Rice Lake BenchPro BP-P User manual

BenchPro™
BP-P Postal Bench Scale
Operation Manual
PN 180557 Rev EJuly 22, 2020

An ISO 9001 registered company
© Rice Lake Weighing Systems. All rights reserved.
Rice Lake Weighing Systems® is a registered trademark of
Rice Lake Weighing Systems.
All other brand or product names within this publication are trademarks or
registered trademarks of their respective companies.
All information contained within this publication is, to the best of our knowledge, complete and
accurate at the time of publication. Rice Lake Weighing Systems reserves the right to make
changes to the technology, features, specifications and design of the equipment without notice.
The most current version of this publication, software, firmware and all other product
updates can be found on our website:
www.ricelake.com

Contents
© Rice Lake Weighing Systems ● All Rights Reserved i
Contents
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.
1.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2.0 Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.1 Unpacking the Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.2 Scale Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.2.1 Display Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.3 Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.4 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3.0 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.1 Keys and Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.1.1 Initial Power Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1.2 Weigh Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1.3 Tare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4.0 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.1 User Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.2 Service Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.2.1 Access Service Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.2.2 Configure Service Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.3 Gravity Mode Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.0 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.1 Span Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.2 Linear Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6.0 Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.1 Scale to Computer Port Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.2 I/O Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.3 USB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.4 Interface Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.4.1 NCI General Serial Communications Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.4.2 SMA Interface Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.5 Sealing Scale for Weights and Measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6.5.1 Seal Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7.0 Maintenance and Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.1 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.1.1 Diagnostics Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.1.2 Power Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.2 Load Cell Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
8.0 Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
9.0 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
9.1 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
9.1.1 BenchPro Postal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
9.2 Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
9.2.1 Column Bracket and Post Option (PN 174783) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
9.2.2 Tabletop Display Post Option (PN 183103) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
9.2.3 Customer Display Option (PN 180901) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
9.2.4 Second Operator Display Option (PN 174784) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

BenchPro Postal BP-P Scale
ii Visit our website www.RiceLake.com
Rice Lake continually offers web-based video training on a growing selection
of product-related topics at no cost. Visit www.ricelake.com/webinars

Introduction
© Rice Lake Weighing Systems ● All Rights Reserved 1
1.0 Introduction
This manual provides information needed to set up and use the BenchPro™ Postal scale.
Manuals and additional resources are available 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 Signal Definitions:
Indicates an imminently hazardous situation that, if not avoided, will result in death or serious injury. Includes
hazards that are exposed when guards are removed.
Indicates a potentially hazardous situation that, if not avoided, could result in serious injury or death. Includes
hazards that are exposed when guards are removed.
Indicates a potentially hazardous situation that, if not avoided, could result in minor or moderate injury.
Indicates information about procedures that, if not observed, could result in damage to equipment or corruption
to and loss of data.
General Safety
Do not operate or work on this equipment unless this manual has been read and all instructions are understood.
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.
Failure to heed could result in serious injury or death.
Ensure every individual operating or working with this unit has read and understands the following safety information.
Do not allow minors (children) or inexperienced persons to operate this scale.
Prior to cleaning, make sure the scale is disconnected from the power source.
Do not use this product if any of the components are loose or cracked.
Do not use in the presence of flammable materials.
Operating at voltages and frequencies other than specified could damage the equipment.
Do not use near water and avoid contact with excessive moisture.
Do not drop the scale or subject it to violent shocks.
Do not make alterations or modifications to the scale.
For accurate weighing, the scale must be placed on a stable, level surface.
DANGER
WARNING
CAUTION
IMPORTANT
WARNING

