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The Model 1700 includes:
Please note that A-M Systems instruments are not approved for use with human subjects in either a clinical or research environment.
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.
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.
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 email@example.com for more information.
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.
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.
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.
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.
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.
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.
While not explicitly designed for use with a headstage, the Model 1700 can be modified to accept a headstage for a minimal charge.
We can modify the unit to work with a headstage, however, this comes with a functional cost as well as an actual price increase. Functionally, putting a headstage on the front end of one of these units eliminates the ability to use the stimulation mode on that channel of the amplifier, thereby preventing the user from passing current to the site through the electrode. In addition, the headstage is a DC unit, thus the amplifier will saturate if the offset between the electrode and the reference is too large. In the modified units, this is 1V, which should still provide plenty of room to record most signals.
When we modify a unit for use with a headstage, we decrease the gain on the inner channels by a factor of 10, so the overall gain remains as indicated on the switch labels. The modification consists of supplying power to drive the headstage, and this requires a slight circuit modification.
Please contact us for an accurate price quote for the modification.
A-M Systems is a leading global manufacturer and distributor of high-quality pulmonary and respiratory care products and precision electrophysiology instruments with the goal of making health care innovation and scientific research affordable. Both divisions are united by a singular commitment to our customers who challenge us to deliver high-quality products and services.
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