Related Manuals for G.R.A.S. 12AR
Summary of Contents for G.R.A.S. 12AR
- Page 1 G R A S SOUND & VIBRATION Skovlytoften 33, 2840 Holte, Denmark www.gras.dk gras@gras.dk...
- Page 2 Power Module Type 12AR Revision 08 09 2006...
-
Page 3: Table Of Contents
G.R.A.S. Sound & Vibration CONTENTS Introduction and Description........3 Polarization Voltages . -
Page 4: Introduction And Description
200 V for externally-polarized microphones Power Supplies The Type 12AR can run on batteries with a battery life of approximately 30 hours using G.R.A.S. preamplifiers, or from an external power supply of 4.5 - 24 V DC (see section 3). -
Page 5: External Features
7-pin power OK LEMO connec- Red LED Batt. tors Output BNC sockets Fig. 2.1 Front panel of the Power Supply Type 12AR Fig. 2.2 7-pin LEMO female socket 1B (external view) Power Module Type 12AR - Page 5... -
Page 6: Batteries And External Power Supply
The external power supply should be a mains/line adapter regulated to supply 4.5 - 24 V DC with the centre pin as the + terminal. When the Type 12AR is switched on via the l – O switch on the front panel, the green Power LED will light up, and the red Low Batt. indicator should remain extinguished to ensure correct operation of the unit. -
Page 7: Operation
If the fuse blows, first rectify the cause then replace it with a new low-impedance slow-blow fuse rated at 160 mA. Operation Make sure that power is available to the Type 12AR (see section 3) but don’t switch it on yet. Select which polarization to use (200 V for externally-polarized microphones or 0 V for pre- polarized microphone). -
Page 8: Specifications
4 x LR6 (AA) batteries 93/68/EEC WEEE directive: 2002/96/EC RoHS directive: 2002/95/EC G.R.A.S. Sound & Vibration continually strives to improve the quality of our products for our customers; therefore, the specifications and accessories are subject to change. Power Module Type 12AR - Page 8...