Baumer CNI Adjustable Dead Band Diaphragm Pressure Switch

A. Product Overview

The Baumer CNI Adjustable Dead Band Diaphragm Pressure Switch is a heavy-duty industrial pressure switch used for controlling and monitoring pressure in liquid, gas, utility and process applications. It is designed with an adjustable dead band diaphragm mechanism, allowing users to set the switching and reset points as per application requirements.

This pressure switch offers a pressure range from -1 to 0 bar and 0 to 40 bar, making it suitable for vacuum, low pressure and medium pressure applications. It provides 1.0 percent FSR repeatability, helping maintain consistent switching performance in industrial systems.

The Baumer CNI pressure switch is available with 1 or 2 microswitches SPDT, making it suitable for single-stage or dual-stage control applications. It has a switch rating of 15 A at 250 VAC and 0.4 A at 110 VDC, allowing it to be used in control panels, alarms, pump systems, compressors, boilers and process control circuits.

The sensing element is made from AISI 316L stainless steel, which offers good corrosion resistance for industrial media. It is supplied with 3/8 inch and 1/2 inch BSP or NPT process connections, a die cast aluminum housing and IP66 protection class for weatherproof performance in demanding industrial environments.

B. Working Principle

The Baumer CNI Adjustable Dead Band Diaphragm Pressure Switch works on the diaphragm pressure sensing principle. When process pressure enters through the connection port, it acts on the AISI 316L stainless steel diaphragm.

As the pressure increases or decreases, the diaphragm deflects mechanically. This movement is transferred to the internal switching mechanism. When the pressure reaches the set value, the internal SPDT microswitch changes contact position. This switching action can be used to start or stop a pump, activate an alarm, trip a safety circuit or send a signal to a control panel.

The adjustable dead band allows the user to control the difference between the switch activation point and reset point. This helps avoid frequent switching, contact chattering and unnecessary equipment cycling in pressure systems.

In models with 2 microswitches SPDT, two separate switching points can be used for alarm and trip functions, low and high pressure control or staged control operations.

C. Why It Is Used

The Baumer CNI diaphragm pressure switch is used when accurate, reliable and adjustable pressure switching is required in industrial systems. It helps protect equipment from abnormal pressure conditions and supports automatic pressure control.

It is used to detect high pressure, low pressure, vacuum pressure and process pressure changes. The adjustable dead band makes it useful in applications where pressure fluctuation is common and stable switching is required.

The AISI 316L stainless steel diaphragm makes the switch suitable for many industrial fluids and gases. The IP66 die cast aluminum enclosure provides strong protection against dust and water ingress, making it suitable for harsh plant environments.

This pressure switch is preferred in applications where a mechanical switching device is required instead of an electronic pressure transmitter. It is simple to install, easy to set and suitable for long-term industrial operation.

D. Suitable Buyers

The Baumer CNI Adjustable Dead Band Diaphragm Pressure Switch is suitable for:

Industrial automation suppliers
Instrumentation dealers and distributors
Panel builders and control panel manufacturers
Pump manufacturers and pump maintenance teams
Compressor manufacturers and service providers
Boiler manufacturers and boiler maintenance teams
Water treatment plant contractors
Fire fighting system contractors
Hydraulic system manufacturers
Process plant maintenance teams
Chemical and utility plant operators
OEM machine manufacturers
EPC contractors and project purchase teams
Baumer pressure switch buyers in India
Factories looking for IP66 industrial pressure switches

FAQ

1. What is the Baumer CNI Adjustable Dead Band Diaphragm Pressure Switch used for?
The Baumer CNI pressure switch is used for pressure monitoring and automatic switching in industrial systems. It can be used for pumps, compressors, boilers, water treatment systems, fire fighting systems, hydraulic systems and process control applications.

2. What is the pressure range of the Baumer CNI pressure switch?
The pressure range is -1 to 0 bar and 0 to 40 bar, making it suitable for vacuum, low pressure and medium pressure industrial applications.

3. What is adjustable dead band in a pressure switch?
Adjustable dead band means the user can adjust the difference between the switching point and reset point. This helps prevent frequent switching and improves control stability in fluctuating pressure systems.

4. What sensing element is used in the Baumer CNI pressure switch?
The Baumer CNI pressure switch uses an AISI 316L stainless steel diaphragm as the sensing element.

5. What type of switch output is available in Baumer CNI?
The Baumer CNI is available with 1 or 2 microswitches SPDT. This allows it to be used for single-point or dual-point pressure control.

6. What is the switch rating of the Baumer CNI pressure switch?
The switch rating is 15 A at 250 VAC and 0.4 A at 110 VDC.

7. What process connection is available in this pressure switch?
The Baumer CNI pressure switch is available with 3/8 inch and 1/2 inch BSP or NPT process connections.

8. What is the protection class of the Baumer CNI pressure switch?
The protection class is IP66, which means the enclosure provides strong protection against dust and water ingress.

9. Is Baumer CNI suitable for outdoor industrial applications?
Yes, the IP66 die cast aluminum housing makes it suitable for demanding industrial environments where dust and water protection are required.

10. Can this pressure switch be used for pump and compressor control?
Yes, the Baumer CNI diaphragm pressure switch is suitable for pump and compressor control where pressure-based switching, alarm or trip operation is required.

11. What is the benefit of 2 SPDT microswitches?
The 2 SPDT microswitch option allows two separate switching actions. It can be used for low pressure alarm and high pressure trip, pump control and alarm output, or two-stage pressure control.

12. Why choose a diaphragm type pressure switch?
A diaphragm type pressure switch is suitable for accurate pressure sensing and reliable switching. It is commonly used in industrial applications where pressure needs to be monitored and controlled safely.