Cardinal SMARTCELL User manual

0330-0653-0M Rev D • DC Load Cell Kit
1
DC Digital
Load Cell Kit
Technical Manual

0330-0653-0M Rev D • DC Load Cell Kit
2

0330-0653-0M Rev D • DC Load Cell Kit
I
TABLE OF CONTENTS
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
LOAD CELL INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
LATERAL AND LONGITUDINAL CHECKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
INSTALLING LOAD CELL CABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4
HOMERUN CABLE INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6
Maximum Homerun Cable Length Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
225D Indicator Connection . . . . . . . . ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Re-Installing the 225D Indicator Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
225DLC Controller Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10
825D Indicator Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12
Re-Installing the 825D Indicator Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
825DLC Controller Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Load Cell Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
GROUNDING INSTALLATION INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19
SETUP AND CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20
Digital Scale Setup and Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
To Begin 225D Setup and Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Addressing Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
End Nodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22
225D Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22
Smart Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Zero Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Trim Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Span Adjust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24
To Begin 825D Setup and Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
25
Login . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Setup Scale Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Setup DLC Card 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
DLC Card 1 Cell Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29
Smart Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
33
Zero Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Trim Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Span Adjust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
BALANCING WEIGHBRIDGE DEAD LOAD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
54

0330-0653-0M Rev D • DC Load Cell Kit
II
TABLE OF CONTENTS, CONT.
DIGITAL SCALE DIAGNOSTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
225D DIGITAL SCALE DIAGNOSTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
On Screen Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Diagnostic Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
60
Hardware Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
64
DETECTING 225D BOARD REPLACEMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
225DLC DIGITAL CONTROLLER CARD REPLACEMENT . . . . . . . . . . . . . . . . . . . . 66
825D DIGITAL SCALE DIAGNOSTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
On Screen Diagnostics ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
68
Diagnostic Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
72
Hardware Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
DETECTING 825D BOARD REPLACEMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
825DLC DIGITAL CONTROLLER CARD REPLACEMENT . . . . . . . . . . . . . . . . . . . . 90
TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
92
DISPLAYED ERROR MESSAGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
92
REPLACE LOAD CELL X ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
LOAD VOLTAGE DETECTED CELL X . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
CURRENT DRAW MORE THAN 150% OF CAPACITY . . . . . . . . . . . . . . . . . . 94
LOAD CELL X NOT RESPONDING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
95
COMMUNICATIONS ERROR BETWEEN INDICATOR AND SCALE . . . . . . .
95
LOAD CELL X HAS NO ADDRESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
COMMUNICATION ERROR BETWEEN LOADCELLS X AND Y . . . . . . . . . . . 97
SCALE WILL NOT RETURN TO ZERO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
SCALE IS UNSTABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
97
LOAD CELL OR SCALE COMMUNICATION PROBLEMS . . . . . . . . . . . . . . .
98
PARTS IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Serial Number_______________________
Date of Purchase ____________________
Purchased From_____________________
___________________________________
___________________________________
RETAIN THIS INFORMATION FOR FUTURE USE
PRECAUTIONS
Before using this product, read this manual
and pay special attention to all
"NOTIFICATION" symbols:
DANGER!
WARNING!
CAUTION!

0330-0653-0M Rev D • DC Load Cell Kit
III
Copyright
All rights reserved. Reproduction or use, without expressed written permission, of editorial or
pictorial content, in any manner, is prohibited. No patent liability is assumed with respect to the
use of the information contained herein.
Disclaimer
While every precaution has been taken in the preparation of this manual, the Seller assumes
no responsibility for errors or omissions. Neither is any liability assumed for damages
resulting from the use of the information contained herein. All instructions and diagrams have
been checked for accuracy and ease of application; however, success and safety in working
with tools depend largely upon individual accuracy, skill, and caution. For this reason, the
Seller is not able to guarantee the result of any procedure contained herein. Nor can they
assume responsibility for any damage to property or injury to persons occasioned from the
procedures. Persons engaging the procedures do so entirely at their own risk.
FCC Compliance Statement
This equipment generates uses, can radiate radio frequency, and if not installed and used in
accordance with the instruction manual, may cause interference to radio communications. It
has been designed within the limits for a Class A computing device pursuant to Subpart J of
Part 15 of FCC rules to provide reasonable protection against such interference when
operated in a commercial environment. The operation of this equipment in a residential area
may cause interference in which case the user will be responsible to take whatever measures
necessary to correct the interference.
You may find the booklet “How to Identify and Resolve Radio-TV Interference Problems”
prepared by the Federal Communications Commission helpful. It is available from the U.S.
Government Printing Office, Washington, D.C. 20402. Request stock No. 001-000-00315-4.

