1. Design philosophy: I think innovation comes from the needs of the field.
I have seen many plants stop machines just to install a sensor. Customers need operation and real time monitoring for equipment such, as air compressors and HVAC systems. Traditional current measurement solutions often need downtime for installation. The Heyi Electric HK-816 open type current transformer uses a clip on current transformer design. The clip, on design lets you install the Heyi Electric HK-816 type transformer without stopping the critical equipment. The Heyi Electric HK-816 open type current transformer gives precise measurement for online monitoring. The Heyi Electric HK-816 open type current transformer also helps you manage core equipment effectively.

1.1 The open-close structure makes installation possible. The open-close structure lets you install without a power outage.
HK-816 uses a type transformer design. HK-816 can be attached to live cables. HK-816 does not need any line to be disconnected during installation. I have seen the type transformer work without stopping service. The installation characteristics of the clip on current transformer of HK-816 show value in places like air compression stations and air conditioning mainframes. In those places downtime is not allowed. The clip, on transformer of HK-816 provides zero installation interference and instant monitoring.
1.2 Compact design fits into spaces
I found the product easy to install because of the structure. The compact structure lets the product fit, into power distribution cabinets that have space. The compact structure also lets the product sit in cable trays. The product uses an easy‑to‑use buckle design. The buckle design makes the installation process simple and fast. The buckle design cuts the time I need for installation. The product reduces difficulties. The product lowers time costs in environments.
2. Core performance: Providing precise data support for scenario-based monitoring
In my experience the HK-816 uses the core technology of core transformers. The HK-816 provides accurate measurement data in many industrial scenarios. The HK-816 provides a basis, for equipment management decisions.

2.1 Accurate precise measurement makes the data reliable. The measurement keeps the data reliable.
When I look at the product I see that the product uses a core transformer and a precision signal processing circuit. The product allows measurements that stay within plus or minus 1.5 percent of the rated current covering the range from 5 percent, to 120 percent. The high precision feature of the product makes sure the key numbers such, as the load rate of air compressors and the operating current of water pumps are real and accurate.
2.2 The strong ability to adapt to the environment keeps the operation stable. The strong ability to adapt to the environment makes the system run smoothly.
The device can take voltage from 10 to 28 V DC. Works, from –10 °C to 50 °C. I have used the device in a hot air compressor room and, in a basement pump room. The device still gave accurate signal output for measurement.
3. Scenario application: delving into every aspect of key equipment monitoring
I have used the HK-816. I see that the HK-816 has performance and flexible ways to install. I also see that the HK-816 gives value in the important situations.

3.1 Energy efficiency monitoring and optimization of air compressor system
I find that in air compressor work we measure the motor current all the time and we measure the motor current accurately. The precise measurement lets us calculate the power away and lets us watch the load changes. When I look at the data I see that the data give a base to find equipment anomalies. The data also let us change strategies. Changing operational strategies helps raise energy efficiency. Raising energy efficiency also helps plan maintenance.
3.2 Fine management of energy consumption in heating, ventilation, and air conditioning systems
In the field of heating, ventilation and air conditioning (HVAC) I have found that HK-816 provides real-time monitoring, for equipment such, as chillers, water pumps and fans. HK‑816 uses precise measurement data to enable system energy efficiency analysis, fault warning and energy-saving optimization. HK-816 improves energy management.
3.3 Intelligent protection and early warning for key equipment
The monitoring unit is reliable. The monitoring unit provides an output signal that can be connected directly to the control system. The monitoring unit detects operating conditions such, as overload and three phase imbalance. When the monitoring unit detects operating conditions the control system triggers actions immediately. The protective actions keep the equipment operating safely.
4. Professional guarantee: Trustworthy industrial measurement solutions
I have seen the HK-816 product go through calibration and testing. I have seen the calibration and testing make the HK-816 product reliable, over a time and keep the measurements consistent. I have seen Heyi Electric use its design and manufacturing skill to give users precise measurement solutions that're trustworthy and precise.
By combining the installation convenience of open open type current transformers with the measurement accuracy of toroidal core current transformers, the HK-816 successfully achieves precise measurement and intelligent monitoring of critical equipment without machine downtime, making it an indispensable and reliable partner in the field of industrial energy management.
Compay: WENZHOU HEYI ELECTRICAL CO.,LTD
Brand: HEYI/ASCT
Contact: Bethy
E-mail: heyi@heyiele.com
Tel: 86-13968747975