# SDAQ-204 Programmable Smart DAQ with 4-ch Sound and Vibration Input, 24-bit, 128kS/s, 4-ch DI/O ![Exterior view of a black ADLINK industrial device with multiple ports and a mesh grille (no visible text or symbols on main body)](.sdaq-204-20230515/844ea77fa0619ee491deee62a3c6256f177155fc271cd0d20b4fb8fb0e236166.jpg) # Features • Standalone Ethernet DAQ enabling edge computing • RESTful API for periodic machine condition polling • Supports a C/C#/C++/Python/LabView API for continuous data streaming • Built-in web console for easy configuration and use as a portable DAQ • Supports iApp deployment for data analytics and efficiency at the edge • Supports IEPE 4mA excitation on each analog input to drive an accelerometer for sound and vibration measurement • Two 1Gb Ethernet ports for daisy chaining to multiple devices # Introduction ADLINK’s SDAQ-204 ultra-compact edge DAQ based on ARM Cortex-A9 processors and featuring built-in, four-channel, 24-bit, highresolution analog input, can function as a standalone device without a host PC and is ideally suited for 24-hour vibration monitoring of rotating machinery and equipment. The SDAQ-204 delivers high-precision static and dynamic measurement performance. The 24-bit Sigma-Delta ADC supports antialiasing filtering, suppressing modulation and signal out-of-band noise and providing usable signal bandwidth at the Nyquist rate, making it ideal for high dynamic range signal measurement in machine condition monitoring applications. Through Gb Ethernet communication, data can be transmitted to a central hub quickly. Dual Ethernet ports enable daisy-chain connections that reduce the cost of network equipment and extend the communication distance. # Monitoring of Distributed Machines Monitoring the condition of machines in the field with compressors, vacuum pumps, motors, bearings, and generators is key to keeping factories up and running smoothy. Traditionally, operators would visit remote machines periodically to perform inspections. However, by the time an abnormality was detected, the machine may have already suffered extensive damage. In order to provide constant machine monitoring, a DAQ system composed of an embedded system plus a DAQ card can be deployed at each remote machine site. However, when there are many remote machines spread out geographically, the deployment of DAQ systems at each site becomes prohibitive. The SDAQ-204 is a standalone Ethernet DAQ system that is designed specifically to perform the tasks of a DAQ system without requiring a complicated embedded system. # Data Filtering at the Edge The signals acquired by sensors are raw data that must be filtered and converted into usable data such as FFT, voltage, g-type array, or OA values. The SDAQ-204 standalone DAQ system can be deployed at each field site and perform the task of filtering raw data that was traditionally done by an embedded system. By converting and transmitting filtered, size-reduced data from the edge to a central hub, network load and processing demands on backend servers are reduced dramatically. # iApp at the Edge The SDAQ-204 offers flexible support options for custom filtering algorithms written in Python. These valuable and confidential algorithms can be deployed and executed at the device as an iApp through iApp Creator contained in the DAQPilot software package. The SDAQ-204 enables the migration of iApp, user-defined filtering algorithms, to the edge in a cost-effective manner. # Built-in Web Console The SDAQ-204's built-in web console allows configuration via web browser to make it easy to get started with machine condition