Metrix 5545-305-1-00-100 Accelerometer Signal Conditioner
Rp123000.00
Metrix 5545-305-1-00-100 Accelerometer Signal Conditioner
Series / Family: Metrix 5535 / 5545 Accelerometer Signal Conditioners
Model / Variant: 5545-305-1-00-100 (100 mV/g input)
Type: DIN-rail / module-mounted vibration transmitter / signal conditioner (accelerometer to 4–20 mA)
Description
This unit is part of the Metrix 5535 / 5545 family of accelerometer signal conditioners that accept signals from casing-mounted accelerometers and convert them into a proportional 4–20 mA current output for interface with PLCs, DCS systems, or other process monitoring systems. The detection circuitry is responsive to true RMS vibration, but the output scaling may be set to either RMS or peak units.
The “5545” variant includes a local digital display (3-digit LCD) of the vibration level in engineering units. It also retains the buffered dynamic signal output (via BNC) so that FFT analyzers or other diagnostic equipment can connect. The unit includes a sensor / cable integrity indicator (green LED); if the sensor or cable fails, the LED turns off and the output current drops below ~3.6 mA to signal a fault.
Additional options may include galvanic isolation, and high-/low-/band-pass filters (which affect the 4–20 mA output but not the dynamic signal).
This specific variant (100 mV/g) is intended for accelerometers that output 100 millivolts per g, enabling higher sensitivity for lower vibration levels.
Features
Converts accelerometer signal to 4–20 mA DC current output proportional to vibration
Supports sensor / cable health monitoring: LED indicator and sub-3.6 mA fault output
Local 3-digit LCD display of vibration level (for 5545 models)
Buffered dynamic (raw) output available via BNC connector
True RMS detection, with scaling to RMS or peak units
Optional high-pass / low-pass filtering (36 dB/octave) on the 4–20 mA channel
Optional galvanic isolation between input, output, and power
Sensor excitation provided (constant current, jumper selectable)
Compact module suitable for DIN-rail mounting
Technical Specifications
Parameter | Specification (for model 5545-305-1-00-100) |
Input Sensitivity / Sensor Input | 100 mV/g (accelerometer input) |
Sensor Excitation | 19 VDC constant current (4 mA standard) |
Output Signal | 4–20 mA DC (current source) |
Maximum Load Resistance | 600 Ω |
Frequency Response (Acceleration Mode) | 20 Hz to 20 000 Hz |
Frequency Response (Velocity Mode, if selected) | 2 Hz to 2 000 Hz |
Sensor Fault Behavior | Output current < 3.6 mA and LED off to indicate sensor / cable fault |
Dynamic Output | Buffered input signal available at BNC connector and terminal block |
Filters | Optional high-pass and low-pass filters (36 dB/octave). Note: filter section affects only the 4–20 mA output, not the dynamic output |
Local Display (5545) | 3-digit LCD, displays vibration level in engineering units |
Isolation | 500 Vrms isolation circuit-to-ground standard |
Operating Temperature Range | –10 °C to +66 °C (for 5545 version) |
Power Supply / Input Power | 20 to 30 VDC (reverse polarity and transient protection built in) |
Hazardous Area Certification | Optionally available (CSA / NRTL/C Class I, Division 2, Groups A-D) |
Housing / Enclosure | Polymer housing internally coated for RFI/EMI protection |
Weight | Approximately 0.5 kg (1.1 lbs) |
Dimensions | Module/DIN-rail form factor (as per datasheet outline) |
