Abstract: A uniform temperature reference block for connection with the cold reference terminations of thermocouples inserted into a plurality of cavities in the block using a novel thermally conducting bridging bar having an electrically insulating covering and a corresponding plurality of electrically conducting uninsulated projections secured at successive spaced points of the bar along the insulating covering thereof and parallely extending transversely from the bar for inserting within the block cavities.

Abstract: A method of and apparatus for automated sensor validation diagnosis during and before operation of pluralities of sensors connected by multiplex sequence in a loop with analog-to-digital converter voltage measurement apparatus responsive to the sensor signals for the primary task of validating a process under monitor by the sensors, wherein provision is made for periodically or selectively quantitatively measuring either (or both) sensor-to-earth conductance or loop resistance of the sensors to insure sensor viability.

Abstract: A uniform temperature reference block for connection with the cold reference wires of a plurality of thermocouples employing a corresponding plurality of screw terminal modular connectors each provided with an insulated termination cavity containing a terminal conductor compressable, upon tightening the screw, against the thermocouple input wire and, in turn, the wire against an adjacent electrically insulated but thermally conductive projection of a thermal bridging bar, preferably of anodized aluminum, within the termination cavity, to establish electrical termination connection of the thermocouple wire with thermal coupling along the block.

Abstract: This disclosure is concerned with a novel digital multi-point recorder that is microprocessor-controlled and enables impact printing from in back of the recorder paper to provide a front visible flat print-out of pages of on-line running summary data suited for operator viewing in industrial and similar locations, and providing a record for direct use in reports and logs.

Abstract: This disclosure is concerned with a novel digital multi-point recorder that is microprocessor-controlled and enables impact printing from in back of the recorder paper to provide a front visible flat print-out of pages of on-line running summary data suited for operator viewing in industrial and similar locations, and providing a record for direct use in reports and logs.

Abstract: This disclosure is concerned with a novel digital multi-point recorder that is microprocessor-controlled and enables impact printing from in back of the recorder paper to provide a front visible flat print-out of pages of on-line running summary data suited for operator viewing in industrial and similar locations, and providing a record for direct use in reports and logs.

Abstract: This disclosure is concerned with a novel digital multi-point recorder that is microprocessor-controlled and enables impact printing from in back of the recorder paper to provide a front visible flat print-out of pages of on-line running summary data suited for operator viewing in industrial and similar locations, and providing a record for direct use in reports and logs.