Rice Lake | BenchMark Series | BenchMark Series Installation/Service Manual

BenchMark Series
TM
Single Point Bench Scales
Installation/Service
Manual
22125
Contents
1.0
Introduction.................................................................................................................................. 1
1.1
1.2
1.3
1.4
10"x10" and 12"x12" SL Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12", 18", and 24" Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12" x 18" Stainless Steel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4.1
1.4.2
1.4.3
2.0
1
2
2
3
10" x 10" and 12" x 12" SL Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
12" x 18" Stainless Steel Model. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
12", 18" and 24" Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installation ................................................................................................................................... 4
2.1 Leveling Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 Connecting the Load Cell Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.3 Grounding the Scale Base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.0
4.0
5.0
Calibration ................................................................................................................................... 5
Troubleshooting Guide ................................................................................................................. 5
Load Cell Replacement................................................................................................................ 6
5.1 10"x10" and 12"x12" SL Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5.2 12", 18", and 24" Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6.0
7.0
8.0
9.0
10.0
11.0
12.0
Load Cell Replacement Table...................................................................................................... 8
Installing Protective Clamshells ................................................................................................. 8
Replacement Parts - 10" x 10" and 12" x 12" SL Models ......................................................... 9
Replacement Parts - 12" Models (Mild Steel Only).................................................................. 10
Replacement Parts - 12" x 18" SST Model............................................................................... 11
Replacement Parts - 18" and 24" Models ................................................................................ 12
BenchMark Series Limited Warranty ........................................................................................ 13
5FDIOJDBMUSBJOJOHTFNJOBSTBSFBWBJMBCMFUISPVHI3JDF-BLF8FJHIJOH4ZTUFNT
$PVSTFEFTDSJQUJPOTBOEEBUFTDBOCFWJFXFEBUXXXSMXTDPNPSPCUBJOFE
CZDBMMJOHBOEBTLJOHGPSUIFUSBJOJOHEFQBSUNFOU
© 2007 Rice Lake Weighing Systems. All rights reserved. Printed in the United States of America. Specifications subject to
change without notice.
December 2007
i
1.0
Introduction
Congratulations on choosing a scale from the
BenchMark™ series, the highest-quality single-point
benchtop scale available. The following types of
NTEP-approved BenchMark scales are available:
Authorized distributors and their employees can
view or download this manual from the Rice Lake Weighing
Systems distributor site at: www.ricelake.com
•
The light-capacity SL series featuring stainless steel construction in 10"x10" and 12"x12" platforms with
capacities from 5 lb to 100 lb.
• A mid-range model with a 12"x18" platform and a cover and frame that are constructed of stainless steel.
This model is available in capacities from 50 lb to 100 lb.
• The medium-capacity series is constructed with stainless steel covers, and mild steel—or optional
stainless steel—frame construction. This series is available in sizes from 12" x 12" up to 24" x 24" in
capacities from 30 lb to 1,000 lb. This manual covers each scale series.
One exciting feature of the BenchMark series is its ability to be converted into a checkweigher. By adding the
neck and head from a CW-80 CheckWeigher to your BenchMark scale, the features of a checkweigher are
available to you. Contact your Rice Lake Weighing Systems distributor for more information.
1.1
10"x10" and 12"x12" SL Models
All seven models of the 10" x 10" and 12"x12" SL series have stainless steel covers and frame systems. All
models use an RL1042 load cell. The 10, 20, 30, 50, and 100 lb models come standard with a potted RL1042 load
cell that offers extra protection against water infiltration but is not designed for washdown use. The 30, 50, and
100 lb models can also be supplied with an RL1140 stainless steel load cell. Extra load cell protection is also
available in optional stainless steel “clamshells” which enclose the load cell. See Section 7.0 for information
about clamshell installation. All load cells come with 10 feet of cable.
/VERLOAD0ROTECTION3PRINGS
Figure 1-1. Overload Springs
The SL series scales use a sensitive 4-point, spring-plate suspension to minimize shock and overload damage
susceptible of light-capacity scales. The system uses a bolt and an overload protection spring at each of four
loading points beneath the top cover (see Figure 1-1). Each spring is set for a specific tension so that it will
compress to prevent overload damage. If a potentially damaging load is placed on a corner of the scale, the spring
at that corner compresses. When the spring compresses, the load is taken off the load cell. This eliminates the
possibility of overloading the load cell. Likewise, if a load more than 150% of total capacity is placed anywhere
on the deck, the springs will compress and remove the load from the load cell.