BenchPro Postal BP-P Scale
2 Visit our website www.RiceLake.com
2.0 Setup
This section provides information regarding the setup of the BenchPro Postal scale.
2.1 Unpacking the Scale
Remove all contents from the packaging. Inspect contents for damage. Contact Rice Lake Weighing Systems and the shipper
immediately if items are damaged. Each carton contains the following:
• Scale with operator display attached
• In-line power supply
• U.S. power cord (three-prong AC power adapter)
• USB cable
• RS-232 cable
• Stainless steel weigh platter
2.2 Scale Setup
1. Remove the protective cover from the weigh platter.
2. Place the scale on a sturdy, level surface near a power outlet. Ensure the scale and weigh platter are clear of
obstructions.
3. Level the scale by adjusting the leveling feet until the bubble level (under the weigh platter) is within the circle.
4. Tighten the jam nuts on the feet of the scale, once the scale is level.
2.2.1 Display Mounting
A display mount is included with each scale and comes assembled to the scale’s die-cast base housing. The included operator
display uses two magnets to attach to the mount during use. The display mount can be detached from the scale and mounted
to a table or on a wall.
Figure 2-1. Display Mount Configurations
Scale or Table Mount
Orientation
Wall Mount
Orientation

Setup
© Rice Lake Weighing Systems ● All Rights Reserved 3
2.3 Power
Power the unit with one of the following sources:
• AC power supply
• USB HID 2.0 powered communications port (can be used as a stand alone device or interfaced to a third-party software
program which recognizes devices following USB HID requirements)
• Four AA alkaline batteries (not included)
Figure 2-2. BP-P Top View with Weigh Platter Removed
Once the scale is connected to a power source, the power LED illuminates. Press to power on the scale.
2.4 Connections
The USB connection can be used as an HID device or USB power supply. The scale is equipped with a standard bi-directional
RS-232 port for connection to a PC.
Figure 2-3. Junction Box Connections – Back Of Unit
Battery Compartment Screw
Power LED
Adapter RS-232 USB Display

BenchPro Postal BP-P Scale
4 Visit our website www.RiceLake.com
3.0 Operation
This section provides information regarding the operation of the BenchPro Postal scale.
3.1 Keys and Symbols
Figure 3-1. Operator Display
Figure 3-2. Bench Pro Postal Unit Measurement Ranges
Item No. Key Description
1 Units Button – Toggle between configured weight units; Enter or accept the value selected
2 Power/Zero Button – Quick press to turn the unit on
• Press and hold for three seconds to turn the unit off
• Perform a zero function
3 F1 Button – Press F1 and Units to enter the user menu and non Legal for Trade configuration
parameters of the scale (Section 4.1 on page 6); Used as Print (if enabled); Press to Scroll right
4 Tare Button – Perform a tare function (if enabled); Press Scroll left
NOTE: Enabling tare could violate metrological approvals.
Table 3-1. Display Key and Annunciator Functions
Item No. Description
5 Model dependent:
• lb/oz scale is dual range and utilizes W1 and W2
• kg scale is triple range and utilizes W1, W2 and W3
The annunciator is showing which range/resolution is used for weighment
6 Units of Measure – Indicates the unit of measure the scale is displaying
7 Stable Zero – Indicates the scale is at a stable zero weight value
8 Gross/Brutto – Indicates the scale is in gross mode
9 Net – Indicates a tare condition and the net weight is displayed
10 Power LED – Indicates scale is receiving power
Table 3-2. Display Key and Annunciator Functions
1 2
34
6
7
8
9
5
10
Postal Scale: 0-7 lb x 0.05 oz / 7-70 lb x 0.2 oz
For reference only:
Capacity marking
changes based on
capacity of the scale
lb oz

Operation
© Rice Lake Weighing Systems ● All Rights Reserved 5
3.1.1 Initial Power Up
Press to power on the scale.
Upon initial power up, the scale briefly displays the following:
•  (type of firmware installed)
• Software version number
• 
See Section 7.1 on page 22 if another message other than  displays during startup.
3.1.2 Weigh Mode
1. Ensure the scale is at zero prior to placing an item on the scale.
2. If the scale is not at zero weight, press . indicates the scale is at a stable zero.
3.1.3 Tare
Tare function must be enabled in the configuration menu for the tare key to be functional. The factory default setting is disabled.
1. Place an item or empty container on the scale. The weight value displays.
2. Press . The weight value displays as zero and N displays to indicate the scale is displaying the net weight.
3. Remove the item or container from the scale platform and press to return the scale to the gross mode.
The weight value is zero and G/B displays, indicating the scale has returned to the Gross/Brutto mode.
Enabling tare could violate metrological approvals.
Note
0
Note

