Chattanooga Primera - Specifications

Chattanooga
™
Primera Operation Manual
28
TENS and STIM(NMES)
1. Dual channel: individually isolated circuits.
2. Amplitude: 0-80 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.
3. Type: Constant Current, maximum output voltage 180 Volts +10 / -30
Volts.
4. Waveform: Asymmetrical, rectangular bi-phasic with zero DC current.
5. Selectable pulse width: 100 µS - 250 µS [2% accuracy].
6. Pulse Rate selection: in the continuous mode 2 – 150 Hz [2% accuracy].
7. Mode: Continuous, Burst , Modulated or HAN-Modulated.
8. Burst mode: Bursts of 9 pulses [175 µS or 200 µS] at 150 Hz, over
2 seconds.
9. Modulation mode: 6-second cycle of concurrent width modulation and
pulse repetition rate modulation.
TENS 6: Width starting at 200 µS and decreasing exponentially to
100µS in three seconds and then returning back to 200 µS in the next
three seconds. Rate starting 100 Hz, decreasing exponentially to 65 Hz
and then returning to 100 Hz.
TENS 7: Width starting at 200 µS and decreasing exponentially to
100µS in three seconds and then returning back to 200 µS in the next
three seconds.Rate starting 65 Hz, increasing exponentially to 100 Hz
over 3 seconds and then returning to 62 Hz in the next 3 seconds.
10. Han mode - variation of Modulated: a sequence of alternating Low
frequency stimulation ( 2Hz, 260 µS) and High frequency stimulation
( 70Hz, 150 µS) each lasting 3 seconds.
11. Battery: PP3 Alkaline, 9V.
Expected average battery life [of standard 800 mAh, alkaline]: 24 h.
12. Low Battery Indicator: If the battery goes below 6.9 volts +/- 0.2
volts the battery symbol will ash on/off once every second.
13. If the battery voltage is below 6.6(+/-0.2) volts the unit will not turn on.
14. 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.
Expected service life:
5 years. Careful use and maintenance extends the life of the unit over the
service life limit.
Physical dimensions: 108 x 65 x 23 mm
Weight: 70g without battery, 100g with battery.
Environmental Conditions for use:
+5 to +40 degrees Centigrade. 15-93% Humidity.
Environmental conditions for storage & transport:
-25 to +70 degrees Centigrade. 0-90% Humidity.
Specications