Alfa Laval Temperature Transmitter
Alfa Laval Temperature Transmitter
Temperature transmitters provide accurate and reliable temperature measurement in hygienic and pharmaceutical production.
Related Industries:
Food and beverage, Home and Personal care
Fast, accurate temperature measurement
Alfa Laval temperature transmitters are compact hygienic measuring devices that provide accurate temperature measurement. Temperature transmitters cover a measuring range between -20 and 150 °C (-4°F and 302°F). The sensor tip design ensures fast response times and accurate measurements.
Hygienic temperature transmission
Compact in design, Alfa Laval temperature transmitters are authorized to carry the 3-A symbol and meet FDA and EHEDG standards.
Alfa Laval temperature transmitters feature stainless steel field housing with excellent surface finish, which make them suitable for use in hygienic applications. All wetted parts are made of AISI 316L stainless steel; as an option, wetted parts can be supplied with surfaces electropolished down to Ra>0.4. All process connections provide high cleanability and are tightly sealed to prevent entry of bacteria.
Temperature Transmitter Benefit
- Provide accurate temperature measurement
- Hygienic temperature transmission
- Stainless steel
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Operating principle The Alfa Laval temperature transmitter features a fast response PT100 sensor tip. The sensor element is as standard a DIN A sensor element with a 4-wire connection to the built-in transmitter. This ensures full resistance compensation and enables reliable and accurate measurements of process temperatures with a standard analog output of 4-20 mA. Accuracy typically ranges from ±0.25 °C to ±0.5 °C. A 4-20 mA HART® output or Profibus-PA interface is also available.
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Temperature Transmitter Application
The Alfa Laval temperature transmitter is designed to fulfil the demands
in hygienic and pharmaceutical production. The main features are:
- Wetted parts in AISI316L stainless steel
- Compact and hygienic design (3A / FDA and EHEDG compliant)
- Measuring range: -20 to 150°C
- Configurable touch display
- High accuracy < 0.1 °C
- Sample time: 0,7
Standard range
Standard stainless steel field housing in outstanding polish, fit for sanitary uses, makes the Alfa Laval temperature transmitter.
As an alternative wetly polished items can be electropolished down to Ra 0.4µm, all process connections are as standard hygienic connections with high cleanability and microbial tightness. Sensor tip design guarantees accurate measurements and low reaction times. Either a normal 4-20 mA, 4-20 mA/HART® output or Profi bus® PA interface can be provided as the output.
TECHNICAL DATA
Temperature Transmitter accuracy
0 to 100 °C < ± 0.39 °C
0 to 150 °C < ± 0.48 °C
-10 to 100 °C < ± 0.39 °C
-20 to 150 °C < ± 0.48 °C
Measuring ranges
0 to 100 °C
0 to 150 °C
-10 to 100 °C
-20 to 150 °C
Resolution: . . . . . . . . . . . . . 12 bit
Protection class: . . . . . . . . . IP 67
with cable gland IP69K with M12 connector
Max media pressure: . . . . . . . 100 bar
Electrical data
Power supply: . . . . . . . . . . . 8 to 35 Vdc
Output temperature: . . . . . . . Pt100
4-20 mA,
4-20 mA HART®
Relay: . . . . . . . . . . . . . . . . 2 galvanic insulated relays included in
the display (60V/70 mA)
Certificates
- 3.1 certificate (option)
- Calibration certificate, 5 point calibration (option)
PHYSICAL DATA
Sensor length (L): . . . . . . . . . . . . . . From 50 mm to 300 mm
Materials
Wetted parts: . . . . . . . . . . . . . . . . . AISI 316L
Fieldhouse: . . . . . . . . . . . . . . . . . . AISI 304 and PEEK
Surface roughnes:
Hygienic and non-hygienic versions: . . Ra ? 0.8 µm
Weight
Sensor: . . . . . . . . . . . . . . . . . . . . . Approx. 500 gr.
Operating temperature
Wetted parts: . . . . . . . . . . . . . . . . . -50 to 250°C
Ambient temperature: . . . . . . . . . . . -20 to 85°C
Ambient temperature
Pt output: -40 – 160 °C
Transmitter without display: -40 – 85 °C
Transmitter with display: -30 – 80 °C
Pt output: -40 – 160 °C
Transmitter wit display -40 – 85 °C
Elctropolished (option: Ra ? 0.4 µm