Analog Summing Amplifier | CTHsum
Multi channel summation transducers for inputs to isolated/Non-isolated output signalThe CTHsum summing amplifier (summation transducer) is used to sum voltage, current, energy or power sensing transmitters / transducers. It can be configured to operate with most transducers/transmitters and data loggers. Custom isolated inputs and outputs are possible, making scaling straightforward.
The CTHsum summing amplifier (summation transducer) is used to sum up to 4 analog signals to one summation output. Typically 2-4 analog signals are applied to the sum inputs, these can be a combination 4-20mA current loop signals or voltage signals, the summation output can be a 4-20mA or 4-12-20mA current loop signal or 0-10V bipolar. Optional custom inputs/outputs are available. A typical application is where a power or current summation is required from various three phase incomers/feeders, possibly at different locations within a plant, meaning that one analog signal can represent the total plant consumption whether kW, kVAr, kVA or even MW
The CTHsum summing amplifier / summation transducer is also used to sum voltages, currents from pressure, energy or power sensing transmitters/transducers. The summation inputs can be configured to operate with most transducers/transmitters and data loggers. Custom isolated inputs and outputs are possible to avoid ground loop interaction between.
Used to sum up to 4 input channels with 5V, 10V or 4-20mA analog signals to one output 4-20mA or 0-10Vdc. The CTHsum summation module is used where the summation of several transducer signals is required. Example: summing several 4-20mA kW (delete kW) output signals from temperature or power transducers situated at different locations within a plant, the CTHsum summation module will provide one sum signal output, equal to the total of the inputs
CTHsum Analog Summing Amplifier:
- Supports up-to 4 channels: Ex: 4x5V / 4x4-20mA inputs to single summation (total average) output
- Fast response time: 20uS
- Accuracy | Linearity: 0.2% | 0.1%
- Operating range: -20°C to +65°C
- Input impedance: 100kohm (custom possible)
- Output impedance: 100ohm (50 ohm optional)
- Input ranges: 0-20mA, 4-20mA, 0-1V, 0-2V, 0-5V, 0-10V or any voltage up to 50Vdc input, standard is 0-10Vdc
- Wide range of dc outputs: 0-100mV, 0-1V, 0-5V, 0-10V 0-20mA, 4-20mA
- Instrument Power: 12V, 24V, 48V, 110V and 125Vdc, 110/230Vac power
- Mounting Suppurt: Din rail | Wall
Applications:
- Optional input/output isolation for ground loop elimination
- Real-time current reporting with BMS and SCADA integration
- Useful for power metering, protection and control feedback
- Current aggregation in renewable energy system like, solar, battery or wind
- Industrial Automation and control systems
- Monitoring combined signals in HVAC
- Averaging of maximum 4 signals
| Ordering Info | ||||||||
|---|---|---|---|---|---|---|---|---|
| Description |
Model | No of inputs x Current|Voltage Range | Isolated / Non-isolated | Output | Power Supply | |||
| non-isolated 2x0-10Vdc Inputs to a sum 0-1Vdc output, 9-36Vdc | CTHsum/ | 2x10V / | - | 1 / | 24VDC | |||
| 3x4-20mA Loop Inputs to an non-isolated 0-5V loop output, 9-36Vdc | CTHsum/ | 3x4-20mA / | - | 5 / | 24VDC | |||
| 2x4-20mA Inputs to an isolated 0-10Vdc output, 9-36Vdc | CTHsum/ | 2x4-20mA / | ISO / | 10 / | 24VDC | |||
| 4x4-20mA Loop Inputs to an isolated 4-20mA loop output, 9-36Vdc | CTHsum/ | 4x4-20mA / | ISO / | 4-20mA / | 24VDC | |||
| 3x4-12-20mA Loop Inputs to an isolated 4-12-20mA loop output, 9-36Vdc | CTHsum/ | 3x4-20mA / | ISO / | 4-12-20mA / | 24VDC | |||
NOTE:
- While placing an order clarify input to a non-isolated/isolated output requirement as per application.
- No. of input channel selection customizable up-to 4, As per the customer requirement.
- Power supply (Instrument powered up) customizable between 9 to 36VDC.
- Includes Certificate of Conformance and Calibration
- CE marked including EMC and safety UL/CSA materials throughout
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