Rice Lake equipoise User manual

Compact Balance
Technical Manual
PN 129541 Rev D

Contents i
Contents
Introduction..................................................................................................1
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Installation ...................................................................................................4
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Battery Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Setting Up The Balance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Level Adjusting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Operation......................................................................................................7
Initial Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Power On/Off. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Zero. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Tare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Weighing Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Percent Weighing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Parts Counting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Parts Counting With A Container . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Accumulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Memory Recall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Memory Clear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Calibration .................................................................................................11
Normal Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Linear Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Parameter Settings ....................................................................................12
Enter Parameter Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Set Weighing Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Set Backlight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
RS-232 Output ............................................................................................15
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
RS-232 (9-pin D Type Connector) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
© Rice Lake Weighing Systems. All rights reserved. Printed in the United States of America.
Specifications subject to change without notice.
Rice Lake Weighing Systems is an ISO 9001 registered company.
September 16, 2015
Technical training seminars are available through Rice Lake Weighing Systems.
Course descriptions and dates can be viewed at www.ricelake.com/training
or obtained by calling 715-234-9171 and asking for the training department.

ii Equipoise Series Technical Manual
Maintenance ..............................................................................................16
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Balance Does Not Operate Properly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Replace Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Troubleshooting .........................................................................................19
Rice Lake continually offers web-based video training on a growing selection
of product-related topics at no cost. Visit www.ricelake.com/webinars.

Safety 1
1.0 Introduction
The Equipoise balance amplifies signals from a load cell, converts it to digital data and
displays it as a mass value. It is an accurate, fast and versatile series of general purpose
balances with counting and percent weighing functions.
Other features include:
• 25 mm LCD with black backlit display
• Keypads are light touch switches
• Battery provides up to 40 hours of continuous use (without backlight)
• Capacity 300 g (.661lb) to 3000 g (6.613 lb).
All units include automatic zero tracking, automatic tare and an accumulation facility
which allows the count to be stored and recalled as an accumulated total.
This manual can be viewed and downloaded from the Rice Lake Weighing
Systems website at: www.ricelake.com
Warranty information can be found on the website at www.ricelake.com/
warranties
1.1 Safety
Safety Symbol Definitions
Indicates a potentially hazardous situation that, if not avoided, could
result in serious injury or death, and includes hazards that are exposed
when guards are removed.
Indicates information about procedures that, if not observed, could
result in damage to equipment or corruption to and loss of data.
Safety Precautions
Do not operate or work on this equipment unless you have read and
understand the instructions and warnings in this manual. Failure to
follow the instructions or heed the warnings could result in injury or
death. Contact any Rice Lake Weighing Systems dealer for
replacement manuals. Proper care is your responsibility.
General Safety
Failure to heed may result in serious injury or death.
Some procedures described in this manual require work inside the indicator enclosure.
These procedures are to be performed by qualified service personnel only.
Before opening the unit, ensure the power cord is disconnected from the outlet.
Disconnect all power to this unit before installing, cleaning or servicing.
Do not allow minors (children) or inexperienced persons to operate this unit.
WARNING
Important
WARNING

2 Equipoise Series Technical Manual
Do not operate without the enclosure completely assembled.
Do not use for purposes other than weight taking.
Do not place fingers into slots or possible pinch points.
Do not use this product if any of the components are cracked.
Do not exceed the rated specification of the unit, see Section 9.17 on page 74.
Do not make alterations or modifications to the unit.
Do not remove or obscure warning labels.
Do not submerge.
The balance is a precision electronic instrument. Handle it carefully.
Do not install the balance in direct sunlight.
Verify that the local voltage and receptacle type are correct for the balance.
Only use original adapter. Others could cause damage to the balance.
Balance should be located in an area near an easily accessible socket outlet.
Avoid unstable power sources. Do not place near equipment such as welders or large
motors that use large amounts of electricity
Avoid sudden temperature changes, vibration, wind and water.
Avoid heavy RF noise.
Keep the balance clean.
Important

Description 3
1.2 Description
Keyboard
Figure 1-1. Equipoise Overlay
Table 1-1. Key and Display Description
On/OffPrint Mode Sample Tare Zero
Sample
Percent
Mode
000000 lb
0F
NET
%
+
-
Key Description
Turns the balance power
On / Off
Subtracts weight of container
Sets display to Zero
Set percentage weighing
function
Set to counting mode
On/Off
Tare
Zero
Percent
Sample
Sample
Set to weighing units
Recalls Memory/Print the results
Standstill Indicator
Zero Indicator
NET Tare Indicator
%Percent Weighing Indicator
Battery Indicator
Key Description
Mode
Mode
Print
+
-

