Ranging from 0.01 NTU to 1000 NTU with a resolution in the 0-10 NTU range of 0.001 NTU, the TurbSense® online turbidity meter provides:
- Excellent resolution – 0.001 NTU
- The simplicity of a probe
- Great value for money
- Long term reliability
- AutoClean capability
- Solid Secondary Standards – 0.9 NTU and 18 NTU
- AutoClean solid state optical sensor – no moving parts
- Single point calibration – very easy to use
- Stable and reliable – excellent process control
- Suitable for all potable, waste and process waters between 0 NTU and 1000 NTU
- ‘Maintenance free’ – low cost of ownership
- No ‘zero’ required – improved accuracy at the low end
- Several flow cell mounting options – easy installation
- Up to 1 year between calibration – very little drift
- Up to 10 bar – for inline operation
- 0.001 NTU resolution
- Automatic debubbling and bubble removal solutions – no interference from bubbles
- Available with different controllers – controlling costs, remote access, multi-sensor, multi-parameter options
Anywhere where the measurement range is 0.01-1000 NTU (approx 0-2000 mg/l, application dependent) is a suitable application for the TurbSense® online turbidity meter.
Traditional online turbidity monitoring applications where the TurbSense® is particularly suited:
- Raw water inlet
- Settled water turbidity
- Final water turbidity
- Wastewater effluent turbidity
- Fire hydrant monitoring
- Swimming pool clarity monitoring
Calibration of the TurbSense® is simple and fast. Due to the patented method of measuring turbidity, calibration is only required every year or when a calibration check suggests that the calibration has changed. There are three ways to calibrate the TurbSense®.
The first is to place the sensor probe into a primary calibration standard inside the calibration chamber supplied. This primary calibration solution is likely to be a solution of Formazin or a suspension of Latex beads of known turbidity.
The second is by using a Secondary Standard from Pi. This is a solid that when placed against the end of the TurbSense® will give a response of a known turbidity (this secondary standard can be used to calibrate the turbidity sensor and also to provide a check of the calibration already in the probe).
The third way to calibrate a turbidity meter is to measure the turbidity of the sample using a handheld turbidity meter and using that result to calibrate the TurbSense®.
Each sensor has a light source, a side detector for the measurement of scattered light from the sample and a reference detector for monitoring the light output. The light source is a long-life IR LED emitter suitable for 15 years continuous use. By varying the light output it is possible to correct the signal for window fouling, zero, zero drift and electronics drift. This patented technique is how the TurbSense® breaks all norms for a probe based sensor in terms of performance.
The probes are made of stainless steel and sapphire so can work almost anywhere. An AutoClean flushing system can be included to keep the optical surfaces clean, thereby reducing maintenance to a potential ‘maintenance free’.
The TurbSense® online turbidity meter is suitable for dip monitoring and mounting in a debubbling flow cell whch can be pressured or not, depending on the likelihood of there being nucleating bubbles. Entrained bubbles can be removed using the debubbler.