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Mettler Electronics Sys*Stim 294 Instruction Manual

Neuromuscular stimulator
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Sys
Stim
294
*
®
Instruction Manual
®
1333 South Claudina Street • Anaheim, CA 92805, U. S. A.
Toll Free: (800) 854–9305 • Telephone: (714) 533–2221 • FAX: (714) 635–7539
Web Site: http://www.mettlerelectronics.com • Email: mail@mettlerelectronics.com
IR7–98
Rev.F_09/13/17
Copyright © 1999-2017 by Mettler Electronics Corp.—Anaheim, CA

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Summary of Contents for Mettler Electronics Sys*Stim 294

  • Page 1 ® 1333 South Claudina Street • Anaheim, CA 92805, U. S. A. Toll Free: (800) 854–9305 • Telephone: (714) 533–2221 • FAX: (714) 635–7539 Web Site: http://www.mettlerelectronics.com • Email: mail@mettlerelectronics.com IR7–98 Rev.F_09/13/17 Copyright © 1999-2017 by Mettler Electronics Corp.—Anaheim, CA...
  • Page 2 Mettler Electronics Corp.— Rev.F_09/13/17...

  • Page 3: Table Of Contents

    Sys * Stim 294 Instruction Manual— Rev.F_09/13/17 Table of Contents Section Title Page Introduction Introduction to the Sys * Stim 294 Introduction to this Manual Safety Precautions Caution Shipping Damage Package Contents Limited Warranty Symbol Glossary and List of Abbreviations Symbol Glossary Treatment Status Indicator Icons List of Abbreviations...
  • Page 4 Mettler Electronics Corp.— Rev.F_09/13/17 List of Figures No. Title Page Sys * Stim 294 Sys * Stim 294, Back view—Mains Power Switch and Line Cord connection Sys * Stim 294, Front View—Electrode Cable Connections Front membrane panel and LED indicators...

  • Page 5: Introduction

    Sys * Stim 294 Instruction Manual— Rev.F_09/13/17 Section 1: Introduction 1.1 Introduction to the Sys * Stim 294 Thank you for purchasing the Sys * Stim 294 four-channel neuromuscular stimulator. The microprocessor controlled Sys * Stim 294 provides interferential, premodulated, medium frequency, symmetrical biphasic, high volt and microcurrent waveforms with enhanced reliability and ease of use.

  • Page 6: Introduction To This Manual

    NOTE: All warranty repairs must be performed by Mettler Electronics Corp. or by a service facility authorized by Mettler Electronics to perform warranty repair work. A service manual for the Sys * Stim 294 is available from Mettler Electronics Corp. for a nominal charge.

  • Page 7: Caution

    The Sys * Stim 294 neuromuscular electrical stimulator is warranted against defects in materials and workmanship for a period of two years from date of purchase. During the applicable warranty period Mettler Electronics Corp. will, at its discretion, either repair or replace the Product without charge for these types of defects.
  • Page 8 Product. If any implied warranties apply as a matter of law, they are limited in duration to one year. Mettler Electronics Corp. shall not be liable for any indirect, special, consequential or incidental damages resulting from any defect in or use of the Product.

  • Page 9: Symbol Glossary And List Of Abbreviations

    Sys * Stim 294 Instruction Manual— Rev.F_09/13/17 Section 2—Symbol Glossary and List of Abbreviations 2.1 Symbol Glossary Electrical Stimulation Selector  Time display  1 5. 0 0 Time display LED’s. Displays treatment time and numeric values for  frequency, phase duration, on/off times and alphanumeric error codes. These LED’s will illuminate to prompt the clinician to input either time in seconds (s), microseconds (μs), or frequency (Hz).
  • Page 10 Mettler Electronics Corp.— Rev.F_09/13/17 Symmetrical biphasic waveform selector—LED is illuminated when this  function is activated. High volt waveform selector—LED is illuminated when this function is  activated. Microcurrent waveform selector—LED is illuminated when this function  is activated. Phase duration control selector—Press this button during a biphasic s...

