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Model 6160, 2-Channel Transducer Amplifier-Filter-Analog Output, 300CMV


Features

  • Isolated excitation & input with 300 Volts common mode
  • Plug-in channel configuration & calibration card
  • Voltage & current excitation with remote sensing
  • Automatic zero & balance
  • Voltage substitution, DAC or 2/4 step shunt calibration
  • Gains 1 to 5,000 with 50 kHz or 100 kHz bandwidth
  • Four six-pole low-pass filters, optional programmable filter
  • Dual buffered 10 Volt analog outputs

Description

The 6160 is a two-channel signal conditioning amplifier module with 50 kHz or 100 kHz bandwidth and analog outputs. The bridge input is ten-wire shielded with programmable constant voltage or constant current excitation and programmable completion for quarter, half and full bridge transducers. Automatic bridge balancing accommodates large imbalances without limiting dynamic range.

The input and excitation are isolated from the outputs, power and control interface. This gives the user complete freedom to ground the input without creating ground loops that introduce noise and offset errors.

The differential instrumentation amplifier has programmable gains from 1 to 5,000 and automatic zero. The standard filter is a six-pole Bessel with four programmable bandwidths. An optional four-pole Bessel filter has continuously programmable bandwidth.

A “features card” provides shunt calibration using dedicated inputs. Two-step, resistive shunt calibration is standard. Four-step shunt calibration and simulated shunt using a DAC with 16-bit resolution are also available. Voltage substitution using an external source is provided for traceable gain calibration.




Overview  · Input  · Bridge Input  · Voltage Excitation / Transducer Power  · Constant Current Excitation / Transducer Power  · Amplifier  · Filter  · Digitizer  · Calibration  · Mechanical  · Ordering Information 

Overview

Measurement Type
Bridge
ICP/IEPE
RTD
Strain Gage

Analog Bandwidth
50 kHz
100 kHz

Excitation/Transducer Power
Current
ICP
Voltage

Filter
6-Pole

Analog Output
Buffered Analog Output


Input

Configuration
Input configuration based on installed Features Cards. Features cards available for Bridge, IEPE and RTD. Other features cards available upon request.


Bridge Input

Bridge Configuration
2 channels, 2 to 10 wire inputs. Programmable bridge completion for full and half bridges and 120 Ohm and 350 Ohm quarter bridges.

Bridge Balance
Automatic by program control. Balance accuracy ±0.05% of range, ±1 mV RTO. Stability ±0.02% for 8 hours, ±0.005%/ºC. Supplied range is 2 mV/V (350 Ohm bridge).


Voltage Excitation / Transducer Power

Voltage Excitation
Programmable from 0.1 to 20 Volts with 0.5 mV resolution. Calibrated 2-Volt steps ±0.1%. 50 mA limited to 70 mA maximum.

Voltage Excitation Regulation
Each channel individually regulated. ±0.01% over input voltage range and no-load to full-load.

Voltage Excitation Stability
±0.01% for 30 days. Temperature coefficient less than ±0.005%/ºC.

Voltage Excitation Noise
200 µV peak-to-peak, DC to 10 kHz

Voltage Monitor
Excitation voltage or current is read by a program instruction. Accuracy is ±0.2%.


Constant Current Excitation / Transducer Power

Current Excitation
Programmable 0.1 mA to 51.2 mA with 1 µA resolution. Calibrated 5 mA steps ±0.1%.

Minimum Compliance
0.1 to 20 V

Current Regulation
±0.01% or ±0.1 µA for 10% line change.

Current Stability
±0.01% or ±2 µA for 30 days. Temperature coefficient is less than ±0.005% or ±1 µA/ºC.

Current Excitation Noise
2 µA or 5 µV peak-to-peak DC to 10 kHz.

Current Monitor
Excitation voltage or current is read by a program instruction. Accuracy is ±0.2%.


Amplifier

Input Range
±2 mV to ±10 Volts full scale, DC or AC coupled.

Gain
Programmable from 1 to 5,000 in 1, 2, 3, 5 steps with ±0.05% accuracy.

