NeuroTrac Obstetric TENS Machine

Description

• Dual channel: individually isolated circuits.
• Amplitude: 0-90 mA into 500 Ohm load ; indication only. Actual mA will tend to be less than indicated due to electrode impedance: at 1000 Ohms load (Electrodes in poor condition) the maximum will be limited to 70 mA, at 1500 Ohms load the maximum will be limited to 65 mA.
• Type: Constant Current, maximum output voltage 180 Volts +10 / -30 Volts.
• Waveform: Asymmetrical, rectangular bi-phasic with zero DC current.
• Pulse width: 220μS [2% accuracy].
• Pulse Rate: 90Hz (Continuous mode) [2% accuracy].
• Mode: Continuous (Boost mode).
• Burst mode: Bursts of 9 pulses [200 μS] at 150 Hz, repeating twice every second (Rest mode).
• Ramp up Time: 0.8 seconds from Rest to Boost.
• Time duration: continuous until switched off.
• Low Battery Indicator: If the battery goes below 6.9 volts +/- 0.2 volts the battery symbol will flash on/off once every second.
• If the battery voltage is below 6.6 (+/- 0.2) volts the unit will not turn on.
• Open Electrode Detect: If an open circuit is detected at the output of channel A or B the output current will be reset at zero.