A-M Systems 3000 Instruction Manual - Page 7

Browse online or download pdf Instruction Manual for Amplifier A-M Systems 3000. A-M Systems 3000 18 pages. Ac/dc differential amplifier

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can significantly reduce unwanted interference from the power source, it will cause

some distortion of the signal, especially in frequencies below 100 Hz. Therefore, the

Notch Filter should only be used if other noise reduction techniques such as proper

grounding and shielding are inadequate.

This rotary switch enables the user to select the upper boundary frequency

LOW PASS:

that the input signal begins to be cutoff. Signals above the cutoff frequency will be

attenuated by a factor of 100 (-40 dB) per decade increase in the input signal

frequency. For example, if the

will be attenuated by a factor of 100 while a 100 kHz signal will be attenuated by a

factor of 10,000. One of the uses of this filter is to reduce high-frequency noise that is

above the frequency content of the signal being recorded.

Head stage indicator

This LED indicates whether the unit is configured for use with (

HEAD STAGE:

lit) or without (

STAGE

for use with a head stage pg. 5).

Power Supply

: This toggle switch is the main power switch, controlling the DC power input to

POWER

the main circuit of the instrument. The LED next to the toggle switch is lit when the

instrument is

. This button does not control the power input to the remote AC

Power Supply. Once the remote AC Power Supply is plugged in there is 30 Volts DC

to the unit. If this situation is undesirable please unplug the remote AC Power Supply

when the instrument is not in use.

A-M Systems

LOW PASS

off) a head stage (See configuring the Model 3000

HEAD STAGE

131 Business Park Loop, P.O. Box 850 Carlsborg, WA 98324

Telephone: 800-426-1306 * 360-683-8300 * FAX: 360-683-3525

E-mail: [email protected] * Website:

switch is set at

1 kHz

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, then a 10 kHz signal

HEAD