Page 1 [2]
Comet XL® Lab-based EEG - Recording & Review
SYSTEM SPECIFICATIONS
Amplifier   Grass Technologies AS40 with 40 channels of data (expandable up to 50*): 32 referential EEG inputs (AC), 1 reference input, 1 patient ground 8 bipolar AC channels
  * Maximum data channel count is determined by the type of AC and DC input modules in use.
AC Input
Signal
Range
  Referential and Bipolar AC channels: 4 mV peak to peak full-scale
  Differential DC voltage tolerance: 500 mV max
DC Input
Signal Range
  ±2.5 volts
Input
Characteristics
  10 Megohm impedance, all inputs including reference
  All referential and bipolar AC inputs electrically isolated from earth ground
Frequency
Response
  0.5 Hz to 100 Hz, -3 dB
0.1 to 100 Hz recoverable with TWin
Amplification   AC channels: 1200 ±2%
Vertical Resolution   16 bits (0.06 µV/bit)
Sampling Rate   800 samples/second/channel, simultaneous sample and hold. Data stored at 200 or 400 samples/second, user definable via TWin software
CMR  

>100 dB, all AC channels, at 50/60 Hz

Noise   <2 µV peak to peak referred to input
Impedance
Test Mode
  Referential inputs only: 30 Hz square wave; range, 1 kohm to 100 kohms, 10%
Calibration Signal   Referential inputs only: 500 µV peak to peak ±2%; 5 Hz square wave
Patient Bias
Current
  Maximum: <4 nA
Typically: 300 pA
Event Input   1 pushbutton patient signaling input
Photic   1 photic (flash unit) control line
Connectivity to
Host PC
  Standard Ethernet, TCP/IP protocol
Physical Size   AS40 Amplifier System: approximately
7"W x 6"H x 2"D (17.8 x 15.3 x 5.1 cm)
Weight: 2.3 lbs (1.1 kg)
  Personality Module alone: approximately
5"W x 4"H x 1.5"D
(12.7 x 10.2 x 3.8 cm)
Weight: 0.4 lbs (0.2 kg)
Software   Powerful and user-friendly TWin record, review and analysis EEG software included
Operating System   Windows® XP
Power   Medical-grade Isolated Power Supply
Warranty   Lifetime Limited Warranty on Grass Technologies manufactured parts (see our full warranty for details)
Regulatory   AS40 Amplifier System: certified to UL2601-1, EN60601-1, EN60601-2-26, EN60601-1-2, EN60601-1-1,
CAN/CSA22.2.No.601.1; CE marked to EC MDD (93/42/EEC),
Referential and Bipolar AC (patient) inputs isolated, Type BF

ORDERING INFORMATION
Model CMXL-E   Comet XL lab-based EEG recorder includes: Latest high-performance PC, keyboard and mouse, DVD+/-RW Archiver (internal), and 10/100 Base-T NIC. Several monitor options are available. TWin EEG Record and Review, Archive Managing software, MS Office software. 40-channel AS40 Amplifier System with tethered Universal Personality Module, Personality Module Adaptor, and Power Supply. PS60/LED Photic Stimulator. 20-button programmable keypad for notation entry and system operation. Medical-grade Isolated Power System
Model
CMXL-E230
  Includes: same as Model CMXL-E, except with Medical-grade Isolated Power System (230 V, 50 Hz) PS40/R-220 Photic Stimulator (230 V, 50 Hz), adjustable arm for flash lamp and cables
Monitor Options:
Model FPM-18   19" flat-panel/LCD monitor
Model FPM-20   20" flat-panel/LCD monitor
Model FPM-24   24" flat-panel/LCD monitor
Model ACS-21789   Flat-panel monitor wall-mount bracket
Options:
Model CME-TI   

In-service/Training: on-site (USA only), 1 day (2 days minimum recommended)

Model
ACS-21825
  Wireless Keyboard and Optical Mouse
Rack Carts & Cabinets:
Model IT9   Mobile Rack Cart with drawer for full size keyboard
Model
ARM-AS40-QR
  Adjustable Arm with quick release for mounting the AS40 on a Mobile Cart
Storage Devices:
Model
ACS-22001
  Removable Hard Drive Kit, USB, 500 GBytes
Accessories:
Model UPM-1   Integrated Universal Personality Module
Model UPM-2 or UPM-2-10  

Tethered Universal Personality Module

Model PMA   Personality Module Adaptor, required for tethered personality modules only
Model
CAB-21648-10
  Patient pushbutton, 10' (3 m) cable length, other lengths available
Model
CAB-21617
  Event button to AS40 adaptor, used to connect an event button directly to the AS40 when an optional DCM8 DC Input Module is not available 1' (0.3 m) cable length
Model
KBD-21203-58
  58-button Keypad for notation entry and system operation
Model
AS40WMB
  AS40 base unit wall-mount bracket
Model
F-EZM4D
  Grass Electrode Impedance Meter: International/Numeric symbols for Comet EEG UPM-2 Universal Personality Module
Model
EIM107-68
  Digital Impedance Meter, for use with AS40-based Amplifier Systems, includes EZ-SET Programming CD
Model EEG-E-1   EEG Electrode Kit
Model LH3-40   Floor Stand Flash Lamp Holder
Model
ARM-LH3-40
  Adjustable Arm for holding Flash Lamp
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)
Model ACS-21824   Wireless-G Notebook Adaptor
Model ACS-21823   Wireless-G PCI Adaptor
Model ACS-21822   Wireless-G Broadband Router, 4 ports
Model ACS-21841   Wireless-G Ethernet Bridge, 1 port
Digital Video Options:
Model AUPAN-1   Panorama® Digital video/audio recording (complete with exception of camera, see Video Equipment)
PSG Software/Hardware Add-on:
Model PSG-UT3   TWin PSG software, DCM8 DC Input Module for up to 8 DC channels, SPM-2 Tethered Sleep Personality Module, PMA Personality Module Adaptor, required for tethered personality modules, DCM8 wall-mount bracket and cabling
Model SPM-1   Integrated Sleep Personality Module
 

PSG/Sleep Diagnostics  | EEG/LTM | Research Instruments  | Accessories | Electrodes | Electrode Application

Special Offers | Used Equipment

Online Store | Ordering Information | Place An Order | Contact Us

©2008 Grass Technologies. All Rights Reserved.
An Astro-Med, Inc. Product Group