In addition to the overload protection spring, the SL models incorporate a load cell overload protection screw
beneath the load cell to help prevent overload damage.
To protect the load cell from being accidentally forced upward and damaged by improperly lifting the scale by
the spider, a lift up protection screw is incorporated into the design (see Figure 1-2).
,IFTUP0ROTECTION3CREW
/VERLOAD0ROTECTION3CREW
Figure 1-2. Lift up Protection Screw
Introduction
1
1.2
12", 18", and 24" Models
Larger models in the series use mild steel frames and stainless steel deck covers for light washdown with a damp
sponge. All models are available with mild steel or optional stainless steel underbody frame construction. The
standard load cell is either an RL1042 or RL1260, depending on capacity. Options include a stainless steel
RL1140 load cell for 12" x 12" and 12" x 18" models and protective stainless steel clamshells for all models
using RL1042 or RL1260 load cells. All load cells come with 10 feet of cabling.
/VERLOAD3TOPS
4OP&RAME
/VERLOAD0ROTECTION3CREW
Figure 1-3. 12" x 12" With Overloads
These medium-capacity bench scales provide overload protection for the load cell by positive stops located
beneath each corner of the top frame (see Figure 1-3). These stops are set at the factory for 100% of scale
capacity. Additional overload protection is provided by an overload screw beneath the load cell to help prevent
shock damage.
1.3
12" x 18" Stainless Steel
The 12" x 18" model has a stainless steel cover and underbody frame to meet USDA requirements and make it
ideal for washdown use. The 12" x 18: comes standard with an RL1042 load cell; a stainless steel load cell is
optional for both the 50 lb and 100 lb models. Extra load cell protection is available with the optional stainless
steel "clamshell" that encloses the load cell. See Section 7.0 for information about clamshell installation. All
locad cells come with 10 feet of cabling.
These medium capacity bench scales provide overload protection with positive stops located beneath each corner
of the top frame. These stops are set at the factory for 100% of scale capacity. Additional overload protection is
provided by an overload screw beneath the load cell to help prevent shock damage.
2
Benchmark Series Installation & Service Manual
1.4
Specifications
1.4.3
12", 18" and 24" Models
Load Cell:
1.4.1
12"x12" and 12"x18":
RL1042-N5 potted single-point
18"x18", 18"x24" and 24"x24":
RL1260-N5 potted single-point
5 point, independently adjusted
10 ft. (3 m) – 6 wire shielded
0.91 mV/V
350Ω
200%
10" x 10" and 12" x 12" SL Models
Load Cell:
RL1042-N5 potted single point
(5 lb is not potted)
RL1140 potted single point, stainless
steel load
cell optional on 30, 50, and 100 lb
models
Rated Output:
0.91 mV/V
Maximum Overload: 200%
Overload Protection: Spring loaded spider
Cable Length:
10 ft. (3 m) – 6 wire shielded
Output Impedance (ohms): 350Ω
Compensated
Temperature Range: -10°C/14°F to +50°C/122°F
Safe Temperature Range:-30°C/-22°F to +70°C/158°F
Dimensions/Capacities:
Overload Protection:
Cable Length:
Rated Output:
Output Impedance:
Maximum Overload:
Compensated
Temperature Range: -10°C/14°F to +50°C/122°F
Safe Temperature Range:-30°C/-22°F to +70°C/158°F
Dimensions/Capacities:
Size
12" x 12" / 305mm x 305mm
Capacity
30 lb / 13.6 kg
Height
3.62" / 92mm
50 lb / 25 kg
100 lb / 50 kg
Size
Capacity
10" x 10"/254mm x 254mm
12" x 12"/305mm x 305mm
Height
12" x 18" / 305mm x 457mm
3.15" / 80 mm
10 lb / 4.5 kg
3.15" / 80 mm
20 lb / 9.1 kg
3.15" / 80 mm
100 lb / 50 kg
30 lb / 13.6 kg
3.15" / 80 mm
150 lb / 75 kg
30 lb / 15 kg
3.25" / 92 mm
200 lb / 100 kg
50 lb / 25 kg
3.25" / 92 mm
250 lb / 125 kg
100 lb / 50 kg
3.25" / 92 mm
300 lb / 150 kg
50 lb / 25 kg
5.25" / 133mm
