The HKC-BS5/BR5 series open-loop Hall effect current sensor is based on the Hall effect
measurement principle, providing electrical isolation between the
primary and secondary circuits. It accurately measures DC, AC, or
pulse currents. The product features a detachable design for easy
installation and offers high accuracy. It is widely used in welding
power supplies, battery-powered applications, AC variable speed
drives, servo motor drives, DC motor drive static converters,
switching power supplies (SMPS), and UPS uninterruptible power
supplies.
Features
Measuring principle – open-loop Hall effect
Measurement type – DC / AC / pulse
Isolation – electrical isolation between primary and secondary
Mounting method – detachable
Accuracy – high accuracy
Easy installation
Applications:
- Power supplies for welding applications
- Battery supplied applications
- AC variable speed drives and servo motor drives
- Static converters for DC motor drives
- Switched mode power supplies (SMPS)
- Uninterrupted power supplies (UPS)
Directions for use
- When the current will be measured goes through a sensor, the
voltage will be measured at the output end.(Note: The false wiring
may result in the damage of the sensor)
- Custom design in the different rated input current and the output
voltage are available.
ELECTRICAL DATA:
| HKC50BS5/BR5 HKC100BS5/BR5 HKC200BS5/BR5 HKC300BS5/BR5
HKC400BS5/BR5 HKC500BS5/BR HKC600BS5/BR5 | |
| Rated input current | 50 | 100 | 200 | 300 | 400 | 500 | 600 | A |
| Test current range | 100 | 200 | 400 | 600 | 800 | 900 | 900 | A |
| Rated output voltage | 0.625±1% | V |
| Zero residual voltage | 2.5±0.5% | V |
| Supply voltage | +5±5%/+12±5% | V |
| Offset voltage | ≤±25 | mV |
| Magnetic offset voltage | ≤±20 | ≤±15 | mV |
| Offset voltage Drift | ≤±2.0 | ≤±1 | mV/℃ |
| Linearity | ≤±1 | %FS |
| Response time | ≤3 | μS |
| Insulation voltage | 50HZ,1min,2.5 | KV |
| Operating Temperature | -40～+85 | ℃ |
| Storage Temperature | -40～+105 | ℃ |
Notes: Product specifications can be customized
FAQ
Q: What is the working principle of an open-loop Hall effect
current sensor?
A: The open-loop Hall effect current sensor works based on the Hall
effect principle. The magnetic field generated by the measured
current is detected by the Hall element, which outputs a voltage
signal proportional to the magnetic field strength. Electrical
isolation between the primary and secondary is achieved through
magnetic circuit coupling, requiring no direct electrical
connection, ensuring safety and reliability.
Q: What is the difference between open-loop and closed-loop Hall
current sensors?
A: Open-loop sensors directly amplify and output the Hall voltage.
They offer simple structure, lower cost, and fast response,
suitable for general industrial measurement. Closed-loop sensors
use a compensation winding to generate an opposing magnetic field,
offering higher accuracy and lower temperature drift. The HKC-BS5/BR5 series open-loop design offers better cost-performance, suitable for most
industrial applications.
Q: What are the advantages of the detachable design?
A: The detachable design facilitates sensor installation,
maintenance, and replacement. No complex tools are required for
assembly and disassembly, improving on-site installation efficiency
and maintenance convenience.
