ALVIM Biofilm Sensor

Real-time, online, continuous biofilm monitoring

Bacteria can colonize in structures in contact with water, like pipelines, tanks, machinery, etc., in a very short time if appropriate countermeasures are not applied.

The ALVIM sensor is able to detect bacterial settlement from the moment microbial attachment starts (down to 1% of surface covered by microorganisms). Real-time data is used to make decisions on when to apply biofilm removal enzymes, and to manually or automatically adjust and optimize cleaning treatments or biocide treatments.

Advantages of this technology

Early warning detection of bacterial biofilm development

While fouling sensors detect “generic deposit”, ALVIM probes detect bacterial biofilm

Optimization of cleaning and sanitation treatments

Easy to install, easy to operate

Virtually maintenance-free probe

Real-time, continuous biofilm monitoring

High sensitivity

Modular, scalable system

Alvim Technical Information

Code	Description
AS01S3	ALVIM biofilm monitoring sensor 4-20 mA and RS485/MODBUS RTU, including – monitoring equipment & cable heads
ALVIM_CB_USB	Power unit and RS485/USB communication card – One power unit per 4 sensors

Code

Description

AS01S3

ALVIM biofilm monitoring sensor 4-20 mA and RS485/MODBUS RTU, including – monitoring equipment & cable heads

ALVIM_CB_USB

Power unit and RS485/USB communication card – One power unit per 4 sensors

Connection to the process:	Varivent ® Type N
Sensitivity:	100% of surface covered by biofilm (i.e. the first bacterial layer)
Operating conditions
Temperature:	-10<T<+150ºC (to monitor biofilm growth: +2<T<+40ºC)
Oxygen:	>1ppm
Pressure:	<10bar
Conductivity:	>30µS/cm
Power supply:	12V DC20%
Data communication protocols:	4-20mA and RS485/MODBUS RTU
Wiring:	Standard 6-wire electric cable

Connection to the process:

Varivent ® Type N

Sensitivity:

100% of surface covered by biofilm
(i.e. the first bacterial layer)

Operating conditions

Temperature:

-10<T<+150ºC
(to monitor biofilm growth: +2<T<+40ºC)

Oxygen:

>1ppm

Pressure:

<10bar

Conductivity:

>30µS/cm

Power supply:

12V DC20%

Data communication protocols:

4-20mA and RS485/MODBUS RTU

Wiring:

Standard 6-wire electric cable

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