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- Wide Measurement Range: Supports Pt100 sensors across a full span of –200°C to +850°C, covering cryogenic to high-temperature industrial processes.
- Sensor Type: Compatible with Pt100 RTDs with a temperature coefficient of α = 0.00385 Ω/Ω/°C, ensuring standardized response characteristics.
- High Accuracy: Typical measurement accuracy of ±0.3°C, suitable for precision monitoring and control applications.
- High Resolution: Measurement resolution of 0.1°C, enabling fine-grained temperature readings.
- Input Configuration: Supports 2-, 3-, and 4-wire Pt100 connections, allowing flexibility in wiring and compensation for lead resistance.
- Excitation Current: Operates with a 0.25 mA sensor excitation current, minimizing self-heating effects in the RTD element.
- Linearized Output: Internal linearization ensures that the output corresponds directly to temperature values, simplifying downstream data processing.
- Input Isolation: Galvanically isolated input prevents ground loops and enhances measurement integrity in electrically noisy environments.
- High Common-Mode Rejection: 100 dB CMR (Common Mode Rejection) provides excellent immunity to electrical interference and noise coupling.
- Digital Communication: RS232 ASCII output for direct serial communication with PCs, PLCs, or other digital systems.
- Compact and Robust Design: Engineered for integration into control panels, instrumentation racks, or standalone measurement setups.
- Sensor Type: Compatible with Pt100 RTDs with a temperature coefficient of α = 0.00385 Ω/Ω/°C, ensuring standardized response characteristics.
- High Accuracy: Typical measurement accuracy of ±0.3°C, suitable for precision monitoring and control applications.
- High Resolution: Measurement resolution of 0.1°C, enabling fine-grained temperature readings.
- Input Configuration: Supports 2-, 3-, and 4-wire Pt100 connections, allowing flexibility in wiring and compensation for lead resistance.
- Excitation Current: Operates with a 0.25 mA sensor excitation current, minimizing self-heating effects in the RTD element.
- Linearized Output: Internal linearization ensures that the output corresponds directly to temperature values, simplifying downstream data processing.
- Input Isolation: Galvanically isolated input prevents ground loops and enhances measurement integrity in electrically noisy environments.
- High Common-Mode Rejection: 100 dB CMR (Common Mode Rejection) provides excellent immunity to electrical interference and noise coupling.
- Digital Communication: RS232 ASCII output for direct serial communication with PCs, PLCs, or other digital systems.
- Compact and Robust Design: Engineered for integration into control panels, instrumentation racks, or standalone measurement setups.
1. Product Overview
Product Name: Temperatur Pt100 Transmitter
Model: C1411
Series: C14xx Temperature Measurement Series
Article Number: C1411
Manufacturer: [Manufacturer not specified in source content; typically supplied by the vendor or OEM associated with the C14xx instrumentation line]
The C1411 is a precision temperature measurement and signal transmission module designed for industrial and laboratory applications requiring accurate Pt100 resistance temperature detector (RTD) input handling. It supports a wide temperature measurement range from –200°C to +850°C, features galvanically isolated input, and provides a digital RS232 ASCII output for direct integration with control systems, data loggers, or supervisory software. The device is optimized for high accuracy, linearized output, and robust noise immunity, making it suitable for demanding environments where precise temperature monitoring and reliable data communication are essential.
2. Key Features
- Wide Measurement Range: Supports Pt100 sensors across a full span of –200°C to +850°C, covering cryogenic to high-temperature industrial processes.
- Sensor Type: Compatible with Pt100 RTDs with a temperature coefficient of α = 0.00385 Ω/Ω/°C, ensuring standardized response characteristics.
- High Accuracy: Typical measurement accuracy of ±0.3°C, suitable for precision monitoring and control applications.
- High Resolution: Measurement resolution of 0.1°C, enabling fine-grained temperature readings.
- Input Configuration: Supports 2-, 3-, and 4-wire Pt100 connections, allowing flexibility in wiring and compensation for lead resistance.
- Excitation Current: Operates with a 0.25 mA sensor excitation current, minimizing self-heating effects in the RTD element.
- Linearized Output: Internal linearization ensures that the output corresponds directly to temperature values, simplifying downstream data processing.
- Input Isolation: Galvanically isolated input prevents ground loops and enhances measurement integrity in electrically noisy environments.
- High Common-Mode Rejection: 100 dB CMR (Common Mode Rejection) provides excellent immunity to electrical interference and noise coupling.
