Products

---

---

---

SIEMENS UV DETECTORS

UV detectors are a segment of equipment, containing a light source, a photoelectric cell, a diffraction grating or monochromator to divide the different wavelengths of light, which is used to identify the assimilation of ultraviolet (190--400 nm) light by molecules in a sample segregated by chromatography.

HPLC UV detectors are utilized with superior execution liquid chromatography to distinguish the analytes in the sample. A UV visible HPLC detector utilize the light to inspect the samples. the analyte can be recognized by calculating the sample's absorption of light at various wavelengths.

The Variable Wavelength UV Detector utilize a monochromator (slits and a grating) to choose one wavelength of light to elapse through the sample cell. The Photodiode Array indicator drives all wavelengths of light through the sample cell, then concentrate each wavelength on a single sensor element.

Ultraviolet (UV) detectors are also implemented in applications like Industrial, scientific research and military. Ultraviolet (UV) detectors ought to be either "solar blind" or "visible blind" to examine a weak UV signal in the presence of strong ambient light.

Typical applications or UV sensors include :
1. Monitoring the filtering ability and stability of various materials
2. UV radiation measurement in outdoor environments (sensor is not recommended for long-term continuous outdoor deployment)
3. Laboratory use with artificial light sources (e.g., germicidal lamps)

SIEMENS FLAME SENSORS

A Flame Detector / Flame Sensor is the perfect option for sections containing flammable materials - such as engine test beds, flammable stores or hangars. These sections include a high level of danger and fast fire accumulation. A Flame Detector/ Flame Sensor discover very quickly the gas fires, smokeless liquid and smoke-generating open fires of carbon-based materials.

A Flame Detector / Flame Sensor is a sensor created to examine and riposte to the presence of a flame or fire, allowing flame detection. Retort to a detected flame is based on the set-up but can constitute shutting off a fuel line (such as a propane or a natural gas line), sounding an alarm and activating a fire suppression system. The role of flame detector/Flame sensor is to impart the validation that the furnace is working properly when used in applications such as industrial furnaces. A flame detector/Flame sensor can often react rapidly and more precisely than a heat detector or a smoke due to the systems Flame sensor uses to detect the flame.

SIEMENS PHOTOCELLS FOR OIL & GAS BURNERS

Visible light sensors are normally cited as remedial photocells. These Photocells operate on a reformation standard, where fluctuating voltage is assigned to the F (flame sensing) terminal and the G (ground) terminal of the important flame control. It is the flame detector’s function to allow the flow of current, in addition to transform the fluctuating current to direct current when it perceives the presence of a flame.

The reformative photocell has one specific benefit over conventional non-rectifying optical flame sensors i.e. the system, which is secured resisting a false flame signal due to the presence of a high resistance short, will fail in a safe mode.

Photocells are mostly used for commercial and industrial oil burners where a “reliable” sensor is essential. Balanced gas flames may not release adequate light for a photocell to operate.

Ultraviolet sensors, unlike reformative photocells, possibly be used with either gas or oil flames. As over and above 90% of the flame’s complete radiation is infrared, these Ultraviolet sensors obtain abundant radiation of entirely high extremity and will function with either very weak or very hot flames.

The following rules apply to the application of rectifying photocells :
1. Proper lead wire must be used for the flame lead.
2. The photocell must have a good view of the flame.
3. Temperature at the photocell must remain under 165^oF.
4. The photocell must be protected from the light emitted from hot refractory.

---

---