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Turbidity and suspended solids probe for use in VARIVENT® piping systems
The TSS Vari sc is a digital process probe for the extremely accurate in pipe measurement of turbidity and suspended solids specially designed for use in food and pharmaceutical sectors. This in pipe probe is installed by Varivent access unit and can measure both on-line suspended solids and turbidity in one instrument. The two channel 90° scattered light turbidity method is in accordance with DIN EN ISO 7027. For the determination of suspended solids a scattered light measurement method at 120 ° is integrated. This eight channel measurement system, with an integrated bubble and temperature compensating software, enables the instrument to have a wide measuring range. The TSS Vari sc probes are compatible with the Hach SC200 and SC1000 controller platform. Furthermore, they are made of polished stainless steel with a scratch resistant and easy to clean sapphire window design to withstand harsh environments.
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| Accuracy | Turbidity up to 1000 NTU: < 5% of the measured value ±0.01 NTU |
| Ambient Temperature | 0 – 60 °C (briefly 80 °C) |
| Application | Varivent piping systems |
| Automatic Wiper | No |
| Cable Length | 10 m (optional extension cables available) |
| Cable Length | 10 m (optional extension cables available) |
| Calibration | Turbidity (TRB): Factory calibrated Solids (TS): To be calibrated by customer on site Zero point: Permanently calibrated in the factory |
| Calibration Method | Turbidity (TRB): Factory calibrated Solids (TS): To be calibrated by customer on site Zero point: Permanently calibrated in the factory |
| Controller Compatibility | SC200, SC1000, SC4500. All controllers sold separately |
| Diameter | 40 mm |
| Flow | Max. 3 m/s (the presence of air bubbles affects the measurement) |
| Includes | Turbidity & Suspended Solids sensor, user manual |
| Installation style | Varivent Measuring tube |
| Length | TSS VARI sc 232 mm |
| Maintenance Interval | 1 h/month |
| Material | Body: Stainless Steel (1.4571, AISI 316Ti, UNS S31635), Optics: 1.4404, Gasket: FKM |
| Max Temperature | 80 |
| Measurement Method | Combined multiple beam alternating light method with infrared diode system and beam focusing. Turbidity (TRB): 2-channel 90º scattered light measurement in accordance with DIN EN ISO 7027, wavelength = 860 nm Solids (TSS): 90º and 120º scattered light measurement, eight channel multi-angle measurement system, with an integrated bubble and temperature compensating, wavelength = 860 nm |
| Model | TSS Vari sc |
| Mounting Configurations | VARIVENT |
| Operating Temperature Range | 0 – 80 °C |
| Parameter | Turbidity, Suspended Solids |
| Pressure Range | <16 bar or <160 m |
| Range | Turbidity (TRB): 0.001 – 9999 NTU Solids (TSS): 0.001 – 500 g/L |
| Repeatability | TSS content: < 4 % Turbidity: < 3 % |
| Response Time | 1 s < T90 < 300 s (adjustable) |
| Response Time T90 | 1 – 300 s adjustable |
| Special Notes | Installation note: Distance sensor–wall > 50 cm (Turbidity) > 10 cm (TSS) |
| Weight | approx. 1.5 kg |
| What’s included? | Turbidity & Suspended Solids sensor, user manual |