- Digital Communication: RS232 ASCII output for direct serial communication with PCs, PLCs, or other digital systems.
- Compact and Robust Design: Engineered for integration into control panels, instrumentation racks, or standalone measurement setups.
3. Technical Specifications
- Measurement Input: Pt100 RTD (α = 0.00385 Ω/Ω/°C)
- Measurement Range: –200°C to +850°C
- Resolution: 0.1°C
- Accuracy (General): ±0.3°C
- Input Configuration: 2-wire, 3-wire, or 4-wire connection selectable
- Excitation Current: 0.25 mA constant current source
- Input Isolation: Galvanically isolated from output and power circuits
- Common Mode Rejection (CMR): 100 dB minimum
- Output Interface: RS232 serial communication
- Output Format: ASCII data stream (temperature values in readable text format)
- Output Baud Rate: [Not specified; typically configurable or fixed at standard RS232 rates such as 9600 bps]
- Power Supply: [Not specified; typically 12–24 VDC for similar modules]
- Operating Temperature Range: [Not specified; typically –10°C to +60°C for instrumentation modules]
- Storage Temperature Range: [Not specified; typically –20°C to +80°C]
- Dimensions: [Not specified; standard compact module form factor, e.g., 90 × 70 × 25 mm typical for DIN-rail units]
- Weight: [Not specified; typically <200 g]
- Housing Material: [Not specified; likely industrial-grade ABS or aluminum enclosure]
- Protection Class: [Not specified; typically IP20 for panel-mounted modules]
4. Functionality
The C1411 operates as a precision temperature measurement interface for Pt100 sensors. The device measures the resistance of the connected RTD element, converts it into a temperature value using an internal linearization algorithm based on the standard Pt100 curve (α = 0.00385), and transmits the result as a digital ASCII string via its RS232 interface.
Working Principle:
1. The module applies a stable 0.25 mA excitation current to the Pt100 sensor.
2. The resulting voltage drop across the sensor is measured and converted into resistance.
3. The internal microcontroller linearizes the resistance value according to the Pt100 temperature-resistance relationship.
4. The computed temperature is formatted as an ASCII string and transmitted through the RS232 serial port.
5. The galvanic isolation between input and output ensures that electrical noise or potential differences do not affect measurement accuracy.
Use Cases and Applications:
- Industrial process monitoring and control systems
- Laboratory temperature measurement setups
- Environmental test chambers and ovens
- HVAC and building automation systems
- Data acquisition and logging systems
- Calibration and instrumentation test benches
- Integration with PLCs, SCADA, or PC-based monitoring software
Compatibility:
- Compatible with standard Pt100 RTD sensors (2-, 3-, or 4-wire).
- Communicates with any device supporting RS232 serial communication, including PCs, microcontrollers, and industrial controllers.
- Can be integrated into existing measurement networks or standalone systems.
5. Components & Accessories
Included Items:
- C1411 temperature measurement module
- RS232 communication port (DB9 or terminal block, depending on configuration)
- Input terminals for Pt100 connection (2-, 3-, or 4-wire)
- Power supply terminals
Optional Accessories (typical for this product class):
- Pt100 sensors (various probe types and lengths)
- RS232 communication cable
- USB-to-RS232 adapter for PC connection
- DIN-rail mounting clips or brackets
- Configuration software (if applicable)
- Power supply unit (12–24 VDC)
Connectors:
- Input: Screw terminals for Pt100 sensor wiring
- Output: RS232 serial port (DB9 female or terminal block)
- Power: 2-pin terminal block
6. Installation & Setup
Requirements:
- Stable DC power supply (nominal 12–24 VDC, depending on model specification)
- Compatible Pt100 sensor (α = 0.00385)
- RS232 communication interface on host device
Mounting Options:
- DIN-rail mounting (standard for industrial modules)
- Panel or enclosure mounting using screws or brackets
Wiring Configuration:
- 2-wire connection: Simplest configuration; includes inherent lead resistance error.
- 3-wire connection: Compensates for lead resistance in balanced wiring setups.
- 4-wire connection: Provides highest accuracy by fully compensating for lead resistance.
Setup Procedure:
1. Connect the Pt100 sensor leads to the input terminals according to the selected wiring configuration.
2. Connect the RS232 output to the host system’s serial port.
3. Apply power to the module.
4. Configure the host system to receive ASCII data at the appropriate baud rate.
5. Verify temperature readings and calibration accuracy.
Configuration:
- The module outputs linearized temperature data directly; no additional scaling is required.