4 Equipoise Series Technical Manual
2.0 Installation
2.1 Unpacking
Use the following instructions to unpack and inspect the balance.
1. Remove the weighing balance from the carton.
2. Remove the protective covering.
3. Inspect the balance and terminal for damage.
4. Make sure all components are included.
Components
Figure 2-1. Component Parts
Air Protection Case
The air protection case is used to protect the balance from air variations while weighing
and is available with light capacity balances only. Carefully secure glass sides 2 & 4 with
poles.
Figure 2-2. Air Protection Parts
Table 2-2. Air Protection Parts List
Item No. Description
1 Balance
2 Adapter
3Pan
Table 2-1. Component Parts List
3
12
1
2
3
4
Item No. Description
1AirCaseTopCover
2 Glass Side-1 covers x 2
3 Pole of glass
4 GlassSide2coversx2
Item No. Description

Battery Charging 5
2.2 Battery Charging
The balance can be operated by battery if desired. Battery life is approximately 40 hours
for continuous use without a backlight.
When the battery needs to be charged, the battery indicator ( ) will turn on.
1. To charge the battery, insert the adapter pin into the jack, located on the right side of
the balance.
2. Plug the balance into a power source. The balance does not need to be turned on.
The battery should be charged for 12 hours for full capacity.
There is an LED to indicate the status of the battery as it is charging. When the balance is
plugged in, the internal battery will be charged.
The color of the LED indicates the following:
•Green — battery has a full charge
•Yellow — battery is nearly full of charge
•Red — battery is being charged
Figure 2-3. LED Light Display
Do not use any other type of power adapter than the one supplied with the balance.
Verify that the AC power socket outlet is properly protected.
Charge the battery before using the balance for the first time.
As the battery is used, it may fail to hold a full charge. If the battery life
becomes unacceptable, contact your distributor.
2.3 Setting Up The Balance
1. Place the balance on a table or another flat
surface.
2. Plug the adapter pin into the balance
adapter jack, located on the right side of the
balance.
3. The adapter plugs into an AC power outlet.
The balance should be located near an
easily accessible socket outlet with a
protective ground/earth contact.
4. Press the On/Off key to turn on the power.
Press the key again to turn off the power.
5. The display will show the version number
and will begin a self test.
6. When the self test is complete, the normal
weighing mode will be displayed.
7. A warm-up time of 15 minutes stabilizes
the measured values after switching on.
8. Calibrate with exact calibration weights. A minimum of 1/3 of the balance capacity
should be used for calibration. See details in Section 4.1 on page 11. The balance is
now ready for use.
+
-
LED Light located on
display panel
Note
Adapter
Jack
RS-232
Figure 2-4 Jack Location

6 Equipoise Series Technical Manual
2.4 Level Adjusting
1. Place the balance on a table or another flat
surface.
2. Check the bubble level. If bubble is not
centered, adjust the leveling feet until it
reaches the center.
Always re-check the level when
changing the location.
Not Level Level
Figure 2-5 Bubble Level
Note

Initial Start-up 7
3.0 Operation
3.1 Initial Start-up
Warm up time of 15 minutes stabilizes the measured values after switching on.
3.2 Power On/Off
1. Press to turn the balance on. The self test will start.
2. Press again to turn balance off.
3.3 Zero
Environmental conditions can lead to the balance not reading zero in spite of the pan not
taking any strain.
Press to set the display to zero.
3.4 Tare
The weight of any container can be tared (subtracts the weight of the container and zeros
the balance) so that with subsequent weighing the net weight of the object being weighed
is always displayed.
1. Place a container on the pan.
2. Press . Tare is subtracted and zero is displayed. When the container is
removed from the platform, the tared weight is displayed as a negative value.
3. Press again to clear the tare.
On/Off
On/Off
Zero
Tare
Tare

