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
µ
S - 250
µ
S [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
µ
S or 200
µ
S
] 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
µ
S and decreasing exponentially to
100
µ
S in three seconds and then returning back to 200
µ
S 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
µ
S and decreasing exponentially to
100
µ
S in three seconds and then returning back to 200
µ
S 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
µ
S
) and High frequency stimulation
( 70Hz, 150
µ
S) 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 flash 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.
Specifications
