英国Digitimer高压恒流电刺激仪

作为神经刺激器或肌肉刺激器，DS7A提供高达100mA的持续时间短的恒定电流高压脉冲，用于神经和肌肉组织电活动的经皮刺激。输出电流在0至100mA范围内连续可变。


 



Selected by 10 turn dial and x1 / x10 switch
Dial reading 0.00 to 9.99 (00.0 to 99.9)
giving 0 to 9.99mA for x1 setting (0 to 99.9mA for x1)
and 0 to 99.9mA for x10 setting (0 to 999mA for x10)
50, 100, 200, 500, 1000, 2000µs (50, 100, 200µs only)
Pulse Polarity (NEW) Three position toggle switch - +ve, -ve and alternating polarity options
Continuously variable from 100V to 400V
On is up
Off disables output and open circuit terminals. Fault trip is also reset
4mm shrouded, touchproof sockets (red and black) on 3/4" centres
The DS7A/DS7AH is internally protected to limit the output energy 
(Duration x Current x Repetition). A separate sheet is available 
showing these limits
Electrical via BNC socket on rear panel:
Triggers at +3V on positive edge
Maximum input = ± 15V
Minimum pulse duration= 5 microsecond
Maximum repetition rate= 1000pps (100pps in alternating polarity mode)
Front panel:
Push button
Rear panel via 1/4" mono jack socket:
Foot switch (contact closure)
Rear panel BNC, positive TTL pulse 1 millisecond wide
(can be factory set for negative polarity)
LED - Amber, flashes for each trigger received
LED - Amber, lit when selected current not delivered
LED - Red, illuminated and latched for sensed over current and at power on
LED - Green, illuminated for power on
Too Fast (NEW) LED - Amber, illuminated if trigger frequency exceeds 100pps
(Alternating Polarity mode only).
Polarity (NEW) 2x LED - Green, each illuminated to indicate the polarity of the next stimulus.
100-120V or 200-240V (externally selected), 47-63 Hz, 12VA
Class 1 with Type BF applied part
IEC601-1
225 x 100 x 255mm (w x h x d)
3kg (approx.)
 
 

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