Product Overview
The OHTS1092 is a UV radiation measurement transmitter based on the photoelectric effect principle, featuring an aluminum enclosure design suitable for industrial-grade environmental monitoring applications. The device integrates a high-sensitivity UV photoelectric sensor, capable of detecting ultraviolet radiation in the wavelength range of 290nm to 390nm.
The transmitter supports dual-parameter output of UV intensity (unit: mW/cm²) and UV Index, making it versatile for various monitoring scenarios. The device employs an RS-485 bus interface and supports the ModBus-RTU communication protocol, making it suitable for distributed data acquisition systems and easy integration with existing industrial control systems. With a protection rating of IP67, it can operate stably in harsh outdoor environments over long periods, providing reliable UV radiation data for meteorological, agricultural, and industrial applications.
Features
Photoelectric Sensing Technology: Utilizes high-sensitivity response for the 290-390nm spectral band, ensuring accurate UV detection across the critical wavelength range for environmental and industrial monitoring.
Dual-Parameter Output: Supports simultaneous measurement of UV intensity (0-15 mW/cm²) and UV Index (0-15), providing comprehensive ultraviolet radiation data with 0.01 mW/cm² resolution.
Standard Industrial Interface: Features RS-485 interface with ModBus-RTU protocol, ensuring compatibility with PLC and SCADA systems for seamless integration into existing monitoring networks.
Robust Environmental Protection: Aluminum enclosure structure with IP67 protection rating provides complete dust and water resistance, enabling reliable operation in harsh outdoor conditions.
Flexible Power Options: Wide voltage supply range of 10 VDC ~ 30 VDC adapts to various industrial field power conditions with low power consumption of maximum 0.06W.
Precision Installation: Built-in spirit level facilitates installation horizontal calibration, ensuring the sensor sensing surface remains parallel to the ground for optimal measurement accuracy.
Field Calibration Capability: Integrated deviation calibration register supports on-site measurement offset compensation, allowing users to adjust for environmental factors and maintain long-term accuracy.
Fast Response: 0.2s response time (t90) enables real-time monitoring of rapidly changing UV conditions, suitable for dynamic industrial processes and meteorological observations.
Applications
- UV radiation monitoring at atmospheric environmental monitoring stations
- Solar UV index acquisition for meteorological observation networks
- UV sterilization dose monitoring in agricultural facilities
- UV radiation measurement at forestry ecological monitoring stations
- Calibration of UV radiation intensity from artificial light sources
- Environmental UV monitoring for outdoor photovoltaic installations
- UV source intensity detection in laboratories
- Industrial UV curing process monitoring
- Auxiliary UV transmittance testing for building curtain walls
- UV disinfection dose monitoring in water treatment systems
Technical Specifications
| Parameter | Specification | Remarks |
|---|---|---|
| Supply Voltage | 10 VDC ~ 30 VDC | DC Power Supply |
| Maximum Power Consumption | 0.06 W | - |
| Operating Temperature Range | -25°C ~ +60°C | - |
| Storage Temperature Range | -40°C ~ +85°C | Estimated value, based on industrial-grade component standards |
| Typical Accuracy | ±10% FS | @ 365nm, 60% RH, 25°C |
| UV Intensity Range | 0 ~ 15 mW/cm² | - |
| Resolution | 0.01 mW/cm² | - |
| UV Index Range | 0 ~ 15 | Dimensionless |
| Spectral Response Range | 290nm ~ 390nm | - |
| Linearity | ≤ ±1% | Full Scale |
| Annual Stability | ≤ ±3% | Long-term drift |
| Response Time | 0.2s | t90 |
| Output Interface | RS-485 | ModBus-RTU Protocol |
| Communication Distance | ≤ 2000m | Depends on bus load and baud rate |
| Protection Rating | IP67 | Aluminum Enclosure |
| Default Device Address | 0x01 | Configurable range 1 ~ 254 |
| Default Baud Rate | 4800 bit/s | Configurable: 2400/4800/9600 bit/s |
Physical Specifications
| Parameter | Specification |
|---|---|
| Housing Material | Aluminum Alloy |
| Mounting Method | Wall-mounted/Bracket mounting, φ4mm mounting holes |
| Cable Specification | Waterproof mating cable, 70cm length |
| Weight | TBD (To be determined based on actual measurement) |
FAQ
Q: What is the spectral response range of the OHTS1092?
A: The OHTS1092 detects ultraviolet radiation in the wavelength range of 290nm to 390nm using photoelectric sensing technology, with typical accuracy of ±10% FS at 365nm, 60% RH, and 25°C.
Q: Can this device be used as a safety interlock or emergency shutdown component?
A: No, this device is strictly prohibited from use as a safety interlock device or emergency shutdown system component, and must not be used in safety-critical applications where equipment failure could result in personal injury.
Q: What is the protection rating and operating temperature range?
A: The device features an IP67 protection rating with aluminum enclosure construction, and operates within a temperature range of -25°C ~ +60°C, with storage temperature range of -40°C ~ +85°C.
Q: How do I perform offset calibration in the field?
A: The device supports on-site measurement offset compensation through register 0052H. Write the compensation value multiplied by 100 to this register using ModBus commands. The actual output will be corrected by adding the offset to the raw measurement value.
Q: What are the power supply and communication requirements?
A: The device requires a DC power supply of 10 VDC ~ 30 VDC with maximum power consumption of 0.06W. Communication uses RS-485 interface with ModBus-RTU protocol at default 4800 bit/s baud rate, supporting configurable rates of 2400/4800/9600 bit/s and device addresses from 1 to 254.