Mineral-Insulated Thermocouples
According to DIN 43710
and DIN EN 60584
• For temperatures between -200 to +1200 °C
• Flexible sheath cable with vibration-resistant measuring insert
• Protection tube diameter as of 0.5 mm
•Quick response time
• Application-specific insertion length
Due to their specific features, mineral-insulated thermocouples are used in chemical plants,
power plants, pipelines, engine building, and test rigs. Inside the flexible and thin-walled
sheathed cable, the thermowires are embedded in compressed and fire-resistant magnesium
oxide.
The good thermal transfer between the sheath and the thermocouple enables short response
times (t
guarantees a long operating life. The smallest bending radius is 5 times the outer diameter. With
a diameter of 0.5 to 2.0 mm, the minimum insertion length (EL) is ≥ 50 mm; with a diameter of
3.0 to 6.0 mm the EL is ≥ 100 mm.
The thermocouples are designed to be insulated from the sheath as standard. The measuring
insert is equipped with thermocouples (elements) according to DIN EN 60584 and/or DIN
43710. Versions with two thermocouples are also possible.
Test pressure: check for leaks at the measuring point at 40 bar (helium).
Leakage resistance: thermocouple against sheath at room temperature and lengths < 1 m
200 MΩ, with lengths ≥ 1 m 200 MΩ ×m.
as of 0.15 s) and excellent measuring accuracy. The vibration-resistant construction
0.5
Data Sheet 901210Page 1/11
Technical data
Terminal headForm B, diecast aluminum, M20 × 1.5; IP65, ambient temperature -40 to +100 °C
ConnectionCable ends stripped bare; alternatively available with ferrules, plug-in sleeves, or multi-pole electrical
Compensating cableSilicone, ambient temperature -50 to +180 °C
Process connectionThread, stainless steel 1.4571
Protection tubeStainless steel 1.4541, thermocouple type "L" and "J"
Adapter sleeve (end closure)As standard, the adapter sleeve (end closure) is designed up to 120 °C; it is available up to 300 °C upon
Measuring insertInsulated construction:
Response timesIn water with 0.4 m/s / in air with 2 m/s
TransmitterProgrammable transmitter, 4 to 20 mA / 20 to 4 mA output, data sheet 707010
2013-01-21/00073440
Form BUZ, diecast aluminum, M20 × 1.5; IP65, ambient temperature -40 to +100 °C
Form J, diecast aluminum, M16 × 1.5; IP65, ambient temperature -40 to +100 °C
Caution: reduced ambient temperature when using transmitters
connectors (e.g. thermal-voltage-free connector)
PTFE, ambient temperature 190 to +260 °C
Metal braiding, ambient temperature -20 to +350 °C
Inconel 2.4816 (Inconel 600), thermocouple type "K" and "N"
request.
1× Fe-CuNi "J", DIN EN 60584, class 2, operating temperature -200 to +800 °C
1× Fe-CuNi "L", DIN 43710, class 2, operating temperature -200 to +800 °C
1× NiCr-Ni "K", DIN EN 60584, class 2, operating temperature -200 to +1200 °C
1× NiCrSi-NiSi "N", DIN EN 60584, class 2, operating temperature -200 to +1200 °C
2× Fe-CuNi "L", DIN 43710, class 2, operating temperature -200 to +800 °C
2× NiCr-Ni "K", DIN EN 60584, class 2, operating temperature -200 to +1200 °C
2× NiCrSi-NiSi "N", DIN EN 60584, class 2, operating temperature -200 to +1200 °C
Ø 0.5 mm: water t
Ø 1.0 mm: water t
Ø 1.5 mm: water t
Ø 2.0 mm: water t
Ø 3.0 mm: water t
Ø 4.5 mm: water t
Ø 6.0 mm: water t
programmable transmitter, 4 to 20 mA / 20 to 4 mA and HART
Order details: Mineral-insulated thermocouples according to DIN 43710 and DIN EN 60584
(1) Basic type
