The PR Electronics 3114 is an isolated universal converter that provides galvanic separation and precision signal conditioning for industrial process control and automation. It functions as both a power supply and signal isolator for 2-wire transmitters, enabling measurement of floating signals across multiple input types without direct electrical connection to the measurement system.
Technical Specifications
Input Compatibility
• RTD, thermocouple, and potentiometer (2-, 3-, and 4-wire configurations)
• 0–10 V DC and 0–20 mA analog inputs
• All standard Pt, Ni, and thermocouple sensors; internal Pt100 reference
Output Signals
• Active output: 0–20 mA or 0–10 V
• Loop supply output: >15 V @ 20 mA
Isolation & Accuracy
• 3-port galvanic isolation: 2.5 kVAC
• DC accuracy: 0.05%
• Long-term stability: <0.1% per 3 years
Response Time
• mA/V outputs: <5 ms and <7 ms
• Temperature measurement: 30 ms
Power Supply
• Input: 24 VDC (±30% tolerance)
• Loop-powered operation supported
• Direct wiring per device on DIN rail installations
• Power rail solutions compatible with 3000 series devices or PR 9410 control unit (96 W maximum)
• Redundant supply options available
Environmental & Physical
• Operating temperature: −25 °C to 70 °C
• DIN rail mount (EN 60715) or power rail mount
• Wire size: AWG 26–12 / 0.13 × 2.5 mm² stranded
• Screw terminal torque: 0.5 Nm
• Internal fuse: 2.5 A
• Pollution degree 2 or better; indoor use to 2000 m altitude
Safety & Certifications
• UL, Safety / FM Div. 2, ATEX Zone 2, IECEx Zone 2, DNV-GL marine
• Polarity-protected terminals
• NAMUR NE21 Burst A: <1%
• EMC compliant: CISPR 22
– Key Features
• Electronic hardware switches eliminate need to open the device for parameter modification
• Compatible with PR 4501 display/programming front and ConfigMate 4590 for remote configuration
• Flexible power architecture supports distributed or centralized supply schemes
• Marine-rated option with PR 9404 module stop
– Typical Applications
• Industrial process control with analog signal isolation
• Factory automation requiring galvanic separation
• Floating signal measurement in noisy environments
• 2-wire transmitter signal conditioning
– Compatibility & Integration
Integrates with PR Electronics 4501 display/programming interface and ConfigMate 4590 configuration software. Compatible with PR 3000 series devices and PR 9410 power control unit for multi-channel deployments. Marine installations require PR 9404 module stop.
