Data Sheet
Pressure transmitter
Type MBS 3300 and MBS 3350
For high temperature marine applications
The compact high temperature pressure transmitter is designed for use in almost all marine applications, and offers a reliable pressure measurement, even under harsh environmental conditions.
The flexible pressure transmitter programme covers different output signals, absolute or gauge (relative) versions, measuring ranges from 0 – 1 to 0 – 600 bar and a wide range of pressure and electrical connections.
A robust design, an exellent vibration stability, and a high degree of EMC / EMI protection equip the pressure transmitter to meet the most stringent marine requirements.
Features
• Designed for use in severe maritime environments
• For medium and ambient temperatures up to 125 °C
• All standard output signals:
◦ Ratiometric 10 - 90% of supply ◦ 4 – 20 mA
◦ 0 – 5 V, 1 – 5 V, 1 – 6 V, 0 – 10 V
• Enclosure and wetted parts of AISI 316L
• A wide range of pressure and electrical connections
• Fully digitally compensated
• For use in ATEX Zone 2 explosive atmospheres
• UL approved
AI308943247202en-000302
Pressure transmitter, type MBS 3300 and MBS 3350
Applications
Application and media conditions (MBS 3350)
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Pulse-snubber |
Application
Cavitation, liquid hammer and pressure peaks may occur in liquid …lled hydraulic systems with changes in flow velocity, e.g. fast closing of a valve or pump starts and stops.
The problem may occur on the inlet and outlet side, even at rather low operating pressures.
Media condition
Clogging of the nozzle may occur in liquids containing particles. Mounting the transmitter in an upright position minimizes the risk of clogging, because the flow in the nozzle is limited to the startup period until the dead volume behind the nozzle ori…ce is …lled.
The media viscosity has only little effect on the response time. Even at a viscosities up to 100 cSt, the response time will not exceed 4 ms.
© Danfoss | Climate Solutions | 2021.06 |
AI308943247202en-000302 | 2 |
Pressure transmitter, type MBS 3300 and MBS 3350
Product speci€cation
Technical data
Table 1: Performance (EN 60770)
Accuracy (incl. non-linearity, hysteresis and repeatability) |
≤ ± 0.5% FS (typ.) |
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≤ ± 1.0% FS (max.) |
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Non-linearity BFSL (conformity) |
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≤ ± 0.2% FS |
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Hysteresis and repeatability |
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≤ ± 0.1% FS |
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Thermal error band (compensated temperature range) |
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≤ ± 1.0% FS |
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Response time |
Liquids with viscosity < 100 cSt |
< 4 ms |
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Air and gases (MBS 3350) |
< 35 ms |
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Overload pressure (static) |
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6 × FS (max. 1500 bar) |
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Burst pressure |
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6 × FS (max. 2000 bar) |
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Power-up time |
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< 50 ms |
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Durability, P: 10 – 90% FS |
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> 10 × 106 cycles |
Table 2: Electrical speci€cations
Nom. output signal (short-circuit protected) |
4 – 20 mA |
0 – 5 V, 1 – 5 V, |
0 – 10 V |
10 – 90% of supply voltage |
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1– 6 V |
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Supply voltage [UB], polarity protected |
9 – 32 V DC |
9 – 32 V DC |
15 – 32 V DC |
4.5 – 5.5 V DC |
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(12 / 24 V DC nom.) |
(12 / 24 V DC nom.) |
(12 / 24 V DC nom.) |
(5 V DC nom.) |
Supply – current consumption |
– |
≤ 5 mA |
≤ 8 mA |
≤ 5 mA - 5 V |
Supply voltage dependency |
< 0.1% FS / 10 V |
< 0.05% FS / 10 V |
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Ratiometricity |
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< 0.05% FS / 4.5 - 5.5 V |
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0-5 V: 5.75 V |
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Output limitation |
22.4 mA |
1-5 V: 5.6 V |
0-10 V: 11.5 V |
≈ supply voltage |
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1-6 V: 6.75 V |
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Sink / Source |
– |
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< 1 mA |
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Load [RL] (load connected to 0 V) |
RL ≥ (UB- 9 V) / 0.02 A |
RL ≥ 10 kΩ |
RL ≥ 15 kΩ |
RL ≥ 10 kΩ at 5 V DC |
Table 3: Environmental conditions
Sensor operating temperature (depending on gasket |
4 – 20 mA |
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-40 – 100 °C |
10 – 90% of supply voltage |
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-40 – 125 °C |
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material) |
0 – 5 V, 1 – 5 V, 1 – 6 V, 0 – 10 V |
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Media temperature range |
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-40 – 125 °C |
Ambient temperature range (depending on electrical connection) |
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See Electrical connections |
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Compensated temperature range |
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0 – 100 °C |
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Transport/storage temperature range |
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-50 – 125 °C |
EMC – Emission |
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EN 61000-6-3 |
EMC – Immunity |
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EN 61000-6-2 |
Insulation resistance |
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> 100 MΩ at 500 V DC |
Mains frequency test |
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Based on SEN 361503 |
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Sinusoidal |
15.9 mm-pp, 5 Hz – 25 Hz |
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IEC 60068-2-6 |
Vibration stability |
20 g, 25 Hz – 2 kHz |
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Random |
7.5 grms , 5 Hz – 1 kHz |
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IEC 60068-2-64 |
Shock resistance |
Shock |
500 g / 1 ms |
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IEC 60068-2-27 |
Free fall |
1 m |
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IEC 60068-2-32 |
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Enclosure (depending on electrical connection) |
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See Electrical connections |
Table 4: Explosive atmospheres |
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Zone 2 applications(1) |
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EN60079-0; EN60079-7 |
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(1) When used in ATEX Zone 2 areas at low temperatures the cable and plug must be protected against impact.
© Danfoss | Climate Solutions | 2021.06 |
AI308943247202en-000302 | 3 |