Universal f/I-f/f converter
PR 4225
- Front programmable
- Input: NAMUR, NPN, PNP, Tacho, TTL , S0 & switches
- Output: Programmable bipolar mA / V, frequency or relay
- Universal power supply 21.6...253 VAC / 19.2...300 VDC
Functional highlights
- Measures frequencies up to 100 kHz.
- Active and passive current output ±23 mA / 0...23 mA.
- Buffered voltage output ±10 VDC.
- Linearization: Linear or square root function.
- 2-point process calibration.
- Programmable trigger levels -0.05…6.5 V.
- Programmable sensor supply 5…17 V.
- NAMUR sensor error detection.
- Advanced configurable input limits for increased safety.
- Digital output: NPN & PNP; 0...100 kHz with programmable logic level 5…24 V.
- Output relay with windows, setpoint and latch functionality.
- Simulation of process value during commissioning and maintenance.
- All terminals are over-voltage protected (24 VDC), polarity protected and short-circuit protected.
- The 4225 provides the required failure data (SFF and PFDAVG) for SIL 2 applications as per IEC 61508 / IEC 61511.
- Failure rates for 4225 correspond to Performance Level “d” according to ISO-13849.
Technical highlights
- Accuracy < 0.06% / span.
- Temperature coefficient 0.006% / °C.
- Response time < 30 ms.
- 2.3 kVAC, 3-port galvanic isolation.
- NAMUR NE21 and NE43.
Programming
- Configuration, monitoring and diagnostics using the PR 4500 detachable communication interfaces. Product-specific functionality includes communication via Modbus and Bluetooth using our PR Process Supervisor (PPS) application, available for iOS and Android.
- All programming can be password protected.
- Scrolling help text in 7 languages.
Mounting
- Units can be mounted side by side, horizontally and vertically, without air gap on a standard DIN rail – even at 60°C ambient temperature.
Note
- If you need an installation instruction in hard copy, you can order it for free when placing your order.
Data sheet & Manuals
Data sheet
- 4225.pdf
- Latest version
Manuals
- 4225V102_UK.pdf
- 4225V101_UK.pdf
- 4225V100_UK.pdf
- Previous versions
- Latest version
Manuals in Russian
- 4225V102_RU.pdf
- 4225V101_RU.pdf
- 4225V100_RU.pdf
- Previous versions
- Latest version
Supplementary documentation
EU Declaration of Conformity
- 4225DoC_EU_100_UK.pdf
- Latest version
UKCA Declaration of Conformity
- 4225DoC_UKCA_100_UK.pdf
- Latest version
Modbus configuration manual
- 4225_MCM_100.pdf
- Latest version
FMEDA report
- PR_4225_V1R0.pdf
- Latest version
EAC LVD declaration
- 4225_EMC_data.pdf
- Latest version
ISO 13849 declaration
- 4225_ISO_13849_declaration.pdf
- Latest version
PR default configurations
- PR_default_configurations.pdf
- Latest version
China RoHS
- China_RoHS.pdf
- Latest version
Approvals & Certificates
View variants
Environmental Conditions
| Operating temperature | -20°C to +60°C |
| Storage temperature | -20°C to +85°C |
| Calibration temperature | 20...28°C |
| Relative humidity | < 95% RH (non-cond.) |
| Protection degree | IP20 |
Mechanical specifications
| Dimensions (HxWxD) | 109 x 23.5 x 104 mm |
| Dimensions (HxWxD) w/ PR 4500 | 109 x 23.5 x 131 mm |
| Weight approx. | 160 / 165 / 150 g (A / B / C) |
| DIN rail type | DIN EN 60715/35 mm |
