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Model 6036, 4-Channel Charge/IEPE Amplifier-Filter-Digitizer




Features

  • Dual inputs, charge & IEPE
  • 0.04 to 10,000 mV/pC charge gain
  • 2-20mA current source for IEPE transducers
  • 1 to 5,000 voltage gain with ±0.05% accuracy
  • 100 kHz bandwidth
  • Charge & voltage insertion calibration
  • Continuously programmable, 4-pole low-pass filter
  • Up to 200kS/s per channel with 16-bit resolution
  • Buffered 10 Volt analog outputs
  • Two alarms with programmable upper & lower limits

Description

Model 6036 is a four-channel, programmable charge amplifier, filter and digitizer with a second input for piezoelectric sensors with integrated electronics (IEPE).

The high-performance charge amplifier can be used to measure dynamic acceleration, pressure, force and strain from piezoelectric transducers. Three charge-to-voltage input ranges optimize performance according to transducer sensitivity. A programmable time constant enables it to make quasi-static measurements. The charge amplifier has 2X overhead preventing its overload by signals in excess of full scale. A software controlled reset switch is provided that discharges the charge capacitor for immediate clearing of an overload signal.

The 6036 provides two modes of charge amplifier calibration. Voltage insertion mode injects dynamic signals in series with the transducer and input cable verifying the integrity of the input circuit. Charge calibration mode injects dynamic signals through a precision capacitor into the charge input simulating the output of a charge transducer. The voltage input for IEPE transducers has static or dynamic voltage substitution calibration. All static and dynamic calibration signals are provided by external sources that are easily removed to be sent out for periodic certification.

The IEPE input is for piezoelectric sensors with built-in charge amplifiers. It provides 2 to 20 mA excitation with 26 Volt compliance to the transducer. A voltage amplifier has gains of 1 to 5,000 with full bandwidth up to gain 1,000. The voltage amplifier is calibrated by static or dynamic voltage substitution.

The four-pole, low-pass Bessel filter has continuously programmable bandwidth from 50 Hz to 50 kHz. A post-filter gain of 1 or 10 can be selected independently for digitized and analog outputs. A high speed analog-to-digital converter digitizes the amplified and filtered signal for output to the 6000 data bus. In addition, each channel has a ±10 Volt calibrated analog output.




Overview  · Input  · Amplifier  · Filter  · Digitizer  · Calibration Source  · Mechanical  · Ordering Information 

Overview

Measurement Type
Charge
ICP/IEPE

Analog Bandwidth
100 kHz

Excitation/Transducer Power
ICP

Filter
4-Pole

Sample Rate
Up to 200 kS/s

Analog Output
Buffered Analog Output


Input

Charge Input
Three ranges: 250,000 pC, 10,000 pC and 500 pC full scale.

Accuracy
±0.2 %

Gain
0.04 mV/pC to 1,000 mV/pC with 0.05% resolution. Gains to 10,000 mV/pC with lower accuracy.

Time Constant
Programmable short, medium and long for each input range.

Hi-Pass Filter
Frequency response is greater than 0.5 Hz. May be bypassed for quasi-static measurements.

Stability
±0.01%/ºC

Linearity
0.1% of full scale at 1 kHz.

Noise (10 kHz)
0.02 pC RMS plus 0.006 pC RMS per 1000 pF of source capacitance referred to input.

Maximum Input
Over two-times the full scale charge input without charge converter overload.

Overload
Overload flag set when output of charge converter exceeds full scale.

O.L. Reset
Program command provides immediate recovery when using long time constants.

Source Impedance
Less than 30,000 pF. Greater than 10 Megohms.

Input Protection
±15 Volts differential, ±15 Volts common mode without damage.

Charge Calibration
Signal from external calibration source applied through a 2,200 pF capacitor to the charge input and calibrated to ±0.2%.

Series Calibration
Signal from external calibration source applied in series with the input transducer for testing transducer, cable, connections and amplifier.

Configuration (IEPE Input)
Voltage input, AC-coupled, 2-wire with shield.

Excitation
Current source 2 to 20 mA, 6 mA supplied.

Input Impedance (IEPE Input)
100K Ohms

Range
±2 mV to ±10 Volts.

Gain (IEPE Input)
Programmable from 1 to 5,000 with 0.05% resolution.

Gain Steps
Calibrated gains of 1, 2, 3, 5, 10, 20, 30, 50, 100, 200, 300, 500, 1,000, 2,000, 3,000 and 5,000 with ±0.1% accuracy or variable gain.

Gain Stability
±0.02% for 30 days, ±0.005%/ºC.

Linearity (IEPE Input)
±0.01% for gains <1,000, ±0.02% for gains 1,000 and above.

Noise (10 kHz) (IEPE Input)
2.0 µV RMS referred to input.

Input Protection (IEPE Input)
±30 Volts differential, ±15 Volts common mode without damage.

Voltage Calibration
Signal from external calibration source is applied to the amplifier input through a programmable attenuator.


Amplifier

Common Mode
70 dB plus gain in dB to 110 dB, DC to 60Hz.

CM Voltage
±10 V

Zero
Automatic zero to ±1.0 mV.

Zero Stability
±1 mV at constant temperature, ±0.2 mV/ºC.

Noise
0.3 mV RMS referred to output.

Bandwidth
0.5 Hz to 100 kHz (-3 dB) for gains to 1,000.

Slew Rate
3 V/µS


Filter

Type
Continuously programmable. Four-pole, low-pass Bessel (24 dB/octave).

Frequency
Continuously programmable with 1 Hz (lower frequencies) to 10 Hz (higher frequencies) resolution, ±2% accuracy.

Post Filter Gain
Post-filter gain of 1 or 10 may be selected independently for each output.

Other
Other filter characteristics and cut offs available.


Digitizer

Sample
±50 ns channel-to-channel time correlation.

Resolution
16-bits, two's complement output.

Rate
Programmable up to 200 kS/s 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 Source

Input
Differential, 2-wire with shield. Located on the rear panel of enclosure.

Impedance
50K Ohms when any channels on module are selected for calibration. 10,000 Megohms when channels not selected.

Attenuator
Programmable 1.0 and 0.01 attenuation. Attenuator accuracy at DC is ±0.02% for 1.0 and ±0.01% for 0.01. Rear panel connector is provided to monitor the calibration attenuator output.


Mechanical

Mounting
Occupies one slot in Series 6000 enclosures.

Connectors
Input connectors are BNC for charge and 15-pin Type D for IEPE inputs. Outputs are a 9-pin Type D. Type D mating connectors are supplied.

Operating Temperature
0 to +50 ºC


Ordering Information 

Ordering Information
6036-PF20/30K-BE4 - 4-Channel Charge Amplifier-Digitizer, 20Hz to 30kHz Filter, 200kS/s.
6036-PF50/50K-BE4 - 4-Channel Charge Amplifier-Digitizer, 50Hz to 50kHz Filter, 200kS/s.


 DOWNLOADS 

Model 6036
(PDF, 146KB)



 Complementary to Model 6036 


Model 6029
Model 6029 8-Channel AC/DC-Coupled/IEPE Amplifier-Filter-Digitizer

Model 6044
Model 6044 32-Bit Discrete Input/Output with Alarms

more available ..


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