Danfoss Pressure Transmitter Type MBS 5100 and MBS 5150
For marine applications
Product Overview
The ship-approved, high-accuracy block pressure transmitter is designed for use in almost all marine applications. The MBS 5150, with an integrated pulse snubber, is suitable for marine applications with severe medium influences like cavitation, liquid hammer, or pressure peaks, offering reliable pressure measurement even under harsh environmental conditions.
Transmitters can be mounted directly on the MBV 5000 block test valve or via the threaded pressure connection. The program covers 4 – 20 mA output signal, absolute or gauge (relative) versions, with measuring ranges from 0 – 4 up to 0 – 400 bar. Excellent vibration stability, robust construction, and high EMC/EMI protection equip the pressure transmitter to meet stringent marine requirements.
Features
- Designed for use in severe maritime environments.
- MBS 5150 with integrated pulse snubber is suitable for marine applications with severe medium influences like cavitation, liquid hammer, or pressure peaks, offering reliable pressure measurement even under harsh environmental conditions.
- Pressure connection of acid-resistant stainless steel (AISI 316L).
- Pressure ranges in relative (gauge) or absolute from 4 up to 400 bar.
- Output signal: 4 – 20 mA.
- A wide range of pressure connections.
- Fully digitally compensated.
- Accuracy 0.3% FS (max).
- UL approved.
- Several Marine approvals.
Application and Media Conditions for MBS 5150
Cavitation, liquid hammer, and pressure peaks can occur in hydraulic systems with changes in flow velocity, such as fast closing of a valve or pump starts and stops. Liquid backlash can create significant, non-uniform pressure peaks that may damage the diaphragm. This can happen on the inlet and outlet sides, even at relatively low operating pressures.
Clogging of the nozzle may occur in liquids containing particles. Mounting the transmitter in an upright position minimizes the risk of clogging, as flow in the nozzle is limited to the start-up period until the dead volume behind the nozzle orifice is filled. Media viscosity has little effect on response time; even at viscosities up to 100 cSt, the response time will not exceed 4 ms.
Technical Data
Table 1: Performance (EN 60770)
| Description | Values |
| Accuracy (incl. non-linearity, hysteresis and repeatability) | ≤ ± 0.1% FS (typ.) / ≤ ± 0.3% FS (max.) |
| Non-linearity BFSL (conformity) | ≤ ± 0.2% FS |
| Hysteresis and repeatability | ≤ ± 0.1% FS |
| Response time | Liquids with viscosity < 100 cSt: < 4 ms / Air and gases (MBS 5150): < 35 ms |
| Overload pressure (static) | 6 x FS (max. 1500 bar) |
| Burst pressure | 6 x FS (max. 2000 bar) |
| Power-up time | < 50 ms |
| Durability, P: 10 – 90% FS | > 10 × 10⁶ cycles |
| MTTFd - Calculation based on the SN 29500 | > 100 Years |
Table 2: Electrical specifications
| Description | Values |
| Nom. output signal (short-circuit protected) | 4–20 mA |
| Supply voltage [UB], polarity protected | 9–32 V DC |
| Supply voltage dependency | ≤ ± 0.1% FS/10 V |
| Current limitation (linear output signal up to 1.5 x rated range) | 22.4 mA |
| Load [RL] (load connected to 0 V) | RL ≤ (UB-9 V)/0.02 A [Ω] |
Table 3: Environmental conditions
| Description | Normal | Values |
| Sensor temperature range | -40–85 °C | |
| Media temperature range | -40–85 °C | |
| Ambient temperature range (depending on electrical connection) | -40–85 °C | |
| Compensated temperature range | 0–80 °C | |
| Transport/storage temperature range | -50–85 °C | |
| EMC - Emission | EN 61000-6-3 | |
| EMC - Immunity | EN 61000-6-2 | |
| Insulation resistance | > 100 MΩ at 500 V | |
| Vibration stability | Sinusoidal | 15.9 mm-pp, 5 Hz – 25 Hz (IEC 60068-2-6) |
| Shock resistance | Random | 7.5 grms, 5 Hz - 1 kHz (IEC 60068-2-64) |
| Shock | 500 g / 1 ms (IEC 60068-2-27) | |
| Free fall | 1 m (IEC 60068-2-32) | |
| Enclosure (IP protection fulfilled together with mating connector) | IP65 (IP54 ATEX Zone 2) |
Table 4: Explosive atmospheres
| Zone 2 applications(1) | ||
| CE?☷☷☷☷ II 3G Ex ec IIA T4 Gc -20°C<Ta<+85°C |
EN60079-0, EN60079-7 |
(1) The Pressure transmitter must be installed where it cannot be exposed to impact in normal use.
