DH3816N multi-channel static data acquisition system (36/72 points per unit) for strain, stress, force and displacement, via Ethernet or Wi-Fi.
Overview
The DH3816N is a fully intelligent multi-channel static data acquisition system in an aluminium alloy chassis with modular plug-in boards; 36 or 72 measuring points per unit, communicating with a PC or mobile app over Ethernet or Wi-Fi. It scans slowly varying quantities such as strain, stress, force and displacement. It supports full-bridge, half-bridge, three-wire quarter-bridge and common-compensation quarter-bridge wiring, with 2 VDC excitation, 60000 strain range and 0.1 resolution; each 4-channel module allows one channel to be sampled dynamically at up to 200 Hz, covering both static tests and short-term dynamic monitoring. Heat-resistant angled terminals accept soldered wires without deformation. Widely used in model tests and structural stress measurements in universities, research institutes, site inspection and product R&D for bridges, buildings, machinery and aerospace.
Applications
• Road and highway engineering laboratory testing
• Construction material quality control and acceptance
• Research and teaching laboratories
• Third-party inspection and certification bodies
Features
• Robust construction suitable for both laboratory and field use
• Compliant with relevant Chinese and international testing standards
• Complete with calibration certificate and operation manual
Technical Specifications
| Item | Specification |
| Channels | 36 or 72 points/unit (modular boards) |
| Bridge | full / half / three-wire quarter / common-compensation quarter |
| Gauge resistance | 120Ω or 350Ω |
| Excitation | 2 VDC |
| Strain range | ±60000 με |
| Strain resolution | 0.1 με |
| Strain error | ±(0.5% rdg ±3 με) |
| Voltage range | ±60 mV / 0–2 V switchable |
| Voltage resolution | 5 μV |
| Voltage error | ≤0.5% F.S. |
| Max dynamic rate | 200 Hz/ch (one per module) |
| Interface | 100Mbps Ethernet + Wi-Fi |
| Wireless range | approx. 200 m (line of sight) |
| Wiring | heat-resistant angled solder terminals |
| Applications | model tests, structural stress, bridge/building/machinery static tests |
Standards
GB/T, JTG, ASTM
Standard Delivery
• Main instrument unit
• Power cable
• Operation manual
• Dedicated analysis software (PC)
• Spare parts kit
FAQ
Q1: What standards does the DH3816N Static Strain Data Acquisition System comply with?
A1: The DH3816N Static Strain Data Acquisition System is designed and manufactured in accordance with relevant Chinese national (GB) and transport industry (JTG) standards, as well as applicable ASTM and AASHTO international standards. A calibration certificate traceable to national standards is provided with each unit.
Q2: How often should the DH3816N Static Strain Data Acquisition System be calibrated?
A2: We recommend annual calibration by authorized technicians or by iRoad after-sales service center. For high-frequency laboratory use, semi-annual calibration is advised. The instrument is supplied with a factory calibration certificate.
Q3: What is the lead time and do you provide training?
A3: Standard units are usually shipped within 7-15 working days. Custom configurations may require 20-30 days. iRoad provides on-site installation, commissioning and operator training for major equipment; remote video guidance is available for standard laboratory instruments.
Overview
The DH3816N is a fully intelligent multi-channel static data acquisition system in an aluminium alloy chassis with modular plug-in boards; 36 or 72 measuring points per unit, communicating with a PC or mobile app over Ethernet or Wi-Fi. It scans slowly varying quantities such as strain, stress, force and displacement. It supports full-bridge, half-bridge, three-wire quarter-bridge and common-compensation quarter-bridge wiring, with 2 VDC excitation, 60000 strain range and 0.1 resolution; each 4-channel module allows one channel to be sampled dynamically at up to 200 Hz, covering both static tests and short-term dynamic monitoring. Heat-resistant angled terminals accept soldered wires without deformation. Widely used in model tests and structural stress measurements in universities, research institutes, site inspection and product R&D for bridges, buildings, machinery and aerospace.
Applications
• Road and highway engineering laboratory testing
• Construction material quality control and acceptance
• Research and teaching laboratories
• Third-party inspection and certification bodies
Features
• Robust construction suitable for both laboratory and field use
• Compliant with relevant Chinese and international testing standards
• Complete with calibration certificate and operation manual
Technical Specifications
| Item | Specification |
| Channels | 36 or 72 points/unit (modular boards) |
| Bridge | full / half / three-wire quarter / common-compensation quarter |
| Gauge resistance | 120Ω or 350Ω |
| Excitation | 2 VDC |
| Strain range | ±60000 με |
| Strain resolution | 0.1 με |
| Strain error | ±(0.5% rdg ±3 με) |
| Voltage range | ±60 mV / 0–2 V switchable |
| Voltage resolution | 5 μV |
| Voltage error | ≤0.5% F.S. |
| Max dynamic rate | 200 Hz/ch (one per module) |
| Interface | 100Mbps Ethernet + Wi-Fi |
| Wireless range | approx. 200 m (line of sight) |
| Wiring | heat-resistant angled solder terminals |
| Applications | model tests, structural stress, bridge/building/machinery static tests |
Standards
GB/T, JTG, ASTM
Standard Delivery
• Main instrument unit
• Power cable
• Operation manual
• Dedicated analysis software (PC)
• Spare parts kit
FAQ
Q1: What standards does the DH3816N Static Strain Data Acquisition System comply with?
A1: The DH3816N Static Strain Data Acquisition System is designed and manufactured in accordance with relevant Chinese national (GB) and transport industry (JTG) standards, as well as applicable ASTM and AASHTO international standards. A calibration certificate traceable to national standards is provided with each unit.
Q2: How often should the DH3816N Static Strain Data Acquisition System be calibrated?
A2: We recommend annual calibration by authorized technicians or by iRoad after-sales service center. For high-frequency laboratory use, semi-annual calibration is advised. The instrument is supplied with a factory calibration certificate.
Q3: What is the lead time and do you provide training?
A3: Standard units are usually shipped within 7-15 working days. Custom configurations may require 20-30 days. iRoad provides on-site installation, commissioning and operator training for major equipment; remote video guidance is available for standard laboratory instruments.