0330-0653-0M Rev D • DC Load Cell Kit
IV

0330-0653-0M Rev D • DC Load Cell Kit
1
INTRODUCTION
Cardinal Scale’s DC Load Cell kit provides you with the components necessary for the
construction of a digital scale for a tank/hopper installation or an above-ground or pit truck
scale. The DC Load Cell Kit utilizes Cardinal Scale’s SmartCell DC digital load cells and
225DLC or 825-DLC Digital Load Cell Controller to provide in-depth diagnostics, easy
maintenance, and a simplified calibration. Braided cabling is available for enhanced rodent
protection throughout the scale.
This manual should be studied thoroughly before attempting to install the digital scale and
must be used in conjunction with certified drawings of the particular scale being installed.
In case of conflict, the certified drawings will govern.
Safety should always be the prime consideration during all phases of the installation. Failure to
comply with the instructions in this manual will void all warranty implied or stated.

0330-0653-0M Rev D • DC Load Cell Kit
2
LOAD CELL INSTALLATION
NOTE: Cardinal Scale Mfg. Co. recommends that the customer install protective conduit/cover
for the load cell cables whenever the condition is present that can result in damage or abrasion
to the load cell cables.
CAUTION! Be sure all restraint systems are loosened before jacking up the scale.
1. At each section, jack up the weighbridge and remove the load cell spacers.
2. Verify that the recess in the lower Locating Plate is clean and free of dirt and debris.
3. Place the load cells in the lower Locating Plate, following these guidelines:
•Ensure the flat surface (A) of the load cell is aligned with the notch (B) in the load cell
bearing cup.
•Make sure you place the load cell bearing cup with the notch in the lower locating plate.
•Additionally, the load cell must be correctly oriented on the scale. The notch in the load
cell bearing cup must be placed in the lower locating plate in the direction of longitudinal
scale movement (with the flow of traffic).
WARNING! Failure to install the load cell correctly in the load cell bearing cup,
and the notched load cell bearing cup properly oriented in the lower locating
plate will result in damage to the load cell and void the warranty!
NOTE: The load cell bearing cups are provided with O-ring seals to ensure the cleanliness of
the bearing surfaces, and that the bearing buttons are properly centered on the bearing
surface. Should the cups become separated from the cells, first lubricate the O-ring, and then
using a small wire to break the air seal on the O-ring, press the load cell bearing button back
into the load cell bearing cup, and then remove the wire.
B
A
A
Flow of Traffic
Correctly
installed load
cell bearing cup.
Incorrectly installed load
cell bearing cup.
Flat surface (A) of
load cell correctly
installed in notch
(B) of load cell
bearing cup.
Flat surface (A) of load
cell incorrectly installed
in notch (B) of load cell
bearing cup.

0330-0653-0M Rev D • DC Load Cell Kit
3
LOAD CELL INSTALLATION, CONT.
4. Lower the weighbridge in place and verify that the load cell bearing cup is seated on the top
plate and that the load cell is plumb (within 2 degrees in all directions).
5. When all load cells are in place, verify that the scale weighbridge is properly located
laterally and longitudinally. Verify that all load cells are vertical (plumb, within 2 degrees in
all directions). If any are not plumb, jack up the scale at that cell, and reposition the cell.
Care should be exercised to ensure that when the process is complete, all load cells are
vertical (plumb).
6. After repositioning the load cells, again verify that they are vertical (plumb, within 2 degrees
in all directions) and that the weighbridge is seated on each load cell.
7. Next, verify that each load cell is taking its share of the dead load of the scale. If necessary,
install one or more shims between the upper loading bearing cup and weighbridge.
Refer to the Balancing Weighbridge Dead Load section of this manual for instructions on
checking load cell output.
LATERAL AND LONGITUDINAL CHECKING
The check stand brackets should be set on smooth and level concrete and securely fixed to
the concrete to prevent damage to the load cells and/or the scale from excessive movement of
the scale weighbridge.
IMPORTANT! Cardinal Scale Mfg. Co. recommends that lateral and longitudinal
checking limits be adjusted to ± 1/8-inch (3.2 mm) clearance.
IMPORTANT!Load cell
must be vertical (plumb)
within 2 degrees in all
directions!

0330-0653-0M Rev D • DC Load Cell Kit
4
INSTALLING LOAD CELL CABLES
All digital scales using Cardinal Scale’s SmartCell DC digital load cells are connected with a
daisy-chained CAN (Controller Area Network) cable. The load cell connection loop can begin
at any load cell and may continue clockwise as shown or counter-clockwise if preferred. Note
that in the tank/hopper example below there is not a connection between cells 1 and 2 and in
the truck scale example, there is not a connection between cells 4 and 6.
NOTE: Be sure to install the End Node Terminator on the load cell at the end of the connection
loop as shown in both examples.
Example: Typical Tank/Hopper Configuration
NOTE: If the loop were run in the other direction, the sequence would then be 2-4-3-1 with
load cell 1 having the End Node Terminator installed on it.
Example: Typical Truck Scale Configuration
NOTE: If the loop were run in the other direction, the sequence would then be 6-8-7-5-3-1-2-4
with load cell 4 having the End Node Terminator installed on it.
Homerun Cable
7
1
2
3
6
5
8
End Node
Terminator
4
225D or 825D
End Node
Terminator
1
3
225D or 825D
4
Homerun
Cable
2