CHAPTER 6
93
Reconnect the lead to the load cell. Reset Tare to "0" and repeat test for that load cell.
Check the Preload Number again to see if it is within the +12,000 lb to -12,000 lb range. If the load
cell is still out of range, it may be faulty. Perform the Resistance Test, (Section 6.2.3).
If the load cell cannot be brought to Vulcan specifications, contact your Vulcan dealer.
6.2.3
RESISTANCE TEST PROCEDURE
Required Equipment: Digital Multi-Meter With Conductivity Scale
Optional Equipment:
Vulcan Check-Out Box
Please refer to drawing below in setting up the Resistance Test. The resistance in the pins should
correspond to the Vulcan specifications listed below. This test can be conducted with a multi-meter
or
a Vulcan Check-Out Box. Refer to acceptable resistance ranges as shown below.
OR
Figure 6-C: Resistance Test
Pins
Terminal
Acceptable
Color Code
Resistance Range
A to D
Red to Black
349 to 400 Ohms
B to C
Green to White
349 to 352 Ohms
Note:
For Center Hanger Load Cells, Red to Black
349 to 450 Ohms
For Air Sensors contact factory for specifications
Pin B (Green) to Pin A (Red) should be the same number as Pin B (Green) to Pin D (Black) within 1 Ohm.
Pin C (White) to Pin A (Red) should be the same number as Pin C (White) to Pin D (Black) within 1 Ohm.
If the load cell cannot be brought to Vulcan specifications, contact your Vulcan dealer.
June 21, 2006
VULCAN ON-BOARD SCALES 1-800-237-0022
Doc. 44-10032-001 Rev. C
©
STRESS-TEK, INC. 2006
