Valleylab Force EZ Electrosurgical Generator

Physical

• Height: 5 inches (12.7 cm)
• Width: 16 inches (40.6 cm)
• Length: 15.6 inches (39.5 cm)
• Weight: < 15 lbs (6.8 kg)

Output Waveforms

• Bipolar: 470 kHz sinusoid
• Monopolar Cut — Pure: 393 kHz sinusoid
• Monopolar Cut — Blend: 393 kHz bursts of sinusoid recurring at 27 kHz intervals, 50% duty cycle envelope

Monopolar Coagulation

• Desiccation Low 1: 240 ± 40 kHz sinusoid recurring at 39 kHz, 8% duty cycle
• Desiccation Low 2: 393 kHz sinusoid
• Desiccation Low 3: 393 kHz sinusoid
• Fulguration High 1: 470 ± 40 kHz damped sinusoidal bursts, repetition frequency 57 kHz
• Fulguration High 2: 470 ± 40 kHz damped sinusoidal bursts, repetition frequency 30 kHz

Output Characteristics

• Bipolar (Standard Mode) — Maximum P-P Voltage: 300; Rated Load: 100 Ω; Maximum Power: 70 W; Crest Factor (Typical): 1.5
• Monopolar Cut (Pure) — Maximum P-P Voltage: 2000; Rated Load: 300 Ω; Maximum Power: 300 W; Crest Factor (Typical): 1.5
• Monopolar Cut (Blend) — Maximum P-P Voltage: 3400; Rated Load: 300 Ω; Maximum Power: 200 W; Crest Factor (Typical): 2.1
• Monopolar Coag Desiccate Low 1 — Maximum P-P Voltage: 3500; Rated Load: 500 Ω; Maximum Power: 120 W; Crest Factor (Typical): 5.0
• Monopolar Coag Desiccate Low 2 — Maximum P-P Voltage: 660; Rated Load: 300 Ω; Maximum Power: 120 W; Crest Factor (Typical): 1.5
• Monopolar Coag Desiccate Low 3 — Maximum P-P Voltage: 1100; Rated Load: 300 Ω; Maximum Power: 120 W; Crest Factor (Typical): 1.5
• Monopolar Coag Fulgurate High 1 — Maximum P-P Voltage: 6200; Rated Load: 500 Ω; Maximum Power: 120 W; Crest Factor (Typical): 5.0
• Monopolar Coag Fulgurate High 2 — Maximum P-P Voltage: 8500; Rated Load: 500 Ω; Maximum Power: 120 W; Crest Factor (Typical): 7.0

Performance

• Power Efficiency Rating (PER): 97
• Output power variation: Changes by less than 15% or 5 watts (whichever is greater) as line voltage varies from 90–135 V into a 300 Ω load

Leakage and Safety

• Low Frequency Leakage (50–60 Hz) — Normal polarity, intact chassis ground: < 10 µA; Normal polarity, ground open: < 50 µA; Reverse polarity, ground open: < 50 µA; Sink current, 140 V applied, all inputs: < 50 µA
• High Frequency Leakage — Bipolar: < 60 mArms; Monopolar: < 150 mArms

REM Contact Quality Monitoring

• Measurement Frequency: 80 kHz ± 10 kHz
• Measurement Current: < 10 µA
• Acceptable Resistance Ranges: REM pad 5–135 Ω; Non-REM pad < 20 Ω
• Adaptive REM Trip: Baseline impedance plus 40%

Input Power Requirements

• 110–120 Vac Operating Range: 85–140 Vac; Max Current Cut: 8 A; Max Current Coag: 4.2 A
• 220–240 Vac Operating Range: 170–280 Vac; Max Current Cut: 4 A; Max Current Coag: 2.1 A

Compatibility

• Compatible Devices: Force Argon II, Force GSU argon coagulation system, OptiMumm smoke evacuator