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AC Powered Frequency Input DIN Rail Signal Conditioner

Item# DRI-FR-Series

In stock

Lead Time ( If not in Stock): 0 week

AC Powered Frequency Input DIN Rail Signal Conditioner DRI-FR-Series DRI-FR-Series
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  • Eliminates Ground Loops
  • Field Configurable Input Ranges 2 Hz to 10,000 Hz
  • Field Configurable Output Ranges
  • 150 mV to 150V Input Amplitude
  • Provides an Isolated DC Output in Proportion to Input Frequency
  • Touch Calibration
  • Universal AC Power 85 to 265 Vac

Product Specs

  • Accuracy Value 0 to 1 mA
  • Indicator Lit when power is on input <107% then 8 Hz flash input >-7% then 4 Hz flash
  • Maximum Ambient Humidity 95% RH non-condensing
  • Maximum Ambient Temperature 55 {C} (131 {F})
  • Minimum Ambient Temperature 0 {C} (32 {F})
  • Maximum Storage Temperature 70 {C} (158 {F})
  • Minimum Ambient Humidity 15% RH
  • Minimum Storage Temperature -25 {C} (-13 {F})
  • Supply Frequency 50 to 400 Hz
  • Accuracy Value 0 to 1 mA
  • Indicator Lit when power is on input <107% then 8 Hz flash input >-7% then 4 Hz flash
  • Maximum Storage Temperature 70 {C} (158 {F})
  • Maximum Ambient Humidity 95% RH non-condensing
  • Maximum Ambient Temperature 55 {C} (131 {F})
  • Minimum Ambient Humidity 15% RH
  • Minimum Ambient Temperature 0 {C} (32 {F})
  • Minimum Storage Temperature -25 {C} (-13 {F})
  • Supply Frequency 50 to 400 Hz

The DRI-FR is a DIN rail mount, frequency input signal conditioner with 1800 Vdc isolation between input, output and power. The field configurable input and output offers flexible, wide ranging capability for variable frequency drives, magnetic pickups, turbine flow meters, and other pulse or frequency output transducers.

The input of the DRI-FR can be configured for any frequency span from 2 to 10,000 Hz. The input amplitude threshold sensitivity can be adjusted from 150 mVp to 150 Vp to ensure accurate frequency measurement and minimize transient noise related errors. The maximum input amplitude is 150 Vrms. The output can be set for either 0 to 5V, 0 to 10V, 0 to 1 mA, 0 to 20 mA or 4 to 20 mA.

The DRI-FR can be field configured for virtually any frequency input to DC signal output within the ranges specified. There is also an 8 Vdc excitation source common to the input. This can be used as a signal source for relay contacts or as an excitation source for open collector type proximity sensors. The DRI-FR is AC powered and will accept any power between 85 and 265 Vac.

The DRI-FR utilizes Touch Calibration to greatly simplify configuration. The high and low input ranges are stored in nonvolatile memory and correspond to the high and low output range which is selected via DIP switches.

The DRI-FR utilizes three diagnostic LEDs. The green (RUN) LED indicates DC power and input signal status. Active line power is indicated by an illuminated LED. If the input signal is 7% or more high, the LED will flash at 8 Hz. If the input signal is 7% or more low, the LED will flash at 4 Hz.

The yellow (IN) LED is lit when calibrating the input. The red (OUT) LED is lit when calibrating the output.

The DRI-FR field configurable, frequency input signal conditioner is useful in eliminating ground loops and interfacing pulse output transducers, such as turbine flow meters and magnetic pickups, to data acquisition and control systems.

Advanced digital technology, combined with ASIC technology, provides a stable output at low frequencies for higher accuracy, and 3-way isolation which completely eliminates ground loops from any source.

Any 2 Hz range from 0 to 10,000 Hz can be converted to a full scale output signal (e.g. 0 to 2 Hz/4 to 20 mA or 9998 to 10,000 Hz/4 to 20 mA).

The factory default configuration for the DRI-FR is as follows:

Input Range:
0 to 1000 Hz
Sensitivity (Noise Rejection Level or Trigger Threshold of the Input): 1 Vrms
Output Range: 4 to 20 mA

Specifications
INPUT
Frequency:

Full Scale Range: 2 Hz to 10,000 Hz
Amplitude Range: 150 mVp to 150 Vrms
Impedance: >10 kΩ
Overvoltage: 180 Vrms max
Over-Range: 20 KHz max
Common Mode (Input to Gnd): 1800V max
Zero Turn-Up: 99% of full scale range (9998 Hz)
Span Turn-Down: 99% of full scale range (2 Hz)

OUTPUT
Voltage Output:
Range: 0 to 5V, 0 to 10V (dip-switch selectable)
Source Impedance: <100 Ω
Drive: 10 mA max (1 kΩ min @ 10 V)
Current Output:
Output: 0 to 1 mA, 0 to 20 mA, 4 to 20 mA (dip-switch selectable)
Source Impedance: >100 kΩ
Compliance:
0 to 1 mA: 7.5V max (7.5 kΩ max)
0 to 20 mA: 12V max (600 Ω max)
4 to 20 mA: 12V max (600 Ω max)
Accuracy (Including Linearity and Hysteresis): ±0.1% of selected range at 25°C
Temperature Stability: ±0.025%/°C maximum of selected range
Excitation Voltage: 8 Vdc, for open collector and contact closure inputs (5 mA short circuit current max)
Response Time (10 to 90%): 500 msec, or 100 times the period of the full scale frequency
Common Mode Rejection: DC: 100 dB; >60 Hz: 80 dB
Isolation: 1800 Vdc between input, output and power
ESD Susceptibility: Capable of meeting IEC 801-2 level 3 (8 KV)
LED Indication:
LVL (Green): Lit when power is on; input <107% then 8 Hz flash; input >-7% then 4 Hz flash
IN (Yellow): Input range programming status
OUT (Red): Output range programming status
Humidity (Non-Condensing):
Operating: 15 to 95% RH @ 45°C (113°F)
Soak: 90% RH for 24 hours @ 65°C (149°F)
Temperature Range:
Operating: 0 to 55°C (5 to 131°F)
Storage: -25 to 70°C (-13 to 158°F)
Power: 100 to 240 Vac ±10%, 50 to 400 Hz; 2.5 W max
Wire Terminations: Screw terminals for 12 to 22 AWG
Weight: 227 g (0.50 lb)

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