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DIN Rail Signal Conditioner | AC Powered Frequency Input
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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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† All dollar amounts on this site are shown in Singapore currency.
Note: An ACPB power rail is required to power the modules and is ordered separately.
Ordering Example: (1) ACPB-2 AC power distribution bus for 2 modules, $96.00,
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Related Links -
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DRI-AC: |
AC Powered AC Input DIN Rail Signal Conditioner |
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DRI-PT: |
AC Powered Potentiometer Input DIN Rail Signal Conditioner |
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Keywords:DIN Rail, Signal Conditioner, AC input
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