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Thermal Arc had four different serial number schemes. You can tell the age of your power supply by using one of the schemes below.
Format 1: Format one uses the first two characters of the serial number.
Example: Unit serial number N6123456A188801F
N = Month of the year manufactured
6 = Year manufactured / 1996
Month of year manufactured is determined by using the following legend.
T = January
H = February
E = March
R = April
M = May
A = June
L = July
D = August
Y = September
N = October
C = November
O = December
The above unit was manufactured in October 1996.
Format 2: Format two is primarily used on Plasma Welding Torches.
Example 2: Torch serial number 7Rxxxxxx
The above torch was manufactured in April 1997
Format 3: Format three uses the first three characters of the serial number.
Example 3: Unit Serial Number 199PS12345
1 = 1st quarter of the year. 2 would equal the 2nd quarter of the year, etc.
99 = Year of manufacturer / 1999.
Format 4: Format four uses the first 6 number of the serial number.
Example 4: Unit Serial Number T991012010231
99 = Year of manufacturing. 98 = 1998, 99 would equal 1999.
10 = Month of year. 01 = January 02 = February, 03 March, etc.
12 = Day of the Month. 01 = 1st day of the month, 02 = 2nd day of the month, etc.
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