Standard Marking System | Calibration & Tolerance

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Portage Electric Products, INC. (PEPI)
Standard Marking System

Portage Electric Products Standard Marking System lets you universally identify the information you need to know for our thermal controls. The Standard Marking System provides important information for the manufacturing location, the week and year of calibration, termination options, the nominal calibration temperature, and the calibration tolerance. We want to continually serve as a resource for all the information you want to know.

As Portage Electric has manufacturing facilities around the world, the Standard Marking System has been revised to include a Location Code to provide information as to where your thermal controls were manufactured and what location any termination options were performed. Due to Pepi consolidating manufacturing assets, the location where the thermal controls were manufactured and the location where optimal lead termination is applied may vary. Please see the included table which provides for all possible scenarios.

Character Position	Explanation
1	Alpha Character designating manufacturing location(s) – See Table 1
2	Blank space
3 & 4	Numeric Characters designating week of calibration – Calendar weeks 1 through 52
5	Alpha Character designating year of calibration ( A = 2009 through Z = 2034)
6	Termination Code designating with factory applied leads (+) or without factory applied leads (–)
7, 8, & 9	Numeric Characters designating the nominal calibration temperature (in degrees Centigrade)
10	Alpha Character designating the calibration tolerance (in degrees Centrigrade) – See Table 2

Table 1
Location Code	Manufacturing Location	Termination Location
A	USA	USA
B	USA	Mexico
C	USA	China
D	Mexico	USA
E	Mexico	Mexico
F	Mexico	China
G	China	USA
H	China	Mexico
I	China	China

Table 2
Code	Tolerance
A	± 10° C
B	± 9° C
C	± 8° C
D	± 7° C
E	± 6° C
F	± 5° C
G	± 4° C
H	± 3° C

Download the Pepi Standard Marking System PDF