500 lb / 250 kg
1000 lb / 500 kg
12" x 18" Stainless Steel Model
Load Cell:
3.62" / 92mm
100 lb / 50 kg
18" x 18" / 457mm x 457mm
Table 1-1. 10" x 10" and 12" x 12" SL Model Sizes
1.4.2
50 lb / 25 kg
5 lb / 2.3 kg
RL1042-N5 potted single point
RL1140 potted single point, stainless
steel load cell
optional on 50 lb and 100 lb models
Rated Output:
0.91 mV/V
Maximum Overload: 200%
Overload Protection: 5 point, independently adjusted
Cable Length:
10 ft. (3 m) – 6 wire shielded
Output Impedance (ohms): 350Ω
Compensated
Temperature Range: -10°C/14°F to +50°C/122°F
Safe Temperature Range:-30°C/-22°F to +70°C/158°F
Dimensions/Capacities:
18" x 24" / 457mm x 610mm
50 lb / 25 kg
5.25" / 133mm
100 lb / 50 kg
150 lb / 75 kg
200 lb / 100 kg
250 lb / 125 kg
300 lb / 150 kg
500 lb / 250 kg
1000 lb / 500 kg
24" x 24" / 610mm x 610mm
100 lb / 50 kg
5.25" / 133mm
150 lb / 75 kg
200 lb / 100 kg
250 lb / 125 kg
300 lb / 150 kg
Size
12" x 18" / 305mm x 457mm
Capacity
Height
50 lb / 25 kg
4.00" / 102mm
100 lb / 50 kg
4.00" / 102mm
Table 1-2. 12" x 18" Stainless Steel Model Sizes
500 lb / 250 kg
1000 lb / 500 kg
Table 1-3. 12", 18, and 24" Model Sizes
Introduction
3
2.0
Installation
2.1
Leveling Scale
Remove the scale from the shipping container and place it in the desired location. Lift off the deck cover and
locate the bubble level. Adjust the four corner feet until the scale is level and all feet contact the support surface
so the scale does not rock. Lock the jam nuts on the feet when the final level is correct.
2.2
Connecting the Load Cell Cable
All models come with 10 feet of color-coded load cell cable. Do not cut this cable. The load cell is
temperature-compensated for an exact cable length of 10 feet.
See your indicator manual to determine the proper load cell cable input connectors. Use the following color
codes to wire the load cell cable.
For 6-wire operation:
For 4-wire operation:
6-Wire Color Code
Function
4-Wire Color Code
Function
Red
+ Signal
Red
- Signal
White
- Signal
White
+ Signal
Green
+ Excitation
Green and Blue*
+ Excitation
Black
- Excitation
Black and Brown*
- Excitation
Blue
+ Sense
Yellow or Bare
Shield
Brown
- Sense
Yellow or Bare
Shield
Table 2-1. Load Cell Wiring - 6 Wire
2.3
Table 2-2. Load Cell Wiring - 4 Wire
* Connect Sense and Excitation wires together if using 4-wire
system without sense leads.
Grounding the Scale Base
Bench scales can build up a static electricity charge during weighing operations. If powerful enough, this charge
can travel through the load cell cable to the indicator. To prevent this, all bench scales should be adequately
grounded so that static charges and transient electrical surges can drain directly to ground. Recommended
practice is to connect the scale base to an AC ground circuit using at least #12 wire. All BenchMark scales have
either a grounding screw or a hole for such a grounding screw located on the bottom of the lower frame for this
purpose.
4
Benchmark Series Installation & Service Manual
3.0
Calibration
It is recommended that the scale be “exercised” by loading it to near capacity 2 or 3 times before calibration to be
certain that everything is seated. To calibrate your BenchMark:
1. With no load on scale, place the indicator in its calibration mode and perform a zero calibration.
2. Place test weights on platform equal to 70%–100% of scale’s capacity. If several weights are used, they
distribute them evenly around the platform.
3. Perform a span calibration.
4. Remove the test weights and check the zero reading. If necessary, repeat the calibration process.
See the indicator manual for the specific indicator calibration procedure.
4.0
Troubleshooting Guide
Use the following troubleshooting tips for the Benchmark scale if necessary.