BenchPro Postal BP-P Scale
6 Visit our website www.RiceLake.com
4.0 Configuration
This section provides information regarding the configuration of the BenchPro Postal scale.
4.1 User Menu
The user menu provides the configuration settings for non Legal for Trade parameters.
To enter the user settings menu:
1. Press and at the same time
2. To navigate the user settings menu:
3. Press to scroll through the parameters and settings
4. Press to accept the value selected
5. Once all parameters have been set, navigate to the  parameter and press to confirm and save settings
See Section 4.2.2 on page 8 for additional explanation on parameters and settings available.
Default settings in are stated in bold (Table 4-1).
Parameter Options Definition
 OFF 1, OFF 3, OFF 5, OFF 30, OFF Auto Off Time Setting
 Auto, OFF, On Backlight Setting
 SMA, Auto-1, Auto-2, Print, NCi Protocol
 9600, 19200, 38400, 57600, 1200, 2400, 4800 Baud rate
 8 none, 7 even, 7 odd, 7 none Parity
 1, 2 Stop bits
 OFF, On Tare
 RAM, ROM, DIV-A, DIV-O Diagnostics
 — Done (exit)
Table 4-1. User Menu Parameters
Note
Note

Configuration
© Rice Lake Weighing Systems ● All Rights Reserved 7
4.2 Service Menu
The service menu provides the configuration settings for all of the parameters and access to perform calibration.
4.2.1 Access Service Menu
1. Press to power on the unit.
2. Lift the weigh platter from the scale.
 displays.
3. Remove the 8 mm hex screw and open the PCB compartment.
Figure 4-1. BP-P Top View with Weigh Platter Removed
4. Press the Setup Switch.
5. Configure all service parameters (Section 4.2.2 on page 8).
6. Press once all parameters have been set  displays.
7. Press to exit and save changes.
8. Set the PCB compartment door back in place and reinstall the hex screw to secure it.
9. Place the weigh platter back onto the scale.
Hex Screw Setup Switch

BenchPro Postal BP-P Scale
8 Visit our website www.RiceLake.com
4.2.2 Configure Service Parameters
To navigate the service setting menu:
• Press to scroll through the parameters and settings
• Press to select a parameter
• Press to return to the previous parameter
• Once all parameters have been set, navigate to the done parameter and press to confirm and save settings
Figure 4-2. Service Menu Parameters
Parameter Description
 Semi Automatic Zero Set – The percentage of the scale capacity which can be zeroed from the scale when the zero key is pressed;
Settings: 2%, 5%, 10%, 20%

Initial Power up Zero Setting – The percentage of the scale capacity that can be zeroed from the scale on power up; Settings: 10%, 20%, 50%
 Zero Indication – settings: OFF, ON
 Automatic Zero Tracking – Automatically zeroes the scale if scale does not return to zero; The zero tracking is ± the display division,
multiplied by the selected setting, but cannot exceed the semi-automatic zero set; Settings: 0.25 d, 0.5 d, 1 d, 2 d, 3 d
 Filter – Minimizes the effect mechanical vibration (near the scale) can have on scale readings; The selected setting has a direct correlation to
the display update rate; Settings:
• Med - normal filtering, average update rate
• Hi - more filtering, slower update rate
• Lo - less filtering, faster update rate
 Manufacturing mode only; Do not use; Do not adjust; Settings: OFF, ON

