PR 3117 Bipolar Isolating Converter
Boost signal clarity as well as safety with the PR 3117 Bipolar Isolating Converter. It transforms bipolar inputs into unipolar outputs accurately (<±0.05%), isolates against ground loops with 2.5 kVAC protection, and also reacts fast (<7 ms). Featuring over‑voltage, polarity, in addition to short‑circuit protection, it thrives in demanding environments. With approval for Zone 2/Division 2 and marine usage, it’s suitable for hazardous locations. Its slim 6.1 mm design allows panels to fit many channels effectively. Whether in renewable energy, chemicals, or water treatment, the PR 3117 ensures dependable, clean signals under tough conditions.
- Versatile input/output ranges (± current/voltage) with unipolar conversion
- High galvanic isolation (2.5 kVAC), robust protection, excellent EMC immunity
- Slim housing, fast response, as well as hazardous/marine Approvals for broad use
Description
The PR 3117 Bipolar Isolating Converter converts bipolar current or voltage signals into unipolar outputs. It supports bipolar input ranges of ±10/±20 mA or ±5/±10 V, and also provides selectable signal ranges via DIP switches. Moreover, it delivers high three‑port galvanic isolation (2.5 kVAC) which suppresses surges, eliminates ground loops, and protects control systems. The 3117, from PR electronics, includes over‑voltage, polarity, and short‑circuit protection at all terminals, thus improving system reliability.
- Conversion of voltage as well as current bipolar process signals to unipolar signals
- Multiple signal ranges are selectable via DIP-switches
- Fast response time < 7 ms in addition to high output load stability
- Excellent accuracy, better than 0.05 % of span
- Compact design with slimline 6 mm housing
- Fast and easy configuration of factory calibrated measurement ranges via DIP-switches
- A very low power consumption allows DIN-rail mounting without the need for any air gap
PR 3117 Bipolar Isolating Converter from PR electronics
Furthermore, response time for the PR 3117 stays under 7 ms with a signal‑to‑noise ratio above 60 dB. It meets NAMUR NE21 EMC guidelines and also operates between -13 to 158˚F (‑25 to 70˚C). In addition, its narrow 6.1 mm housing enables up to 163 modules per meter on DIN rails.
- The PR 3117 is an isolating converter for signal conversion of standard bipolar analog process signals into a unipolar analog signal.
- It offers 3-port isolation, provides surge suppression, as well as protects control systems from transients and noise.
- The 3117 also eliminates ground loops and is suitable for measuring floating signals.
- Mounting of the 3117 can be in Safe area or in Zone 2 and Cl. 1 Div 2 area and has approval for marine applications.
Technical Characteristics
- Flexible 24 VDC (±30%) supply via power rail or connectors.
- Excellent conversion accuracy, better than 0.05% of selected range.
- Inputs and outputs are floating and also galvanically separated.
- A green front LED indicates operation status for the device.
- All terminals are protected against over-voltage and polarity error.
- Meeting the NAMUR NE21 recommendations, the PR 3117 ensures top measurement performance in harsh EMC environments.
- High galvanic isolation of 2.5 kVAC.
- Fast input to output response time < 7 ms / > 100 Hz – 10 Hz bandwidth damping possible via DIP-switch.
- Excellent signal/noise ratio > 60 dB.
Applications
- Use in process control panels where bipolar sensors require conversion into unipolar signals for PLC, DCS, or SCADA monitoring.
- Installation in marine settings, or hazardous areas (Zone 2 / Division 2), thanks to ATEX/IECEx and marine approvals.
- Implement in chemical, oil & gas, water treatment, or food/beverage sectors with high electrical noise as well as long cable runs.
- Employ in retrofits or space‑limited panels, achieving high accuracy (<±0.05% span) without sacrificing footprint.
Brand
PR electronics
