BIOPAC Systems Epoch - Four-Channel 2-Week Electrode Spacing

Page 7 of 23 BIOPAC Systems, Inc.
10166_Rev08 WWW.BIOPAC.COM 9.09.2019
The output gain of the sensor is set at 2000x during production (±1.0 mV range), but can be set to the
following gains depending on customer needs: 800x (Status-Epilepticus in adult animals), 2000x (EEG,
ECoG, LFP), or 4000x (Pup EEG). A Sensor Activator and Tester must be used to activate sensors on-site.
Technical details of the Four-Channel and Six-Channel sensors are as follows:
Channels: 4 or 6
Reference: Common
Electrodes: 5 or 7
Weight: 0.5 g (2-wk), 2.3 g (2 mo), 4.0 g (6 mo)
Volume: 0.76 cm
3
(2 mo), 1.35 cm
3
(6 mo)
System Gain Options: 800x -- (±2.5 mV range, 2.5 mV in = 2 V out)
2000x -- (±1.0 mV range, 1.0 mV in = 2 V out)
4000x (four-channel only) – (0.5 mV range, 500 µV in = 2 V out)
Bandwidth: 0.1 – 60 Hz per channel
Input Referred Noise: < 7.0 μV rms
Four-Channel 2-Week Electrode Spacing
Figure 8.Four-Channel 2-Week sensor electrode spacing schematic looking down
at animal’s head. The electrodes go through the page.
Standard Dimensions (Four-Channel 2-Week sensor only):
A – 1 mm
B – 2 mm
C – 4 mm
D – 1.8 mm
E – 2.5 mm
F – 6 mm
G – 2 mm
H – 1.5 mm