Symptom
No display
Display starts at zero
Erratic Weight display
Consistently low weight
Probable Cause
Remedy
Power disconnected
Connect power
Cable cut or disconnected
Repair cable
Signal leads incorrectly wired at indicator
Connect according to the manual
Incorrect load cell cable connections
Connect according to the manual
Faulty indicator
Service indicator
Vibration near the scale
Remove the source of the vibration, or
adjust digital averaging of indicator to
minimize erratic display
Scale not level
Level the scale
Water damage to the load cell or cable
Replace the load cell
Faulty indicator
Service the indicator
Loose load cell screws
Tighten to correct torque
Faulty load cell
Test and replace if necessary
Indicator not properly adjusted to zero
Zero indicator correctly
Scale deck cover binding
Obtain adequate clearance
Overload stops set too high
Reset the stops correctly
Indicator not calibrated for scale
Calibrate the scale
Faulty load cell
Test and replace if necessary
Table 4-1. Benchmark Troubleshooting Table
Calibration
5
5.0
5.1
Load Cell Replacement
10"x10" and 12"x12" SL Models
1. Unplug AC power from indicator and disconnect load cell cable from indicator.
2. Lift off scale top cover. Locate two upper load cell screws. Use 7/16" wrench to unscrew and remove
those two load cell screws. Do not remove four spring-loaded screws that attach load plate to spider
assembly. Lift off load plate/spider assembly as a unit. Remove spacer between load plate and load cell
and set it aside.
,OAD0LATE3PIDER
4OP#OVER
,OAD#ELL3CREW
/VERLOAD
0ROTECTION
3CREW
,IFTUP
0ROTECTION
3CREW
4OP3UB!SSEMBLY
,OAD#ELL3CREW
Figure 5-1. Load Cell Mount Diagram
3. Turn scale over and back off overload protection screw one complete turn. Completely unscrew and
remove lift up protection screw.
4. Use 7/16" wrench to unscrew and remove two lower load cell screws. The load cell and cable can now be
removed from scale. Do not lose shim beneath load cell.
5. Thread cable of replacement load cell through rubber grommet. Position load cell on shim and screw in
two lower load cell screws. Torque to 80 in-lb.
6. Replace lift up protection screw by screwing it in until it lightly bottoms, then back it off 1/4 turn.
7. Turn scale right side up. Position spacer on load cell, then place load plate/spider assembly into position.
Screw in two upper load cell screws. Torque to 80 in-lb.
8. Using an accurate caliper, check compressed spring length on four overload springs (Figure 5-2). If
necessary, adjust spring length to specifications shown in Table 5-1. Replace top cover and re-level scale
if necessary.
9. Connect load cell cable to indicator.
10. Recalibrate scale as described in Section 3.0.
11. Adjust overload protection screw on bottom of scale by loading scale to 125% capacity. Place this weight
on top cover, centered on platform. Use a hex wrench to screw in overload protection screw until it
touches load cell, then back off 1/6 turn. Recheck calibration.
Scale Model
Spring Length "H"
10 x 10 - 5 Lb
1.06
10 x 10 - 10 Lb
.94
10 x 10 - 20 Lb
.97
10 x 10 - 30 Lb
1.43
12 x 12 - 30 Lb
1.43
12 x 12 - 50 Lb
1.12
12 x 12 - 100 Lb
1.16
(p
Table 5-1. Overload Spring Length
Figure 5-2. Spring Height
6
Benchmark Series Installation & Service Manual
5.2
12", 18", and 24" Models
1. Unplug AC power from indicator and disconnect load cell cable from indicator.
2. Lift off scale top cover. Locate upper load cell screws. Depending on model of scale, there will be either
two or four upper load cell screws. Unscrew and remove those load cell screws. Lift off top spider.
Remove spacer plate and set it aside.
,OAD#ELL3CREWS
4OP&RAME
,OAD0LATE
/VERLOAD0ROTECTION3CREW
/VERLOAD3TOP3CREWS
,OAD#ELL3CREWS
Figure 5-3. 12" x 12" Load Cell Mount
3. Loosen four overload stop screws and turn each screw in one turn to provide ample clearance for the new
load cell. Turn scale over and back off overload protection screw one complete turn to provide clearance.
4. Unscrew and remove lower load cell screws. Depending on model of scale, there will be either two or
four lower load cell screws. Remove bottom shim beneath load cell and set it aside. Remove load cell
and cable from scale.
