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Model 6129, 8-Channel AC/DC-Coupled/IEPE Amplifier-Filter-Analog Output



Features

  • AC or DC coupled inputs
  • 2 to 20 mA current excitation
  • Gains 1 to 5,000 with 0.05% accuracy
  • 4, 6 or 8-pole, low-pass filter
  • 100 kHz signal bandwidth
  • Buffered ±10 Volt analog output

Description

The 6129 input module has eight channels each providing excitation for IEPE transducers, programmable AC or DC-coupled differential instrumentation amplifier and low-pass filter. Each channel has a buffered analog output that can be selected for wideband or filtered response.

Using amplifier-per-channel architecture offers the highest accuracy and completely eliminates crosstalk between channels. It may be used to condition signals from piezoelectric transducers with built-in or inline charge amplifiers and other AC or DC voltage measurements. Input attenuation and current inputs, including 4-20 mA current loop, are available.

An adjustable 2-20 mA current source with 24 Volt compliance is provided for powering IEPE transducers. Gain is programmable from 1 to 5,000 providing ±2 mV to ±10 Volts full scale input sensitivity. Zero and gain calibrations are automatic.

Bandwidth is DC, 1 Hz when AC coupled, to 100 kHz. The low-pass filter may be employed to minimize alias errors for data sampling. A plug-in resistor module establishes the desired frequency. Filter frequency may be specified at the time of ordering. Frequency modules are available from 250 Hz to 50 kHz.






Overview  · Input  · Excitation/Transducer Power  · Amplifier  · Filter  · Digitizer  · Calibration  · Mechanical  · Ordering Information 

Overview

Measurement Type

4-20mA
ICP/IEPE

Instrumentation Amp

Voltage

Analog Bandwidth

100 kHz

Excitation/Transducer Power

+/-12V
+/-15V

24V

ICP

Filter

4-Pole
6-Pole

8-Pole

Analog Output

Buffered Analog Output


Input

Configuration

8 channels, differential, 2-wire with shield.

Input Type

Programmable AC or DC input. Input attenuator and current input are available.

Range

±2 mV to ±10 Volts.

Impedance (AC)

100k Ohms, shunted by 1,000 pF.

Impedance (DC)

50 Megohms, shunted by 500 pF.

Protection

±50 Volts differential, ±30 Volts common mode.


Excitation/Transducer Power

Current

2 to 20 mA. 6 mA is supplied unless otherwise specified.

Minimum Compliance

24 V

Verification

Short and open detection.

Voltage

±12 or ±15 Volts jumper selectable per channel, ±24 also available.


Amplifier

Gain

Programmable 1 to 5000, in 1, 2, 3, 5 steps, with ±0.05% accuracy

Gain Stability

±0.01%, ±0.005%/ºC.

Linearity (Amplifier)

±0.01% for Gains < 1,000, ±0.02% for gains > 1,000.

Common Mode

60 dB plus gain in dB to 110 dB, DC to 60 Hz.

CM Voltage

±10 V

Zero

Automatic to ±1 mV.

Zero Stability X1

±1 mV, ±0.2 mV/ºC

Zero Stability X1000

±5 mV, ±1 mV/ºC

Noise X1

0.2 mV RMS for 20 kHz bandwidth.

Noise X1000

2.8 mV RMS for 20 kHz bandwidth.

Bandwidth

DC to 100 kHz (-3 dB). 1 Hz to 100 kHz (-3 dB) in AC coupled mode.

Slew Rate

3.2 V/µS

Analog Output (Amplifier)

±10 Volts full scale, 20 mA. Programmable for wideband or filtered response.
Buffered Analog Output.


Filter

Type

Single frequency four-pole (standard) or 4 frequency four-pole or 2 frequency eight-pole Bessel.

Frequency

From 250 Hz to 50 kHz
Standard Four Pole: 10 kHz
4 Frequency Four Pole: 10 Hz, 1 kHz, 10 kHz, 20 kHz
2 Frequency Eight Pole: 2 kHz and 20 kHz.

Noise

1 mV peak, RTO.

Other

Other filter characteristics and cut offs are available.


Digitizer

Sample

±50 ns channel-to-channel time correlation.

Resolution

16-bits, two's complement output per channel.

Rate

Programmable up to 200 kS/s digitizer per channel.

Digitizer Linearity

±1-1/2 LSB (±0.004%)

Continuity

Monotonic to 15 bits.

Alarms

Two alarms each with upper and lower limits that are programmable from negative to positive full scale. Limits checked on each ADC sample.


Calibration

Voltage Substitution

Alternate input for external calibration source. Programmable 1, 0.1 and 0.01, attenuation with ±0.02% accuracy. Attenuator output may be connected to output bus for accuracy check.

Zero Calibration

Amplifier input disconnected and shorted for zero calibration.


Mechanical

Mounting

Occupies one slot in Series 6000 enclosures.

Connectors

Input connector is 50-pin Type D. Output is 15-pin Type D High Density. Mating connectors are supplied.

Temperature

0 to +50 ºC


Ordering Information 

Ordering Information

6029-BE4 - 8-Ch Voltage/IEPE Single Freq, 4-Pole Bessel
6029-HV - 8-Ch Voltage/IEPE 2-Freq, 8-Pole Bessel

6029-I - 8-Ch Voltage Digitizer w/ 100:1 Attenuator

6029PF2-BE8 - 8-Ch Voltage/IEPE 2-Freq, 8-Pole Bessel

6029PF4-BE4 - 8-Ch Voltage/IEPE 4-Freq, 4-Pole Bessel

6083 - 8-Channel BNC Adapter

Note

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 DOWNLOADS 

Model 6129
(PDF, 99KB)


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