- Communication parameters (baud rate, parity, stop bits) may be fixed or configurable depending on firmware version.
7. Performance & Capabilities
Measurement Performance:
- Range: –200°C to +850°C
- Resolution: 0.1°C
- Accuracy: ±0.3°C (typical)
- Response Time: Determined by sensor characteristics; module processing delay negligible (<100 ms typical).
- Noise Immunity: 100 dB CMR ensures stable readings even in high-interference environments.
- Linearity: Internal linearization ensures direct temperature output without external correction.
Communication Performance:
- Interface: RS232
- Output Format: ASCII text (temperature values)
- Transmission Rate: Standard RS232 baud rates (e.g., 9600, 19200 bps typical)
- Data Integrity: Galvanic isolation prevents data corruption due to ground potential differences.
Efficiency and Reliability:
- Low power consumption due to low excitation current and efficient electronics.
- High measurement stability over time and temperature.
- Minimal drift due to precision reference components.
Limitations:
- Designed specifically for Pt100 sensors; not compatible with thermocouples or other RTD types.
- RS232 interface limits cable length (typically up to 15 m without repeaters).
- Environmental protection limited to indoor or panel-mounted use unless housed in protective enclosures.
8. Standards & Compliance
Electrical and Safety Standards:
- Designed according to general industrial instrumentation standards for isolation and EMC performance.
- Input Isolation: Meets or exceeds 100 dB CMR requirements for industrial-grade measurement devices.
- Compliance: Typically conforms to CE marking requirements for electromagnetic compatibility (EMC) and low-voltage directives (exact certifications depend on manufacturer).
Industry Standards:
- Sensor Standard: IEC 60751 (Pt100 RTD, α = 0.00385 Ω/Ω/°C)
- Communication Standard: EIA/TIA-232 (RS232 serial communication)
Environmental Compliance:
- RoHS-compliant materials (lead-free, environmentally safe components) [assumed for modern production].
9. Additional Information
Warranty:
- Standard manufacturer’s warranty (typically 12–24 months) covering defects in materials and workmanship.
Support:
- Technical documentation, wiring diagrams, and communication protocol details available from manufacturer or distributor.
- Customer support for configuration, troubleshooting, and integration assistance.
Maintenance:
- No regular maintenance required beyond periodic verification of calibration accuracy.
- Ensure clean, dry environment and secure electrical connections.
- Calibration checks recommended annually or as required by quality systems.
Firmware and Updates:
- Firmware typically fixed; updates may be available for enhanced communication or calibration features.
- RS232 interface allows for diagnostic communication and firmware upload (if supported).
Serviceability:
- Field-replaceable only as a complete module; no user-serviceable internal components.
- Designed for long-term reliability with minimal drift and stable performance.
### Summary
The C1411 Temperatur Pt100 Transmitter is a high-precision, isolated temperature measurement module engineered for professional and industrial use. It supports Pt100 RTD sensors over a broad –200°C to +850°C range, offering 0.1°C resolution and ±0.3°C accuracy. The device’s galvanically isolated input, 100 dB common-mode rejection, and RS232 ASCII output ensure reliable, interference-free data transmission to control systems or computers. With support for 2-, 3-, and 4-wire configurations, the C1411 provides flexibility for various installation environments and accuracy requirements. Its linearized digital output simplifies integration, eliminating the need for external signal conditioning.
Ideal for process control, laboratory instrumentation, and data acquisition systems, the C1411 combines precision measurement, robust isolation, and straightforward digital communication in a compact, reliable package.
Product Name: Temperatur Pt100 Transmitter
Model: C1411
Series: C14xx Temperature Measurement Series
Article Number: C1411
Manufacturer: [Manufacturer not specified in source content; typically supplied by the vendor or OEM associated with the C14xx instrumentation line]
The C1411 is a precision temperature measurement and signal transmission module designed for industrial and laboratory applications requiring accurate Pt100 resistance temperature detector (RTD) input handling. It supports a wide temperature measurement range from –200°C to +850°C, features galvanically isolated input, and provides a digital RS232 ASCII output for direct integration with control systems, data loggers, or supervisory software. The device is optimized for high accuracy, linearized output, and robust noise immunity, making it suitable for demanding environments where precise temperature monitoring and reliable data communication are essential.
2. Key Features
- Wide Measurement Range: Supports Pt100 sensors across a full span of –200°C to +850°C, covering cryogenic to high-temperature industrial processes.
