Data Sheet
Temperature sensor
Type MBT 5550
With the MBT 5550 we have combined our temperature transmitter with a detachable thermowell MBT 120 enabling replacement of the transmitter while the application is in operation.
The MBT 5550 is designed for use in harsh environments where reliable, robust, and accurate equipment is required.
Features
• Designed for use in harsh marine & industrial environments where reliable, robust, and accurate equipment is required
• All metal enclosure parts made of stainless steel (AISI316)
• Output signals: 4 – 20 mA or Ratiometric 10 – 90%
• A wide selection of process and electrical connections are available
• Compact design
• Measuring range -15 to 200 °C
• Based on Pt 1000 sensor technology
AI391832931068en-000102
Temperature sensor, Type MBT 5550
Product speci€cation
Technical data
Table 1: Main speci€cations
Features |
Description |
Process connections |
See page Ordering |
Measuring ranges |
Any combinations between -15 ‒200°C |
Minimum span |
50 °C |
Output signals |
4 – 20 mA or Ratiometric 10 – 90% |
Electrical connections |
See page Electrical connection |
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Table 2: Performance
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Indicative response times |
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Features |
Water 0.2 m/s |
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Air 1 m/s |
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t0.5 |
t0.9 |
t0.5 |
t0.9 |
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ø8 mm |
10 s |
35 s |
95 s |
310 s |
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Accuracy |
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Typical: < ± 0.5% FS, Maximum: < ± 1.0% FS |
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Max. load protection tube |
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100 bar |
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Table 3: Electrical speci€cations
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Features |
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Nom. Output signal (short-circuit protected) |
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4 – 20 mA |
Ratiometric 10 – 90% of supply voltage |
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Supply voltage [US] polarity protected |
10 – 30 V DC |
4.75 – 8 V DC |
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5 V DC (Nom.) |
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Supply – current consumption |
- |
< 4 mA at 5 V DC |
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Insulation resistance |
> 100 MΩ at 100 V DC |
> 100 MΩ at 100 V DC |
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Supply voltage dependency |
< ± 0.05% FS/10 V |
- |
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Current limitation |
30 mA |
- |
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Output impedance |
- |
< 25 Ω |
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Load [RL] |
RL<(US-10) / (0.02 A) ohm |
RL> 5 kohm at 5 V DC |
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Table 4: Environmental conditions
Features |
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Description |
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Media temperature |
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-15 ‒200 °C |
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Temperature on electronics(1) |
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-40 – 85 °C |
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Transport temperature range |
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-50 – 85 °C |
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EMC – Emmision |
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EN 61000-6-3 |
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EMC – Immunity |
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EN 61000-6-2 |
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Sinusoidal 15.9 mm-pp, 5 – 25 Hz |
- |
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Vibration stability |
4 g, 25 Hz – 2 kHz |
IEC 60068-2-6 |
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Random 7.5 gms, 5 Hz – 1 kHz |
IEC 600868-2-34, IEC 60068-2-36 |
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Shock resistance |
Shock 500 g/1 ms |
IEC 60068-2-27 |
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Free fall |
IEC 60068-2-32 |
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Enclosure (depending on electrical connections) |
See page Electrical connection |
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(1) Temperature of the electronics depends on the media temperature, extension length, ambient temperature and air velocity.
Table 5: Mechanical characteristics
Features |
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Description |
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Materials |
Wetted parts |
W.no. 1.4571 (AISI 316 Ti) |
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Enclosure |
W.no. 1.4404 (AISI 316 L) |
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Measuring insert |
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Fixed |
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Net weight (depending on design) |
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0.15 ‒0.2 kg |
© Danfoss | Climate Solutions | 2022.03 |
AI391832931068en-000102 | 2 |
Temperature sensor, Type MBT 5550
Electrical connection
Table 6: Electrical connection
EN 175301-803 |
AMP Econoseal |
IEC 947-5-2 |
Flying leads |
2 m screened cable |
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J series (male) |
M12 × 1 |
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Enclosure |
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IP65 |
IP67 |
IP67 |
IP67 |
IP67 |
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Materials |
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Glass ‡lled polyamid, PA 6.6 |
Glass ‡lled polyamid, PA 6.6 |
Glass ‡lled polyamid, PA 6.6 |
Glass ‡lled polyamid, PA 6.6 |
PUR |
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Electrical connection, 4 – 20 mA output (2 wire) |
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Pin 1: +supply |
Pin 1: +supply |
Pin 1: +supply |
Red wire: +supply |
Red wire: +supply |
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Pin 2: ÷supply |
Pin 2: ÷supply |
Pin 2: Not used |
Black wire: ÷supply |
White wire: ÷supply |
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Pin 3: Not used |
Pin 3: Not used |
Pin 3: Not used |
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Red/black wire: Not used |
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Earth: connected to MBT |
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Pin 4: ÷supply |
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Screen: connected to MBT |
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housing |
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housing |
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Electrical connection, Ratio metric (3-wire) 10 – 90% |
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Pin 1: +supply |
Pin 1: +supply |
Pin 1: +supply |
Red wire: +supply |
Red wire: +supply |
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Pin 2: ÷supply |
Pin 2: ÷supply |
Pin 2: not used |
Black wire: ÷supply |
White wire: ÷supply |
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Pin 3: Output |
Pin 3: Output |
Pin 3: Output |
Blue wire: Output |
Red/black wire: Output |
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Earth: connected to MBT |
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Pin 4: ÷supply |
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Screen: connected to MBT |
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housing |
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housing |
© Danfoss | Climate Solutions | 2022.03 |
AI391832931068en-000102 | 3 |