HART Loop-powered Temperature Converter

Model : PR 3337

Brand: PR Electronics

  • High accuracy, better than 0.05% of span
  • Slimline housing of 6 mm
  • Excellent EMC performance
  • Selectable 60 ms / 60 s response time
  • Pre-calibrated temperature ranges selectable via DIP-switches

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Temperature Transducer, Transmitter


PR Electronics

Number of Inputs


Input Type

RTD, Thermocouple

Number of Outputs


Output Type

DC Current


DIP switch

Special Functions

Process signal calibration


< ±0.05% of span


ATEX, Zone2, DNV, EAC, FM, Zone2 – DIV2, IECEx, Zone2, UL 61010

Power Supply

Input loop-powered


2.5 kVAC

Operating Temperature

-25 to +70°C

Temperature Coefficient

< ±0.01% of span /°C

Protection Degree

IP 20


113x 6.1×115 mm



Other product features

70 g


175 × 150 × 15 mm


  • The 3337 temperature converter measures a standard Pt100, TC J and K temperature sensor, and provides an isolated passive analog current and HART signal output.
  • High 2 port isolation provides surge suppression and protects the control system from transients and noise.
  • The 3337 can be mounted in the safe area or in Zone 2 / Division 2 areas.
  • Approved for marine applications.

Technical characteristics

  • Flexibly loop powered by 6.2…35 VDC via connectors.
  • A 60 ms fast response time with simultaneous sensor error detection when selected.
  • Selectable internal/external CJC.
  • Excellent conversion accuracy in all available ranges, better than 0.05% of span.
  • Meeting the NAMUR NE21 recommendations, the 3337 provides top measurement performance in harsh EMC environments.
  • The device meets the NAMUR NE43 standard defining out of range and sensor error output values.
  • All terminals are protected against overvoltage and polarity error.
  • High galvanic isolation of 2.5 kVAC.
  • Excellent signal/noise ratio of > 60 dB.

Mounting / installation / programming

  • Selectable HART mode with HART 7 revision protocol enables extended device programming.
  • Selectable DIP-mode for easy configuration of more than 1000 factory calibrated measurement ranges with HART read only feature.
  • Selectable HART-mode to enable full HART read-write capability.
  • The narrow 6 mm housing allows up to 165 units to be mounted per meter of DIN rail, without any air gap between units.
  • Wide ambient temperature range of -25…+70°C.

Source: PR3337 Official Page

Product Documents:


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