PASCO TD-8513 Heat Conduction Apparatus - Manual (Page 4)

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H e a t C o n d u c t i o n A p p a r a t u s C o n n e c t i o n s
4
The Heat/Cool switch changes the polarity of the voltage applied to the Peltier device
so that the lower surface of the device either heats or cools the bars. When the switch
is set to Cool, the device pumps heat from the lower surface to the upper surface; the
heat sink helps to dissipate this heat.
Connections
Use the included cable to connect the temperature port of the Heat Conduction Appa-
ratus to the multiport of a PS-2157 Temperature Array. Connect the Temperature
Array to a PASPORT interface. Connect the interface to a computer and start
DataStudio.
1
Connect a PI-9877 DC Power Supply (or similar) to the power input ports of the
apparatus with the positive terminal of the power supply connected to the red input
port, and the negative terminal connected to the black input port. Set the voltage to
zero.
Safety
The Peltier device and metal bars can be hot. Do not touch them while the appa-
ratus is in use. When applying power to the device, always monitor the temper-
atures and do not allow them to exceed 80 °C. After use, do not leave the apparatus
unattended until all parts have cooled.
Do not apply more than 15 V or 2 A to the apparatus.
Specifications
Material Properties
1
If your PASPORT inter-
face is an Xplorer GLX,
you can use it without a
computer or DataStudio.
Aluminum, stainless steel, and wide brass bar
dimensions 9 Ч 1.2 Ч 0.4 cm
Narrow brass bar dimensions 9 Ч 0.7 Ч 0.4 cm
Maximum input voltage 15 VDC
Thermistors Eight embedded 10 k
Ω
thermistors
Brass (360 Alloy) Aluminum (6063-T5) Stainless Steel (304)
Density ρ (kg/m 3 ) 8520 2800 8000
Specific Heat c (J/kg·K) 385 830 400
Conductivity k (W/m·K) 115 150 14