ProDAQ 6172 Isolated Precision Strain Gage LXI Instrument
- 19”, 1U Solution for 8 Strain Gages, Voltages or IEPE/IPC sensors
- 120Ω and 350Ω bridge completion
- Channel Isolation up to 300 VDC (channel to channel and channel to ground)
- Up to 20V Programmable Excitation per channel
- 16-Bit SAR ADC per channel
- 1Sps to 5kSps Sample Rate
- +/-10mV to 10V Input Range per channel
- Simultaneous Sampling of all channels
- Isolated Analog Output: Two analog outputs on all channels for monitoring purposes
- Shunt Calibration on all channels
Description
Description:
The ProDAQ 6172 is an LXI instrument designed for 8-channel galvanically isolated precision strain gage measurements. It supports ¼, ½ and full-bridge completion with 120Ω and 350Ω strain gage completion resistors fitted as standard. It provides an easy to use, cost effective solution for the most demanding strain gage or IEPE/IPC measurement applications.
Each channel is galvanically isolated from any other and also from the chassis, with a working isolation voltage up to 300VDC. This allows any channel not only to float to different common-mode voltage potentials but also eliminates the possibility of ground loop error.
As a standalone LXI instrument the ProDAQ 6172 can be directly connected to your network and operated either through the built-in web pages or alternatively integrated into your data acquisition application using the VISA-based industry standard plug & play drivers provided. Multiple devices can be synchronized via the IEEE1588 precision time protocol or optionally via the LXI trigger bus. The unit is equipped with a redundant power supply and two Ethernet ports.
Specifications
Specifications:
- General
- Number of signal channels: 8
- Isolation: 300 VDC (Channel to channel and channel to chassis)
- Isolated Analog Output: Two per Channel, ±10V, Filtered, Short Circuit Protected, Continuous On with module power On
- Analog Input
- Input Signal Type: Differential, DC Coupled
- Input Ranges: ±10mV, ±20mV, ±50mV, ±100mV, ±200mV, ±500mV, ±1V, ±2V, ±5V, ±10V
- Gain Steps: 1, 2, 5, 10, 20, 50, 100, 200, 500, 1000, selectable per channel
- ADC Resolution: 16-bit
- ADC Sampling Rates: 1 Sps to 5 kSps, 1Sps resolution
- Filtering: 6-pole Bessel anti-aliasing analog filter, Programmable, Cut-off frequencies: 10Hz, 50Hz, 100Hz, 200Hz, 500Hz, 1kHz and Bypass
- Gain Accuracy: ≤ ±0.06% FSO
- Gain Linearity: ≤ ±0.02% FSO
- Gain Temp Coefficient: 50ppm/°C typical
- Input Offset Drift, gain 1: ±0.007%FSO/°C
- Noise, 1kHz Bandwidth, gain 500, at Analog output: ≤ 1.5mVRMS RTO
- Input Impedance: 20MΩ typical
- CMRR, gain 500, DC to 50Hz: ≥ 110dB
- EMI Filtering: Yes, per channel
- Channel Input Protection: Yes, ±30V, max. input current 10mA, max. 3A <10ms.
- Input Connector: D-Sub, 9-pin
- Excitation
- Excitation Type: Constant Voltage with auto balancing
- Excitation Range: 0 to ±10 V, Independent Positive and Negative Supplies
- Excitation Current: maximum 40mA per channel
- Excitation Setting: Programmable in 0.1V step
- Excitation Accuracy: ≤ 0.07% of set voltage
- Excitation Stability: ≤ 70 ppm/˚C, ≤ 0.01% of set voltage over 8 hours
- Excitation Monitoring: Offline read back to ADC
- Excitation Sensing: Internal or Remote sense with line resistance compensation
- Strain Gage
- Bridge Completion: ¼, ½ and Full Bridge
- Completion Resistors: 120Ω, 350Ω
- Gain, Filter, Excitation: Programmable per channel per software
- Calibration: Through external calibration source and software
- Bridge Balancing: Selectable, Up to +/-10mV RTO
- Shunt Calibration: 499kΩ, 0.1%, per channel
- Analog Output
- Output Voltage: ±10V
- Number of Outputs: 2 per channel
- Output Resistance: ≤ 1Ω, short circuit protected
- Control Interface
- Physical Interface: Two redundant network ports, 10/100/1000 Base-TX
- Software Interface: SCPI over VXI-11 protocol (VISA), TCP/IP, Web Interface
- Operating System Support: Windows 10
- Environmental
- Temperature: 5 °C to +50 °C (operational), -40 °C to +70 °C (storage only)
- Humidity: 5% – 95% (non-condensing)
- Size: 1U, 19”
- Power Supply
- Input: 85 – 264V AC, 47 – 63 Hz
- Power: 150W max.