Omnigrad M TR13, TC13
3
Measuring system
A
°C
=
20-250V DC/AC
»
50/60Hz
4...20 mA
24V DC / 30 mA
B
C
A0010442
1
Application example
A
Mounted thermometer with head transmitter installed.
B
RIA16 field display unit - The display unit records the analog measuring signal from the head transmitter and
shows this on the display. The LC display shows the current measured value in digital form and as a bar graph
indicating a limit value violation. The display unit is looped into the 4 to 20 mA circuit and gets the required
energy from there. More information on this can be found in the Technical Information (see "Documentation").
C
Active barrier RN221N - The RN221N (24 V DC, 30 mA) active barrier has a galvanically isolated output for
supplying voltage to loop-powered transmitters. The universal power supply works with an input supply
voltage of 20 to 250 V DC/AC, 50/60 Hz, which means that it can be used in all international power grids.
More information on this can be found in the Technical Information (see "Documentation").
Design
E
1
2
3
4
5
6
6a
6b
IL
IL
L
10 mm
(0.4 in)
7
A0010444
2
Thermometer design
1
Insert with head transmitter mounted (example with 3 mm (0.12 in))
2
Insert with terminal block mounted (example with 6 mm (0.24 in))
3
Terminal head
4
Thermowell
5
Process conneciton: flange
6
Various tip shapes - detailed information see chapter "Tip shape":
6a Reduced or tapered for inserts with 3 mm (0.12 in)
6b Straight or tapered for inserts with 6 mm (0.24 in)
7
Jacket (protective sheath)
E
Extension neck length
L
Immersion length
IL
Insertion length
Thermometers from the Omnigrad M TR13 and TC13 series have a modular design. The terminal
head is used as a connection module for the mechanical and electrical connection of the insert. The
position of the actual thermometer sensor in the insert ensures that it is mechanically protected. The
insert can be exchanged and calibrated without interrupting the process. Either ceramic terminal
blocks or transmitters can be fitted to the internal base washer.
