Распределенный температурный датчик DTSX3000 может измерять температуры на расстоянии до 50 км, что делает его подходящим для измерения распределения температуры на поверхности крупных объектов, таких как длинные линии электропередачи.
| Types of Scattering Light | Features |
|---|---|
| Rayleigh Scattering(Rayleigh) | Caused by fluctuations in the density inside the mediumSame frequency components as those of incident light |
| Raman Scattering(Raman) | Caused by the interaction with molecular vibration inside the mediumThe intensity of anti-Stokes rays is mainly dependent on temperature. |
| Brillouin Scattering(Brillouin) | Caused by the interaction with sound waves inside the mediumThe frequency is dependent on strain and temperature. |
| Measurement Method | Advantages |
| Single-Ended Measurement Method | Compared to the double-ended measurement, the fiber optic sensor cable can be easily installed.No optical switch is required.Even if the optical fiber is broken, it is possible to continue measurement at points before the broken section. |
| Double-Ended Measurement Method | The optical fiber loss distribution along the optical fiber is automatically canceled out.Yokogawa's method reduces the influence such as darkening.If the optical fiber is broken, the measurement method is automatically switched to the single-ended measurement. |
| Type | Features |
| Fiber Optic Sensor | An optical fiber, used as the temperature sensor, is suitable for monitoring temperatures over a long distance and wide area. It allows you to identify specific locations on a per sampling-interval basis along the fiber optic sensor cable and to monitor the temperature at each location. |
| Thermo Camera | This instrument detects infrared radiant energy from objects to measure temperatures. Capable of measuring temperature distributions over a wide area in a non-contact manner, it is suitable for monitoring temperatures of industrial furnaces, solids of revolution, and so on. |
| Resistance Thermometer | This sensor uses the characteristic of the electrical resistance of metal that changes almost in proportion to temperature. Capable of accurate temperature measurement, it is suitable for industrial precision temperature measurement. |
| Thermocouple | When two different metals are connected to each other, the temperature difference between the metals develops electromotive force at the connection. This sensor uses this electromotive force. Capable of measuring temperature over a wide area at low cost, it is widely used as a temperature sensor for industrial use. |
| Radiation Thermometer | This thermometer measures temperatures by measuring the intensity of infrared rays from materials. As a non-contact thermometer capable of remote measurement, it is suitable for measuring ultra-high temperatures. |
| Description | Wide-area monitoring based on a fiber optic sensor |
| Detection Method | Contact |
| Range of Temperatures Monitored | -200 to 300 °C(Based on a sensor cable) |
| Area | Coverage of a very wide areaDTSX200: up to 6 km / chDTSX3000: up to 50 km / chDTSX1: up to 16 km / ch |
| Advantages | Coverage of a very wide area and seamless monitoring |
| Disadvantages | Restricted to small areas |
| Normal Operating Temperature | Applications |
| Normal Temperature | Conveyor Fire DetectionCable Temperature MonitoringBus Duct Temperature MonitoringCable Tunnel Fire DetectionWarehouse Fire DetectionHot Spot DetectionCold Spot Detectionetc. |
| Robust Type | Image Zoom |
| Flexible Type | Image Zoom |
| High / Low Temperature | Blast Furnace MonitoringDrying Furnace MonitoringLNG Leak DetectionWell Monitoringetc. |
| Steel Armored Type | Image Zoom |
| Item | Specifications |
| Distance range suffix code | -S |
| Distributedtemperaturemeasurement | Distance |
| Sampling resolution | 0.5 m, 1 m, 2 m |
| Spatial resolution | 1 m or less |
| Temperature | Measurement temperature range |
| Max. Value | 0.03 °C |
| Typical Value | 0.02 °C |
| Sensor optical fiber | Optical fiber |
| Optical connector | E2000 / APC |
| Interface | Control |
| Network Interface | LAN |
| Display | LEDs: HRDY, RDY, Alarm, Active channel |
| Power supply | Consumption |
| Power save mode | 2.1 W |
| Dimensions (W x H x D) | 71.65 x 130.0 x 160.3 mm (2 slots width) |
| Weight | 0.63 kg |
| Model | DTOS2L |
| Insertion loss | 0.8 db (Typical)1.4 dB (Max.) |
| Distributed temperature measurements | Measurement type |
| Sensor optical fibers | Optical fiber |
| Optical channels | 2 channels |
| Safety Standards | CSA C22.2 No.61010-1-04EN 61010-1:2010EN 61010-2-030:2010EN IEC 61010-2-201:2018CU TR 004 |
| EMC Standards | CE Marking |
| RCM | EN 55011:2016+A1:2017 Class A Group 1 |
| KC Marking | Korea Electromagnetic Conformity Standard |
| EAC Marking | CU TR 020 |
| Laser safety | Class |
| FDA (CDRH) | 21CFR Part 1040.10 |
| Standards for Hazardous Location Equipment | FM Nonincendive |
| ATEX Type "n" | II 3 G Ex nA ic [op is Gc] IIC T4 Gc XEN IEC 60079-0:2018EN 60079-11:2012EN 60079-15:2010EN 60079-28:2015 |
| CSA Non-Incendive | Class I, Division 2, Groups A, B, C, D T4C22.2 No. 0-10CAN/CSA-C22.2 No. 0.4-04C22.2 No. 213-M1987TN-078 |
| Restriction of Hazardous Substances | RoHS Directive |
| Features | Benefits |
| Isolation from electromagnetic interference | Fiber optic is isolated from electrical magnetic current |
| Real time temperature measurement and monitoring | Measure and monitor real time power grid/cable temperature |
| Measure and monitor multiple power circuits/cables | Up to 16 channels of optical switch can be connected |
| Report and data analysis | Access historical data using HTTP, SFTP or web browser |
| Wide range of communication protocols | Connect to existing DCS, PLC, DAQ and wireless interface |
| 6km optical fiber = 6,000 points! | Cost effective way of measuring temperature compared to traditional sensor technology |
| Feature | Benefits |
| 1m special resolution | Identify the exact location of the fire |
| Up to 0.1°C temperature resolution | Possible fire detection within the first 10 seconds of occurrence * |
| Fiber optic cable sensor | Provides a complete and continuous profile of the downhole well |
| Coated fiber optic cable | Immune to dust, humidity, corrosion and dirt |
| Ultra low power consumption: 10W | Perfect for solar application in remote areas |
| Operating temperature range: -40 °C to 65 °C | Perfect for rugged environment without cooling or heating |
| Control capability with NFCP050 module | Monitor and control external devices such as flow, pressure, valve position, temperature, etc. |
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