Signal Conditioners
Metra
has been manufacturing amplifiers for piezoelectric transducers for
over 50 years. We offer economic charge amplifiers and signal
conditioners for IEPE transducers
including microphones.
| Charge and IEPE Conditioners | M72A1 | M72A3 | M72S1 | M72B1 | M72B3 | M72R1 |
| Channels | 1 | 3 | 1 | 1 | 3 | 1 |
| Gain charge / IEPE | 0,1 / 1 / 10 / 100 / 1000 mV/pC; 0 / 20 / 40 / 60 dB | 0,1 / 1 / 10 / 100 / 1000 mV/pC; 0 / 20 / 40 / 60 dB | ||||
| Integrators | single and double | single and double | ||||
| Input of transducer sensitivity | 4 digits; 0.001 to 9999 mV or pC/mech. unit by keys and LED display | none | none | none | ||
| TEDS support | IEEE 1451.4; templates 25 for force and acceleration and 27 for microphones |
none | none | none | ||
| Low pass filters |
0.1 / 1 / 10 / 50 kHz | 0.1 / 1 / 10 / 50 kHz | ||||
| High pass filters |
0.1 / 3 Hz |
0.1 / 3 Hz | ||||
| Inputs / outputs |
BNC sockets at rear of instrument |
BNC sockets at rear of instrument | ||||
| Level indication |
in percent by LED display and overload LED |
overload LED | ||||
| USB interface |
none | none | only with rack case |
none | none | only with rack case |
| Power supply |
7 to 30 V with mains plug adapter |
from rack case |
7 to 30 V with mains plug adapter | from rack case | ||
| Data sheet Instruction manual Charge attenuators MQ20 / MQ40 | ||||||
|
Device driver
for M72R8 and M72S8 rack cases
Setup tool for M72R8 and M72S8 rack cases |
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| 8 Channel IEPE Conditioner | M208A | M208B |
|
M208A - All-In-One:
|
|
| Gain |
0.1 .. 1000, incremental | 1 / 10 / 100 / 1000 |
| Frequency range | 0.1 Hz .. 100 kHz | 0.1 Hz .. 100 kHz |
| Readout display | 4 digits; RMS or peak; 1 s multiplex; with mechanical unit | - |
| TEDS support | automatic transducer sensitivity normalization | - |
| Ethernet | embedded web server hosts HTML page for readout and setup, Example/td> | - |
| RS-232 Interface | master and slave interface for PC control of up to 8 units by supplied control software or ASCII command set | - |
| Relay output | 1 relay with adjustable threshold for each channel | - |
| High pass filter modules | FB3- 3 / 5 / 10 / 30 / 50 / 100 / 300 / 500 / 1000 Hz (Butterworth, 2nd order) | FB3- 3 / 5 / 10 / 30 / 50 / 100 / 300 / 500 / 1000 Hz (Butterworth, 2nd order) |
| Low pass filter modules | FB2- 0.1 / 1 / 3 / 5 / 10 / 30 / 50 / 100 kHz (Butterworth, 4th order) | FB2- 0.1 / 1 / 3 / 5 / 10 / 30 / 50 / 100 kHz (Butterworth, 4th order) |
| Integrator modules | single integrator 3 - 1000 Hz (FBV) and double integrator 5 - 200 Hz (FBD) | single integrator 3 - 1000 Hz (FBV) and double integrator 5 - 200 Hz (FBD) |
| Connectors | 8 BNC inputs; 8 BNC outputs; shared BNC output; Sub-D output | 8 BNC inputs; 8 BNC outputs; shared BNC output |
| Power supply | 10 - 28 VDC; mains plug adapter 115 / 230 VAC | 10 - 28 VDC; mains plug adapter 115 / 230 VAC |
| Data sheet M208 Data sheet Filters Instruction manual M208A Instruction manual M208B | ||
|
M208A operating and measuring software
for Windows PCs
Firmware update |
||
| IEPE Conditioning Modules | M29 | M33 | |
|
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| Gain | 1 | 1 / 10 / 100 / 1000 | |
| Low pass filter | - | Steckmodul FB2; 0.1 .. 30 kHz; 4 poles | |
| High pass filter | - | Plug-in filterFB3; 3 .. 1000 Hz; 2 poles | |
| Integrator modules (replace high / low pass) | - | Plug-in integrator FBV (single) or FBD (double) | |
| Input / output socket | BNC | BNC | |
| Power supply | 5 .. 28 VDC | 5 .. 28 VDC | |
| Data sheet M29 Instruction manual | Data sheet M33 Data sheet Filters Instruction manual | ||
| Remote Charge Converter | IEPE100 |
| Gain (selectable by DIP switches) | 0.1 mV/pC 1 mV/pC 10 mV/pC |
| Frequency range | 0.2 Hz .. 65 kHz (-3 dB) |
| Input / Output | BNC female / male |
| Data sheet Instruction manual | |
