PR 3333 Pt100 Temperature Converter

The PR 3333 Pt100 Temperature Converter is a compact and reliable temperature signal conditioner for converting standard Pt100 RTD temperature sensor readings into a passive analog current signal for industrial process control and automation systems. Ideal for harsh environments, this loop-powered Pt100 temperature converter supports 2-, 3-, or 4-wire RTD configurations. Furthermore, the 3333, from PR electronics, delivers excellent conversion performance with accuracy better than 0.1 % of span and a high signal-to-noise ratio (> 60 dB).

• The PR 3333 is a Pt100 temperature converter which measures a standard 2-, 3- or 4-wire Pt100 temperature sensor, and also provides a passive analog current output signal.
• All terminals feature protection against over-voltage, polarity, and short-circuit. 
• The device can mount in safe areas or in Zone 2 / Division 2 hazardous areas and also features approval for marine applications.

PR 3333 Pt100 Temperature Converter from PR electronics

Featuring selectable fast (< 30 ms) or damped (300 ms) response times, the PR 3333 Pt100 Temperature Converter ensures both rapid reaction to temperature changes and noise-free outputs when necessary. Its versatile loop-powered design (3.3–35 VDC) eliminates the need for an external power supply, thus simplifying installation and reducing wiring complexity.

• Flexibly loop-powered by 3.3 to 35 VDC via connectors.
• Excellent conversion accuracy in all available ranges, better than 0.1% of span.
• < 30 ms fast response time with simultaneous sensor error detection when selected.
• Selectable 300 ms response time when signal dampening is necessary.
• Meeting the NAMUR NE21 recommendations, this device ensures top measurement performance in harsh EMC environments.
• The PR 3333 meets the NAMUR NE43 standard defining out of range and sensor error output values.
• Excellent signal / noise ratio > 60 dB.
• Wide ambient temperature range: -13 to 158˚F (-25 to 70˚C).

Easy Mounting, Installation, and Programming

Ideal for industrial and hazardous installations, the PR 3333 meets NAMUR NE21 and NE43 standards for superior EMC immunity and sensor error handling. Furthermore, it features certification for Safe Areas as well as Zone 2/Division 2 and marine applications. The slim 6.1 mm DIN-rail housing allows high-density mounting, up to 163 units per meter, thus maximizing panel space efficiency.

The 3333 features easy DIP-switch configuration for over 1,000 factory-calibrated temperature ranges and robust terminal protection against over-voltage, polarity reversal, and short circuits. Thus, the PR 3333 delivers dependable, high-performance Pt100 temperature conversion for water/wastewater, chemical, energy, and manufacturing applications.

• Easy configuration via DIP switches.
• Selectable DIP settings for easy configuration of more than 1000 factory calibrated measurement ranges.
• The narrow 6.1 mm housing allows up to 163 units per meter.
• Units can mount side by side, horizontally, and vertically, without air gap on a standard DIN rail, even at 158˚F (70˚C) ambient temperature.