Auto Off (only applies to battery powered BP-P 12 x 14 scale) – Select amount of time of inactivity after which scale automatically powers off; Settings:
• Off 1 – off after 1 minute of no use
• Off 3 – off after 3 minutes of no use
• Off 5 – off after 5 minutes of no use
• Off 30 – off after 30 seconds of no use
• Off – scale does not turn off
NOTE:  configured earlier.
Table 4-2. Service Menu Parameter Settings
]HURE SX]HUR ]LQG D]W IL/W $  R)) 3URW 3UWRYW %DXGEDK/HG  QRG
3DU 6WRS WDUH *UDY VY &DS &D/ GLDJ GRQHVS/LWXPLWV
]3FW
3FW
3FW
3FW
3FW
3FW
3FW
2II
2Q   G
G
G
G
  G
UQ*
LQWY/
UQ*
LQWY/
2II
2Q
Q2QH
HYHQ
2GG
Q2QH

 2Q
2II P2
<HV
+L
/R
2Q
2IIQHG
2II
2II
2II
2II
2II
DYWR
2II
2Q
QFL
$YWR
VQD
$YWR
3ULQW
YY/I
YY
/I

/IYY
/)YY/I
/I/I
/I







2II
2Q
/E /E2] 2] K* *U
/E
K*
&=HUR
&VSDQ
&/LQ
UDQ
U2Q
GLY$
GLY2
Appears if 3URW
is set to $YWR,
$YWR or 3ULQW
2II
2Q2Q
2))2II
2Q2Q
2II 2II
2Q
The lb model of the BenchPro Postal scale a has default unit of
measurements is lb:oz. The kg model of the BenchPro Postal
scale has a default unit of measure of kg. All default units of
measurement are set to On by default while all of the non-default
unit of measurement settings are set to Off by default.

Configuration
© Rice Lake Weighing Systems ● All Rights Reserved 9
 Backlight Shutdown (only applies to battery powered BP-P 12 x 14 scale) – Conserves battery life; Select the amount of time of inactivity
after which the backlight shuts off; Settings:
• AUTO – off after 5 seconds no activity
• OFF – always off
• ON – always on
 Protocol – Determines manufacturer output protocol or serial setting the scale is configured for; Check third party software to confirm correct
selection; Settings:
• SMA – Interface Protocol (Section 6.4.2 on page 18)
• Auto-1 – Automatically transmit after stable weight above zero is removed from the scale platform
• Auto-2 – Automatically transmit when the item is placed on the scale and the weight stabilizes
• Print – Weight is transmitted only when the F1 button on the display panel is pressed
• NCI – General Serial Communications Protocol (782X and 76XX family) (Section 6.4.1 on page 16)
NOTE: If the scale is connected to a PC via the BenchPro USB port, the USB HID protocol is automatically selected; USB HID
settings are 1C19,0002.