8 Equipoise Series Technical Manual
3.5 Weighing Units
Press in the weighing mode to change the unit of measure:
Table 3-1. Weight Unit List
Units can be set to On/Off in the parameters settings. See Section 5.2 on
page 12. If Unit is set to off, it will not show when pressing the Mode key.
3.6 Percent Weighing
The balance can set a base weight to be shown as 100 percent. Then when other weights
are placed on the balance, it will be displayed as a percentage of the original base weight.
For example:
1. Place base weight on the balance.
2. Press . The display will show 100.00 percent.
3. Remove the weight and wait for the display to return to zero.
4. Place the weight you want to compare to the base weight on the platform. The
display shows what percent the current weight is of the base weight.
5. The weighing may be amended on the basis of greater numbers of samples and may
improve the accuracy of percentage of large quantities.
Unit Mark Unit Name Conversion (g)
ggram
ct net carat 0.2g
Lb pound 453.59237g
OZ ounce 28.349523125g
d dram 1.7718451g
GN grain 0.06479891g
OZt troy ounce 31.1034768g
dWt penny weight 1.55517384g
MM momme 3.749996g
TLT tael twn 37.49995g
TLh tael chn 37.799375g
TLJ troy tael 37.4290018g
t tola 11.6638039g
bt bangladeshi tola 1bt=11.6638039g
1bt=16Ana=96Roti
N newton 1N=101.916g
Mode
Mode
Note
Percent

Parts Counting 9
3.7 Parts Counting
1. Press to enter the parts counting mode.
2. Select the sample count by pressing until the desired count is shown. Place
selected quantity of product on the balance.
Table 3-2. Display/Count
3. Press to confirm.
4. Add more items. The weight display will show the total number of parts.
5. Press to exit counting mode.
The balance retains the sample rate until exiting the counting mode.
3.7.1 Parts Counting With A Container
1. Place a container on the platform.
2. Press to zero the balance.
3. Select the parts quantity as shown in Table 3-2 .
4. Place the specified number of parts in the container.
5. Press to confirm. The display will show ---- then the quantity.
6. Add product on the platform. The display will update the parts quantity
automatically to total number of parts in the container.
7. Press to exit counting mode.
Display Count number
sp 10 pcs For 10 pieces
sP 20 pcs For 20 pieces
sP 50 pcs For 50 pieces
sP 100 pcs For 100 pieces
sP 200 pcs For 200 pieces
Sample
Sample
Mode
Mode
Zero
Sample
Sample
Note
Tare
Zero
Sample
Sample

10 Equipoise Series Technical Manual
3.8 Accumulation
Before setting the balance to accumulate, it should be stable ( ) and the display should
be at zero ( ). Accumulation is available only when weight is more than 20 divisions (or
20 times the resolution of the balance).
Accumulation Operation
1. Place the load on the platform.
2. When the stable indicator ( ) is displayed, press .
3. The display will show ACC x (x = total number of accumulations) for three
seconds.
The total saved value will then display for three seconds.
If the optional RS-232 interface is installed, the weight data will be sent to the
printer.
4. Remove the weight from the pan.
5. When the display returns to zero and the stable ( ) indicator is shown, place
another weight on balance.
6. Repeat steps 2-5 for all items to be weighed.
Display will show ADDERR when memory is full.
3.8.1 Memory Recall
To recall the memory, press .
Display will show ACC x (x = total number of accumulations) for three seconds.
The total saved value will then display for three seconds.
3.8.2 Memory Clear
To clear the memory:
1. Press .
2. While accumulation is displayed, press .
The display will return to normal mode; all accumulated memory will be cleared.
Print
Note
Note
Print
Print
Sample
Sample

Normal Calibration 11
4.0 Calibration
4.1 Normal Calibration
1. Press and hold to enter calibration. unload is displayed.
2. Remove any weight from the platform.
3. After the stable indicator ( ) is displayed, press to confirm. Load will
display.
4. Place the calibration weight (1/3 of the capacity) on the platform.
5. When the scale is stable, press key to confirm.
4.2 Linear Calibration
1. Turn on the balance. Press during the self test. F1 UNT will display.
2. Press several times to scroll to tech, then press to enter calibration. PI
Nwill display.
3. Press in sequence. P 1 LIN will display.
4. Press to enter calibration. PI N will display.
5. Press in sequence. load 0 will display.
6. Ensure the platform is empty. After the stable ( ) and zero ( ) indicators come
on, LOAD 1 will display.
7. Place the first calibration weight (1/3 of the capacity) on the platform. After the
stable ( ) and zero ( ) indicators come on, load 2 will display.
8. Place the next calibration weight (2/3 of the capacity) on the platform. After the
stable ( ) and zero ( ) indicators come on, load 3 will display.
9. Place the last calibration weight (full capacity) on the platform. After the stable
( ) and zero ( ) indicators come on, the balance will start self test and return to
normal weighing mode.
Zero
Zero
Zero
Mode
Mode
Mode
Mode
Zero
Sample
Sample
Print
Tare
Zero
Print
Sample
Sample
Percent

