 |
The
Model SCA1 is an accessory unit designed to record skin conductance.
It provides an isolated constant DC voltage to the recording electrodes.
The SCA1 directly interfaces with Grass Amplifiers.
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| FEATURES
& BENEFITS |
| •
|
The
SCA1 provides calibrated values of conductance units in micromhos
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| •
|
Combined
with the amplifier sensitivity controls, a wide range of conductance
values can be recorded |
| •
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To
facilitate calibration, "dummy" conductance values of
2, 5, 10 and 20 micromhos can be selected |
•
|
Pushbuttons
of 1 and 5 micromhos are included for calibration checks
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| SPECIFICATIONS |
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Electrode Voltage |
|
Set
for 0.5 volts Adjustable from 0.2 to 0.55 VDC from isolated voltage
source Batteries not required |
Sensitivity
(with 7P1/7P122) |
|
0.1 to 200 micromhos/cm |
| Calibration |
|
Switch
selectable: 2, 5, 10 and 20 micromhos
Pushbuttons: 1 and 5 micromhos |
| Balancing
|
|
Balancing
via Model 7P1/7P122/P122 BALANCE VOLTAGE control 1 mV/turn = 10 micromhos/turn
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| Installation |
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A bracket is provided to facilitate mounting on left side of the Model
7 Series Polygraph adjacent to 7P1, 7P122 and P122 Preamplifiers Brackets
are available for Grass Model 8, 9, 12 and 15 instruments |
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Cabling
|
|
Integral
cables for connection to Amplifier 16-foot (4.8m) cable to subject |
| Physical
Size |
|
4.5"
L x 2.75" W x 1.25" D
(11.4 cm x 7 cm x 3.1 cm) |
| Weight
|
|
1
lb. 6 ozs. (0.62 kg) |
| ORDERING
INFORMATION |
| Model
SCA1 |
|
Skin
Conductance Adaptor |
| Model
SCA1/T9 |
|
Skin
Conductance Adaptor and 1-foot (0.3 m) shielded cable for connection
to Model LP122 Amplifier |
| Model
TAC-9 |
|
Transducer
cable, 1-foot length (0.3 m) for connection to: Model LP122 Amplifier |
| Model
F-EGSR |
|
Finger
Electrode for GSR/SCL Ag/AgCl electrode mounted in plastic holder
conforms to the curvature of fingers. Velcro strap provided, 6-foot
wire length (1.8 m). Used for skin resistance and conductance recordings.
Sold as pair only. Can be chemically disinfected. |
| Model
EC33 |
|
Skin
Resistance/Conductance Electrode Paste, 4 oz. tubes |
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