| Wire size | 0.13...2.08 mm2 AWG 26...14 stranded wire |
| Screw terminal torque | 0.5 Nm |
| Vibration | IEC 60068-2-6 |
| 2...13.2 Hz | ±1 mm |
| 13.2...100 Hz | ±0.7 g |
Common specifications
Supply |
|
| Supply voltage, universal | 21.6...253 VAC, 50...60 Hz or 19.2...300 VDC |
| Fuse | 400 mA SB / 250 VAC |
| Max. required power | ≤ 2.5 W |
| Max. power dissipation | ≤ 2.0 W (1) |
Isolation voltage |
|
| Test voltage | 2.3 kVAC |
| Input to any (working) | 250 VAC (reinforced) |
| Relay to relay (working) | < 115 VAC (reinforced), > 115 VAC (basic) |
| Relay to analog (working) | > 115 VAC (basic) |
| NPN to analog (working) | Isolated > 50 VDC |
| Push-Pull / PNP to analog (working) | Shared ground with analog output |
Response time |
|
| Response time (0...90%, 100...10%) | ≤ 30 ms |
Auxiliary supplies |
|
| Sensor supply limitation (terminal 44) | 23 mA, 5…17 V |
| Programming | PR 4500 communication interfaces |
| Signal dynamics, output | 18 bit |
| Signal / noise ratio | > 60 dB |
| Accuracy | See manual for details |
| EMC immunity influence | < ±0.5% of span |
| Extended EMC immunity: NAMUR NE21, A criterion, burst | < ±1% of span |
Input specifications
Frequency input |
|
| Frequency range | 0.001 Hz to 100 kHz |
| Time range, time function | 10 μs to 999.9 s |
| Max. frequency / min. pulse width, with input filter ON | 75 Hz / 8 ms |
Sensor specifications |
|
| NAMUR, trig-level LOW / HIGH | ≤ 1.2 / ≥ 2.1 mA |
| Tacho, trig-level LOW / HIGH | ≤ -50 mV / ≥ +50 mV |
| NPN / PNP, trig-level LOW / HIGH | ≤ 4.0 V / ≥ 7.0 V |
| TTL, trig-level LOW / HIGH | ≤ 0.8 V / ≥ 2.0 V |
| S0, trig-level LOW / HIGH | ≤ 2.2 mA / ≥ 9.0 mA |
Special voltage / current input |
|
| User-programmable trig-levels |
-0.05...6.50 V
0.0...10.0 mA |
Output specifications
Current output |
|
| Signal range |
-23...+23 mA (bipolar)
0...23 mA (unipolar) |
| Programmable standard ranges | 0...20, 4...20, S4-20, ±10 mA, ±20 mA |
| Load (@ current output) | ≤ 600 Ω |
| Load stability | ≤ 0.001% of span / 100 Ω |
| Response time, programmable | 0.0...60.0 s |
| Sensor error indication | 0 / 3.5 / 23 mA / none |
| Current limit | ≤ 28 mA |
Buffered voltage output |
|
| Signal range | ± 11.5 V |
| Programmable standard ranges | 0…5, 1…5, 0...10, 2…10, ± 5, ± 10 VDC |
| Load, min. | > 2 kΩ |
| Response time, programmable | 0.0...60.0 s |
Relay output |
|
| Relay functions | Setpoint, Window, Sensor error, Latch, Power and Off |
| Hysteresis | 0...100% |
| ON and OFF delay | 0...3600 s |
| Sensor error reaction | Break / Make / Hold |
| Max. voltage | 250 VAC / VDC |
| Max. current | 2 A |
| Max. AC power | 500 VA |
Frequency output |
|
| Frequency range | 0.001 Hz...100 kHz |
| Prog. pulse time (f ≤ 500 Hz) | 1…1000 ms |
| Pulse time > 500 Hz | Fixed 50% |
NPN / PNP / Push-Pull output |
|
| Isink max. | 130 mA |
| Voltage drop 130 mA | < 1.5 VDC |
| Ext. voltage (terminal 24) max. | 30 VDC |
| *Isource max. | 30 mA |
| Vout | 24 VDC ± 10% |
| Voltage | 5…24 VDC |
Observed authority requirements
| EMC | 2014/30/EU & UK SI 2016/1091 |
| LVD | 2014/35/EU & UK SI 2016/1101 |
| RoHS | 2011/65/EU & UK SI 2012/3032 |
Approvals
| c UL us, UL 508 | E248256 |
| SIL | Hardware assessed for use in SIL applications |
