IMC C SERIES User Manual

© 2018 imc Test & Measurement GmbH
imc C-SERIES - Manual, Version 4 R 3 - 2018-10-19
30 Properties of the imc C-SERIES
4.6.1.1 Thermocouples as per DIN and IEC
The following standards apply for the thermocouples, in terms of their thermoelectric voltage and
tolerances:
Thermocouple
Symbol
max. temp.
Defined up to
(+)
(-)
DIN IEC 584-1 (2014-07)
Iron-constantan (Fe-CuNi)
J
750°C
1200°C
black
white
Copper-constantan (Cu-CuNi)
T
350°C
400°C
brown
white
Nickel-chromium-Nickel (NiCr-Ni)
K
1200°C
1370°C
green
white
Nickel-chromium-constantan (NiCr-CuNi)
E
900°C
1000°C
violet
white
Nicrosil-Nisil (NiCrSi-NiSi)
N
1200°C
1300°C
red
orange
Platinum-Rhodium-platinum (Pt10Rh-Pt)
S
1600°C
1760°C
orange
white
Platinum-Rhodium-platinum (Pt13Rh-Pt)
R
1600°C
1760°C
orange
white
Platinum-Rhodium-platinum (Pt30Rh-Pt6Rh)
B
1700°C
1820°C
n.a.
n.a.
DIN 43710
Iron-constantan (Fe-CuNi)
L
600°C
900°C
red
blue
Copper-constantan (Cu-CuNi)
U
900°C
600°C
red
brown
If the thermo-wires have no identifying markings, the following distinguishing characteristics can help:
· Fe-CuNi: Plus-pole is magnetic
· Cu-CuNi: Plus-pole is copper-colored
· NiCr-Ni: Minus-pole is magnetic
· PtRh-Pt: Minus-pole is softer
The color-coding of compensating leads is stipulated by DIN 43713. For components conforming to IEC
584: The plus-pole is the same color as the shell; the minus-pole is white.
4.6.1.2 Pt100 (RTD) - measurement
Aside from thermocouples, RTD (Pt100) units can be directly connected in 4-wire-configuration (Kelvin
connection). An additional reference current source feeds a chain of up to 4 sensors in series.
With the imc Thermo connector, the connection terminals are already wired in such a way that this
reference current loop is closed "automatically".
If fewer than 4 Pt100 units are connected, the current-loop must be completed by a wire jumper from
the "last" RTD to -I4.
If you dispense with the "support terminals" (±I1 to ±I4) provided in the imc Thermo connector for 4-wire
connection, a standard terminal connector or any DSUB-15 connector can be used. The "current loop"
must then be formed between +I1 (DSUB Pin 9) and -I4 (DSUB Pin 6).

IMC C SERIES Specifications

General

Brand	IMC
Model	C SERIES
Category	Measuring Instruments
Language	English