JUMO dTRANS p30 Pressure Transmitter

Comprehensive Pressure Measurement for Industrial Applications

The JUMO dTRANS p30 Pressure Transmitter is an advanced solution engineered to meet the strict demands of modern process control and automation industries. Designed to accurately measure both relative (gauge) and absolute pressures in liquid and gaseous media, this transmitter utilizes piezoresistive sensor technology for low-pressure ranges and thin-film strain gauge technology for higher pressure applications. The measured physical pressure is converted into a proportional electrical signal, ensuring seamless integration with programmable logic controllers (PLCs), recorders, and digital indicators.

High Precision and Superior Signal Processing

With a standard linearity deviation of ≤ 0.5% MSP (with optional reduced deviation of ≤ 0.2% MSP), the JUMO dTRANS p30 provides high accuracy across a broad measuring range—from 0 to 250 mbar up to 0 to 600 bar relative, and absolute ranges up to 25 bar. The unit features quick response times of ≤ 3 ms for current outputs and ≤ 10 ms for voltage outputs, ensuring rapid dynamic measurement in fast-moving process lines. Furthermore, annual stability of ≤ 0.5% MSP guarantees long-term reliability and minimizes calibration downtime.

Robust Design Built for Harsh Environments

Constructed with a rugged Stainless Steel 304 housing and Stainless Steel 316Ti/316L/630 wetted parts, the dTRANS p30 is built to withstand challenging ambient conditions. It accommodates medium temperatures ranging from -30 °C to +120 °C and ambient operating temperatures from -20 °C to +100 °C. The sensor structure provides high mechanical shock resistance (100 g / 1 ms) and vibration resistance (20 g max. at 15 to 2000 Hz), preventing measurement errors or physical failure in vibration-heavy hydraulic or mechanical systems.

Flexible Process Connections and Hygienic Options

To accommodate diverse pipework and tank designs, the dTRANS p30 offers standard threaded process connections (G 1/4, G 1/2, NPT threads) as well as front-flush diaphragm configurations. Front-flush versions (such as G 1/2, G 3/4, G 1, and G 1 1/2) are specifically recommended for highly viscous, crystallizing, or aggressive media that would otherwise clog standard pressure ports. For food, beverage, and pharmaceutical industries, EHEDG-certified hygienic connections—including Clamp DN 25/32/40/50, dairy pipe fittings DIN 11851, and JUMO PEKA process connections—are available, facilitating effective Cleaning-in-Place (CIP) procedures.

Multiple Electrical and Output Configurations

The dTRANS p30 offers versatile signal output options to fit any control architecture, including standard 4 to 20 mA two-wire current loops, 0 to 20 mA three-wire, and DC voltage outputs (0.5 to 4.5 V, 0 to 10 V, 1 to 5 V, and 1 to 6 V). Electrical connections include terminal box DIN EN 175301-803 Form A (IP65 protection class), circular connector M12 × 1 (IP67), or attached 4-core PVC cables (IP67).

Application

• Industrial Process Engineering: Pressure monitoring in liquid and gas pipelines.

• Hydraulic & Pneumatic Systems: Fluid pressure control in machinery and equipment construction.

• Food, Beverage & Brewery Operations: Hygienic pressure measurement in CIP lines using EHEDG-certified connections.

• Chemical & Petrochemical Processing: Measuring pressure of aggressive, viscous, or media subject to temperature fluctuations.

• Plant and Mechanical Machinery: Integration into control circuits, indicators, and data acquisition units.

 Technical Specifications

• Measuring Ranges: 0 to 0.25 bar up to 0 to 600 bar gauge pressure; 0 to 0.6 bar up to 0 to 25 bar absolute pressure.

• Accuracy / Linearity: Deviation from characteristic ≤ 0.5% MSP (optional ≤ 0.2% MSP).

• Output Signals: 4 to 20 mA (2-wire/3-wire), 0 to 20 mA (3-wire), DC 0 to 10 V, DC 0.5 to 4.5 V, DC 1 to 5 V, DC 1 to 6 V.

• Power Supply: DC 10 to 30 V (for 4 to 20 mA / 1 to 6 V output); DC 11.5 to 30 V (for 0 to 10 V output); DC 5 V (for 0.5 to 4.5 V output).

• Wetted Parts Material: Stainless steel 316 Ti / 316 L (ranges ≥ 60 bar: Stainless steel 316 Ti / 630).

• Housing Material: Stainless steel 304, Polycarbonate GF.

• Medium Temperature Range: -30 °C to +120 °C.

• Ambient Temperature Range: -20 °C to +100 °C.

• Enclosure Rating: IP65 (with DIN EN 175301-803 terminal box); IP67 (with M12 × 1 connector or attached cable).

• Response Time: ≤ 3 ms (current output); ≤ 10 ms (voltage output).

• Weight: Approx. 200 g.

FAQ

Q1: Can the JUMO dTRANS p30 measure both gauge and absolute pressure? A: Yes, the transmitter supports both relative (gauge) pressure ranges (up to 600 bar) and absolute pressure ranges (up to 25 bar).

Q2: Which process connection is recommended for viscous or crystallizing media? A: Front-flush process connection options (such as front-flush threads G 1/2, G 3/4, G 1, or hygienic clamps) should be used for highly viscous or crystallizing media to prevent the pressure port from clogging.

Q3: Is the dTRANS p30 certified for hygienic applications? A: Yes, specific models with clamp connections (DN 25, 32, 40, 50) and JUMO PEKA process connections are EHEDG-certified for food, beverage, and pharmaceutical processing.

Q4: What should be considered when installing the device in hydraulic systems? A: In hydraulic systems, mount the device with the pressure connection facing upwards to avoid air entrapment, and use shut-off devices with progressive opening to prevent pressure surges and water hammer.

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