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Alfa Laval Temperature Transmitter

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The temperature transmitter that fits your sanitary process

Temperature Transmitter

Application
Temperature TransmitterThe Alfa Laval temperature transmitter is designed to fulfill the demands in Sanitary and pharmaceutical production

Main features are:
Wetted parts in AISI316L, stainless steel
Compact, and hygienic design (3A / FDA and EHEDG compliant)
Measuring range: -20 to 150 C
Sensor element: PT100 sensor with 4 wire connection to transmitter
Built-in transmitter with 4-20 mA output
High accuracy

Standard range
The Alfa Laval temperature transmitter features as standard a stainless steel field housing in excellent finish, suitable for sanitary applications. All process connections are as standard hygienic connections with high cleanability and bacteria tightness, as an option wetted parts can be electropolished down to Ra>0.4μ.

The design of the sensor tip ensures low response times and accurate measurements. The output can be supplied either as a standard 4...20 mA, 4...20 mA/HART output or Profi bus PA interface.

Working principle
The Alfa Laval temperature transmitter relies on a fast response Pt100 sensor tip. The sensor element is as standard a DIN A sensor element which is connected with 4 wires to the build in transmitter.
This ensures full resistance compensation and enables reliable and accurate measurements of process temperatures with a standard analogue output of 4-20 mA
Temperature Transmitter Principal

Technical data
Measuring ranges:
0 to 150C
-10 to 100 C
-20 to 150 C

Resolution: . . . . . . . . . . . . . . . . . . .12 bit

Accuracy
Pt 100 element: . . . . . . . . . . . . . . . .(0.15+0.002 * t) [C ]
Transmitter accuracy input : . . . . . . . .0.1% of span
Transmitter accuracy output : . . . . . . .0.1 C

Mechanical data
Process connections:
Clamp DN 38 (ISO2852) / Clamp DN 40 (DIN32676)
Clamp DN 50 (ISO2852) / Clamp DN 51 (DIN32676)

Sensor length: . . . . . . . . . . . . . . . . .from50mmto 300mm

Materials
Wetted parts: . . . . . . . . . . . . . . . . .AISI 316
Fieldhouse: . . . . . . . . . . . . . . . . . . .AISI 304

Operating temperature
Wetted parts: . . . . . . . . . . . . . . . . .-50 to 250C
Ambient temperature: . . . . . . . . . . . .-20 to 85 C

Protection class : . . . . . . . . . . . . . . .IP 67
Maxmedia pressure: . . . . . . . . . . . . .16 bar

Weight
sensor: . . . . . . . . . . . . . . . . . . . . . .approx 500 gr.

Certificates
CE marked
3A (option)
3.1B certificate (option)
Calibration certificate, 5 point calibration (option)

Electrical data
The integrated 4 to 20 mA loop powered transmitter features as standard galvanic isolation between input and output.

Power supply: . . . . . . . . . . . . . . . . .6.5 to 36 Vdc
Output: . . . . . . . . . . . . . . . . . . . . .4-20 mA, 2 wire Profibus DP 4-20 mA HART, 2 wire
Connection: . . . . . . . . . . . . . . . . . .M12 plug or M16 cable gland

Response time (measured in water):
Sensor tip 6mm . . . . . . . . . . . . . . .3.0 sec.
Sensor tip 4mm . . . . . . . . . . . . . . .2.5 sec.
Sensor tip 3mm . . . . . . . . . . . . . . .1.3 sec.
Temperature Transmitter Elec
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