0330-0410-0M Rev D
•
Portable Digital Truck Scale
109
COMMUNICATIONS ERROR BETWEEN INDICATOR AND SCALE, Cont.
SOLUTION:
H. If a NEST is not available, proceed with the following instructions to check the Homerun
cable for shorts:
1. Disconnect the Homerun cable from the load cell (Start Node).
2. Starting with one wire, check the resistance between it and each of the other wires
one at a time. With a DVM this should always read “OL” to indicate there is no
current flow between that pair of wires.
3. After checking the first wire take the next wire and check it for shorts to the
remaining three wires.
4. Continue this procedure until all wires are tested for shorts to all other wires.
I. If the Homerun cable, 225DLC (825-DLC) and 225D (825D) check good with the
simulator, we need to test each load cell in the loop by starting with the first load cell.
Go to the Scale Setup screen, and enter “1 Loadcell” to select that cell, assign it to
scale one, and enter the ID for the load cell you are connected to. Press ENTER. The
225D (825D) should display CELL RESPONDED, indicating that the load cell is
communicating and good. If NO CELL RESPONSE is displayed, return to the
Calibration screen, and perform a
ZERO CAL
. Return to the Weight screen, and cycle
power (turn off, then back on) to save the settings. If the 225D (825D) displays weight,
zero the indicator, then stand on the deck over the load cell to confirm operation. If the
load cell fails to respond, replace the load cell.
J. Next, connect the next load cell in the loop. Go to the Scale Setup screen, and enter
“Number of Cells 2”. Enter the ID for the second load cell. Press ENTER. The 225D
(825D) should display CELL RESPONDED, indicating that the second load cell is
communicating and good. If NO CELL RESPONSE is displayed, return to the
Calibration screen, and perform a
ZERO CAL
. Return to the Weight screen, and cycle
power (turn off, then back on) to save the settings. If the 225D (825D) displays weight,
zero the indicator, then stand on the deck over the second load cell to confirm
operation. If the load cell fails to respond, replace the load cell.
K. Continue adding load cells one at a time until you have a load cell that will not
communicate. When that occurs, first replace the cable connecting the last good load
cell to the load cell you are testing, to see if a different cable resolves the failure. If it
does, proceed to the next load cell to test. If a different cable does not correct the
failure, place a new load cell in the current position and input that load cell ID, and see if
it responds. If the new load cell does not respond, place the new load cell in the
previous position to see if it will communicate through it.
L. Continue this process until all load cells are working and making weight. After all load
cells are communicating and making weight, go back into the Load Cell Setup and enter
the load cell IDs in their correct scale position. Cycle power (turn off, then back on) to
save the settings, perform a
ZERO CAL
, and then verify calibration.
Summary of Contents for ARMOR
Page 2: ...0330 0410 0M Rev D Portable Digital Truck Scale 2...
Page 4: ...0330 0410 0M Rev D Portable Digital Truck Scale II...
Page 8: ...0330 0410 0M Rev D Portable Digital Truck Scale VI...
Page 14: ...0330 0410 0M Rev D Portable Digital Truck Scale 6 Scale Site Cont...
Page 126: ...0330 0410 0M Rev D Portable Digital Truck Scale 118 PARTS IDENTIFICATION...
Page 133: ...0330 0410 0M Rev D Portable Digital Truck Scale 125 Decal and Name Plate Mounting View Detail...
