Features The LSI System II contains a current test feature which senses the quality of the electrode contact. If your electrodes are making poor contact with the tissue, the unit will emit a beeping tone and the LEDs on the Features mA output will drop to 0 and flash.
Page 3
D - PREMOD: When off (no light), channel 1 will operate at an uninterrupted 4000Hz and channel 2 will operate at 4000Hz plus the frequency selected on function A (Frequency Readout). When on (light on), both channels will operate at a carrier frequency of 4000Hz and both channels will be synchronized to deliver the frequency as shown in function A.
Page 4
Special Programming Options The LSI System II allows for several special programming options. 1- To create a frequency range: (Example: 70 to 100Hz) a. Select 80 – 120Hz range. b. Use down arrow on frequency adjust to lower readout to 100Hz, then push SET control in frequency section.
Page 5
Determine the cause of the irritation and replace the item as necessary. 11) Electrical stimulation should only be applied with an effective coupling medium. LSI recommends the use of LSI Silver Tab Electrodes included with your unit.
It is recognized that there are many brands, types, and styles of electrodes available. We recommend only using the repositionable LSI Silver Tab self-adhesive electrodes! We do not recommend using foilbacked electrodes or any kind of expired electrodes. The metal foil can cause changes in the waveform. To ensure maximum life of your electrodes, the skin should always be cleaned before applying the electrode.
High Resistance Indicator The LSI System II is designed to indicate when excessive resistance (high ohms reading) is present. This is normally due to using sponges which are only damp rather than wet or using an electrode which is conducting poorly.
/or the efficiency of the leads and electrodes. If the LSI System II Interferential unit does not seem to be operating properly, check the line cord, turn the unit on and check for proper operation. Check the lead wires by utilizing the electrode test function.
Page 9
Interferential current therapy may be produced by two different methods. They are commonly referred to as the “Frequency Difference” method and the “Premodulated” method. The LSI System II unit is capable of pro- ducing interferential current through either of these methods.
Page 10
Carrier frequency is the number of cycles per second a generator produces. Most interferential units, including the LSI System II, operate at a carrier frequency of 4000Hz. Carrier frequency is the number of cycles per second a generator produces. Most interferential units, Carrier frequency is the number of cycles per second a generator produces.
Page 11
Frequency Difference Method Frequency Difference Method With this method, both channels produce uninterrupted medium frequency current but of a slightly different With this method, both channels produce uninterrupted medium frequency current but of a slightly frequency. As an example, channel 1 produces 4000Hz and channel 2 produces 4080Hz. The difference different frequency.
Page 12
With Frequency Difference interferential, the uninterrupted frequency output from channel 1 and 2 will With Frequency Difference interferential, the uninterrupted frequency output from channel 1 and 2 will create Widensky Inhibition (nerve block) between the corresponding electrodes. This is due to the fact create Widensky Inhibition (nerve block) between the corresponding electrodes.
Page 13
Ramping The LSI System II Interferential has a built in ramping effect when the 10/10 or 10/50 modes are in use. As the 10 second cycle begins, the current will slowly “ramp up” over a period of 2.5 seconds to the preset inten- sity.
1 - Red 6 DIN to two .080 pin leadwires Accessories 1 - Black 6 DIN to two .080 pin leadwires 6 - packages of 2 x 2 LSI Silver Tab Repositionable Electrodes 6 - packages of 2 x 4 LSI Silver Tab Repositionable Electrodes 1 - line cord...
Company will, at its discretion, replace or repair this Product without charge within a period of 30 days from the date on which the defective Product is returned to the Company. All repairs must be performed by LSI International. Any modifications or repairs performed by unauthorized centers or groups will void this warranty.
Page 16
Do not send your unit to the factory without first securing an authorization number. Serial Number: _____________________ Sold To: _________________________ _________________________ _________________________ _________________________ Date Sold: _________________________ This warranty is non-transferable.
Need help?
Do you have a question about the System II and is the answer not in the manual?
Questions and answers