PRAG Absolute Pressure Transmitter TP14

The PRAG outputs a processed standard signal: 4–20 mA in two- or three-wire technology, optionally 0–5 V or 0–10 V. Intended for laboratory and reference measurements as well as for systems requiring 0.10 % or better accuracy. The measuring cell is a single piece of 17-4 PH stainless steel, fully laser-welded and resin-potted. The LabTP14 version achieves ≤ ±0.05 % and is offered from 1 bar with 4–20 mA in three-wire technology.

Nominal pressure via selection: relative 100, 250 and 500 mbar as well as 1, 2.5, 5, 10 and 20 bar (zero point at atmospheric pressure), absolute 1, 2.5, 5, 10, 20, 50, 100, 250, 350, 500, 700, 1000, 1500 and 2000 bar (zero point in absolute vacuum). The price depends on the measuring range and sensitivity.

Technical Data

• Output: 4–20 mA (two- or three-wire) · 0–5 V or 0–10 V · Linearity and hysteresis ≤ ±0.10 %, LabTP14 ≤ ±0.05 %, calibration tolerance ≤ ±0.1 % · Load min. 3 kΩ (voltage), 0 to 470 Ω (current).

• Temperature influence: Zero point ≤ ±0.005 %/°C, characteristic value ≤ ±0.005 %/°C · Zero point ±10 %, adjustable internally under the nut.

• Response frequency: 0.5 to 5 kHz.

• Supply: 12–24 Vdc for 4–20 mA and 0–5 V, 15–24 Vdc for 0–10 V, maximum 28 Vdc · Consumption 30 mA (three-wire) or 20 mA (two-wire) · Insulation resistance > 2 GΩ.

• Connection: DIN 43650-A plug according to ISO 4400 · optionally MIL4M plug with 3 m cable.

• Temperature: -10 … +70 °C · Protection class IP65 according to EN 60529.

• Process connection: G 1/4″ male thread, from 1000 bar G 1/2″ with stainless steel clamping cone · also BSP male thread. Tightening torque SW 27 with 28 N·m.

• Dimensions: Ø 25 mm, length 109 mm with DIN plug, 85 mm with MIL4M · Seat diameter ØF 6 mm up to 10 bar, 7 mm from 20 bar.

• Pressure limits: continuous 100 %, permissible 150 %, burst > 300 %, highly dynamic 75 % of nominal pressure.

Use and Conformity

Laboratory and reference measurements, test benches, calibration facilities and process control requiring 0.10 % or better accuracy. CE, RoHS and REACH; EN 61326-1 and EN 61010-1; Quality system according to EN ISO 9001. For versions from 20 bar, a declaration of conformity for food contact according to (EC) 1935/2004 and (EC) 2023/2006 (GMP) is available, material 17-4 PH (WN 1.4542).

On request: Calibration certificate.