Mechanical Characteristics
Table 5: Mechanical characteristics
| Description | Versions without flange connection | Versions with flange connection | Values |
| Electrical connection | EN 175301-803-A plug | ||
| Electrical connection, material | Glass filled polyamide PA 6.6 | ||
| Wetted parts, material | EN 10088-1; 1.4404 (AISI 316L) | ||
| Pressure connection | G 1/4 | AISI 316L | |
| Plug | Nickel plated brass | W.no. 10388 Sn5 | |
| Plug gasket | NBR | ||
| O-ring for flange | |||
| Enclosure material | Anodized AlMgSiPb | ||
| Net weight | 0.4 kg |
Dimension
Table 6: Dimension
Plug M20, EN 175301-803-A
[Diagram of Plug M20, EN 175301-803-A dimensions]
Plug Pg 9-11, EN 175301-803-A
[Diagram of Plug Pg 9-11, EN 175301-803-A dimensions]
Electrical Connections
Table 7: Electrical connections
Plug type, page 4
A6
[Diagram of A6 electrical connection]
Pin 1: + supply
Pin 2: - supply
Pin 3: Function test 40 - 200 mV
Electrical connection, 4-20 mA output (2 wire)
Earth: Connected to MBS enclosure
H3
[Diagram of H3 electrical connection]
Pin 1: + supply
Pin 2: - supply
Pin 3: Function test 40 - 200 mV
Earth: Connected to MBS enclosure
A0/A1/J7
[Diagram of A0/A1/J7 electrical connection]
Pin 1: + supply
Pin 2: - supply
Pin 3: Function test 40 - 200 mV
Earth: Connected to MBS enclosure
Mechanical Connection
Table 8: Mechanical connection
Thread
[Diagram of Thread G1/4 mechanical connection]
Flange
[Diagram of Flange mechanical connection]
Ordering Standards
Non-standard build-up combinations may be selected. However, minimum order quantities may apply. Please contact your local Danfoss office for further information or request for other versions.
Figure 2: Ordering standards
[Diagram of Ordering standards]
MBS 51
| Type | Pressure connection | Gasket / O-ring material |
| Standard (00) | CB04: G 1/4 female | 1 No gasket |
| With pulse snubber (50) | CC04: 1/4 - NPT female | 2 Gasket, NBR -40° - 85°C |
| DA05: M10 x 1 female with flange | 4 O-ring, NBR -40° – 85°C | |
| DB04: G 1½ female with flange connection | ||
| Measuring range | Figures refer to plug and standard PIN configuration – see page 5 | |
| 0 – 4.0 bar | 16 | |
| 0 – 6.0 bar | 18 | |
| 0 – 10 bar | 20 | |
| 0 – 16 bar | 22 | |
| 0 – 25 bar | 24 | |
| 0 – 40 bar | 26 | |
| 0 – 60 bar | 28 | |
| 0 – 100 bar | 30 | |
| 0 – 160 bar | 32 | |
| 0 – 250 bar | 34 | |
| 0 – 400 bar | 36 | |
| Pressure reference | ||
| Gauge (relative) | 1 | |
| Absolute | 2 | |
| Sealed gauge | 3 | |
| Output signal | ||
| 1: 4-20 mA |
Certificates, Declarations and Approvals
The list contains all certificates, declarations, and approvals for this product type. Individual code numbers may have some or all of these approvals, and certain local approvals may not appear on the list. Some approvals may change over time. You can check the most current status at danfoss.com or contact your local Danfoss representative if you have any questions.
Table 9: Valid approvals
| File name | Document type | Document topic | Approval authority |
| BV 06094-FO BV | Marine - Safety Certificate | BV | |
| DNV TAA000013G Rev.2 | Marine - Safety Certificate | DNV | |
| RINA ELE031621XP | Marine - Safety Certificate | RINA | |
| NKK TA21099M | Marine - Safety Certificate | NKK | |
| LR 2010635TA-02 | Marine - Safety Certificate | LR | |
| ABS 21-2092809-PDA | Marine - Safety Certificate | ABS | |
| KR DLN 34014-AE001 | Marine - Safety Certificate | KR | |
| CCS TJ22PTB00047 | Marine - Safety Certificate | CCS | |
| UL E227388 | Explosive - Safety Certificate | Hazardous Locations | UL |
| UL E31024 | Electrical - Safety Certificate | UL | |
| UL E311982 | Electrical - Safety Certificate | UL | |
| UL E510763 | Electrical - Safety Certificate | UL | |
| Danfoss EU-UK 06469615.11 | EU-UK Declaration | EMC/ROHS/ATEX | Danfoss |
| BV SMS.W.II-2179-C.0 | Marine - Manufacturing Permission | BV | |
| UL E494625 | Electrical - Safety Certificate | UL | |
| TSSA CRN.OF18477.5123467890ΥΤΝ | Pressure - Safety Certificate | TSSA | |
| Pressure & Temperature Sensors | Manufacturers Declaration | Export Control | Danfoss |
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