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Building Intelligence
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Mobile WiDAQ
The Mobile Wireless Data Acquisition Node (WiDAQ) is designed for distributed remote sensor data acquisition. The WiDAQ will store readings in the absence of a BiG computer. The Mobile WiDAQ features wireless connectivity, easy sensor connectivity and integrated RH and Temperature sensing.
Overview
General Description
The Mobile Wireless Data Acquisition Node (WiDAQ) is a high precision measurement device designed for distributed remote sensor data acquisition. The built-in 24-bit A/D converter and low noise high precision measurement circuitry facilitates data acquisition from a wide variety of sensors.
The Mobile WiDAQ communicates directly to the SMT Building Intelligence gateway or via a CAN coordinator when used in a hybrid wireless/wired configuration. This configuration offers several benefits over a wireless only system as wired nodes act as coordinators for wireless nodes allowing Mobile WiDAQs to conserve battery power.
Applications
- Building Science Research (short term)
- Restoration Monitoring
- Short term structure monitoring
- Targeted repair monitoring
See the Industrial WiDAQ datasheet for long term
monitoring and custom applications.
Features
- Four resistance channels capable of reading wide moisture content ranges and precision thermistors.
- Sensor inputs use compact audio jacks for easy connectivity.
- Resistance measurements can be performed in either positive or negative polarity for the purpose of negating half cell voltages in the monitored structure
- Each input is optically isolated from each other and earth ground preventing ground loops and external noise influences on the measurement.
- Built in Humeril HTM1735 Relative Humidity Sensor
- Integrated Temperature Sensor
- Auxiliary input for high precision microvolt measurement capable of reading thermocouples, heat flux sensors, displacement sensors and external relative humidity sensors.
- Communicates to SMT Building Intelligence Gateway (BiG) via USB WiKey or wired CAN clusterhead device.
- Easy accessible standard 9V battery.
Specs
| Communication Electrical/Performance | |
| Wireless | |
| Specification | IEEE 802.15.4 |
| Max Distance from coordinator |
30m (with included antenna, extended ranges up to 350m available with optional external antennas) |
| Max Nodes per | 32(depends on application density and acquisition speed) |
| Battery Life | 1000 hours (depends on sampling frequency) |
| Environmental | |
| Operating Temperature | 0° to 40°C / 32° to 104°F |
| Storage Temperature | -25° to 70°C / -13° to 158°F |
| Humidity | 5% to 90% RH non-condensing |
| Electrostatic Discharge (ESD) | 8kVdc air, 4 kVDC contact (exposed inputs) |
| Mechanical | |
| Standard Enclosure | |
| Dimensions | 147mm (L) x 89 mm (W) x 24mm(H) |
| Weight | 200g |
| Connections | |
| AUX Port | 5V, GND, Vin |
| MC/T1 | Resistance 100Ω to 1GΩ |
| MC/T2 | Resistance 100Ω to 1GΩ |
| Interface | |
| LEDs | Red/Green LEDs |
| Button | Power/Config Button |
| Measurement Electrical/Performance | |
| Internal Temperature | Input 2 |
| Sensor | Panasonic ERT-J1VS104FA Beta 4390K |
| Range | -40°C to +70°C |
| Resolution | 0.1°C |
| Accuracy | ±1°C |
| External Relative Humidity (AUX port) | Input 5 |
| Sensor | Humeril HTM2500 |
| Accuracy Range | 10-95% RH |
| Resolution | ±0.4% |
| Accuracy | ±3% |
| Internal Relative Humidity (Input 6) | Input 6 |
| Sensor | Humeril HTM1735 |
| Range | 10-95% RH |
| Resolution | ±0.4% |
| Accuracy | ±3% |
| Resistance | Input 17,18,19 and 20 |
| Range | 100Ω to 1KΩ |
| Resolution | 10Ω |
| Accuracy | ±5% |
| Range | 1KΩ to 10KΩ |
| Resolution | 100Ω |
| Accuracy | ±5% |
| Range | 10KΩ to 100KΩ |
| Resolution | 1KΩ |
| Accuracy | ±5% |
| Range | 100KΩ to 1MΩ |
| Resolution | 10KΩ |
| Accuracy | ±5% |
| Range | 1MΩ to 10MΩ |
| Resolution | 100KΩ |
| Accuracy | ±5% |
| Range | 10MΩ to 100MΩ |
| Resolution | 1MΩ |
| Accuracy | ±10% |
| Range | 100MΩ to 1GΩ |
| Resolution | 10MΩ |
| Accuracy | ±10% |
| Safety | |
| Safety Requirements | 9V SELV Seperated Extra Low Voltage |
Mounting
| Wall/Desk Mount Enclosure |
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Connectivity
Internal Sensors
Humidity and temperature sensors are integrated in the WiDAQ as well as battery voltage and wireless RSSI signal strength monitors.
Sensor Connectivity
See the sensor datasheets for specifications and installation options for the sensors listed below
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Plug sensor audio jacks into WiDAQ ports |
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PMM Sensor Plug PMM-02 sensor into MC/T 1 and/or MC/T 2 port. |
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MC/T 1 and MC/T 2 reference the audio jack as shown |
 Thermistor
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Thermistor 104JT-01 Plug the 104JT-01 Thermistor into the MC/T 1 and/or MC/T2 port |
 HTM2500 |
HTM2500-01 Relative Humidity Sensor Plug the HTM2500-01 Sensor into the AUX port. |
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Auxiliary Ports Plug 0-5V Sensors into AUX port |
Support
Button/LED Interface
| Action | Result |
| Turn ON/OFF | Press button twice |
| ON - Green Flashes | |
| OFF - Red Flashes | |
| Force Reading |
Press button once |
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Blink Green followed by communication status: Solid Green - Taking Reading Solid Red - Failed Communication |
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| State | Result |
| Powered ON |
Green - Taking Reading Red - Failued Communication |
| Powered OFF |
Press tutton once Red - Unit OFF |
BiG Input Sensor Configuration
| WiDAQ Input |
Input | Sensor Type |
| Internal Device Temperature | 2 | Temperature104JT (ohms) |
| External Aux sensor | 5 | Devault (uV) change to specific sensor type. |
| Internal RH | 6 | HTM2500 |
| RSSI | 15 | RSS (radio strength |
| Battery Voltage | 16 | Default (mV) |
| T1 | 17 | Temperature 104JT ohms |
| MC1 | 18 | Moisture (ohms) |
| T2 | 19 | Temperature 104JT 100 ohsm |
| MC2 | 20 | Moisture (ohms) |
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