Print Out – displays if  is set to ,  or 
Where: <LF> represents the line feed character (ØA hex)
W represents a weight digit character
uu represents the unit of measure characters (lb)
<CR> represents the carriage return character (ØD hex)
 Baud Rate – For RS-232 connection to PC; Settings: 9600, 19200, 38400, 57600, 1200, 2400, 4800
 Data Bits and Parity – For RS-232 connection to PC; Settings: 8 none, 7 even, 7 odd, 7 none
 Stop bits – For RS-232 connection to PC; Settings: 1, 2
 Enable or disable the tare button; Settings: OFF, ON;
NOTE: Enabling tare could violate metrological approvals.
 Gravity Compensation – See Section 4.3 on page 10 for detailed information; Settings:
• No – Deactivated, calibrate scale with known accurate calibration weights
• Yes – View original calibration gravity and modify local gravity settings
 Manufacturing mode only; Do not use; Do not adjust; Settings: OFF, ON
 Units of Measure – turn on and off units of measure; applicable settings are dependent on the model of scale purchased; most models have
a minimum of two units of measure turned on; to avoid incorrect weight being displayed or transmitted to the PC, only have the applicable
units of measure turned on; settings: lb, lb:oz, oz, kg, g
 Capacity – defines the maximum capacity of the scale and determines the weight value to be used:
• When selecting lb, the calibration weight used must be in lb
• When selecting kg, the calibration weight used must be in kilograms
NOTE: Do not select capacities other than those indicated by the manufacturer.
 Configures the unit for multi-range or multi-interval on select models; Settings:
• Off – Unit displays in single range, 2rnG, 2intvL, 3rnG, 3intvL
Divisions (multi-range) – Follows gross weight and whatever the largest value count-by/display division you reach that is what the scale
locks on and uses until the scale goes back to zero and resets; Range uses the W1, W2, W3 annunciators
• kg Triple Range – 0-5kg x 0.001kg, 0-10kg x 0.002kg, 0-35kg x 0.01kg
• lb/oz Dual Range – 0-7lb x 0.05oz, 0-70lb x 0.2oz
Divisions (multi-interval) – Follows net weight and uses the applicable count-by/display division based on the weight on the scale
• kg Triple Interval – 0-5kg x 0.001kg, 5-10kg x 0.002kg, 10-35kg x 0.01kg
• lb/oz Dual Interval – 0-7lb x 0.05oz, 7-70lb x 0.2oz
NOTE: For factory use only.
 Calibration – See Section 5.0 on page 11 for detailed information
NOTE: To exit the calibration () parameter without saving changes, the unit must be powered off.
 Diagnostic menu – used to troubleshoot scale operation; See Section 7.1 on page 22 for more information; Settings:
• RAM –  displays if functioning properly; If anything else displays, contact RLWS for a new PCB
• ROM –  displays if functioning properly; If anything else displays, contact RLWS for a new PCB
• div-A – Display internal counts after auto zero tracking
• div-O – Display internal counts
 Done – exit the configuration menu, save settings and return to weigh mode
Parameter Description
Table 4-2. Service Menu Parameter Settings (Continued)
Output Data String Settings
Setting Formatted Output Data String
LFuuLF <LF> WWW.WW uu <CR> <LF>
LFuu-- <LF> WWW.WW uu <CR> --
LF- -LF <LF> WWW.WW -- <CR> <LF>
LF- --- <LF> WWW.WW -- <CR> --
-- uuLF -- WWW.WW uu <CR> <LF>
--uu-- -- WWW.WW uu <CR> --
-- - -LF -- WWW.WW -- <CR> <LF>
-- - --- -- WWW.WW -- <CR> --

BenchPro Postal BP-P Scale
10 Visit our website www.RiceLake.com
4.3 Gravity Mode Setting
Gravitational variations may affect the accuracy of the BenchPro scale upon initial installation. The scale includes a feature
which allows for adjustment of the gravity setting to the location and reducing the need for an initial calibration pending
regulatory requirements in the region.
The BenchPro is a Legal for Trade device. Rice Lake Weighing Systems recommends contacting an authorized scale
technician to perform a calibration using certified test weights.
Gravity compensation must be turned off when calibrating the scale with weights.
The factory default values are:
• Original Calibration Gravity Constant Setting: 9.7951 or 9.8056
• Local Calibration Gravity Constant Setting: 9.8056 (Rice Lake, Wisconsin)
The original calibration gravity constant is the location the test weights were placed on the scale to calibrate it.
The local calibration gravity constant is the location the scale is to be used.
To determine the local calibration gravity constant, use the Internet to identify the local latitude and altitude. Type these values
into a gravity calculator to determine the local calibration gravity constant. The BenchPro uses four values to the left of the
decimal place and it may be necessary to round the values prior to input.
Use the following steps to modify the local gravity () constant setting.
1. See Section 4.2.1 on page 7 to access and configure parameters within the service menu.
2. Press until  displays.
3. Press to enter  parameter.  is the default.
4. Press to change it to  and then press . The original calibration gravity constant setting displays.
5. Press to accept. The local calibration gravity constant displays.
6. Press to increase the flashing digit.
7. Press to accept the value entered and move to the next digit.
8. Repeat Step 6 and Step 7 until the local calibration gravity constant is complete.
9. Press until  displays.
10. Press until  displays.
11. Press to accept and save the setting. The scale returns to weigh mode.
Below are links to websites used to determine local latitude and altitude. Please note these website address’s are provided for
reference only and may change.
National Geophysical Data Center: www.ngdc.noaa.gov.
Measurement Canada: www.ic.gc.ca.
Map Coordinates: www.mapcoordinates.net/.
Once local latitude and altitude have been determined, use the following link to calculate local gravity:
www.sensorsone.com/local-gravity-calculator/.
It is up to the authorized scale dealer to ensure the device is accurate at the intended point of use, especially for
Legal for Trade installations.
IMPORTANT
Note
IMPORTANT

