MBS 3000 Danfoss 060G1122 Low-Pressure Transmitter

Product Overview

The 060G1122 (060G1122) is a precision-engineered MBS 3000 series pressure transmitter from Danfoss, designed specifically for low-pressure industrial monitoring. This unit converts a measuring range of 0 - 2.5 bar into a high-stability 4 - 20 mA analog output signal. Built to withstand the rigors of industrial environments, the 060G1122 features a piezo-resistive sensing element that provides excellent repeatability and long-term stability. It is an ideal solution for applications such as tank level measurement, low-pressure pump control, and pneumatic monitoring where accuracy in a narrow pressure window is essential to maintaining process efficiency and preventing system errors.

Technical Configuration

As a part of the MBS 3000 "standard" industrial program, this transmitter is built for durability and ease of integration. It utilizes a G 1/4 A (EN 837) pressure connection, a robust threaded interface that ensures a reliable seal even under vibration. The electrical interface is handled via a standard Pg 9 (EN 175301-803-A) plug, which is highly regarded for its secure, industrial-grade connectivity. The 060G1122 is a Gauge (relative) pressure transmitter, meaning it measures system pressure in relation to current atmospheric conditions. This makes it particularly effective for open-loop ventilation systems or liquid storage tanks where maintaining a specific head pressure relative to the environment is required.

Technical Specifications

Technical FAQs

How accurate is the 060G1122 for low-pressure tank leveling?

The MBS 3000 series typically features a total error band of plus/minus 1% FS (Full Scale) across the compensated temperature range. For a 2.5 bar range, this provides the high resolution necessary for precise liquid level monitoring in medium-sized industrial tanks.

Can this transmitter handle media with high temperatures?

The 060G1122 is rated for medium temperatures between -40 and 85 deg C. If your application involves steam or very hot liquids, it is recommended to use a cooling syphon or capillary tube to ensure the medium temperature at the sensor face stays within these operational limits.

Is the Pg 9 plug included with the unit?

Generally, Danfoss MBS 3000 transmitters of this code include the female mating plug. However, for a complete IP65 seal, the user must ensure the cable used is compatible with the Pg 9 gland size and that the internal gasket is correctly seated during final installation.

Engineering & Installation Guide

• Pressure Port Orientation: When measuring gas or air, install the transmitter with the pressure connection pointing downwards to allow any moisture or condensate to drain away from the sensor. For liquid applications, mount the unit horizontally or vertically to prevent air pockets from being trapped against the sensing diaphragm, which can cause reading fluctuations.

• Electrical Loop Load: Ensure your PLC or controller's input impedance, combined with the cable resistance, does not exceed the maximum allowable load for the 4 - 20 mA loop. Typically, with a 24 VDC supply, the MBS 3000 can support a total loop resistance of approximately 600 - 700 Ohms.

• Sealing Best Practices: When installing the G 1/4 A thread, always use a new copper or bonded seal (Dowty washer). Avoid over-tightening; use a calibrated torque wrench to apply approximately 25 Nm of torque to achieve a gas-tight seal without stressing the transmitter's stainless steel housing.