Baumer BJ Pressure Gauge with Electrical Contacts

A. Product Overview

Baumer BJ pressure gauge is a high quality pressure gauge with electrical contacts used for both pressure indication and pressure control. It is available in DN 100 mm and DN 150 mm dial sizes, making it suitable for industrial panels, process lines, machines and equipment where clear pressure reading and switching output are required.

The gauge is designed with an AISI 304 stainless steel bayonet case, with optional AISI 316 stainless steel case for more demanding environments. The sensing element is made from AISI 316L stainless steel, and the process connection is also made from AISI 316L stainless steel. Optional Monel material is available for special corrosive media applications.

The Baumer BJ pressure gauge covers a wide pressure range from 1.6 bar to 1600 bar with accuracy class 1.0. It is available with process connection options such as 1/4 inch NPT(M), 1/2 inch BSP(M) and 1/2 inch NPT(M). It supports mounting types 1, 2, 3, 5 and 9, making it flexible for different installation requirements.

With IP65 protection as standard and optional IP66 and IP67 protection, the Baumer BJ electric contact pressure gauge is suitable for industrial environments. It follows EN 837-1 reference standard and has CE approved electrical contacts option available.

B. Working Principle

Baumer BJ pressure gauge works on the mechanical pressure sensing principle. When pressure enters through the process connection, the sensing element reacts to the applied pressure. This movement is transferred through the internal mechanism to the pointer, which displays the pressure value on the dial.

In addition to pressure indication, the Baumer BJ model can be supplied with electrical contacts. These contacts are set at required pressure points. When the pressure reaches the set value, the electrical contact changes state and sends a signal to external devices.

This signal can be used for alarm, pump control, compressor control, motor protection, shutdown, interlock or process automation. Because of this dual function, the Baumer BJ pressure gauge is useful where both local pressure reading and electrical switching are required.

C. Why It Is Used

Baumer BJ pressure gauge with electrical contacts is used where pressure needs to be monitored and controlled at the same time. It helps operators see the pressure value directly on the dial while also providing electrical contact output for automation or safety control.

It is used to protect equipment from overpressure or underpressure conditions. In pumps, compressors and hydraulic systems, pressure limits are important for safe operation. The electrical contact option helps activate alarms, stop machines, start pumps or trigger control circuits when pressure crosses a set limit.

The all stainless steel construction provides durability in industrial environments. The wide pressure range up to 1600 bar makes it suitable for demanding applications. Optional Monel wetted parts make it useful for selected corrosive media applications.

D. Suitable Buyers

Baumer BJ pressure gauge is suitable for:

Industrial plants requiring pressure monitoring and switching.

Chemical and petrochemical industries needing stainless steel pressure gauges with contact output.

Oil and gas plants requiring reliable pressure indication and alarm control.

Hydraulic machine manufacturers and maintenance teams.

Pneumatic system suppliers and service teams.

Compressor manufacturers and compressor maintenance departments.

Pump manufacturers and pump automation system integrators.

Panel builders requiring pressure gauge with electrical contact for control panels.

OEMs requiring pressure indication and electrical switching in machines.

Instrumentation engineers, purchase managers and maintenance engineers looking for Baumer electric contact pressure gauges.

Water treatment plants and power plants requiring pressure control and alarm monitoring.

FAQ

1. What is Baumer BJ pressure gauge used for?

Baumer BJ pressure gauge is used for pressure measurement, pressure monitoring and pressure control in industrial applications. It is suitable for pumps, compressors, hydraulic systems, pneumatic systems, chemical plants, petrochemical plants, oil and gas plants, power plants and water treatment systems.

2. What is special about Baumer BJ pressure gauge?

Baumer BJ pressure gauge can be supplied with CE approved electrical contacts. This allows the gauge to provide local pressure indication and also electrical switching output for alarms, control circuits and automation systems.

3. What dial sizes are available in Baumer BJ pressure gauge?

Baumer BJ pressure gauge is available in DN 100 mm and DN 150 mm dial sizes.

4. What is the pressure range of Baumer BJ pressure gauge?

The pressure range of Baumer BJ pressure gauge is from 1.6 bar to 1600 bar.

5. What is the accuracy class of Baumer BJ pressure gauge?

Baumer BJ pressure gauge has accuracy class 1.0.

6. What is the case material of Baumer BJ pressure gauge?

The standard case material is AISI 304 stainless steel with bayonet type construction. Optional AISI 316 stainless steel case is also available.

7. What is the sensing element material?

The sensing element is made from AISI 316L stainless steel. Optional Monel sensing element is available for special applications.

8. What is the process connection material?

The process connection material is AISI 316L stainless steel. Optional Monel process connection is available.

9. What process connection options are available?

Available process connections include 1/4 inch NPT(M), 1/2 inch BSP(M) and 1/2 inch NPT(M).

10. What is the protection class of Baumer BJ pressure gauge?

Baumer BJ pressure gauge has IP65 protection as standard. Optional IP66 and IP67 protection classes are available.

11. Which standard does Baumer BJ pressure gauge follow?

Baumer BJ pressure gauge follows EN 837-1 reference standard.

12. What is an electric contact pressure gauge?

An electric contact pressure gauge is a pressure gauge that shows pressure on the dial and also provides an electrical contact signal when the pressure reaches a set point. It is used for alarm, control and safety applications.

13. Can Baumer BJ pressure gauge be used for pump control?

Yes, Baumer BJ pressure gauge with electrical contacts can be used for pump control, dry run protection, high pressure alarm, low pressure alarm and pressure based automation.

14. Can Baumer BJ pressure gauge be used in hydraulic systems?

Yes, Baumer BJ pressure gauge is suitable for hydraulic systems because it is available in high pressure ranges up to 1600 bar.

15. Is Baumer BJ pressure gauge suitable for corrosive media?

The standard wetted parts are made from AISI 316L stainless steel. Optional Monel material is available for selected corrosive media applications. Media compatibility should be confirmed before selection.

16. Who should buy Baumer BJ pressure gauge?

Baumer BJ pressure gauge is suitable for OEMs, system integrators, panel builders, pump manufacturers, compressor manufacturers, hydraulic machine manufacturers, chemical plants, petrochemical plants, oil and gas companies, power plants, water treatment plants, instrumentation engineers and maintenance departments.