Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40 Page 41 Page 42 Page 43 Page 4435 DC POWER SUPPLIES The PS30M and PS50M units are solid state hand-portable combined charger/power supplies delivering a maximum of 30A or 50A at pre-set voltages of 28V DC for avionics use or 31.5V DC for the rapid re-charging of Powervamp’s unique 28V DC Coolspool portable aircraft start units. Voltage selection is by front-mounted switch. Both the PS30M and PS50M can be connected directly to the aircraft’s external ground power receptacle or to any of Powervamp’s portable battery start unit and are primarily for operators of small to medium helicopters, VLJs and DC business jets to citation size requiring a source of clean stable DC power for software updates. The front-mounted quick-disconnect output connector enables either model to be used as a free- standing portable bench-mounted power supply when used with optional lead sets or alligator clip leads. The PS30M or PS50, using optional connector sets, can operate in parallel with compatible Powervamp portable start units, delivering continuous power up to their maximum output. Much higher short-term power is then delivered on demand direct from the aircraft start unit. Automatic input voltage selection 90–264V AC/ 47–63Hz allows international use. Features l 28V DC/31.5V DC selectable output l Mains on/off switch l Output voltage selector switch l Output voltage LED status indicators l Short circuit/current limit protection l Corrosion resistant aluminium case with carry handle l Aircraft cable with Nato connector l Solid state voltmeter l Fitted with rubber anti-slip, shock absorbent feet l Heavy-duty padded jacket and cable bag See p. 36 for technical specifications PS30M and PS50M Padded protective jacket(s) Padded cable bag Models supplied as standard with: Country-specific input cord 2m Nato plug lead Typical power plant: Arrius, Rolls-Royce 250, PT6A-27. Continental and Lycoming piston, or power plants of a similar specification PS50M: in operation on a Cessna TTx