TM 10-6640-238-13 2-1 CHAPTER 2 OPERATING INSTRUCTIONS Section I.  DESCRIPTION AND USE OF CONTROLS AND INDICATORS Alphabetical Index Paragraph Title Paragraph Operator Controls and Indicators...................................................................................................................... 2-1 2-1. OPERATOR CONTROLS AND INDICATORS. All operators should become thoroughly familiar with the operator’s controls and indicators and with the proper operating procedures for Modular Base Petroleum Laboratory (MBPL).  Certain precautions must be observed in the operation of equipment and its components.  Exterior controls and indicators are shown in Figure 2-1 and described in Table 2-1.  Circuit breaker locations are shown in Figures 2-2 and 2-3 and described in Tables 2-2 and 2-3.  Interior operator’s controls and indicators are shown in Figures 2-4 through 2-13 and are described in Tables 2-4 through 2-13.  Operator’s controls and indicators for items not listed in these tables are described in their respective TMs (See Appendix A for TM number). a. Exterior Controls and Indicators.  Figure 2-1 and Table 2-1 list exterior controls and indicators. Table 2-1.  Exterior Controls and Indicators Index Number Control or Indicator Function Water Inlet 1 Water Inlet Adapter Connection mates to a MS27020-10 male connector. 2 Garden Hose Adapter Two adapters provided to connect a standard garden hose to the MBPL.  One with male and one with female connector. 3 Water Inlet/Outlet Valve Selection Lever Selects position of water inlet/outlet valve.  Either IN or OUT for water directional flow. Power Panel 4 Purge Alarm Buzzer Indicates by sound if one of purge doors is not opened when purge cycle is initiated. 5 Power Input Connector/ Receptacle Input power connector for MBPL. 6 Outlet, 120V, 60 Hz Receptacle for supplying generator power. 7 Ground Lug Attach point for ground cable to ground MBPL. 8 Telephone Connection External convenience outlet.