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AURA® PSG Wireless/Ambulatory Systems
AMPLIFIER SPECIFICATIONS
Amplifier   Grass Technologies AURA PSG system
13 referential electrode inputs
2 reference electrode inputs
7 differential inputs
2 DC coupled inputs
1 pulse-oximeter sensor connection
Referential Electrode Inputs
Input Signal Range   4 mV peak to peak full-scale
Input Impedance   12 Megohm or higher, all inputs including reference
Differential Input Impedance   20 Megohm or higher
Amplitude Accuracy   ±2.5 % (prior to software correction)
CMR (60 Hz)   >80 dB (signal referenced)
>100 dB (earth reference)
Noise   <2 µV peak to peak
Input Bias Current   <4 nA
Maximum Input   4 mV
Differential Inputs
Input Signal Range   4 mV peak to peak full-scale
Input Impedance   2 Megohm or higher
Amplitude Accuracy   ± 2.5 %
CMR (60 Hz)   >80 dB (signal referenced)
>100 dB (earth reference)
Noise   <2 µV peak to peak
Input Bias Current   <350 nA
Maximum Input   4 mV
Isolated DC Inputs
Input Signal Range   ±2.0 V
Input Impedance   1.5 Megohm
 
Impedance
Test Mode
  Referential inputs only:
1 kohms to 100 kohms, 10%
Calibration Signal   Referential inputs only:
500 µV peak to peak ±2%
Sampling Rate   200 samples/second/channel
Power   Rechargeable 3.6 V lithium battery
Capacity: 10 hours in the wireless mode, 12 hours in the tethered mode
Charging: The battery must only be charged with the external Grass Technologies BC-4 Battery Charger
Physical Size   Amplifier Unit approximately:
3.5" W x 5.9" H x 1.0" D
(8.9 cm x 14.9 cm x 2.5 cm)
Weight: 10 ozs. (280 g)
BASE STATION SPECIFICATIONS
DC Inputs
Input Signal Range   Single-ended (1-4): ±2.5 V/±10 V selectable
  Differential (5-8): ±2.5 V
Input Impedance   Single-ended (1-4): 10 Megohms
  Differential (5-8): 20 Megohms
DC Channels   2 channels
±2.5 V (8 DC inputs total with optional model DCM8)
Connectivity
to Host PC
  Standard 10Base-T Ethernet, TCP/IP protocol
Power   Medical-grade Isolated Power Supply
Physical Size   Base Station approximately:
7" W x 7.5" H x 2.7" D
(17.8 cm x 19.1 cm x 6.9 cm)
Weight: 2.3 lbs. (1.04 kg)
OTHER SPECIFICATIONS
Regulatory   AURA PSG System: certified to
FCC Part 15, Class B
UL 60601-1
CAN/CSA C22.2 No. 601.1
IEC 60601-1-1
IEC 60601-2-26
EN 60601-1-2
ETSI EN 301 489-1
ETSI EN 301 489-17
ETSI EN 300 328-1
CE marked to EC MDD (93/42/EEC)
Warranty   Lifetime Limited Warranty on Grass Technologies manufactured parts (see our full warranty for details)
Software   Fully supported by TWin

ORDERING INFORMATION
Model AUXL-P   AURA PSG Lab-based System Includes:
• Grass TWin Sleep Record & Review software, Archive Managing software, TWin Companion Holter EKG software, MS Office software.
• Grass patient-worn AURA PSG Amplifier System with built-in oximeter, CompactFlash Cards (2) and reader. Rechargeable Amplifier
Battery (2) with battery charger and power supply, Pouch for AURA PSG amplifier
and 4 sizes of straps. Base Station with 2 high level DC inputs, wall-mount bracket
and medical-grade power supply.
• Latest high-performance PC (network ready)*, keyboard, mouse, DVD+/- R/RW, 20-button programmable keypad for notation entry and system operation and Network Cabling Kit.
• DCM8 DC Input Module for up to 8 channels with wall-mount bracket.
Model
AUXL-P230
  Includes: same as Model AUXL-P, except for use with 230 V, 50 Hz operation
Model AUP-P   AURA PSG Portable System Includes:
• Grass TWin Sleep Record & Review software, Archive Managing software, MS Office software.
• Grass patient-worn AURA PSG Amplifier System with built-in oximeter, CompactFlash Cards (2) and reader, Rechargeable Amplifier
Battery (2) with battery charger and power supply, Pouch for AURA PSG amplifier
and 4 sizes of straps, Base Station with 2 high level DC inputs, wall-mount bracket
and medical-grade power supply.
• Latest high-performance lap-top computer
(network ready), mouse, DVD+/- R/RW, newwork cabling kit and Modem.
Model AURAPSG-SYS   AURA PSG Base System Includes:
• Grass TWin Sleep Record & Review software.
• Grass patient-worn AURA PSG
Amplifier System with built-in oximeter, CompactFlash Cards (2) and reader,
Rechargeable Amplifier Battery (2) with battery charger and power supply, Pouch for
AURA PSG amplifier and 4 sizes of straps, Base Station with 2 high level DC inputs,
and medical-grade power supply.
• (Provide your own PC or laptop.)**
    * Choose from the monitor options listed below.
** Grass personnel must approve all personal computers or laptops used with the
base unit.
Monitor Options:
Model FPM-24   24" flat-panel/LCD monitor
Model
ACS-21742
  Flat-panel monitor wall-mount bracket
Options:
Model AUXLP-TI   

In-service/Training: on-site (USA only), 1 day (3 days minimum recommended)

Model IPS115   Medical-grade Isolated Power System,
115 V, 60 Hz operation
Model IPS230   Medical-grade Isolated Power System,
230 V, 50 Hz operation
Model
ACS-21825
  Wireless Keyboard and Optical Mouse
Rack Carts & Cabinets:
Model  IT9   Mobile Rack Cart with drawer for full size keyboard, for use with a desktop PC
Model
ARM-AS40-QR
  Adjustable Arm with quick release for mounting the AURA on a Mobile Cart
Accessories:
Model F-EZM5   Impedance Meter
Model PSG-E-1   PSG Electrode Kit
Model PSGA-T-4   PSG Transducer Kit
Model UPS-1   Uninterruptible Power Source, 800 VA
(115 V, 50/60 Hz)
Model UPS-1-220   Uninterruptible Power Source, 800 VA
(230 V, 50/60 Hz)
Model UPS-2   Uninterruptible Power Source, 525 VA
(115 V, 50/60 Hz)
Model HUB-8   Network Hub (8-port 10/100/1000baseT switch)
Model HUB-16   Network Hub (16-port 10/100/1000baseT switch)
Oximeter Accessories:
   

Nonin Sensors

Digital Video Options:
    Panorama® Digital video/audio recording (complete with exception of camera, see Video Equipment) for use with PCs