Description
Honeywell SC-TEPR01
Technical Specifications
- Channel Quantity: 4 universal analog input channels
- Supported Signal Type: NTC10K thermistor, 0-10VDC, 4-20mA
- Analog Resolution: 12 bit
- Communication Interface: SC dedicated internal I/O bus
- Working Ambient Temperature: 0°C to +60°C
- Storage Temperature: -40°C to +85°C
- Relative Humidity: 5% to 90% RH non-condensing
- Isolation Rating: 500VAC channel to logic isolation
- Mounting Method: TS35 standard DIN rail mounting
- Certification: UL60730, CE, RoHS
Functional Features Each channel supports software switching between temperature and pressure sensor signal mode. It provides high precision sampling and digital noise filtering for analog input. It uploads real-time measured value and channel fault diagnostic information to SC host controller. It has independent LED indicator for module power, fault and each channel status. It adopts two-part removable terminal connector for convenient pre-wiring and maintenance. It supports cascading with other SC series I/O modules on the same I/O bus. It detects open circuit and short circuit fault of sensor wiring loop.
Application Scenarios Air handling unit supply and return water temperature and pressure monitoring Chiller chilled water pressure and temperature sensor signal collection Fan coil unit room temperature monitoring HVAC duct static pressure transmitter signal acquisition Building automation BMS analog I/O expansion spare replacement
Performance Parameters
- NTC10K Measurement Accuracy: ±0.3°C within -20°C to +90°C
- Voltage and Current Signal Accuracy: ±0.5% full scale
- Insulation Resistance: Greater than 1000 MΩ
- Mean Time Between Failures: 910000 hours
- ESD Immunity: 8kV contact discharge
- Terminal Wiring Specification: 0.5mm² to 2.5mm² copper wire
Material Composition FR4 flame retardant PCB substrate 12-bit analog to digital conversion chip Precision signal conditioning operational amplifier array TVS surge suppression diodes Metal film reference resistors Nylon UL94 V-0 removable terminal block ABS flame retardant plastic housing Tri-color LED status indicators Steel DIN rail elastic locking clip
Structural Features Compact rectangular DIN rail housing. Front panel integrates removable terminal plug and channel LED indicators. Rear side dedicated I/O bus connector for interconnection with SC main controller or other SC I/O modules. Internal PCB layout separates analog signal sampling zone and digital communication zone to reduce crosstalk. Quick-release locking clip secures the module firmly on DIN rail. Anti-key notch prevents reverse bus connection. Transparent label area marks channel function definition.
Working Principle Field temperature or pressure sensor signal enters the universal input channel terminal. Signal conditioning circuit converts different sensor signal into standard voltage signal. ADC chip converts analog signal into digital value. On-board logic chip filters noise and transmits digital measurement data to SC host controller via dedicated I/O bus. When sensor wire is open or shorted, the module identifies fault state and sends fault alarm message to host controller.
Installation Requirements Mount SC-TEPR01 on TS35 DIN rail inside dry HVAC control cabinet. Wire sensor shielded twisted pair cable to the corresponding channel terminal. Connect SC I/O bus cable between module and host controller. Set sensor type, scaling parameter and alarm threshold in SC engineering software. Power on the bus and verify measured value matches field instrument reading. Separate analog signal cable from inverter and high frequency power cable.
Usage Notes Each channel must be configured to match the actual connected sensor type. Shielded twisted pair cable is mandatory for 4-20mA and 0-10V analog signal wiring. Do not apply voltage exceeding 30VDC to input terminals. Keep cabinet internal temperature stable to avoid measurement drift. Do not install this module in corrosive gas environment.