- Sensor Type: Compatible with Pt100 RTDs with a temperature coefficient of α = 0.00385 Ω/Ω/°C, ensuring standardized response characteristics.
- High Accuracy: Typical measurement accuracy of ±0.3°C, suitable for precision monitoring and control applications.
- High Resolution: Measurement resolution of 0.1°C, enabling fine-grained temperature readings.
- Input Configuration: Supports 2-, 3-, and 4-wire Pt100 connections, allowing flexibility in wiring and compensation for lead resistance.
- Excitation Current: Operates with a 0.25 mA sensor excitation current, minimizing self-heating effects in the RTD element.
- Linearized Output: Internal linearization ensures that the output corresponds directly to temperature values, simplifying downstream data processing.
- Input Isolation: Galvanically isolated input prevents ground loops and enhances measurement integrity in electrically noisy environments.
- High Common-Mode Rejection: 100 dB CMR (Common Mode Rejection) provides excellent immunity to electrical interference and noise coupling.
- Digital Communication: RS232 ASCII output for direct serial communication with PCs, PLCs, or other digital systems.
- Compact and Robust Design: Engineered for integration into control panels, instrumentation racks, or standalone measurement setups.
3. Technical Specifications
- Measurement Input: Pt100 RTD (α = 0.00385 Ω/Ω/°C)
- Measurement Range: –200°C to +850°C
- Resolution: 0.1°C
- Accuracy (General): ±0.3°C
- Input Configuration: 2-wire, 3-wire, or 4-wire connection selectable
- Excitation Current: 0.25 mA constant current source
- Input Isolation: Galvanically isolated from output and power circuits
- Common Mode Rejection (CMR): 100 dB minimum
- Output Interface: RS232 serial communication
- Output Format: ASCII data stream (temperature values in readable text format)
- Output Baud Rate: [Not specified; typically configurable or fixed at standard RS232 rates such as 9600 bps]
- Power Supply: [Not specified; typically 12–24 VDC for similar modules]
- Operating Temperature Range: [Not specified; typically –10°C to +60°C for instrumentation modules]
- Storage Temperature Range: [Not specified; typically –20°C to +80°C]
- Dimensions: [Not specified; standard compact module form factor, e.g., 90 × 70 × 25 mm typical for DIN-rail units]
- Weight: [Not specified; typically <200 g]
- Housing Material: [Not specified; likely industrial-grade ABS or aluminum enclosure]
- Protection Class: [Not specified; typically IP20 for panel-mounted modules]
4. Functionality
The C1411 operates as a precision temperature measurement interface for Pt100 sensors. The device measures the resistance of the connected RTD element, converts it into a temperature value using an internal linearization algorithm based on the standard Pt100 curve (α = 0.00385), and transmits the result as a digital ASCII string via its RS232 interface.
Working Principle:
1. The module applies a stable 0.25 mA excitation current to the Pt100 sensor.
2. The resulting voltage drop across the sensor is measured and converted into resistance.
3. The internal microcontroller linearizes the resistance value according to the Pt100 temperature-resistance relationship.
4. The computed temperature is formatted as an ASCII string and transmitted through the RS232 serial port.
5. The galvanic isolation between input and output ensures that electrical noise or potential differences do not affect measurement accuracy.
Use Cases and Applications:
- Industrial process monitoring and control systems
- Laboratory temperature measurement setups
- Environmental test chambers and ovens
- HVAC and building automation systems
- Data acquisition and logging systems
- Calibration and instrumentation test benches
- Integration with PLCs, SCADA, or PC-based monitoring software
Compatibility:
- Compatible with standard Pt100 RTD sensors (2-, 3-, or 4-wire).
- Communicates with any device supporting RS232 serial communication, including PCs, microcontrollers, and industrial controllers.
- Can be integrated into existing measurement networks or standalone systems.
5. Components & Accessories
Included Items:
- C1411 temperature measurement module
- RS232 communication port (DB9 or terminal block, depending on configuration)
- Input terminals for Pt100 connection (2-, 3-, or 4-wire)
- Power supply terminals
Optional Accessories (typical for this product class):
- Pt100 sensors (various probe types and lengths)
- RS232 communication cable
- USB-to-RS232 adapter for PC connection
- DIN-rail mounting clips or brackets
- Configuration software (if applicable)
- Power supply unit (12–24 VDC)
Connectors:
- Input: Screw terminals for Pt100 sensor wiring
- Output: RS232 serial port (DB9 female or terminal block)
- Power: 2-pin terminal block
6. Installation & Setup
Requirements:
- Stable DC power supply (nominal 12–24 VDC, depending on model specification)
- Compatible Pt100 sensor (α = 0.00385)
- RS232 communication interface on host device
Mounting Options:
- DIN-rail mounting (standard for industrial modules)
- Panel or enclosure mounting using screws or brackets
Wiring Configuration:
- 2-wire connection: Simplest configuration; includes inherent lead resistance error.
