Druckmessung

Differential pressure transmitter
Type: PAS

The KOBOLD pressure transmitter type PAS is a high performance microprocessor based transmitter with flexible pressure calibration and flexible output. It features automatic compensation of ambient temperature and process variables.

By means of the HART® protocol it is possible to communicate with the device and to perform a configuration of various parameters. All data of the sensor are read into an EEPROM, modified and stored.

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Details

Applications

The pressure transmitter type PAS is available as piezoresistive pressure sensor and measures gauge pressure as well as absolute pressure. The sensor module converts the resistance into a digital value. The microprocessor control unit calculates the process pressure based on this digital value.

Special features
  • High accuracy: ±0.075% of the set span, optionally ±0.04% of the set span
  • Span ratio: 100:1
  • Automatic compensation of the ambient temperature
  • Configuration via handheld terminal or PC.
  • Membrane in 1.4404, Tantal or Hastelloy C
  • Explosion proof housing.
  • Attachment of various diaphragm seals (directly or via capillary lines)
Technical data
  • Measuring span: -1…1.5 bar to 0…600 bar
  • Accuracy: ±0.075% of the set span
  • Process temperature: -30 °C…+120 °C
  • Ambient temperature: -40 °C…+85 °C
  • Storage temperature: -40 °C…+85 °C

Wetted parts:

  • Membrane: 1.4404 (316L), Tantal, Hastelloy-C
  • Process connection: 1.4401, Hastelloy C
  • Liquid filling: silicone oil or inert filling liquid
  • Electronics housing: Die-cast aluminum (optionally 316L), flameproof Ex “d” enclosure
  • Protection class: IP67
  • Lacquer finish: epoxy-polyester or polyurethane
  • Mounting bracket: for 2″ pipe, 1.4301 (304) or painted steel
  • Process connection: 1/4-18 NPT i via adapter 1/2-14 NPT i
  • Display: 5-digit LCD
  • Power supply: 12…45 VDC, 17.5…45 VDC for HART® communication
  • Max. Load: 250 Ohm at 17.5 VDC, 550 Ohm at 24 VDC
  • Cable entry: ½”-14 NPT / G ½
  • Output: 2-wire 4-20 mA HART®, linear
Certificates and Approvals

ATEX II 2G Exd IIC T6…T4

Communication

HART®-protocol