12 Equipoise Series Technical Manual
5.0 Parameter Settings
5.1 Enter Parameter Settings
1. Press to turn the balance on.
2. Press during the self test to enter parameter settings mode.
3. Press to scroll to desired parameter.
4. Press to enter parameter and scroll through choices.
5. Press to change setting.
6. Press the screen will display EX F1.
7. Press to return to weighing mode.
5.2 Set Weighing Unit
Enter parameter settings (see Section 5.1 ).
1. At F1 unt, press to enter unit settings.
2. Press to set each unit to On/Off.
3. Press to advance to the next unit.
4. After all units have been set, press to return to weighing mode.
5.3 Set Backlight
Enter parameter settings (see Section 5.1 ).
1. At F2 El, press to enter backlight setting.
2. Press to select backlight mode. See Table 5-1 on page 14.
3. Press to accept.
4. Press to return to weighing mode.
When the battery is low, the backlight function is not available.
On/Off
Mode
Mode
Mode
Mode
Zero
Mode
Mode
Print
Print
Zero
Mode
Mode
Zero
Print
Zero
Mode
Mode
Zero
Print
Note

Communications 13
5.4 Communications
1. At F3 Con, press to enter the communications setting.
2. Press to modify the print setup. See Table 5-1 on page 14.
3. Press to accept the baud rate settings.
4. Press to toggle between choices.
5. Press to select printer.
6. Press to toggle between TP (tape printer) and LP-50 (not used).
7. Press to accept.
8. Press to return to the weighing mode.
Zero
Mode
Mode
Zero
Mode
Mode
Zero
Mode
Mode
Zero
Mode
Mode

14 Equipoise Series Technical Manual
Table 5-1. Parameter Settings
Menu Sub Menu Description
F1 unt g / ct / lb / oz / d / gn / ozt /
dwt / mm / tl.T / tl.c / tl.t / t,.
Each unit can be set to on or off.
F2 el El au On When weight is on the pan, the backlight
will turn on.
Off
El on On Backlight is always on when the balance is
turned on.
Off
El off On Backlight is always off when the balance is
turned on.
Off
F3 com P prt By pressing the Print key, the weighing
value will be added to the memory and
sent to the printer if connected.
P cont Sends data continuously.
P auto Automatic accumulation — Individual
weighing values are automatically added.
Set BAUD rate:
After setting the RS-232 mode, the display will be shown with the current
baud rate b XXX.
Baud rate Options: b600,b1200,b2400,b4800 and b9600
Set Printer type:
After setting the BAUD rate, the display will show the printer type.
Lp 50 Not available
Tp Ticket printer
F4 ACC ACC ON Turn on accumulation.
ACC OF Turn off accumulation.
tech pin Factory access only
P 1 lin Linear calibration
P 2 Cal Normal calibration
P 3 cnt xxxx This display will display XXXXX for
indicating the internal counts.
P 4 a 2n 0 .5 d Set auto zero
1 d
2 d
4 d
P 5 gra Xxxx Set local gravity

Specifications 15
6.0 RS-232 Output
6.1 Specifications
• RS-232 output of weighing data
• ASCII code
• 600~9600 baud
• 8 data bits
• No parity
6.2 RS-232 (9-pin D Type Connector)
Table 6-1. 9-Pin Connector Types
9-pin D Connector:
Table 6-2. Balance to Printer Connector
Continuous Output Protocol (Weighing Mode)
Table 6-3. Continuous Output Protocol
6.3 RS-232 Serial Commands
1. R= Send
2. T= Tare
3. Z= Zero
Pin Signal Description
Pin 2 RXD Input Receiving data
Pin 3 TXD Output Transmission data
Pin 5 GND -- Signal ground
Balance Computer / Printer
Pin 2: Pin 3
Pin 3: Pin 2
Pin 5: Pin 5
ST ,GS-/ kgCRLF
Header 1 Header 2 Weight Data Weight
Unit
Te r m i n a t o r

16 Equipoise Series Technical Manual
7.0 Maintenance
7.1 General
Use the following instructions to complete general maintenance on the Equipoise balance.
7.1.1 Balance Does Not Operate Properly
Determine whether the problem is constant or alternate. Be aware that problems can be
caused by mechanical or electrical influences.
Check for the following:
• Water
• Corrosive materials
• Vibrations, temperature or wind
• Physical damage
Check the balance cables for damage. Check all connections and connectors for any loose
contact or incorrect connection.
7.1.2 Cleaning
Use the following instructions to clean the Equipoise:
• Disconnect the power before cleaning.
• Use a clean and soft cloth with mild cleaning agents.
• Make sure that the fluid is not able get into the device.