Key Features:
Summation of up to four signals: Handles 5V, 10V, or 4-20mA analog signals.
Wide compatibility: Configurable for most transducers, transmitters, and data loggers.
Fast response time: 20 microseconds, making it ideal for real-time applications such as metering, protection, and control feedback.
Accuracy: 0.2% accuracy and 0.1% linearity for precise signal summation.
Isolated input/output options: Prevents ground loop interaction and enhances system reliability with optional input/output isolation.
Wide input/output range: Supports input ranges from 0-20mA, 4-20mA, 0-1V, 0-10V, and more. Output options include 0-10V, 4-20mA, and others.
Operating temperature: Operates in harsh environments with a range from -20°C to +65°C.
Multiple power supply options: 12V, 24V, 48V, 110V, and 125Vdc, 110/230Vac options available.
CE marked, UL/CSA compliant materials ensure durability and adherence to safety standards.
Typical Applications:
Power Summation: Combine multiple kW, kVAr, or kVA signals from different feeders or locations into a single output.
Current Summation: Aggregate current signals from multiple transducers located in various parts of a plant, such as 4-20mA current loops.
Energy Summation: Monitor total plant energy consumption by summing energy or power signals from multiple incomers or devices.
Feedback and Control: Integrate feedback from voltage or current sensors for control systems requiring signal aggregation.
Technical Specifications:
| Parameter | Details |
| Summing Inputs | 4 channels for 5V, 10V, or 4-20mA signals |
| Summation Output | Options for 0-10Vdc, 4-20mA, or 0-1Vdc |
| Accuracy | 0.20% |
| Linearity | 0.10% |
| Response Time | 20µS |
| Input Impedance | 100kΩ (customizable) |
| Output Impedance | 100Ω (50Ω optional) |
| Operating Range | -20°C to +65°C |
| Input Ranges | 0-20mA, 4-20mA, 0-10V, or custom up to 50Vdc |
| Output Options | 0-100mV, 0-10V, 4-20mA, or other customizable outputs |
| Power Supply | 12V, 24V, 48V, 110V, 125Vdc, or 110/230Vac |
| Mounting | DIN rail or wall mounting |
| Isolation Options | Available for ground loop elimination |
Model Options:
| Model | Description |
| CTHsum/2x10V/1/9-36Vdc | Non-isolated with 2×0-10Vdc inputs to 0-1Vdc output, 9-36Vdc powered |
| CTHsum/2×4-20/ISO/10/9-36Vdc | Isolated 2×4-20mA inputs to 0-10Vdc output, 9-36Vdc powered |
| CTHsum/2×4-20/ISO/4-20/9-36Vdc | Isolated 2×4-20mA inputs to 4-20mA loop output, 9-36Vdc powered |
| CTHsum/4-20/ISO/4-20/10/9-36Vdc | Isolated 4-20mA loop inputs summed to 0-10Vdc output, 9-36Vdc powered |
| CTHsum/3×4-20/10/9-36Vdc | Non-isolated 3×4-20mA inputs to 0-10Vdc output, 9-36Vdc powered |
Benefits:
Simplifies system integration by providing a single output from multiple inputs.
Customizable input/output configurations to suit specific application needs.
Ground loop elimination through optional isolation, ensuring reliable and accurate performance in industrial environments.
Compact design enables easy installation in both DIN rail and wall-mounted configurations.
The CTHsum summing amplifier is ideal for industrial applications where multiple analog signals need to be combined into one output. Whether it’s power, current, or energy signals, this robust and flexible solution will streamline data collection and control processes in your system.