The MBS 3050 is a pressure transmitter used in SANY hydraulic systems. Here is a breakdown of what it is and how it fits into the machine:

1. Design and Construction
The transducer features a stainless steel housing and a ceramic pressure-sensing element. The ceramic technology provides good resistance to overpressure and wear over time. Its compact size makes it easy to fit into tight spaces commonly found on hydraulic manifolds. The housing is sealed against moisture and dust for reliable operation in outdoor environments.

2. Operating Function
The MBS 3050 measures the relative (gauge) pressure of hydraulic oil or other fluids in the system. It converts the pressure reading into a standard analog signal, typically 4-20 mA or 0-10 V, which is proportional to the applied pressure. The signal travels to the crane's main control unit for monitoring and safety functions. The sensor is factory-calibrated and does not require user adjustment.

3. Installation Location
The transducer is installed directly into the hydraulic circuit at a manifold block, valve body, or cylinder port. The threaded connection is commonly G1/4" or similar hydraulic fittings. An O-ring or copper washer is required for sealing. A sealed electrical connector (such as a Deutsch plug) completes the wiring connection to the machine harness.

4. Maintenance and Troubleshooting
Routine checks include examining the housing for physical damage, ensuring the connector is fully engaged, and checking for oil seepage around the thread. If the sensor fails, the hydraulic circuit must be depressurized before removal. The old sensor is unscrewed and replaced with a new one, using fresh sealant and correct torque specifications.