No products in the cart.
Signal Conditioners
PR 3225 Universal Frequency Converter
Availability:
In stock (can be backordered)
- Part Number: PR 3225
- Variants: PR 3225A | PR 3225B
- Make: PR Electronics | Origin: Denmark | Condition: New
• High-speed measurement up to 100 kHz
• Universal input: NAMUR, NPN, PNP, Tacho, TTL & S0
• Active current (0-23 mA) or voltage (0-10 VDC) output
• 2.5 kVAC galvanic isolation for signal integrity
• Compact 6.1 mm DIN rail mounting
• Direct configuration via DIP-switches or 4500 series interface
Price range: €233.00 through €247.00
PR 3225 Universal Frequency Converter
The PR 3225 Universal Frequency Converter is a high-performance signal conditioner designed for precise frequency-to-analog conversion in demanding industrial environments. As a versatile industrial automation component, it converts frequency signals from sensors like flow meters or tachometers into s dard current or voltage signals. Engineered by PR Electronics in Denmark, this converter features a ultra-slim 6.1 mm profile, making it a space-saving replacement part for crowded control panels. The PR 3225 Universal Frequency Converter excels in monitoring rotating machinery speed, ensuring system protection through its patented fast response time and simul eous sensor error detection.
Key IEPSOLnical Specs:
- Frequency Range: 0.001 Hz to 100 kHz
- Isolation: 2.5 kVAC (Input/Output/Supply)
- Power Supply: 16.8 to 31.2 VDC
- Response Time: ≤ 30 ms
Engineering Benefits:
Choosing the PR 3225 Universal Frequency Converter provides superior stability with 18-bit signal dynamics. As a trusted supplier favorite, its “Install & Forget” reliability is backed by a 5-year warranty, reducing maintenance costs. Whether you need to buy for a new build or a critical repair, the PR 3225 Universal Frequency Converter offers unmatched adaptability for modern process control.
RELEVANT ACCESSORIES
Configmate 4590 | Display Interface 4510 | Bluetooth Enabler 4512 | Modbus Interface 4511
Technical Details
| Function | Frequency Converter, Signal Converter |
|---|---|
| Input(s) | NAMUR, NPN, PNP, Pulse, Tacho, TTL |
| Output(s) | 1xAnalog, Relay |
| Power Supply | +24 Vdc |
Other
| Weight | 1.5 kg |
|---|---|
| Dimensions | 25 × 15 × 15 cm |
Environmental Conditions
| Operating temperature | -25°C to +70°C |
| Storage temperature | -40°C to +85°C |
| Calibration temperature | 20…28°C |
| Relative humidity | < 95% RH (non-cond.) |
| Protection degree | IP20 |
| Installation in | Pollution degree 2 & meas. / overvoltage cat. II |
Mechanical specifications
| Dimensions (HxWxD) | 113 x 6.1 x 115 mm |
| Weight approx. | 70 g |
| DIN rail type | DIN EN 60715/35 mm |
| Wire size | 0.13…2.5 mm2 / AWG 26…12 stranded wire |
| Screw terminal torque | 0.5 Nm |
Common specifications
Supply | |
| Supply voltage | 16.8…31.2 VDC |
| Fuse | 400 mA SB / 250 VAC |
| Max. required power | ≤ 1.2 W |
| Max. power dissipation | 0.65 W |
Isolation voltage | |
| Isolation voltage, test / working | 2.5 kVAC / 300 VAC (reinforced) |
| Zone 2 / Div. 2 | 250 VAC |
Response time | |
| Response time (0…90%, 100…10%) | ≤ 30 ms |
Auxiliary supplies | |
| Sensor supply limitation | 23 mA, 5…17 V |
| Signal dynamics, output | 18 bit |
| Long term stability, current, 1yr / 5yr @ 25 °C | ≤ 0.058% / ≤ 0.101% |
| Long term stability, voltage, 1yr / 5yr @ 25 °C | ≤ 0.032% / ≤ 0.058% |
| 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 | |
| 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 |
| NAMUR, trig-level LOW / HIGH | ≤ 1.2 / ≥ 2.1 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, active | 0…23 mA |
| Programmable signal ranges | 0 / 4…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 |
Voltage output | |
| Signal range | ≤ 11.5 VDC |
| Programmable signal ranges | 0…1; 0…5; 0…10; 0.2…1; 2…10 VDC |
| Load (@ voltage output) | ≥ 10 kΩ |
| Response time, programmable | 0.0…60.0 s |
Relay output | |
| Relay functions | Setpoint, Window and Latch |
| Hysteresis | 0…100% |
| ON and OFF delay | 0…3600 s |
| Power On delay | 0…9999 s |
| Sensor error reaction | Break / Make / Hold |
| Max. voltage | 250 VAC / VDC |
| Max. current | 2 A |
| Max. AC power | 500 VA |
| Max. DC current, resistive load ≤ 30 VDC | 2 ADC |
| Max. DC current, resistive load > 30 VDC | See manual for details |
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 |
| ATEX | 2014/34/EU & UK SI 2016/1107 |
Approvals
| ATEX | KEMA 10ATEX0147 X |
| IECEx | KEM 10.0068X |
| UL | UL 61010-1 |
| CCC | Pending |
Related products
- Display Indicators, Signal Conditioners
PR 7501 Field Mounted HART Transmitter
Make: PR Electronics | Origin: Denmark | Condition: New
✔ RTD, TC, Ohm, and bipolar mV input and analog output
✔ High definition local operator interface (LOI) with 3 optical buttons
✔ Selectable red or white backlight
✔ Ex d explosion proof / flame proof in aluminum or stainless steel version
✔ HART 7 functionality with HART 5 compatibilitySKU: n/a - Signal Conditioners, Head Mounted Temperature Transmitters
PR 5337A HART Temperature Transmitter
Make: PR Electronics | Origin: Denmark | Condition: New
✔ Supports RTD, TC, Ohm, and bipolar mV input signals
✔ Features 2 analog inputs and up to 5 device variables with status indication
✔ Selectable HART communication protocol: HART 5 or HART 7
✔ Hardware evaluated for use in SIL-rated safety applications
✔ Suitable for installation in Safe Area or Zone 2/22 environmentsSKU: n/a - Signal Conditioners
PR 3111 TC Converter – Isolated
Make: PR Electronics | Origin: Denmark | Condition: New
✔ Superior accuracy, exceeding 0.05% of span
✔ Exceptional EMC performance with effective 50/60 Hz noise reduction
✔ Selectable response times: under 30 ms or 300 ms
✔ Pre-calibrated temperature ranges adjustable through DIP switches
✔ Slim and compact 6.1 mm housing designSKU: n/a
