KS-42D Particle counter with light blocking detector
The KS-42D particle counter with a light blockage detector enables counting and sizing of particles from 2 µm to 100 µm in water and high-purity chemicals. The system provides up to 10 particle size channels, offering high flexibility for a wide range of process control requirements. The KS-42D is designed for both continuous online operation and batch measurements. Its chemically resistant materials, including quartz glass and PFA, make it suitable for measurements in certain aggressive chemicals. With its attractive price-performance ratio, the KS-42D is an ideal instrument for robust particle monitoring tasks in process control. The modular KS series (KS-19, KS-20, KS-41, KS-42) allows seamless expansion of the measurement range to meet increasing demands for accuracy, ensuring adaptability as process requirements evolve.
Specifications
| Optical system | Light-obscuration method |
| Light source | Laser diode (wavelength 780 nm, rated output 5 mW) |
| Laser product class | Class 1, IEC 60825-1 |
| Light detector | Photodiode |
| Materials of parts exposed to sample | Synthetic quartz, PFA, Perfluoro (fluorocarbon rubber) |
| Allowable sample type | Fluids which do not corrode the fluid contact materials |
| Calibration | Polystyrene latex (PSL) particles (refractive index 1.6) in pure water |
| 8 channels (factory default) | ≥2μm, ≥3μm, ≥5μm, ≥7μm, ≥10μm, ≥25μm, ≥50μm, ≥100μm (≥150μm support available as option) |
| User selectable channels | 1 to 10 channels, setting made from Controller |
| Setting range | 2μm to 100μm |
| Count efficiency | 100 ±20 % |
| Flow rate | 25 mL/min |
| Maximum particle number concentration | 10 000 particles/mL (at 10 % coincidence loss for 10μm particles) |
| Sample pressure range | -80 to 300 kPa (gauge pressure) |
| Sample inlet / outlet | 2 (dia.) x 4 (dia.) flared joint for tube |
| CONTROLLER connector | Connecting to KE-40B1 |
| LIQUID LEAK/ ALARM connector | Alarm output terminal shorted during normal operation, open when internal leak is detected |
| Power | DC12 V (supplied by KE-40B1) |
| Environmental conditions for operation | 5 ˚C to 40 ˚C, less than 90 % RH (no condensation) |
| Dimensions and weight | 125 (H) x 140 (W) x 151 (D) mm (excluding protruding parts), Approx. 2.2 kg |
| Accessories | Tube A vacuum pack x 1 (2 x 4 dia. PFA tube with flared joint at one end, 1.5 m x 2, Union joint x 1), Connection cable A (1 m) x 1 |
| Option | Connection cable (5 m) KS-42-123, Sensor Stand KS-42-S39 |