Product Overview

The Danfoss MBS 1900 serves as the primary pressure monitoring solution for the global OEM market, specifically optimized for high-volume applications in water pumps and air compressors. Engineered to balance industrial-grade precision with cost-effective manufacturing, this transmitter provides reliable performance where traditional high-end sensors exceed project budgets. The MBS 1900 utilizes a high-quality silicon sensing element that withstands the repetitive pressure cycles and vibrations inherent in rotary screw compressors and multi-stage pump systems. Its compact design facilitates easy integration into standardized machine layouts, providing a stable 4-20mA or ratiometric output signal. By utilizing the MBS 1900, manufacturers achieve accurate pressure feedback for automated start-stop logic and system protection, ensuring the long-term operational health of essential utility machinery in both commercial and light industrial settings.

Core Technical Advantages

Targeted OEM Architecture

The MBS 1900 hardware prioritizes the specific needs of original equipment manufacturers. By focusing on the typical pressure ranges and environmental conditions of air and water systems, Danfoss has removed unnecessary complexity, resulting in a lightweight yet durable sensor. This focused engineering allows for a more competitive price point without sacrificing the core reliability expected from the VLT® and MBS families.

Optimized Signal Stability

Equipped with internal temperature compensation, the MBS 1900 maintains signal accuracy across the standard operating windows of industrial compressors. The electronics filter out common electromagnetic interference from motor starters and contactors, ensuring the pressure data remains clear and consistent, which prevents nuisance trips in the main control logic.

Flexible Electrical and Pressure Interfaces

To suit various global assembly standards, the MBS 1900 supports multiple connection types. Whether your system requires a standard G 1/4 thread or specialized electrical connectors like the M12 or Packard, this transmitter integrates seamlessly. This modularity reduces the need for adapters, minimizing potential leak points and simplifying the production assembly line for high-volume equipment.

Technical Specifications

Engineering Installation Guide

Sealing and Thread Integrity

When installing the MBS 1900 into a pump manifold or compressor receiver tank, utilize a proper G 1/4 sealing washer. Tighten the hexagonal base to a torque of 20-25 Nm. Over-tightening can stress the internal sensing diaphragm, leading to zero-point shift. Ensure the pressure port remains free of heavy grease or thread sealant, which can trap air and cause sluggish response times.

Electrical Routing and Noise

Route the transmitter signal cable away from high-voltage AC motor leads. For air compressor applications, vibration is a constant factor; utilize a flexible conduit or ensure the cable has sufficient slack to prevent fatigue at the connector pins. The DIN plug must include the rubber gasket and the central screw must be hand-tightened to maintain the IP65 environmental rating.

Pressure Snubbing for Pump Systems

In water pump applications subject to rapid valve closures, we recommend installing the MBS 1900 behind a small orifice or a dedicated snubber. While the sensor is robust, water hammer can produce instantaneous pressure peaks far exceeding the rated burst pressure, potentially rupturing the sensing element.

Engineering Advantages

The MBS 1900 excels in high-volume industrial environments where reliability and economy are equally weighted. Its stainless steel wetted parts provide essential resistance to the moisture found in compressed air systems and the varying chemistry of municipal water. The compact 24mm diameter housing allows for installation in the tightest machine corners, facilitating modern, space-saving equipment designs. Unlike many "budget" sensors that utilize plastic housings, the MBS 1900’s metal construction ensures it survives the accidental impacts and rough handling common during machine assembly and field maintenance. Choosing the MBS 1900 provides a trusted, globally-supported pressure sensing platform that enhances the technical authority of your finished product.

Delivery & Logistics

Delivery time: 3-5 days when payment finish.

Shipping Carriers: BY DHL/FEDEX/UPS.

Packaging: We utilize moisture-barrier anti-static bags and reinforced boxing. Every MBS 1900 unit is shipped in original factory-sealed packaging to guarantee that the precision-calibrated sensor arrives ready for immediate installation.

Technical FAQs

Q1: Is the MBS 1900 suitable for hydraulic systems?

A1: The MBS 1900 is primarily designed for air and water systems. For high-pressure hydraulic applications involving intense pressure spikes, we recommend the MBS 3050, which features an integrated pulse snubber.

Q2: Can I get this transmitter with a 0-10V output?

A2: The standard MBS 1900 focuses on 4-20mA and ratiometric signals for OEM efficiency. If your controller requires 0-10V, please contact us for specific model availability or signal converter options.

Q3: Does the MBS 1900 include the electrical plug?

A3: For OEM bulk orders, plugs are often sold separately to match the specific cable requirements. For individual units, we typically provide the DIN 43650-A plug to ensure you can complete the installation immediately.

Q4: What is the maximum overpressure for a 10-bar model?

A4: Most MBS 1900 models support at least 3x the nominal pressure range as an overpressure limit, but always refer to the specific datasheet for your model code to ensure safety in your specific application.