National Instruments TBX-68S Installation Manual

Contents

specifications

© National Instruments Corporation 3 TBX-68S Isothermal Terminal Block6. Replace the terminal block cover and tighten the cover screws.Figure 1. TBX-68S Parts Locator DiagramInstalling Your Terminal BlockNote To minimize the temperature gradient inside the terminal block and thus maintain itsisothermal nature for accurate cold-junction compensation, place the terminal block awayfrom extreme temperature differentials.Refer to Figure 2 as you perform the following steps to connect the terminalblock to the NI 2501 or NI 2503 connector:1. Attach the connector on one end of the cable to the NI 2501 or NI 2503connector. The two connectors should snap together in place.2. Attach the connector on the other end of the cable to the terminal blockconnector. If you use the SH6868S cable, the two connectors shouldsnap together. The R6868 ribbon cable has no latches and shouldsimply join together without a snap.1 Cover Screws2 Cover3 Cover Opening4 Signal Wires5 Screw Terminals23514