5. Thread cable of replacement load cell through rubber grommet. Position bottom shim directly beneath
load cell and screw in lower load cell screws. Torque to 80 in-lbs for 12" x 12" and 12" x 18" scales, to
120 in-lb for 18" x 18", 18" x 24", and 24" x 24" scales.
6. Turn scale right side up. Position spacer plate on load cell, then place top spider into position. Screw in
four upper load cell screws. Torque to 80 in-lbs for 12" x 12" and 12" x 18" scales, to 120 in-lb for
18" x 18", 18" x 24", and 24" x 24" scales.
7. Connect load cell cable to indicator.
8. Recalibrate scale as described in Section 3.0 of this manual.
9. Adjust overload protection screw on bottom of scale by loading scale to 125% capacity. Place this weight
on top cover, centered on platform. Use a hex wrench to screw in overload protection screw until it
touches the load cell, then back off 1/6 turn. Recheck calibration.
10. To reset corner overload stop screws, load top spider over one corner with approximately 30% of scale
capacity. Adjust screw under that corner to just touch top frame. Place a drop of a non-permanent,
high-strength locking compound such as LOCTITE® on the thread. Back screw off slightly so it is not
touching.
LOCTITE is a registered trademark of the Loctite Corporation
Load Cell Replacement
7
6.0
Load Cell Replacement Table
The following table illustrates the load cell replacement numbers used with the Benchmark scales.
Deck Size
Capacity
Load Cell
P/N
10 x 10
5 Lb
RL1042-N5-5 Kg
40957
10 x 10
10 Lb
RL1042-N5-10 Kg
40958
10 x 10
20 Lb
RL1042-N5-20 Kg
40960
10 x 10
30 Lb
RL1042-N5-30 Kg
40961
12 x 12
30 Lb
RL1042-N5-30 Kg
40961
12 x 12
50 Lb
RL1042-N5-50 Kg
40962
12 x 12
100 Lb
RL1042-N5-100 Kg
40964
12 x 12
30 Lb
RL1042-N5-30 Kg
40961
12 x 12, 12 x 18
50 Lb
RL1042-N5-50 Kg
40962
12 x 12, 12 x 18
100 Lb
RL1042-N5-100 Kg
40964
18 x 18, 18 x 24
50 Lb
RL1260-N5-50 Kg
41020
18 x 18, 18 x 24, 24 x 24
100 Lb
RL1260-N5-100 Kg
41022
18 x 18, 18 x 24, 24 x 2
150 Lb
RL1260-N5-150 Kg
41023
18 x 18, 18 x 24, 24 x 2
200 Lb
RL1260-N5-200 Kg
41023
18 x 18, 18 x 24, 24 x 2
250 Lb
RL1260-N5-250 Kg
41024
18 x 18, 18 x 24, 24 x 2
300 Lb
RL1260-N5-300 Kg
41025
18 x 18, 18 x 24, 24 x 2
500 Lb
RL1260-N5-500 Kg
41026
18 x 18, 18 x 24, 24 x 2
1000 Lb
RL1260-N5-1000 Kg
32858
Table 6-1.
7.0
Installing Protective Clamshells
Stainless steel enclosures called clamshells are
available to provide extra protection for the load cell
of every BenchMark scale. All clamshells are
pre-drilled for load cell screws, overload screws, and
cables. Any existing load cell shims or spacers are
installed inside the clamshells.
The lower clamshell fits inside the upper clamshell
and is installed first. Position the clamshell so that no
part of it touches the load cell, then tighten the lower
load cell screws to the specifications given in the load
cell replacement section of this manual. When
installing the upper clam shell, position it so there is
clearance on all sides to prevent any binding problems
with the lower clam shell. Tighten the upper load cell
screws to the required torque.
When installation is complete, reset all overload
protection screws as described in Section 5.0, Load
Cell Replacement. Calibrate the scale according to the
procedure described in Section 3.0.
8
Benchmark Series Installation & Service Manual
500%2
#,!-3(%,,
,/7%2
#,!3(%,,
Figure 7-1. Clamshell Enclosure
8.0
Replacement Parts - 10" x 10" and 12" x 12" SL Models
!
3ECTION""%NLARGED
"
"
!
