ProDAQ 6151-AA Isolated Precision Thermocouple LXI Instrument

Analog Inputs: Each channel of the ProDAQ 6151 employs a 24-bit Sigma-Delta ADC to provide the highest possible measurement accuracy. Each channel is 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 voltage potentials but also eliminates the possibility of ground loop error. Each channel is protected against overvoltage, both short-term transient spikes as well as constant DC voltages up to ±30V. An EMI filter is included per channel to reduce the possibility of error due to high frequency conducted noise. This filter also acts as an Anti-alias filter for the Sigma-Delta ADC.
Simultaneous Sampling: The ProDAQ 6151 has a dedicated ADC per channel. This allows for true simultaneous sampling of all channels. The scan rate can be varied from 1 S/s to 1000 S/s, with a resolution of 1Hz.
Cold Junction Compensation: One of the keys to making precise thermocouple measurements is the accuracy of the Cold Junction Compensation. The ProDAQ 6151 is equipped with a dedicated temperature sensor per channel which is measured, along with the thermocouple input, during every scan. The sensor is thermally bonded to the cold junction in order to provide the most accurate and fastest response to changes in the cold junction temperature.
Open Thermocouple Detection: Each channel is equipped with open thermocouple detection functionality. It provides immediate indication in the event of a broken thermocouple, both in software and by a LED on the instrument’s front panel.
Analog Outputs: Each channel is equipped with 2 buffered analog outputs, ranging from 0V to +10V, with a level designed to cover the required temperature range for each thermocouple.
Various Mounting Options: The ProDAQ 6151 comes in a 1U high unit suitable for rack mount in a standard 19” rack if used with the ProDAQ 5725 Rack-Mount kit. The ProDAQ 6151 can also be desktop mounted using the ProDAQ 5726 Stackable Tabletop Feet Set.

• 19”, 1U Solution for 16 Thermocouple Channels
• Support for all common thermocouple types
• Channel Isolation up to 300 VDC (channel to channel and channel to ground)
• CJC Sensor per channel
• 24-Bit Sigma Delta ADC per channel
• Two Analog Outputs per channel, 0V to +10V
• Simultaneous Sampling of all channels
• Open Thermocouple Detection and Indication for all channels