Standard Industrial Pressure Transmitters

The Keller Series 21Y pressure transducer / transmitter is designed for general industrial and OEM applications requiring medium to high measurement accuracy. Its high design flexibility affords numerous options of process and electrical connection. Pressure ranges between 0-2 and 0-1000 bar are available with output signal options of 4-20mA, 0-10V and 0.5-4.5V. The Series 21Y employs active temperature compensation to significantly reduce total error band and has extremely high EMC protection for a transmitter of this class / price point. Total error band including linearity and all thermal errors over 0-50°C is ≤±1%FS max.

The Series 33X and Series 35X pressure transmitters use a stable, floating piezoresistive transducer with a XEMICS micro-processor to compensate for temperature and non-linearities of the sensor providing a highly precise mathematically compensated output. Standard units provide an accuracy of 0.05%FS, with a 0.01%FS option available, for the RS485 serial output and a 0.1%FS accuracy on the analogue outputs. Units are available with ATEX certification for use in hazardous area applications. All units are reprogrammable using the Control Center Series 30 software, which allows for setting the analogue outputs range and setting new zero and gain for the transmitters.

Hazardous Area Approved

These piezoresistive pressure transmitter are designed for precision measurements in industrial applications for pressures ranging from 200mBar up to 1,000 Bar for liquids and gases. Series 23 has a standard ¼" BSP threaded connection, whilst series 25 has a ¼" BSP flush diaphragm pressure port. Output options include a 2-wire 4-20mA, 3- wire 0-20mA or 0-10vDC with a standard frequency response of 1kHz with options available for 5kHz and 10kHz.

The Keller Series 23SY pressure transmitter has digital temperature compensation which provides accuracy of 0.3% over 0-50C or 0.4% over -10 to +80°C. It is available in pressure ranges from vacuum to 1000 bar gauge or absolute and can be supplied with 4-20mA, 0-5v, 0-10v or 0.5 - 4.5v outputs.

These Keller pressure transmitters are approved for use in high explosion risk areas and are ATEX approved certified EXD. They provide stable and accurate measurements of absolute and gauge pressures of liquid and gaseous media in the pressure range between 200mBar and 300 Bar. Available with standard 1/4" BSP male and 1/2" BSP flush diaphragm connections.

Hazardous Area Approved