NEUROTHERM RADIO FREQUENCY LESION GENERATOR
3-2
MODEL NT1100
®
OPERATORS MANUAL
Document 109.00
10September2012 Issue 06
IMPEDANCE
Measuring Frequency
53 KHz (± 3KHz)
Measuring Source Voltage
Less than 500 mV AC
Measurement Display
50-2000 ohms (one ohm resolution)
Accuracy
± 5%
Features
(a)
Internal 500 ohm Test Resistor
(b)
Impedance in all Lesion Modes and in Stimulation
Mode when stimulation is off
(c)
Audible Tone available where frequency varies
with impedance over full impedance range (50-
2000 ohms). Audible tone is adjustable and
mutable
(d)
Warning on screen if impedance is less than 50
ohms or greater than 2000 ohms
STIMULATION MODE
Signal Shape
Biphasic square wave with negative edge leading. This
wave is available in a variety of frequencies and widths.
Output Range
Voltage
0-5v ± 3% for motor frequencies (2Hz and 5 Hz)
0-3v ± 5% (Default) for all other frequencies
0-0.5v ± 10% for all other frequencies
Current
0-10mA ± 5% 50-2000 ohms
0-6mA ± 5% 50-2000 ohms
0-1mA ± 5% 50-2000 ohms
Pulse Rates
Motor
2 or 5 Hz (Default 2Hz)
Sensory 10, 20, 50, 75, 100, 150, 180, 200 Hz (Default 50 Hz)
Pulse Rate Accuracy
± 3%
Pulse Widths
0.1, 0.2, 0.5 and 1.0 mS (Default 1.0 mS)
Pulse width Accuracy
± 5% for 0.2, 0.5 and 1.0 mS
± 15 % for 0.1 mS