Alfa Laval Potentiometric Level Transmitter
The Alfa Laval Potentiometric level transmitter is designed specifically for small tanks containing highly viscous and pasty products, such as ketchup, honey and toothpaste.
Related Industries:
Food and beverage
Compact, hygienic design
The Alfa Laval Potentiometric level transmitter is designed specifically for small tanks containing highly viscous and pasty products, such as ketchup, honey and toothpaste.
All wetted parts are made of AISI 316L stainless steel and PEEK, and designed to withstand process temperatures between -20 and +140°C. Because these 3-A certifed transmitters can withstand high temperatures, they are well suited for use in Cleaning-in-Place (CIP) and Sterilization-in-Place (SIP) processes.
Ease of installation
The Alfa Laval Potentiometric level transmitters are easily mounted in top, bottom or angled position. Regardless of position, advanced integrated electronics enable automatic recognition of the transmitter output signal thus ensuring reading accuracy.
- Compact, hygienic design
- Easy of installation
- Designed specifically for small tanks
Application
The Alfa Laval potentiometric level transmitter is designed to fulfil
the demands in Sanitary and pharmaceutical production. The main
features are:
– Wetted parts in AISI316L, stainless steel and PEEK
– Compact, and hygienic design
– Process temperature -20 to 140°C
– Defined empty registration
– Local Led monitor in fieldhousing
– Insensitive to adhesive media
– Analogue output 4-20 mA
Standard range
The Alfa Laval potentiometric level transmitter is ideal for measurements
in small vessels with tough, pasty or strong adhesive media, such as
ketchup, honey, and toothpaste. The integrated electronics provide a
4-20 mA output signal and has incorporated automatic recognition of
top or bottom mounting position, Even angled installation is possible.
Due to the high temperature limit the Alfa Laval potentiometric level
transmitter is well suitable for CIP and SIP processes.
TECHNICAL DATA
Accuracy: . . . . . . . . . . . . . . . . . . . ±0.5% of FS
Resolution, input: . . . . . . . . . . . . . . 15 bit
Repeatability: . . . . . . . . . . . . . . . . . 0.1% of FS
Media conductivity: . . . . . . . . . . . . . Min 50 µS/cm
Protection class: . . . . . . . . . . . . . . IP67
Max media pressure: . . . . . . . . . . . . 16 bar
Electical data
Power supply: . . . . . . . . . . . . . . . . 18-36 Vdc
Power consumption max: . . . . . . . . . 200 mA
Output: . . . . . . . . . . . . . . . . . . . . 4-20 mA, max. 500 Ohm,
Connection: . . . . . . . . . . . . . . . . . M12 plug or M16 cable gland
Response time: . . . . . . . . . . . . . . . 10 ms
Important
Please observe that a non-linear conductivity in the media will affect
the accuracy of the measurement. If mounted in a non-conductive
tank such as a plastic tank a reference rod must be installed.
Certificates
3.1 certificate (option)
PHYSICAL DATA
Sensor length (L): . . . . . . . . . . . . . . 0 to 300 cm
Materials
Wetted parts: . . . . . . . . . . . . . . . . . AISI 316L
Fieldhouse: . . . . . . . . . . . . . . . . . . AISI 304
Operating temperature
Wetted parts: . . . . . . . . . . . . . . . . . -20 to 140°C
Fieldhousing: . . . . . . . . . . . . . . . . . -20 to 60 °C
Weight
Sensor: . . . . . . . . . . . . . . . . . . . . . Approx. 1500 gr.
Process connection
– Clamp DN50 (ISO2852) / Clamp DN51 (DIN32676)
– G1” (ISO228)
– DN32 (DIN11851)
– DN40 (DIN11851)
– DN50 (DIN11851)
Working principle
The Alfa Laval potentiometric level transmitter utilizes the potentiometric
measurement principle and can be used in all medias that have a
minimum conductivity of 50 ?S/cm. From the low resistive measuring
rod a high frequent current is fed through the medium to the tank wall.
The voltage between the rod and the tank wall is measured. This
output voltage is proportional to the tank filling level. The measurement
is unaffected by temperature and adhesive media.
Electrical data
The integrated electronics features as standard automatic top or
bottom mounting recognition, and LED´s for local readout of level.
Adjustment of measuring range is done via two push buttons and
LED‘s in field housing.