901220/40
901220/41
Screw-in mineral-insulated thermocouple
with terminal head, form B
Push-in mineral-insulated thermocouple
with terminal head, form B
(2) Measuring insert / operating temperature in °C
x x10401× Fe-CuNi "J", operating temperature -200 to +800 °C, sheath material no. 1.4541
x x10421× Fe-CuNi "L", operating temperature -200 to +800 °C, sheath material no. 1.4541
x x10431× NiCr-Ni "K", operating temperature -200 to +1200 °C, sheath material no. 2.4816
x x10481× NiCrSi-NiSi "N", operating temperature -200 to +1200 °C, sheath material no. 2.4816
x x20422× Fe-CuNi "L", operating temperature -200 to +800 °C, sheath material no. 1.4541
x x20432× NiCr-Ni "K", operating temperature -200 to +1200 °C, sheath material no. 2.4816
x x20482× NiCrSi-NiSi "N", operating temperature -200 to +1200 °C, sheath material no. 2.4816
(3) Protection tube diameter D in mm
xx3Ø3mm
x x4.5Ø 4.5 mm (not for measuring insert type "N")
xx6Ø6mm
(4) Insertion length EL/NL in mm (50 to 50000 mm)
x x100100 mm
x x200200 mm
x x300300 mm
x x400400 mm
x x500500 mm
x x...Please specify in plain text (50 mm steps)
(5) Process connection
x000Without
x103Screw connection G 3/8
x104Screw connection G 1/2
(6) Extra codes
x x000Without
x x309Uninsulated construction (element welded to the base)
x x320Terminal head form BUZ
x x3311× programmable transmitter, 4 to 20 mA / 20 to 4 mA output, data sheet 707010
x x336
1× programmable transmitter, 4 to 20 mA / 20 to 4 mA and HART
®
interface output, data sheet 707010
(1)(2)(3)(4)(5)(6)
Order code----/, ...
a
Order example901220/40 - 1040 -3-100-104/000
a
List extra codes in sequence, separated by commas.
Order details: Mineral-insulated thermocouples according to DIN 43710 and DIN EN 60584
(1) Basic type
901250/32
901250/33
901250/34
Mineral-insulated thermocouple
with silicone-insulated compensating cable
Mineral-insulated thermocouple
with PTFE-insulated compensating cable
Mineral-insulated thermocouple
with compensation cable
that is metal-braided and insulated with glass-fiber
(2) Measuring insert / operating temperature in °C
x x x10401× Fe-CuNi "J", operating temperature -200 to +800 °C, sheath material no. 1.4541
x x x10421× Fe-CuNi "L", operating temperature -200 to +800 °C, sheath material no. 1.4541
x x x10431× NiCr-Ni "K", operating temperature -200 to +1200 °C, sheath material no. 2.4816
xx20422× Fe-CuNi "L", operating temperature -200 to +800 °C, sheath material no. 1.4541
xx20432× NiCr-Ni "K", operating temperature -200 to +1200 °C, sheath material no. 2.4816
(3) Protection tube diameter D in mm
x x x0.5Ø 0.5 mm
xxx1Ø1mm
x x x1.5Ø 1.5 mm
xxx2Ø2mm
xxx3Ø3mm
x x x4.5Ø 4.5 mm
xxx6Ø6mm
(4) Insertion length EL in mm (50 to 50000 mm)
x x x100100 mm
x x x200200 mm
x x x300300 mm
x x x400400 mm
x x x500500 mm
x x x...Please specify in plain text (50 mm steps)
(5) Compensating cable end
x x x11Ferrules according to DIN 46228 part 4 (standard)
x x x80Multi-pole electrical connector (specify type in plain text)
(6) Compensating cable length AL in mm (500 to 500000 mm)
x x x25002500 mm (standard)
x x x...Please specify in plain text (500 mm steps)
(7) Extra codes
x x000Without
x x309Uninsulated construction (element welded to the base)
x x317Compensating cable shielded
x x855Adapter sleeve (end closure) 300 °C
(1)(2)(3)(4)(5)(6)(7)
Order code-----/, ...
a
Order example901250/32 - 1042 -3-200-11- 2500 /000
a
List extra codes in sequence, separated by commas.