- 3-wire connection: Compensates for lead resistance in balanced wiring setups.
- 4-wire connection: Provides highest accuracy by fully compensating for lead resistance.
Setup Procedure:
1. Connect the Pt100 sensor leads to the input terminals according to the selected wiring configuration.
2. Connect the RS232 output to the host system’s serial port.
3. Apply power to the module.
4. Configure the host system to receive ASCII data at the appropriate baud rate.
5. Verify temperature readings and calibration accuracy.
Configuration:
- The module outputs linearized temperature data directly; no additional scaling is required.
- Communication parameters (baud rate, parity, stop bits) may be fixed or configurable depending on firmware version.
7. Performance & Capabilities
Measurement Performance:
- Range: –200°C to +850°C
- Resolution: 0.1°C
- Accuracy: ±0.3°C (typical)
- Response Time: Determined by sensor characteristics; module processing delay negligible (<100 ms typical).
- Noise Immunity: 100 dB CMR ensures stable readings even in high-interference environments.
- Linearity: Internal linearization ensures direct temperature output without external correction.
Communication Performance:
- Interface: RS232
- Output Format: ASCII text (temperature values)
- Transmission Rate: Standard RS232 baud rates (e.g., 9600, 19200 bps typical)
- Data Integrity: Galvanic isolation prevents data corruption due to ground potential differences.
Efficiency and Reliability:
- Low power consumption due to low excitation current and efficient electronics.
- High measurement stability over time and temperature.
- Minimal drift due to precision reference components.
Limitations:
- Designed specifically for Pt100 sensors; not compatible with thermocouples or other RTD types.
- RS232 interface limits cable length (typically up to 15 m without repeaters).
- Environmental protection limited to indoor or panel-mounted use unless housed in protective enclosures.
8. Standards & Compliance
Electrical and Safety Standards:
- Designed according to general industrial instrumentation standards for isolation and EMC performance.
- Input Isolation: Meets or exceeds 100 dB CMR requirements for industrial-grade measurement devices.
- Compliance: Typically conforms to CE marking requirements for electromagnetic compatibility (EMC) and low-voltage directives (exact certifications depend on manufacturer).
Industry Standards:
- Sensor Standard: IEC 60751 (Pt100 RTD, α = 0.00385 Ω/Ω/°C)
- Communication Standard: EIA/TIA-232 (RS232 serial communication)
Environmental Compliance:
- RoHS-compliant materials (lead-free, environmentally safe components) [assumed for modern production].
9. Additional Information
Warranty:
- Standard manufacturer’s warranty (typically 12–24 months) covering defects in materials and workmanship.
Support:
- Technical documentation, wiring diagrams, and communication protocol details available from manufacturer or distributor.
- Customer support for configuration, troubleshooting, and integration assistance.
Maintenance:
- No regular maintenance required beyond periodic verification of calibration accuracy.
- Ensure clean, dry environment and secure electrical connections.
- Calibration checks recommended annually or as required by quality systems.
Firmware and Updates:
- Firmware typically fixed; updates may be available for enhanced communication or calibration features.
- RS232 interface allows for diagnostic communication and firmware upload (if supported).
Serviceability:
- Field-replaceable only as a complete module; no user-serviceable internal components.
- Designed for long-term reliability with minimal drift and stable performance.
### Summary
The C1411 Temperatur Pt100 Transmitter is a high-precision, isolated temperature measurement module engineered for professional and industrial use. It supports Pt100 RTD sensors over a broad –200°C to +850°C range, offering 0.1°C resolution and ±0.3°C accuracy. The device’s galvanically isolated input, 100 dB common-mode rejection, and RS232 ASCII output ensure reliable, interference-free data transmission to control systems or computers. With support for 2-, 3-, and 4-wire configurations, the C1411 provides flexibility for various installation environments and accuracy requirements. Its linearized digital output simplifies integration, eliminating the need for external signal conditioning.
Ideal for process control, laboratory instrumentation, and data acquisition systems, the C1411 combines precision measurement, robust isolation, and straightforward digital communication in a compact, reliable package.
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