Many catastrophes can be avoided by using current sensors to monitor critical loads. When loads are powered by DC current it becomes more of a challenge than monitoring AC current. By far the simplest and most accurate method is to use an NK Technologies' DT or DS series current sensor. This Hall-based non-contact design requires no cutting or terminating of the conductor. Just pass the lead through the sensor, or snap the sensor in place over the lead, and the sensor is ready to go.
DT transducers produce a signal to the control system proportional to the current in the conductor, and the DS switches provide a contact, solid-state or electromechanical relay, which changes state at an adjustable current level.
NK Technologies can provide a cost-effective method to monitor DC powered loads. Compare features with competitive methods; we hope your choice will be the most accurate, reliable and responsive current sensing products available.
New Bi-Directional Sensor Output
Bi-Directional transducers produce a positive voltage signal proportional to the DC current circulating in the primary direction and a negative voltage proportional to the DC current in opposite direction.
- Monitoring battery charge or discharge current magnitude
- Indication of DC motor rotational direction
The photo to the right shows NK Technologies’ DC current sensors in a photovoltaic array combiner box application. The current produced by each PV string provides the facilities manager with the data required to maintain the collectors and keep the system working at the optimal level.
Common DC loads
Measure output, duration and operation
- DC Powered Saws
Monitor for proper operation
- Overhead Cranes
Interlock drive with auxiliary equipment
- HV Switch gear
Fail-safe magnetic interlock
Monitor process conditions
- Water Purification
Positive indication of brake operation
Drive motor field loss protection
- Battery Charging
Proportional signal to charge or discharge current
- Photovoltaic Arrays
Indicates proper output and connection integrity