Pickering launches high-density thermocouple simulation module

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Pickering launches high-density thermocouple simulation modulePickering Interfaces is launching a low voltage output module suitable for simulating the operation of a thermocouple. The 41-761 occupies a single PXI slot yet can provide up to 32 independently-isolated channels of thermocouple simulation. With ranges of +/-20mV, +/-50mV and +/-100mV it is suitable for simulating any thermocouple type.

Available with a choice of 32, 24, 16 or 8 channels, the 41-761 is part of a growing family of thermocouple simulators from Pickering. Each channel provides a low voltage output across two connector pins capable of providing +/-20mV with 0.7uV resolution, +/-50mV with 1.7uV resolution and +/-100mV with 3.3uV resolution, covering most thermocouple types. The use of two wire outputs and isolation from ground ensures that the 41-761 can be used to accurately simulate low voltages even in the presence of common mode voltages in the system. Each simulation channel can provide an open circuit setting to simulate faulty wiring connections to a sensor. For improved accuracy, each channel of the Low Voltage Output carries accurate calibration data stored in EEPROM on the module. Regular calibration of the channels is not necessary.

When used for Thermocouple Simulation the 41-761 can be connected straight into the measurement system, bypassing the need for Isothermal Blocks and Cold Junction Compensation. To assist in this, Pickering also offers a 78-pin connector solution that has 32, 24, 16 or 8 copper twisted pairs terminated with mini copper thermocouple plugs.

Keith Moore, CEO at Pickering Interfaces says: “The accurate and reliable simulation of thermocouples is required by customers in demanding markets such as defence, aerospace and automotive. This new, high-density solution can be supported in PXI and Pickering’s modular LXI/USB chassis.”

Further information about the 41-761 is available at

06 February 2020

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