SRU FO
Temperature Range: 350°C to 2000°C
Explosion Proof Digital IR Fibre Optic Pyrometer with Mono Fiber Optic Cable
The Pyrosens SRU FO is an explosion-proof digital infrared fiber optic pyrometer designed for precise non-contact temperature measurement in Sulphur Recovery furnaces. It features a two-channel model, capable of measuring refractory temperature, gas temperature, and smart hybrid temperature within a temperature range of 350°C to 2000°C. The pyrometer is ideal for high ambient temperature environments and applications where explosion-proof protection is crucial. It operates without the need for cooling.
Key Features
- Wide Temperature range: 350°C to 2000°C
- Two Channel for measurement of Refractory, Gas Temperatures and smart hybrid temperature
- Explosion-Proof Certification II 2G Ex db IIC +H2 T3,
- IECEx, ATEX, FM (US and CDN)
- CE Certifications (EMI/RFI)
- Fast Response Time : 2ms to 10Sec. (Analog)
- Fiber Optic Cable withstand up to 250˚C ambient
- Two analog outputs(4-20mA and 0-20mA), two relay outputs, Analog Sub range adjustable(350- 2000 °C) and RS485 Interface.
- OLED Display (128×64) with keypad
- RS-485 Serial Interface
- User Friendly PC software for communication
Scope of Supply
- 2.5 mtr Mono Fibre optic cable of 500µ (5, 10 mtr. optional)
- Optical head OH(ll)
- Analog Output 4…20mA, 0 – 20mA
- RS-485 digital interface
- 5 mtr long connection cable with connector
- Calibration Certificate, Explosion Proof Certificate for enclosure, PC Software & Operation manual
Optional Accessories
- Mechanical and Electrical Accessories
- Extra Lengths of Fiber Cable and Connection cable
Technical Specifications
| Model | SRU FO |
| Temperature Range (Analog sub-range adjustable) | 350°C to 2000°C |
| Distance to Spot Size Ratio | 100:1 OH(ll) |
| Transmitivity | 0.1….1.0 adjustable |
| Emissivity (ε) | 0.01….1.0 adjustable |
| Response Time | 2 msec adjustable upto 10 sec (for Analog) |
| Accuracy | ± 0.25% of the measured value + 1°C |
| Repeatability | 0.1% of reading in °C + 1°C |
| Analog Output | 0-20mA, 4-20mA (User selectable) |
| Digital Output | RS-485 |
| Area Classification | Zone 1 and 2 ll C T3 |
| Relay | Output with Hysteresis 60V DC / 42V AC RMS, 0.4A |
| Operating Temp. Range | Pyrometer 0°C…….70°C Optical head and Fibre Optic Cable upto 250°C |
| Storage Temp. Range | -20°C…70°C |
| Adjustable Parameters and Features via Software | Emissivity, Transmissivity Response Time, Clear Time(Peak Picker), Analog Output, Analog Scale (Sub Range), Unit Of Temperature(°C/°F), Record feature etc |
| Power Supply | 12V to 28V DC with reverse polarity protection |
| Power Consumption | Max 2.5 W |
| Protection Class | Explosion Proof |
| Housing | Di-Cast Aluminium |
| Isolation | Power supply, *Digital output and Analog output are galvanically islolated against each other |
| Operating Humidity | 10-95%, Non-Condensing Conditions |
| Weight & Dimensions | Length=133 x 156.60(mm) |
