Promo® 3000
The Promo® 3000 is a light-scattering aerosol spectrometer system with two sensors for particle size analysis and concentration determination that can be equipped with all welas ® sensors.
On Promo® 3000, the welas® sensors equipped with different measurement volumes, as required, can be easily connected via fiber optic cables and interchanged as needed. These sensors allow reliable measurement in the concentration range from < 1 particle/cm3 up to 106 particles/cm3 and are available for measurement in gases and liquids.
Unique are up to four measuring ranges in only one device:
- 0.2 µm – 10 µm
- 0.3 µm – 17 µm
- 0.6 µm – 40 µm
- 2 µm – 100 µm (additionally for sensors 2300 and 2500)
Promo® 3000 is famous for up to 128 size channels per measuring range and a concentration range from < 1 particle/cm3 to 106 particles/cm3.
Variants
More alternatives
Operation principle
Scattered-light aerosol spectrometer system with two sensors for quasi-simultaneous measurements
A touch display ensures user-friendly operation. Measurements can be started quickly, and all data, such as the current number distribution, number concentration, and 24 further statistical values, can be evaluated and displayed in real time.
Measurements are performed continuously with Promo® as a standalone measuring device (i.e., without an external computer)® as a standalone measuring device (i.e., without an external computer), and measurements are performed continuously. All incoming data can be stored with a maximum temporal resolution of 1 s. Promo® can therefore measure and save data over weeks independently. For data transfer, Promo® can also be integrated into a company network.
The Promo® has a standard interface and can be controlled by a process control system or a simple Labview program.
On Promo® 3000, two welas® sensors are supplied with one light source, and a photomultiplier detects the scattered light pulses. This enables a quasi-simultaneous particle measurement at two sampling locations up to 100 meters apart.
With Promo® 3000, the user effectively has two scattered-light spectrometers in one device with the same device characteristics:
- Particle size resolution capability
- Particle size classification accuracy
- Counting efficiency
- Zero counting rate
The various welas® sensors are characterized by perfect conformity of counting efficiency and particle size resolution (see product data sheet: welas® sensors").
All welas® 2000 series sensors can be used with the Promo® 3000. The quasi-simultaneous particle size and quantitative particle determination offer particular advantages for characterizing separators with fluctuating raw gas concentrations.
Opto-mechanical switching
Using optomechanical switching, the two connected sensors can be easily controlled. The sensors are controlled automatically with the software.
The particular advantage over a manual measurement selector switch:
- Faster change of the measurement location
- No deposits in sampling lines
- Long service life; no wear of the seals due to dust particles
The Promo® measurement technology
The Promo® has a new, fast 20 MHz signal processing processor, which analyses the interference of each particle. This makes it possible to recognize coincidental events based on the scattered light signal, i.e., more than one particle in the measurement volume at one time can be identified from the individual signal and corrected (according to Dr. Umhauer / Prof. Dr. Sachweh).
This makes it possible to increase the maximum concentration limit to 106 particles/cm3 (welas® 2070 sensor). Also, low concentrations of < 1 particle/cm3 with the welas® 2500 sensor lead3 with the welas® 2500 sensor lead to higher measuring accuracy.High classification accuracy and large particle size resolution (see Graph 1) are guaranteed by the following special features:
- White light and 90° light-scattering detection ⇒Unambiguous calibration curve
- Patented T-aperture ⇒No border zone error
- New digital individual signal processing ⇒Coincidence detection and correction of the individual signal making it possible to measure higher concentrations.
Graph 1: Example with 2200 sensor
The Promo® aerosol spectrometer is characterized by its high counting efficiency starting from 0.2 µm!
Graph 2: Example with 2200 sensor, in relation to LAS-X II
Veröffentlichungen
- Binepal, T.: Test Methodology to Determine Aerosol Transfer in Membrane Energy Exchangers; Ashreae Read more
Benefits
Your special advantages
- Measuring range of 0.2 to 100 µm (4 measuring ranges selectable in one device)
- Up to four measuring ranges in only one device:
- 0,2 µm – 10 µm
- 0,3 µm – 17 µm
- 0,6 µm – 40 µm
- 2 µm – 100 µm (additionally for sensors 2300 and 2500)
- Up to 128 size channels per measuring range
- Concentration range of 1 particle/cm3 to 106 particles/cm3
- Calibration curves for different refractive indices
- Very high and reproducible counting efficiency rate starting at 0.2 µm
- Optical fibre technology
- Simple operation with a large touch display
- Calibration, cleaning and lamp replacement can all be performed independently by the customer
- External control by RS 232 or Ethernet
- With analysis software PDAnalyze
- Optional: Software PDControl for operation as welas® digital available
- Low maintenance
- Reliable function
- Reduces your operating expenses
Applications
Individual solutions for various industries
- Emission monitoring of installations
- Control of grinding and classification processes
- Monitoring of production processes in the food, pharmaceuticals and chemicals industries
- Testing of complete filters, inertial and wet separators or electrostatic precipitators
Technical features
In detail
- Measuring principle
- Optical light-scattering
- Measurement range (number C_N)
- < 1 • 106 Partikel/cm3
- Measurement range (size)
- 0.2 – 10 µm, 0.3 – 17 µm, 0.6 – 40 µm, 2 – 100 µm
- Volume flow
- 5 l/min
- Size channels
- Max. 128 (64/decade)
- Time resolution
- ≤ 1 s
- Interfaces
- USB, Ethernet (LAN), Wi-Fi, RS-232/485
- User interface
- Touchscreen, 800 • 480 pixel, 7" (17.78 cm)
- Data logger storage
- 4 GB Compact Flash
- Software
- PDControl, FTControl, PDAnalyze
- Thermodynamic conditions
- +10 – +40 °C, -100 – 50 mbar
- Data acquisition
- Digital, 20 MHz processor, 256 raw data channels
- Light source
- Xenon arc lamp 35 W
- Housing
- Table housing, optional: with mounting brackets for rack-mounting
- Support options
- Direct remote access, Palas webserver service
- Operating system
- Windows embedded
- Power supply
- 115 – 230 V, 50/60 Hz
- Power consumption
- 100 W
- Installation conditions
- +5 – +40 °C (control unit)
- Dimensions
- 185 • 450 • 315 mm (H • W • D) (19")
- Weight
- Control unit: approx. 8 kg, sensor: approx. 2.8 kg
