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The following is a list of commonly asked questions regarding
this product. If you have any additional questions,
please feel free to contact us at 800-426-1306 for further
information. |
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| Can
I get a replacement Instruction Manual for this instrument? |
| Additional
Operator's Manuals are available for download by clicking
on the 'Downloads' section from the menu bar at the
top of this web page.
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| Is
it possible to have a Model 1700 amplifier customized
for my preferred gain and filter settings? |
| Yes,
in most circumstances, we can easily customize at our
factory any of our amplifiers' filter and/or gain settings.
Please contact technical support (800-426-1306, or tech@a-msystems.com
for more information.
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| Can
I extend my input cables beyond the standard 3 feet
using extension cables? |
| Yes,
and no. The cable can be longer than the default
3 feet, but care needs to be taken in how you make the
longer cable. Generally it is better not two splice
two wires together to create a longer wire as this will
introduce noise. You can increase the length of
the cable by splicing another shielded twisted pair
two conductor cable to the white input cable included
with the instrument. Make sure all three electrical
connections are made (shield, white wire, and black
wire).
The
preferred solution is that instead of splicing two cables
together, you order a new cable from us manufactured
to your desired length (Maximum input length is limited
to 12 feet because of noise and capacitance considerations).
Contact our customer service department for more information.
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| What
are the major differences between the Model 1700 Differential
Amplifier and the Model 1800 Microelectrode Amplifier? |
| The
1700 has 4 channels and the 1800 has two. The
1800 comes with preamplifiers (probes, headstages) while
the 1700 does not. Thus, while the 1700 and 1800
will work equally well in recording if you have electrodes
that are 1M-ohm or less, recording with high impedance
electrodes will require the headstage probe provided
with the 1800. The Headstage eliminates signal
losses due to long cables and the capacitance they generate.
The 1800 can monitor an external stimulus being delivered
through the recording electrode, while the 1700 can
not. The 1800 has a built-in impedance measuring
circuit, while the 1700 does not.
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| Sometimes,
My Model 1700 "stops working" when big noises
are introduced in the signal, such as when we touch
or move the electrodes. However, after a few minutes,
it begins to operate properly. Should I have the unit
repaired? |
| The
1700 is AC-coupled. So if large shifts in DC potential
occur (such as those generated by a large change in
noise), it takes time for the capacitors involved in
the AC coupling to charge up to the new DC value. After
that, the recording will continue.
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| My
Model 1700 is not working, but our university has an
excellent electronics facility. Can we repair the unit
ourselves? |
| It
is recommended that A-M Systems perform the needed repairs
as we are the most familiar with the units. However,
if you are confident in your electronic technician's
skills, you can always purchase the schematics for the
Model 1700 from us (Cat#693000) and attempt them yourself.
Please
note that any user-attempted repairs during the warranty
period may invalidate the warranty, and might invoke
additional charges to correct them if A-M Systems is
required to make repairs at a later date.
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| Can
I use this instrument outside of the United States? |
| All
of A-M Systems instruments can be modified to work outside
of the United States. Typically, this modification is
made at the factory (at no additional cost) prior to
shipping to our customers. Just inform the customer
service department where the instrument will be used,
so our technicians can prepare the proper power supply
modifications.
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| What
are the proper operating and storage conditions for
my Model 1700? |
| The
Model 1700 is designed to be used under laboratory conditions.
Operate in a clean, dry environment only. Do not operate
in a damp environment. Temperatures for storage and
operation should be between 5 °C and 40 °C. Storage
should be indoors in a cool dry place.
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