Technical data

Thermometer
Measuring PrincipleResistance Temperature Detector
Characteristic / Applicationmetric style
modular temperature assembly
hygienic design
hygienic process connection
with neck
incl. thermowell / protection tube (metal)
Terminal headTA20A - aluminium - cover with screws
TA20B - plastics - screw cover
TA20D - aluminium - hinged cover high
TA20J - SS - deep-drawn w. or w/o. display
TA20R - SS - machined w. screw cover
TA20W - aluminium - cover w. snap fit
TA21E - aluminium - screw cover w. chain
Thermowell / protection tubebar stock (drilled)
Insert / probemineral insulated (MI), flexible
Outer diameter protection tube3,00 mm ...13,00 mm
(0,12'' ...0,51'')
Max. immersion length on requestup to 600,00 mm (23,62'')
Material protection tube/ thermowell1.4435 (316L)  
Optional coatingTantal
Process connectionweld in version
hygienic:
welded (cylindircal)
welded (spherical)
Tip shapereduced
Surface roughness Ra0,4 μm (15,7 μin.)
0,8 μm (31,5 μin.)
Operating temperature rangePT 100:
-50 °C ...250 °C
(-58 °F ...482 °F)
Max. process pressure (static)at 20 °C: 170 bar (2.466 psi)
Accuracyclass A acc. to IEC 60751
1/3 DIN class B acc. to IEC 60751
Response timedepending on configuration
t50 = 4 s
t90 = 11 s
Integration head transmitteryes (4 … 20 mA; HART; PROFIBUS PA; FOUNDATION FIELDBUS)
Ex - approvalsATEX II
NEPSI
IECEx
CertificationGost Metrology
FDA
3A
SIL (transmitter only)