  • Page 11: Treatment Status Indicator Icons

    Sys * Stim 294 Instruction Manual— Rev.F_09/13/17 Mains Off. Attention, consult instruction manual. Symbol for “Consult instructions for use.” Type BF Equipment—Class I Not suitable for use in the presence of a flammable anaesthetic mixture IPX0 with air or with oxygen or nitrous oxide. CE Mark 2.2 Treatment Status Indicator Icons Stimulation selected, waiting for waveform type to be selected.

  • Page 12: List Of Abbreviations

    Mettler Electronics Corp.— Rev.F_09/13/17 Microcurrent waveform selected. Display will move to the right when the outputs are active. 2.3 List of Abbreviations — Hertz (pulses per second) — Light Emitting Diode — Microampere (1 x 10 ampere) A — Microsecond (1 x 10 second) s...

  • Page 13: Installation

    7. Once you have verified proper functioning of your Sys * Stim 294, using the instructions in Section 4, please fill in the enclosed self–addressed Warranty Registration Card and mail it to Mettler Electronics. Mains Power Switch Line Cord Connection Figure 3.1—...

  • Page 14: Emc Guidance

    Mettler Electronics Corp.— Rev.F_09/13/17 Electrode Cable Connections Figure 3.2— Sys * Stim 294, Front View— Electrode Cable Connections 3.2 EMC Guidance CAUTION: Medical Electrical Equipment needs special precautions regarding Electromagnetic Compatibility (EMC) and needs to be installed and put into service according to the EMC information provided in the following tables.
  • Page 15 Sys * Stim 294 Instruction Manual— Rev.F_09/13/17 Guidance and manufacturer’s declaration – electromagnetic immunity The Sys * Stim 294 is intended for use in the electromagnetic environment specified below. The customer or the user of the Sys * Stim 294 should assure that it is used in such an environment. Immunity test IEC 60601 Compliance level...
  • Page 16 Mettler Electronics Corp.— Rev.F_09/13/17 Guidance and manufacturer’s declaration – electromagnetic immunity The Sys * Stim 294 is intended for use in the electromagnetic environment specified below. The customer or the user of the Sys * Stim 294 should assure that it is used in such an environment.
  • Page 17 Sys * Stim 294 Instruction Manual— Rev.F_09/13/17 Recommended separation distances between portable and mobile RF communications equipment and the Sys * Stim 294 The Sys * Stim 294 is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled.
  • Page 18 Mettler Electronics Corp.— Rev.F_09/13/17...

  • Page 19: Operating Instructions

    Worn cables and/or poor pads (or the wrong sized pads) can have a significant impact upon treatment results. 2. For best performance, use Mettler Electronics’ brand electrodes. 3. Do not exceed the number of recommended uses listed on the instructions for EZ Trodes or other reusable self–adhesive electrodes.

  • Page 20: General Operating Instructions

    Review precautions, contraindications and side effects/adverse reactions listed in Section 5. b) Use Mettler Electronics electrodes to ensure safe and effective operation. c) Verify connection of the line cord to a grounded wall receptacle and the Sys * Stim 294.

  • Page 21: Stimulation Set-Up Procedure

    Sys * Stim 294 Instruction Manual— Rev.F_09/13/17 4.3 Stimulation Set-up Procedure 1. Press the stimulation treatment selector. The Treatment Status Indicator will show you the stimulation icon and all the waveform LED’s will begin to blink. Press this key to begin programming additional treatment sessions.
  • Page 22 Mettler Electronics Corp.— Rev.F_09/13/17 Premodulated— 1 - 15 Hz 80 - 150 Hz Choose from preset frequency modulation programs: 1-15, 1 - 150 Hz 80-150 or 1-150 Hz or… Hz - Hz Pick Hz to set your own static frequency or frequency sweep range.
  • Page 23 Sys * Stim 294 Instruction Manual— Rev.F_09/13/17 Interferential—Continuous Premodulated—Continuous, Surge and Reciprocation Medium Frequency, Russian—Continuous, Surge and Reciprocation Biphasic—Continuous, Surge and Reciprocation High Volt—Continuous and Surge Microcurrent—Continuous Surge Mode— Press Surge selector until you see the On/Off duty cycle that 1 0 1 0 you would like to use.
  • Page 24 Mettler Electronics Corp.— Rev.F_09/13/17 8. Press the start key to begin treatment. The waveform will start to move in the treatment status box and the output display will show 0’s. Please Note: If you are using the pencil electrode with the microcurrent waveform, you must press the button on top of the pencil electrode to establish contact prior to starting a treatment or a contact error will occur.

