TurbiGuard

Technical Description – TurbiGuard

In-line Turbidity for Food and Beverage with Medium to High Turbidity

The brewing, wine, sugar and beverage industries have the Sigrist TurbiGuard specifically for monitoring medium to high turbidity, in hygienic process liquids. The TurbiGuard measures turbidity using the absorption method and is typically mounted inline using a Varivent connection. The focus of the TurbiGuard is for easy installation and extremely low maintenance. There are no seals to replace and the calibration only requires a zero setting.

A Closer Look

Not having to perform the regular replacement of seals will save you considerable time and money. The seal-less design with sapphire windows is a well-established feature of Sigrist products. This allows the TurbiGuard to be to be used in many process applications for turbidity measurement.

The TurbiGuard is factory calibrated with a true, linearized Formazine calibration. From the time you take delivery, only a zero check is required to confirm its calibration.

For simple applications and system integration the instrument configuration and communication can be easily done using the serial interface in combination with the existing outputs. For a local operator interface the optional control unit SICON with touch screen technology and colour display can be connected.

Typical Applications Include:

• Turbidity measurement in beer, fruit juices, drinks etc.
• Monitoring of centrifuges, separators, whirlpools
• Monitoring for breakthrough
• Yeast dosing

Specs at a Glance

Wavelength for Turbidity                                              LED 880 nm

Measuring principle                                                        Absorption

Scale ranges                                                                       0- 100 / 0 – 1,000 EBC

0 – 400 / 0 – 4,000 NTU

Resolution                                                                          0.5 EBC / 2 NTU

Installation                                                                          In-line Varivent fitting

Enclosure                                                                            Stainless steel 1.4301

Protection index                                                               IP66

Sample temperature                                                      -10 to +100 °C

Standard Outputs                                                                            1 x 4 – 20 mA

2 x Open-Collector Transistor

Pipe diameter                                                                    ≥ DN 40

Sample pressure                                                              ≤ 1 MPa (10 bar) @ 100 °C

Interfaces                                                                           Profibus DP or Modbus RTU (option)

Cleaning                                                                               CIP/SIP compatible up to 120 °C @ 2h

Windows material                                                            Sapphire

Control Units                                                                     SICON or SICON M (for multiple Sigrist instruments)