A-M Systems
131 Business Park Loop, P.O. Box 850 Carlsborg, WA 98324
6
Telephone: 800-426-1306 * 360-683-8300 * FAX: 360-683-3525
E-mail: [email protected] * Website:
Operating Instructions
Typical Set-Up Procedure
The Model 3000 comes with an input cable that connects to the DB15 input. One end of
this cable is left open to allow for maximum flexibility in connecting to extracellular
electrodes. The Model 3000 will function properly in this configuration if the head stage
(
HEAD STAGE
) LED is off.
The Head Stage Probe (optional) connects to the DB15 input and will function properly
if the head stage (
HEAD STAGE
) LED is on. The probe is used to connect the
extracellular electrodes to the amplifier. The
GND
connector on the front panel of the
amplifier should be used as the system ground in the particular recording medium (e.g.
bath or animal ground).
Note: Either the Head Stage
PROBE GND
or the
GND
on the
front panel must be connected to provide a return current path. If neither ground is
connected the Head Stage Amplifier will saturate and no signal will be measured.
Care should be taken to keep the power cables from all instruments as far away as
possible from the recording setup. One exception is the DC power cable that supplies
power to the model 3000. This side of the cable is DC and therefore does not carry
disrupting power line frequencies.
Proper grounding and shielding techniques
should be used to insure a minimum of interference.
Recording
This is a generalized procedure for setting up the
AC/DC Differential Amplifier
for
recording. Portions of this procedure may need to be modified for your specific
application.
1. If you are planning on using the Model 3000 with a head stage connect the Head
stage Probe cable to the
PROBE
connector.
2. Set the instrument controls as follows:
HIGH PASS
DC
NOTCH FILTER
OFF
LOW PASS
20 kHz
CAPACITY COMP.
counterclockwise
DC OFFSET FINE AND COARSE
knob
counterclockwise
DC OFFSET (+ OFF -)
OFF
GAIN
knob
50
INPUT (DIFF MONO GND)
GND
Summary of Contents for 3000
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