Automatic Data Logger
BGK-Micro-40Pro series automatic data logger is a new product developed based on IoT technology. It supports three measurement modes: fixed-point, equal interval, and threshold trigger. Measurement data can be transmitted to the G-cloud platform (or BGKLogger) via 4G, LAN, or WIFI, or through RS485 local networking. It can be widely used for automated monitoring in various applications such as water conservancy, geological disasters, highways, bridges, slopes, and subways.
BGK-Micro-40Pro series automatic data logger is a new product developed based on IoT technology. It supports three measurement modes: fixed-point, equal interval, and threshold trigger. Measurement data can be transmitted to the G-cloud platform (or BGKLogger) via 4G, LAN, or WIFI, or through RS485 local networking. It can be widely used for automated monitoring in various applications such as water conservancy, geological disasters, highways, bridges, slopes, and subways. BGK-Micro-40Pro can achieve measurement on up to 40 channels, with each channel capable of acquiring data from various types of sensors including vibrating wire, differential resistance, standard voltage/current signals, resistance type, linear potentiometer type, and digital sensors. It can also measure a single tipping-bucket rain gauge.
BGK-Micro-40Pro-VW model automatic data logger can achieve measurement on up to 40 channels for vibrating wire instruments. The BGK-Micro-40Pro-R8/R16 models feature a 2U chassis design, suitable for standard equipment racks.
The supporting system software integrates user management, measurement management, data management, and communication management, providing support for automated measurement and data processing for engineering safety. The power supply, communication interfaces, and each measurement channel of the automatic data acquisition unit feature lightning protection, complying with national and relevant industry standards.
Product model | BGK-Micro-40Pro | BGK-Micro-40Pro-VW | BGK-Micro-40Pro-R |
Number of channels | 8, 16, 24, 32, 40 | 8, 16, 24, 32, 40 | 8, 16 |
Per channel measurement Time | Vibrating wire <3s, differential resistance <4s, other sensor types depend on sensor stabilization time | ||
Data storage Capacity | Standard storage capacity: 256 MB ROM (10,000 records) (expandable to 128 GB via USB and SD card) | ||
Communication interface | RS485, USB, RJ45, WIFI | ||
Communication mode | RS485, USB, LAN, WIFI, all 4G network types, Beidou satellite | ||
System power consumption | Standby <0.5 W, measurement <1 W (excluding 4G and sensors) | ||
Power supply system | Power supply mode: AC 220 V Battery: 12 V 12 Ah maintenance-free lead-acid battery | AC 220V | |
Clock accuracy | ±1 minute per month, time-synchronizable | ||
Temperature range | -30℃~+70℃ | ||
Storage temperature | -40℃ ~ +85℃ | ||
Protection level | IP65 | ||
Enclosure dimensions | 8-channel / 16-channel enclosure: (L) 380 mm × (W) 380 mm × (H) 210 mm 24-channel and above enclosure: (L) 600 mm × (W) 380 mm × (H) 210 mm | Standard rack 2U chassis / 437 mm in depth | |
Accessible sensor parameters
Signal type | Vibrating wire | Differential resistance | Standard analog quantity | Linear potentiometer |
Measuring range | Frequency: 400 Hz to 6000 Hz Temperature: -20°C to +80°C | Resistance ratio:L 0.8000 to 1.2000 Sum resistance: 0.02 Ω to 120.02 Ω | Voltage: -10 V to +10 V Current: -24 mA to +24 mA | 0 to 10 kΩ |
Accuracy | Frequency: 0.1 Hz Temperature: 0.5°C | Resistance ratio: 0.0001 Sum resistance: 0.02 Ω | Voltage: 0.02%FS Current: 0.05%FS | Resistance ratio: 0.0001 Resistance value: 10 Ω |
Resolution | Frequency: ±0.01 Hz Temperature: 0.1°C | Resistance ratio: 0.00001 Sum resistance: 0.001 Ω | Voltage <0.1 mV Current: 0.5 μA | Resistance ratio: 0.00001 Resistance value: 0.1 Ω |

