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3.2.3 Circuit testing weighing pins for WI-5000-T/WI-5000-TS
Using a multimeter
Without a working weighing computer or connection box, you will be able to test the weighing pins using a
multimeter. This method is not fully reliable. A weighing pin may pass the test but still have a problem. For the best
results we recommend you test the weighing pins using a working weighing computer.
Only Regular DB + DA weighing pins are to be used for WIFO weighing equipment. Table 3.2.4 shows the resistance
between the various cores of the weighing pin. Replace the weighing pin if the measured value exceeds the 20%
tolerance margin as in table 3.2.4
.
When using a multimeter, any defective weighing pins will usually give no reading at all, or a reading in excess of
twice the value as shown in table 3.2.4.
Weighing bar
type
Core colour
Regular DB + DA
Red & Black
350Ω
-
400 Ω
White & Green
350 Ω
Red & Green
262 Ω
Green & Black
262 Ω
-
312 Ω
Black & White
262 Ω
-
312 Ω
White & Red
262 Ω
Screening in relation to any other core
Infinite (open)
Table 3.2.4-Resistance values weighing pins
Shortened, extended or soldered weighing pin cables may result in inaccurate readings. Contact your
supplier for more information and assistance.
