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• For vacuum service (5-10 in Hg), install the restrictor without the blue dot to the EXHAUST port. 2. Connect your sample gas to the SAMPLE IN port. 3. Connect a vent line to EXHAUST OUT port. Teledyne Analytical Instruments Model 3000TA Quickstart Guide 4. If using remote calibration feature: • Connect zero gas to the ZERO IN port. • Connect span gas to the SPAN IN port. 5. Otherwise, calibration gases must be Tee'd into the sample inlet with appropriate valves. 6. Regulate the sample gas pres