4/06)%7/&3#!,%
7)4(#/6%2
3ECTION!!%NLARGED
Item
Item
Description
Qty.
Description
Qty.
15
Internal lock washer, #8, SS
1
1
Lift up protection screw, 1/4 - 28 x 3/8, SS
1
16
Rubber grommet, 3/16 ID x 1/2 OD
1
2
Load cell overload stop, 8 -32 x 1/4, SS
1
17
Cable tie, 8"
1
3
Scale foot, 1/4 - 20 x 1 SS
4
18
Overload spring bolt, SS
4
4
Hex jam nut, 1/4 - 20, SS
4
19
Overload spring, SS
4
5
Bottom sub assembly
1
20
Flat washer, 1/4 type A, SS
4
6
Sealing rivet, 1/8 SS
2
21
Nylon insert nut, 1/4 - 20, SS
4
7
Label, bench scale
1
22
Load cell shim, SS
1
8
Top cover, 10 x 10 SS or 12 x 12 SS
1
23
Plastic wire clamp
1
9
Top spider
1
24
Load plate
1
10
Load cell screw, 1/4 - 20 x 5/8 SS
4
25
Washer, rubber
4
11
Lockwasher 1/4 SS
4
26
Washer, #8, SS
1
12
Bubble level, plastic 15 mm
1
27
Machine screw, 8 - 32 x 3/8 SS
1
13
Load cell (see load cell replacement table)
1
28
Load cell spacer
1
14
Pan head screw, 8 - 32 x 1/4 SS
1
Replacement Parts - 10" x 10" and 12" x 12" SL Models
9
9.0
Replacement Parts - 12" Models (Mild Steel Only)
!
!
4/06)%7/&3#!,%3%2)%37)4(#/6%2
2%-/6%$4/3(/7,/#!4)/./&25""%20!$3
3ECTION!!%NLARGED
Item
Item
1
10
Description
Scale foot, 1/4 - 20 x 1
Description
Qty.
Qty.
16
Plastic wire clamp
1
4
17
Rubber grommet, 3/16 x 1/2 OD
1
Load cell shim
1
2
Jam nut, 1/4 - 20
4
18
3
Bottom frame
1
19
Overload protection screw, 8 - 32 x 1/4
1
20
Square insert guide, 1.00 x 14G (steel only)
8
4
Label, bench scale
1
5
Sealing rivet, 1/8
2
6
Overload stop bolt, 1/4 - 20 x 1/2
4
7
Top cover, SS
1
8
Rubber pads, 0.75 dia.
12
9
Lockwasher, 1/4 PLT
4
10
Load cell screw, 1/4 - 20 hex head
4
11
Load cell spacer
1
12
Bubble level, plastic 15 mm
1
13
Load cell (see load cell replacement table)
1
14
Top spider
1
15
Cable tie 8"
1
Benchmark Series Installation & Service Manual
10.0
Replacement Parts - 12" x 18" SST Model
4/06)%7/&X334
3#!,%7)4(#/6%22%-/6%$
!
/VERLOADPROTECTIONSCREW
LOCATEDUNDERLOADCELL
BEHINDTHISVIEW
Item
Item
Description
Description
Qty.
Qty.
11
Top cover, 12 x 18 x 1
1
1
Foot, bench scale 1/4
4
12
Screw, cap 1/4 - 20 NC x 1/2
4
2
Jam nut, 1/4 - 20NC hex SST
4
13
Cable tie, 8" nylon
1
3
Bottom sub assembly
1
14
Rubber grommet
1
4
Label, bench scale, 5 x 3/4
1
15
Clamp, cable NO 8 hole
1
5
Sealing rivet, 1/8 dia x 3/8
2
16
Machine screw 8-32 NC x 3/8
2
6
Screw cap, 1/4 - 20 NC x 3/4
4
17
Washer, plain STD No 8 SST
1
7
Shim, load cell, .125 x 1 x 1.34
1
18
Shim, load cell, .060 x 1 x 1.34
1
8
Screw cap 1/4 - 20 NC x 3/4
4
19
Screw, set 8-32 NC x 1/4 hex
1
20
Level, spirit bubble
1
8A
Lock washer, 1/4 regular
4
9
Load cell (see load cell replacement table)
1
10
Top spider
1
Replacement Parts - 12" x 18" SST Model
11
11.0
Replacement Parts - 18" and 24" Models
!
