Data sheet
Exhaust gas temperature sensor
MBT 5114
MBT 5114 is a series of exhaust gas temperature
sensors used for performance optimization and
environmental impact control of large 4 stroke
engines.
By utilizing RTD sensing elements the MBT 5114
provides a modern and total cost attractive
alternative to the thermo couple exhaust gas
sensors.
Features
Approvals
• For measuring exhaust gas in stationary and
marine:
– diesel and gas engines
– turbines
– compressors
• Up to 600 °C media temperature (peak 700 °C)
• Fixed or adjustable insertion length
Lloyds Register of Shipping, LR
Germanischer Lloyd, GL
Det Norske Veritas, DNV
Registro Italiano Navara, RINA
• 1 or 2 Pt 1000 elements
• No need for special compensation cable.
• Less noise sensitive
• No cold junction compensation
• Resistant to moisture (works from day one)
• No polarity on the cable (easy to install)
• Linear signal
Nippon Kaiji Kyokai, NKK
American Bureau of Shipping, ABS
Korean Register of Shipping, KRS
China Classification Society, CCS
Bureau Veritas, BV
© Danfoss | DCS (im) | 2016.12
IC.PD.P30.T3.02 | 520B7543 | 1
Data sheet | Exhaust gas temperature sensor, MBT 5114
Technical data
Main specifications
Measuring range -50 – 600 °C
Short time temperature (15 min.) 650 °C
Max. peak temperature (1 min.) 700 °C
Element type Pt 1000
Tolerances EN 60751, class B
Mechanical and enviromental specifications
Ambient temperature
Vibration stability
Materials Protection tube W. no. 1.4571 (AISI 316 Ti)
Enclosure IP65 according to IEC 60529
Shock 100 g / 6 ms
Vibrations 4 g sine function 2 – 100 Hz, measured acc. to IEC 60068-2-6
Max 200 °C on the sensor housing, cable depending on type (See Page 3)
Response times
Indicative response times. Typical measured values.
Type
MBT 5114
Water 0.2 m/s Air 6 m/s
t
0.5
1 s 3.5 s 15 s 50 s
t
0.9
t
0.5
t
0.9
Mounting
The free insertion length may not exceed
25 × sensor diameter, e.g. 150 mm
with a 6 mm sensor diameter.
However, it is generally recommended that the
sensor is supported close to the tip either by the
mounting hole or by a sensor pocket.
The sensor might break in case it is mounted
without a proper support in a vibrating
application like exhaust gas monitoring.
The free insertion length is defined as the
part of the outermost sensor end that is not
supported by a pocket or a drilled hole in the
machinery.
The free length of the cable must be supported
for every ½ meter (= 100 × cable diameter).
Especially for turbo inlet/outlet applications it
is necessary to mount the sensor in a pocket to
prevent sensor damage due to high media
velocity and vibrations.
2 | 520B7543 | IC.PD.P30.T3.02
© Danfoss | DCS (im) | 2016.12
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