Products > Integrated Conditioning Acquisition & Control Systems > Integrated Conditioning Acquisition & Control System I/O Modules > 6000 Series Analog I/O Modules > Model 6033  
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Model 6033, 8-Channel Strain/Bridge Transducer Amplifier-Filter-Digitizer


  • Quarter, half & full bridge conditioning
  • Voltage excitation up to 12 Volts
  • Shunt & voltage calibration
  • Automatic zero & balance
  • Gains 1 to 5,000 with 0.05% accuracy
  • Four-pole low-pass filter
  • Up to 10 kS/s per channel with 16-bit resolution
  • Two alarms with programmable upper & lower limits


Model 6033 may not be regularly available. Please see Model 6035, 6038 or 6039 for similar applications.

The 6033 input module has eight channels of transducer signal conditioning and digitizer. Each channel has regulated voltage excitation, programmable gain instrumentation amplifier, four-pole low pass filter and sample and hold amplifier. The high level outputs are multiplexed and digitized to 16 bits then output to the 6000 data bus. In addition to the digitized output, each channel has a wideband analog output.

The 6033 is used with 1/4, 1/2 and full bridge transducers, potentiometers and low-level voltage signals. It is particularly suited to strain gages where remote sensing is not a requirement. A shielded four-wire input provides signal and excitation connections to the transducer. Excitation is programmable from 0 to 12 Volts for all channels on the module. An individual regulator for each channel prevents loading or a short on one channel from affecting other channels. A calibration mode is provided that measures excitation voltage or current.

Voltage substitution is provided for gain calibration using an external voltage standard. A calibration attenuator enables the voltage standard to be used on its highest accuracy ranges and has a post-attenuator output for verification and calibration. Resistive shunt is provided for transducer calibration. Two alarm with programmable upper and lower limits are provided and checked each time the output is digitized. Analog outputs provide a means to independently monitor or record each channel.

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


Measurement Type

Strain Gage

Analog Bandwidth

1 kHz

Excitation/Transducer Power




Sample Rate (Digitizer)

Up to 10 kS/s

Analog Output

Monitor Output



8 channels, 2 to 4 wires plus shield for bridge and voltage. Input configured by plug-in jumpers.


Automatic by program control. Balance accuracy ±0.05% of range, ±1 mV RTO. Stability ±0.02% for 8 hours, ±0.005 %/ºC. Range set by resistor up to 10 mV/V, 2 mV/V (350 Ohms) is installed.


50 Megohms, shunted by 1,000 pF.


±50 Volts differential, ±30 Volts common mode.

Excitation/Transducer Power

Voltage Excitation

Programmable for 8 channels from 0 to 12 Volts with 3.3 mV resolution. Calibrated 1 Volt ±0.1% steps.


50 mA, limited to 70 mA. Short on one channel will not affect other channels.


±0.2% line and no-load to full-load measured at the input connector.


±0.01%, ±0.005 %/ºC

Excitation Noise

200 µV peak-to-peak.


Voltage or current selected by jumper plug.



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

Gain Stability

±0.01%, ±0.004%/ºC.

Linearity (Amplifier)

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

Common Mode

60 dB plus gain in dB up to 106 dB, DC to 60 Hz for ±10 Volts.

Zero (Amplifier)

Automatic to ±1 µV RTI, ±0.5 mV RTO.

Zero Stability

±5 µV RTI, ±1 mV RTO, ±1 µV/ºC RTI,
±0.2 mV/ºC RTO. Short term: ±2 µV RTI,
±0.4 mV RTO for 8 hours.

Source Current

±2 nA, ±0.01 nA/ºC

Noise (10 Hz)

0.5 µV peak, RTI.

Noise (1 kHz)

1.5 µV peak, RTI


1 kHz


800 µS to ±0.1% for 10X overload to ±10 V.



Four-pole, low-pass Butterworth.


Plug-in, 4 Hz to 1 kHz, 10 Hz supplied.


2 mV peak RTO.


Other filter characteristics and cut offs are available.



Simultaneous, within ±50 nS channel-to-channel. Droop is less than ±0.005%.


16-bits, two's complement output.

Sample Rate

Up to 10 kS/s per channel
Up to 10

Digitizer Linearity

2 LSB (0.006%)


Monotonic to 15 bits.


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



Programmable single shunt, 0.502 mV/V (350 Ohm bridge), ±1% installed.

Voltage Substitution

Alternate amplifier input for external voltage standard. Programmable attenuator steps of 1, 0.1 and 0.01 with ±0.02% accuracy. Output of the attenuator provided on rear panel connector for calibration.

Zero Calibration

Amplifier input disconnected and shorted.



Occupies one slot in Series 6000 enclosures.


Input connectors are 50-pin Type D. Mates are supplied

Operating Temperature

0 to +50 ºC

Ordering Information 

Ordering Information

6033 - 8-Ch Strain-Bridge, 4-Wire Input.
6081 - Screw Terminal Adapter.

6082 - RJ45 Plug Adapter with Bridge Completion for 120, 350 and 1,000 Ohm Gages.


Model 6033
(PDF, 87KB)

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