  • Page 25: Electrode Positioning

    Sys * Stim 294 Instruction Manual— Rev.F_09/13/17 4.4 Electrode Positioning 1. General information Placement of electrodes may be by the quadpolar, bipolar or monopolar techniques. Proper positioning and contact will insure treatment comfort and efficiency. Electrodes should never be placed in such a manner as to produce current flow through the cardiac area.

  • Page 26: Bipolar Electrode Placement Technique

    Mettler Electronics Corp.— Rev.F_09/13/17 4. Bipolar electrode placement techniques Bipolar electrode placement techniques should be used to provide stimulation to larger muscle groups, such as the quadriceps or the hamstrings. The symmetrical waveforms of the “Premodulated”, “Medium Frequency” and “Biphasic” waveforms are Figure 4.4—Bipolar Electrode...

  • Page 27: Using The Pencil Electrode

    7. Additional information about electrode placement: Motor point charts are available as guides from Mettler Electronics Corp. These points may vary from patient to patient, and at time of injury, may vary in the same patient. The Electrical Stimulation &...
  • Page 28 Mettler Electronics Corp.— Rev.F_09/13/17...

  • Page 29: Indications, Contraindications, Precautions And Adverse

    Sys * Stim 294 Instruction Manual— Rev.F_09/13/17 Section 5—Indications, Contraindications, Precautions and Adverse Reactions 5.1 Indications for Neuromuscular Electrical Stimulation The application of pulsating electric currents to the body via electrodes elicits responses from nerves, which conduct pain sensation and muscle contraction information. Stimulation of sensory fibers will help block pain while the stimulation of motor fibers will generate pulsatile contractions of the muscle groups innervated by the nerves being stimulated.

  • Page 30: Warnings For Neuromuscular Electrical Stimulation

    Mettler Electronics Corp.— Rev.F_09/13/17 Patients with arterial or venous thrombosis, or thrombophlebitis are at risk of developing embolisms when electrical stimulation is applied over or adjacent to the vessels containing the thrombus. If a patient has a history of deep vein thrombosis, even many years past, the affected area should not be stimulated.

  • Page 31: Side Effects/Adverse Reactions For Neuromuscular Electrical

    Sys * Stim 294 Instruction Manual— Rev.F_09/13/17 It is advisable to insulate patients, preferably by use of a wooden treatment table or one that is completely padded by non–conductive material. Added safety is provided if the patient cannot touch any grounded metal parts. Limit treatment intensity to 50 mA (50 V) or less, when using small electrodes (2"...
  • Page 32 Mettler Electronics Corp.— Rev.F_09/13/17...

  • Page 33: Maintenance And Troubleshooting

    Sys * Stim 294 Instruction Manual— Rev.F_09/13/17 Section 6—Maintenance and Troubleshooting 6.1 Cleaning the Sys * Stim 294 The Sys * Stim 294 can be wiped off with a damp cloth. The power cord should be disconnected from the unit before this is done. In the case of stubborn dirt a gentle household cleaner can be sprayed on the cloth and then wiped on the unit.
  • Page 34 Mettler Electronics Corp.— Rev.F_09/13/17 If E7 occurs when the output is first being adjusted, it may mean the electrodes or cables are not making a good circuit. Check cable and electrode connections and make sure electrodes are making good contact with the patient.

