Omnigrad M TR13, TC13
8
Tested in accordance with IEC 60751 in flowing water (0.4 m/s at 30 °C):
Insert:
Sensor type
Diameter ID
Response time
Thin film (TF)
iTHERM
®
StrongSens
6 mm (0.24 in)
t
50
<3.5 s
t
90
<10 s
TF Sensor
3 mm (0.12 in)
t
50
2.5 s
t
90
5.5 s
6 mm (0.24 in)
t
50
5 s
t
90
13 s
WW Sensor
3 mm (0.12 in)
t
50
2 s
t
90
6 s
6 mm (0.24 in)
t
50
4 s
t
90
12 s
Thermocouple (TPC100)
grounded
3 mm (0.12 in)
t
50
0.8 s
t
90
2 s
6 mm (0.24 in)
t
50
2 s
t
90
5 s
Thermocouple (TPC100)
ungrounded
3 mm (0.12 in)
t
50
1 s
t
90
2.5 s
6 mm (0.24 in)
t
50
2.5 s
t
90
7 s
Response time for the sensor assembly without transmitter.
Insulation resistance
• RTD:
Insulation resistance according to IEC 60751 > 100 MΩ at 25 °C between terminals and sheath
material measured with a minimum test voltage of 100 V DC
• TC:
Insulation resistance according to IEC 1515 between terminals and sheath material with a test
voltage of 500 V DC:
– > 1 GΩ at 20 °C
– > 5 MΩ at 500 °C
Dielectric strength
Tested at a room temperature for 5 s:
• 6: ≥1
000 V DC between terminals and insert sheath
• 3: ≥250 V DC between terminals and insert sheath
Self heating
RTD elements are passive resistances that are measured using an external current. This
measurement current causes a self-heating effect in the RTD element itself which in turn creates an
additional measurement error. In addition to the measurement current, the size of the measurement
error is also affected by the temperature conductivity and flow velocity of the process. This self-
heating error is negligible when an Hauser iTEMP
®
temperature transmitter (very small
measurement current) is connected.
Calibration
Hauser provides comparison temperature calibration from
–80 to +1
400 °C (–110 to +2
552 °F) based on the International Temperature Scale (ITS90).
