Quick reference sheet
1.
Serial number breakdown:
2.
Oven sensor resistance chart:
3.
Element resistance
N F 1 2 3 1 8 4 7 5
Production week
Last digit of production year
Product identification
Manufacturing Facility
RTD
Temperature Degrees F.
32 +/- 1.9
75 +/- 2.5
250 +/- 4.4
350 +/- 5.4
450 +/- 6.9
550 +/- 8.2
650 +/- 9.6
900 +/- 13.6
The wattage rating is stamped on the element. To deter-
mine the resistance divide the wattage by the voltage
rating on the element (either 250 or 120) to obtain the
amperage. Then divide the amperage into the voltage
rating to obtain the resistance. If for some reason you
cannot find the wattage rating, as a general rule most
element's resistance will be between 15 and 45 Ohms.
10
Incremented unit number
SCALE
Resistance (Ohms)
1000 +/- 4.0
1091 +/- 5.3
1453 +/- 8.9
1654 +/- 10.8
1852 +/- 13.5
2047 +/- 15.8
2237 +/- 18.5
2697 +/- 24.4