Universal f/I-f/f converter

Name: Universal f/I-f/f converter 4225
Rating: 4.0 (7 reviews)

Get a quote within 24 hours

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.

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.

Units can be mounted side by side, horizontally and vertically, without air gap on a standard DIN rail – even at 60°C ambient temperature.

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
Isolation voltage
Test voltage	2.3 kVAC
Input to any (working)	250 VAC (reinforced)
Relay to relay (working)	< 115 VAC (reinforced)
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)	20 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

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

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