monitoring and eliminate the need for application specific programming. Settings for relevant parameters and data types are presented in an intuitive dashboard format. The SDAQ-204 makes it quick and easy to set up a machine condition monitoring environment. # Software Development Kit ADLINK provides rich data connectivity to assist users with integrating the SDAQ-204 into their system. • Streaming SDK (with C/C#/C++/Python/LabView sample code) • RESTful API # Management Utility ADLINK provides a powerful utility for users to manage devices, create iApps, and deploy them to devices for edge data analytics. For more information, refer to the DAQPilot software package. # Ordering Information • SDAQ-204 Programmable Smart DAQ with 4-ch AI, 24-bit, 128kS/s, 4-ch DI/O # Optional Accessories • AC-DC ADAPTER 40W MEANWELL, GST40A24-AD, Input: 90-264VAC/40W, Output: 24VDC/1.67A • ICP Accelerometer IMI\_603C01 ICP Accelerometer IMI\_603C01, 100mV/g, 0.5 to 10kHz, 2-pin conn. w/ 10-ft cable and magnetic mount # Product Illustration ![ADLINK\nDLD\n0\n1\n2\n3\nPWR\nD.GND\nD.GND\nSYS\nA.GND\nA.GND\nV/D\nUSB\nAI 0\nAI 1\nAI 2\nAI 3\nSDAQ-204\n9-30 V+\nVDC V-\nRESET\nFn](.sdaq-204-20230515/d8f364838c20d8af5460eb07fbdfb264d1ee26a274d6b04ceee70c3fd629e4c0.jpg) # Specifications
Model NameSDAQ-204
System Specifications
Ethernet (1Gb)2x RJ45 Ethernet ports (1 IP, Ethernet cascade supported)
MCUARM Cortex A9 1.0 GHz
NAND Flash (eMMC)32GB
MemoryDDR3 RAM 1GB
USB2x USB 2.0 (for Wi-Fi dongle only)
Power Supply9 to 30V DC power input
Power ConsumptionMax. 8.8 W
Isolation1.5kV
Communication InterfacesWeb Console / RESTful API / Streaming SDK / Modbus TCP Server
Digital Temperature Sensor-50°C to 150°C (with 3 meter cable)
Analog Input
Number of Channels4 (simultaneous, BNC type)
Resolution24-bit
Maximum Sampling Rate128kS/s and can be adjusted to 1kS, 2 kS, 4kS, 8kS, 16kS, 32kS, 64kS
Input Range (Voltage)± 10 V, ± 1.25 V
Input CouplingDC/AC
IEPE4mA, compliance voltage +24V
Sensor TypeIEPE sensor (vibration detection)
Offset Error± 0.1mV
Gain Error± 0.05% of FSR
-3dB Bandwidth0.43 x sampling rate
Flatness± 0.01 dB (10Hz to 10kHz)
AC Cut-off Frequency (-3dB)0.4Hz
AC Cut-off Frequency (-0.1dB)2.4Hz
Specifications
Trigger SourcesSoftware, digital trigger, analog trigger, built-in button trigger (under analog or digital trigger mode)
Overvoltage Protection±50V
Input Impedance200 kΩ
Crosstalk-100dB
Dynamic Range-95dB
THD (1kHz)-100 dB
THD+N (1kHz)-95 dB
Isolated Digital I/O
Number of I/O4-ch DI/O (configurable)
Digital TypeTTL input: 0-5V for DI / Open drain for DO
Input Logic LevelLogic low: VIL = 0.8 V max. / IIL = 0.2 mA max. / Logic high: VIH = 2.0 V min. / IIH = 0.2 mA max.
Overvoltage Protection±50V
Supported ModesStatic digital input/outputTachometer support (DIO 0)External digital trigger in
Mechanical
Dimensions110.5 (L) x 40 (W) x 126.5 (H) mm
Connectors4x BNC + 2x 6-pin spring-type terminal block
Front Panel LEDs4
HousingMetal, IP30
MountingDIN rail kit (wall mount kit optional)
Environmental
Operating Temperature0°C to 50°C (32°F to 122°F)
Storage Temperature-20°C to 70°C (-4°F to 158°F)
Humidityapprox. 95% @ 40°C (non-condensing)
VibrationOperating: 5 Grms, 5-500 Hz, 3 axes
ShockOperating: 100 G, half sine 11 ms duration
EMCEN61000-6-4/EN61000-6-2
EMIFCC Part 15B Class A, CISPR 32
EMSIEC 61000-4-2 ESD: Contact: 4 kV; Air: 8 kVIEC 61000-4-3 RS: 80 MHz to 1.0 GHz, 10 V/mIEC 61000-4-4 EFT: Power: 2 kV; Signal 2 kVIEC 61000-4-5 Surge: Power 0.5 kV; Signal 1 kVIEC 61000-4-6 CS: 0.15 MHz to 80 MHz, 10 VIEC 61000-4-8 PFMF
SafetyIEC 61010-1
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