natus Grass S88X, User & Service Manual

Page: 48 / 64

7-48
Chapter 7
Operation
Using two SIUV units (Biphasic Constant Voltage)
Connect one SIU-V to the S1 Output and a second SIU-V to the S2 Output.
Select the SIU-V in the
CHOOSE STIMULUS ISOLATION UNIT setup screen for both
S1 and S2. Select Monophasic (MO) for the Pulses selection. Select the Sync
with S1(SS) S2 Function and use the S2 Delay to separate the pulses.
Connect the output terminals of the two SIU-Vs in series and reverse
polarity on one SIU-V. (See
Siu-v u
SerS
m
anual
, c
hapter
5, c
onnectionS for
m
ixinG the
S88x o
utputS
.) The S88X Delay circuit is used to separate the two
pulses.
Using two PSIU6X units ( Biphasic Constant Current)
Connect one PSIU6X to the S1 output and a second PSIU6X to the S2
output. Select the PSIU6X in the
CHOOSE STIMULUS ISOLATION UNIT setup screen
for both S1 and S2. Select Monophasic (MO) for the Pulses selection. Select the
Sync with S1 (SS) S2 function and use the S2 Delay to separate the pulses.
Connect the output terminals of the PSIU6X units in parallezl and reverse
polarity of one of the PSIU6X.
Using two SIU-C units (Biphasic Constant Current)
Connect one SIU-C to the S1 output and a second SIU-C to the S2 output.
Select the SIU-C in the
CHOOSE STIMULUS ISOLATION UNIT setup screen for both
S1 and S2. Select Monophasic (MO) for the pulses selection. Select the Sync
with S1 (SS) S2 function and use the S2 Delay to separate the pulses.
Connect the output terminals of the SIU-C units in parallel and reverse the
polarity of one of the SIU-C units.
See separate user manuals for the Stimulus Isolation Units for more
additional information.
m
OnOphaSic
p
ulSe
m
ODe
This mode produces single pulses from 0 to +12 volts. They are used for
stimulation when neither Twin Pulses or Biphasic Pulses are required.