!
4/06)%7/&v!.$3#!,%3%2)%37)4(#/6%2
2%-/6%$4/3(/7,/#!4)/./&25""%20!$3
3ECTION!!%NLARGED
Item
Item
12
Description
Description
Qty.
Qty.
12
Bubble level, plastic 15mm
1
Load cell (see load cell replacement table)
1
1
Scale foot, 3/8 - 16 x .78
4
13
2
Jam nut, 3/8 - 16
4
14
Square insert glide, 1.50 x 11G. (steel only)
8
Top spider
1
3
Bottom frame
1
15
4
Label, bench scale
1
16
Cable tie, 8"
1
Plastic wire clamp
1
5
Sealing rivet, 1/8
2
17
6
Overload stop bolt, 3/8 - 16
4
18
Rubber grommet, 3/16 ID x 1/2 OD
1
Load cell screw, 5/16 - 18 x 3/4, hex head
4
7
Top cover, SS
1
19
8
Rubber pads, 1.25" x 1.25"
20
20
Load cell shim
1
21
Overload protection screw, 1/2 - 20 x 1/2
1
9
Lockwasher, 5/16
8
10
Load cell screw, 5/16 - 18 x 1, hex head
4
11
Load cell spacer
1
Benchmark Series Installation & Service Manual
12.0
BenchMark Series Limited Warranty
Rice Lake Weighing Systems (RLWS) warrants that all RLWS equipment and systems properly installed by a
Distributor or Original Equipment Manufacturer (OEM) will operate per written specifications as confirmed by
the Distributor/OEM and accepted by RLWS. All systems and components are warranted against defects in
materials and workmanship for two years.
RLWS warrants that the equipment sold hereunder will conform to the current written specifications authorized
by RLWS. RLWS warrants the equipment against faulty workmanship and defective materials. If any equipment
fails to conform to these warranties, RLWS will, at its option, repair or replace such goods returned within the
warranty period subject to the following conditions:
• •Upon discovery by Buyer of such nonconformity, RLWS will be given prompt written notice with a detailed
explanation of the alleged deficiencies.
•
•
•Individual electronic components returned to RLWS for warranty purposes must be packaged to prevent
•
•
•Examination of such equipment by RLWS confirms that the nonconformity actually exists, and was not caused by
•
•
•Such equipment has not been modified, altered, or changed by any person other than RLWS or its duly authorized
•
•
•RLWS will have a reasonable time to repair or replace the defective equipment. Buyer is responsible for shipping
•
•
•In no event will RLWS be responsible for travel time or on-location repairs, including assembly or disassembly of
electrostatic discharge (ESD) damage in shipment. Packaging requirements are listed in a publication, “Protecting
Your Components From Static Damage in Shipment,” available from RLWS Equipment Return Department.
accident, misuse, neglect, alteration, improper installation, improper repair or improper testing; RLWS shall be the
sole judge of all alleged non-conformities.
repair agents.
charges both ways.
equipment, nor will RLWS be liable for the cost of any repairs made by others.
THESE
WARRANTIES EXCLUDE ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING WITHOUT
LIMITATION WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE . N EITHER
RLWS NOR DISTRIBUTOR WILL, IN ANY EVENT, BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES.
RLWS
AND BUYER AGREE THAT RLWS’S SOLE AND EXCLUSIVE LIABILITY HEREUNDER IS LIMITED TO
REPAIR OR REPLACEMENT OF SUCH GOODS. IN ACCEPTING THIS WARRANTY, THE BUYER WAIVES ANY AND
ALL OTHER CLAIMS TO WARRANTY.
SHOULD
THE SELLER BE OTHER THAN
WARRANTY CLAIMS.
RLWS,
THE BUYER AGREES TO LOOK ONLY TO THE SELLER FOR
No terms, conditions, understanding, or agreements purporting to modify the terms of this warranty shall have
any legal effect unless made in writing and signed by a corporate officer of RLWS and the Buyer.
© 2007 Rice Lake Weighing Systems, Inc. Rice Lake, WI USA. All Rights Reserved.
RICE LAKE WEIGHING SYSTEMS • 230 WEST COLEMAN STREET • RICE LAKE, WISCONSIN 54868 • USA
BenchMark Series Limited Warranty
13
Download PDF

advertising