm
Geotechnical Radar Monitoring CourseApril 23, 2026 - 10:25 am
See you at SME 2026!February 12, 2026 - 4:43 pm
Advisory Board Press ReleaseFebruary 2, 2026 - 1:04 pm
Slope Stability 2025 Workshop Recap & PresentationDecember 16, 2025 - 4:43 pm