TransPort® PT900 Quick-Start Guide179.6 Selecting the Units of Measurement (cont.)To program the Units of Measurement options, complete the following steps:1. Move the slide switch at the top of the menu to either Metric or English toselect the desired PT900 global measurement units system.2. Based on your selection above, the units for all of the PT900 measurementparameters will be automatically populated with default units.a. Some of the parameters have only one units of measure choiceavailable. The text boxes for these parameters are grayed out, and thedefault units cannot be changed.b. Some of the parameters have multiple units of measure choicesavailable. The text boxes for these parameters are active, and thedefault units can be changed by opening the drop-down list andselecting the desired units.3. After you have completed your programming, click the OK button to saveyour choices or click the CANCEL button to discard the changes.9.7 Activating Channel 1Click the Setup Channel 1 button in Figure 13 on page 14 to open the Channel 1menu shown in Figure 16 on page 18. At the top of the menu, slide the toggleswitch to change the channel status from Off to On.