PASCO TD-8555, Instruction Sheet

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012-02889D
2
Limited Warranty
PASCO scientific warrants this product to be free from defects in
materials and workmanship for a period of one year from the date
of shipment to the customer. PASCO will repair or replace, at its
option, any part of the product which is deemed to be defective in
material or workmanship. This warranty does not cover damage to
the product caused by abuse or improper use. Determination of
whether a product failure is the result of a manufacturing defect or
improper use by the customer shall be made solely by PASCO
scientific. Responsibility for the return of equipment for warranty
repair belongs to the customer. Equipment must be properly
packed to prevent damage and shipped postage or freight prepaid.
(Damage caused by improper packing of the equipment for return
shipment will not be covered by the warranty.) Shipping costs for
returning the equipment, after repair, will be paid by PASCO
scientific.
Important: The voltage into the lamp should
NEVER exceed 13 V. Higher voltages will burn
out the filament.
Replacement Bulb: Use GE Lamp No. 1196,
available at most auto parts stores. When replacing
the bulb, solder the leads to minimize resistance.
Note: Complete instructions for the Stefan-
Boltzmann and inverse square law experiments can
be found in the Instruction Manual and Experiment
Guide for the PASCO scientific Thermal Radiation
System (PASCO Part NO. 012-02845).
Resistivity
µΩ
cm
Resistivity
µΩ
cm
Resistivity
µΩ
cm
0 500 1000 1500 2000 2500 3000 3500
Temperature and Resistivity for Tungsten
Temperature versus Resistivity for Tungsten
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
R
T
R
300K
20
Temperature (Kelvin)
Relative
Resistivity
1.0
1.43
1.87
2.34
2.85
3.36
3.88
4.41
4.95 300
400
500
600
700
800
900
1000
1100
5.65
8.06
10.56
13.23
16.09
19.00
21.94
24.93
27.94 5.48
6.03
6.58
7.14
7.71
8.28
8.86
9.44
10.03
1200
1300
1400
1500
1600
1700
1800
1900
2000 30.98
34.08
37.19
40.36
43.55
46.78
50.05
53.35
56.67 10.63
11.24
11.84
12.46
13.08
13.72
14.34
14.99
15.63 2100
2200
2300
2400
2500
2600
2700
2800
2900 60.06
63.48
66.91
70.39
73.91
77.49
81.04
84.70
88.33 16.29
16.95
17.62
18.28
18.97
19.66
26.35 3000
3100
3200
3300
3400
3500
3600
103.3
107.2
111.1
115.0
92.04
95.76
99.54
Temp
°
K
R/R
300K
Resistivity
µΩ
cm
Temp
°
K
R/R
300K
Temp
°
K
R/R
300K
Temp
°
K
R/R
300K