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Graham Field grafco GF-3 - Technical Specifications; Output Specifications

Graham Field grafco GF-3
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14
TECHNICAL SPECIFICATIONS
Channel Dual, isolated between channels
Modes of Operation Burst, Continuous, and Modulation
Pulse Intensity Adjustable 0 mA – 80 mA peak into 500 ohm load each channel,
constant current
Pulse Width 30uS-260uS (adjustable)
Pulse Rate 2 Hz-150 Hz (adjustable)
Timer (GF-3T Only) Continuous, 30 minutes, and 60 minutes
Burst Mode (B) Burst consists of 2 bursts per second at 100 Hz
Wave Form Asymmetrical bi-phasic square pulse
Voltage 0 – 100 Volt (open circuit)
Power Source 9-Volt battery
Dimensions 95 mm x 65 mm x 23.5 (height x width x thickness)
Weight 115 g (including battery)
OUTPUT SPECIFICATIONS
Mode Intensity
(mA)
Pulse Width
(uSec)
Pulse Rate
Frequency (Hz)
Cycle Time
(Sec)
Burst Adj. 0-80 Adj. 30-260 100 Hz xed N/A
2 bursts per Sec
Continuous Adj. 0-80 Adj. 30-260 Adj. 2-150 Hz N/A
Modulation Adj. 0-80 Modulates down
from preset width
setting by 60%
then back to
original setting
Adj. 2-150 Hz 5 Sec total time