CHAPTER 1 INTRODUCTION
Section I. General
1-1 Purpose. This Technical Manual (TM) describes the operation and maintenance of the Equipment Monitoring
System (EMS) on Water Purfication Barges . Information on other systems installed onboard is in TM 55-1930-209-
14&P-1 thru P-10 and P-12 thru P-17. TM 55-1930-209-14& P-18 contains appendices common to all TM's. Location of
major barge components is shown in Figure 1-1.
1-2 Scope. This onboard EMS monitors operation of several equipment components onboard the Reverse Osmosis
Water Purification Unit (ROWPU) barge and displays this data on a video monitor. It also uses alarms to alert
crewmembers when an operating condition goes beyond a preset range.
1-3 Warranties and guarantees. Manufacturers' warranty/guarantee information is in Chapter 7.
1-4 Maintenance forms and records. Required maintenance forms and records are explained in DA PAM 738-750, The
Army Maintenance Management System (TAMMS)
1-5 Destruction of Army materiel to prevent enemy use. This shall be as directed in TM 750-244-3.
1-6 Storage. For storage procedures concerning this system, refer to Chapter 5 Section II. Description and data
1-7 Description. EMS main components are the alarm/casualty monitoring equipment, two 12-volt dry cell batteries, a
battery charger, two strobe lights, two horns and a buzzer. Additional Information about EMS major components Is In
Table 1-1 The alarm/casualty monitoring equipment consists of various sensors and switches, a main processor,
keyboard, video monitor, alarm relay module, main power switch and a bilge alarm module. A block diagram of EMS
components is shown In Figure 1-2. Figure 1-3 shows the arrangement of these components on the barge The
installation Is also shown on drawings listed in Appendix A.
1-8 Capabilities. The EMS main processor unit can accept information from as many as 168 different Inputs (9 rate, 63
analog, and 96 switches) On the barge, however, only 39 are used. 1 rate, 13 analog, and 25 switches Table 1-2 lists the
various EMS switches and sensors, their quantities and locations, and type of video monitor display. The keyboard and
video monitor make up the station from which an operator selects and views any page of monitored information,
acknowledges alarms, and sets or changes alarm conditions
1-9 Special limitations. The system is designed to operate between 32 and 131°F.
1-10 Performance characteristics