Application
The Alfa Laval thermometer is designed to fulfil the demands of local
temperature indication in sanitary and pharmaceutical production.
Main features are: Hygenic connection and robust design, high
resistance to corrosion, damp, vibrations and wear. Accurate and long
term measurement stability with quick response time. Due to their
first class accuracy and long term measurement stability, no yearly
calibration is needed. Available in two sizes.
Standard range
Our standard range comes with a liquid-filled housing. It includes an
80 or 100 mm diameter dial and built-in temperature compensator.
The housing is made of stainless steel (AISI 304) and the clamp
connection and sensor tube is made of stainless steel (AISI 316). As
an option, it can be delivered electropolished and with 3A, 3.1 or
calibration certificate.
TECHNICAL DATA
Accuracy: . . . . . . . . . . . . . . . . . . . . . . .Class 1.0
Dial size: . . . . . . . . . . . . . . . . . . . . . . . .80 mm, 100 mm
Measuring ranges
0 to 60°C
0 to 100°C
0 to 120°C
0 to 160°C
0 to 200°C
-20 to 120°C
Working principle
The function is based on expansion of the filling medium in the closed
sensor. The change of pressure actuates the spiral spring driving the
dial movement. A built-in bimetallic coil compensates automatically
for the effect on the reading caused by change of the ambient
temperature. The filling media is an inert gas which is 100% neutral
to the environment. This makes the thermometer ideal for use in food
and pharmaceutical industries.
Certificates
– FDA conformity declaration (option)
– Calibration certificate (option)
– 3.1 certificate (option)
PHYSICAL DATA
Sensor length (L): . . . . . . . . . . . . . . From 50 mm to 300 mm
Materials
Wetted parts: . . . . . . . . . . . . . . . . . AISI 316
Casing: . . . . . . . . . . . . . . . . . . . . . AISI 304
Glass: . . . . . . . . . . . . . . . . . . . . . 4 mm thick glass
Filling
Sensor tube: . . . . . . . . . . . . . . . . . Inert FDA approved gas
Housing: . . . . . . . . . . . . . . . . . . . . FDA approved silicone oil
Weight
Thermometer with diaphragm: . . . . . . Approx. 1.5 kg
Process connections
Clamp DN38 (ISO2852) / Clamp DN40 (DIN32676)
Clamp DN50 (ISO2852) / Clamp DN51 (DIN32676)
Operating temperature
Wetted parts: . . . . . . . . . . . . . . . . . up to 250°C
Casing: . . . . . . . . . . . . . . . . . . . . . -40 to 100°C