I am looking for a 4-20mA pressure transmitter device for measuring the pressure of methane (CH4) gas up to 160 mbar gauge which also includes a local display and a separate configurable switch output, what pressure transmitter can you suggest?
The DS200 pressure transmitter is a versatile solution for accurately measuring methane gas pressure in various industrial applications. It’s specifically designed to handle low-pressure ranges, making it ideal for systems operating within 0 to 160 mbar gauge. This makes it suitable for monitoring gas pressures in pipelines, storage tanks, and process control systems where precise measurement of low-pressure methane is crucial.
One of the standout features of the DS200 is the integrated LED display. This local display provides a clear and immediate readout of the pressure, eliminating the need for external monitoring devices in many cases. This is particularly useful for on-site technicians who need quick and easy access to pressure readings during inspections or maintenance.
In addition to the 4-20mA analog output, which is a standard for industrial instrumentation, the DS200 also incorporates a configurable solid-state switch output. This switch can be programmed to trigger alarms or initiate control actions based on preset pressure thresholds. This functionality enhances the safety and automation capabilities of the system, allowing for immediate responses to pressure deviations. For instance, in a methane gas pipeline, the switch could trigger an alarm if the pressure drops below a safe operating level, alerting operators to a potential leak or system malfunction.
The DS200 is also available with an intrinsically safe option. This is crucial for installations in hazardous areas where the presence of flammable gases or vapors requires specialized equipment to prevent ignition. The intrinsically safe design ensures that the electrical energy within the device is limited, preventing it from becoming a source of ignition in these potentially explosive atmospheres. This makes the DS200 suitable for use in a wide range of industrial settings, including oil and gas refineries, chemical processing plants, and other environments where methane gas is present.
The combination of a local display, a configurable switch output, robust material construction, and intrinsic safety options make the DS200 a comprehensive solution for pressure measurement and control in methane gas applications. Its versatility and adaptability make it suitable for a wide range of industrial and research settings where reliable and accurate pressure monitoring is essential.

DS200 Combined Pressure Switch, Gauge and Sensor
- Pressure Range: 0 to 160
- Units: mbar
- Range Type: Positive Gauge (atm to +P)
- Output Signal: 4-20mA, ATEX IS, (2 wire)
- Accuracy: 0.5% (11-12bit resolution)
- Switch Output: 1 PNP switch
- Electrical Connection: Integral cable gland with 2m of cable
- Process Connection: G1/2 DIN3852 male
- Process Connector Material: Stainless steel 316L
- Diaphragm Material: Stainless steel 316L
- Media Exposed Seals: FKM