Gain Stability
±0.01% for 30 days, ±0.004%/ºC.

Gain Linearity
±0.01% for gains <1,000, ±0.02% for gain 1,000 and higher.

Impedance
50 Megohms, shunted by 500 pF.

Input Protection
±50 Volts, differential or ±350 Volts common mode without damage.

Common Mode
80 dB plus gain in dB to 120 dB for balance input and 110 dB for a 350 Ohm source unbalanced, ±300 Volts, DC to 60 Hz.

CM Voltage
Common Mode ±300 Volts operating, ±350 Volts without damage.

Zero (Amplifier)
Automatic zero ±1.0 mV. Stability is ±5 µV RTI, ±1 mV RTO, ±1 µV RTI/ºC, ±0.2 mV RTO/ºC. Short term ±2 µV RTI, ±0.4 mV RTO.

Zero Stability
±1 µV/°C RTI, ±0.2 mV/°C RTO or (±1 µV RTI, ±0.2 mV RTO) /°C

Source Current
±25 nA, ±0.05 nA/ºC.

Noise (10 kHz)
2.0 µV RTI plus 0.3 mV RTO, RMS.

Bandwidth
6160: 50 kHz for gains <1,000, 20 kHz for gains greater than 1,000.
6160HF: 100 kHz for gains <1,000, 50 kHz for gains greater than 1,000.

Slew Rate
5 V/µS


Filter

Type
4 Frequency Six-pole, low-pass Bessel or continuously programmable 4-pole Bessel.

Standard Filter
6060: 4-Frequency 6-Pole Bessel with 150 Hz, 625 Hz, 2.5 kHz, 10 kHz and wideband.
6060HF: 4-Frequency 6-Pole Bessel with 300 Hz, 1.25 kHz, 5 kHz, 20 kHz and wideband.

Programmable Filter
6060: 4-Pole Bessel, continuously programmable 4 Hz to 10 kHz.
6060HF: 4-Pole Bessel, continuously programmable 10 Hz to 20 kHz.

Other
Other filter characteristics and cut offs are available.


Digitizer

Digitizer Note
See Series 6000 to add the following onboard digitizing capability.

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

Resolution
16 bits, two's complement output.

Rate
6060: Programmable up to 100 kS/s digitizer per channel.
6060HF: Programmable up to 200 kS/s digitizer per channel.

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
Voltage substitution, signal from external calibration source is applied to the amplifier input. Programmable attenuator with steps of 1, 0.1 and 0.01, ±0.02% accuracy. Output of the attenuator is provided for calibration.

Shunt Calibration
Shunt Calibration based on capability of Installed Features Card.
FC1: Two steps, single shunt, internal or external.
FC2: Programmable resistive "DAC" shunt, 16-bit resolution.
FC5: Four-step, single shunt, external.
FC11: Four-step, double shunt, external.

Zero Calibration
Amplifier input disconnected and shorted.


Mechanical

Mounting
Occupies one slot in Series 6000 enclosures.

Connectors
15-pin inputs, 9-pin outputs, Type D. Mating connectors supplied.

Operating Temperature
0 to +50 ºC


Ordering Information 

Ordering Information
6160-PF4-BE6 - 2-Channel Transducer Amp, 4-Freq 6-Pole Bessel.

6160-PF4/10K-BE4 - 2-Channel Transducer Amp, 4-Pole PF 4 Hz to 10 kHz 4-Pole Bessel.

6160HF-PF4-BE6 - 2-Channel Transducer Amp, 4-Freq 6-Pole Bessel.

6160HF-P10/20K-BE4 - 2-Channel Transducer Amp, 4-Pole PF 10 Hz to 20 kHz 4-Pole Bessel

6060-FC1 - 2-step local/remote shunt.

6060-FC2 - DAC shunt.

6060-FC5 - 4-step single shunt.

6060-FC7 - Fixed AC Coupling.

6060-FC8 - RTD input.

6060-FC11 - 4-step double shunt.


 DOWNLOADS 

Model 6160
(PDF, 115KB)


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