  • Page 35: References

    Sys * Stim 294 Instruction Manual— Rev.F_09/13/17 Section 7—References 1. Baker, L.L., Bowman, B.R., and McNeal, D.R.: “Effects of Waveform on Comfort During Neuromuscular Electrical Stimulation”, Clinical Orthopedics and Related Research, No. 233, pp. 75–85, August, 1988. 2. Belcher, J.: "Interferential Therapy", N.Z. Journal of Physiotherapy, 6:29-34, 1974. 3.
  • Page 36 Mettler Electronics Corp.— Rev.F_09/13/17 18. Jaskoviak, P.A. and Schafer, R.C.: Applied Physiotherapy – Practical Clinical Applications with Emphasis on the Management of Pain and Related Syndromes, Associated Chiropractic Academic Press (A.C.A.), 1986. 19. Jorgenson, S. P. "Interferential Therapy", ACA Journal of Chiropractic, 23:12, 28-30, 1986.

  • Page 37: Specifications

    Sys * Stim 294 Instruction Manual— Rev.F_09/13/17 Section 8—Specifications 8.1 General Specifications: Input: 90–240 VAC, 50–60 Hz, 2.3 Amp Nom. Weight: 9.4 pounds Dimensions: 5 in (H) x 14.5 in (W) x 10 in (D) Operating Temperature: +50°F to +104°F Humidity: Operating, 30% to 75% Relative Humidity at 104F Nonoperating, 5 to 95% Relative Humidity, non-...

  • Page 38: Premodulated Waveform

    Mettler Electronics Corp.— Rev.F_09/13/17 Phase Duration: 125 s Available Amplitude Modulation Options: Vector rotation Available Channels: Channel pairs 1 & 2 or 3 &4 Premodulated Mode Waveform Type: Amplitude modulated sine wave Polarity: None Volts: 0–50 volts RMS, 1 Kohm load Current: 0–50 mA RMS,...

  • Page 39: Medium Frequency (Russian) Waveform

    Sys * Stim 294 Instruction Manual— Rev.F_09/13/17 Medium Frequency Mode Waveform Type: Burst modulated sine wave Polarity: None Volts: 0–50 volts RMS, 1 Kohm load Current: 0–50 mA RMS, 1 Kohm load Average current at maximum intensity and frequency: 50 mA RMS Figure 8.3—Medium Frequency Maximum current (Russian) Waveform...

  • Page 40: High Volt Waveform

    Mettler Electronics Corp.— Rev.F_09/13/17 High Volt Mode Waveform Type: Monophasic twin peak Polarity: Positive or negative 500 volts 8 us Volts: 500 volts peak, 1 Kohm load Current: 0 –500 mA peak, 50 % 1 Kohm load Average current at...

  • Page 41: Amplitude Modulation Specifications

    Sys * Stim 294 Instruction Manual— Rev.F_09/13/17 8.3 Amplitude Modulation Specifications: Vector rotation: Interferential Mode Only, -50% amplitude modulation in anti phase with an eight second modulation period. Surge Mode: Premodulated, Medium Frequency, High Volt and Biphasic Pulsed Modes Up ramp: 3 seconds Down ramp: 2 seconds...
  • Page 42 Mettler Electronics Corp.— Rev.F_09/13/17...

  • Page 43: Accessories

    (800) 854–9305 or phone (714) 533–2221 in areas outside the continental United States. Ask for Customer Service. Mettler Electronics is open from 7 AM until 5 PM Pacific Time for your convenience. The email address for Customer Service is mail@mettlerelectronics.com.
  • Page 44 Mettler Electronics Corp.— Rev.F_09/13/17 2702 V Trode –2" diameter round electrodes with lead wires, case of ten packages (four electrodes/pkg.) 2703 V Trode –2.75" diameter round electrodes with lead wires, case of 10 packages (four electrodes/pkg.) 2704 V Trode –2" x 4" oval electrodes with lead wires, case of 10 packages (four electrodes/pkg.)

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