Calibration
© Rice Lake Weighing Systems ● All Rights Reserved 11
5.0 Calibration
This section provides information regarding the calibration of the BenchPro Postal scale.
5.1 Span Calibration
The BenchPro allows for calibration with weight values other than max capacity. Table 5-1 displays the alternate calibration
weights for each model.
Calibration should only be performed using certified tests weights and performed by the local scale distributor.
Turn off Gravity Compensation, see Section 4.3 on page 10 prior to performing a calibration using certified weights.
The default capacity () setting is in lb if using the lb scale, otherwise the default capacity setting is in kg if using
kg calibration weights, change the  to the appropriate scale capacity of the scale model. The model number of the
scale is located on the serial tag on the bottom of the scale.
1. See Section 4.2.1 on page 7 to access service menu.  displays.
2. Press until  displays.
3. Press to accept.  or  displays.
4. Press to scroll to .
5. Press to accept.  displays.
6. Press until  displays.
See Section 4.3 on page 10 to set Gravity Compensation () values if required.
7. Select the appropriate scale capacity from Table 5-1.
8. Press to scroll to chosen capacity.
9. Press to accept.  displays.
10. Press until  displays.
11. Press to accept.  displays.
12. With no weight on the weight platter, press to accept. A six digit value displays.
This is the internal counts of the load cell at zero weight.
13. Press to accept and perform a zero calibration.  displays.
14. Press once.  displays.
15. Press to accept. XXX lb or XXX kg displays.
Model Scale Capacity Alternate Calibration Weights
12 x 14 70 kg 20, 50, 70 lb
12 x 14 35 kg 10, 20, 30 kg
Table 5-1. Alternate Calibration Weights
Note
Note

BenchPro Postal BP-P Scale
12 Visit our website www.RiceLake.com
16. Press to scroll to the alternate calibrate weight value, if performing a calibration using certified weights.
17. Press to accept.  displays.
18. Place the calibration weight on the scale and wait for the value to stabilize.
19. Press to accept. The calibration data is saved and the scale returns to the weigh mode.
The weight value displayed must match the value of the calibration weight used. If not, perform the calibration a second time
and follow each step carefully. If  displays, there is a calibration error. Ensure the correct calibration weight value was
selected in comparison to the actual calibration weight used. See Section 7.1 on page 22 for more information on
troubleshooting.
5.2 Linear Calibration
Only perform a linear calibration function if instructed by Rice lake Weighing Systems and an authorized scale
technician.
The BenchPro includes an optional linear calibration feature. This is an additional feature to perform after a span calibration has
been completed at maximum capacity and linear calibration is performed with two lower calibration weight values.
1. See Section 4.2.1 on page 7 to access service menu.  displays.
2. Press until  displays.
3. Press to accept.  or  displays.
4. Press until  displays.
5. Press to accept.  displays.
6. Press until  displays.
7. Press to enter  parameter.
8. To choose the appropriate scale capacity, see Table 5-1 on page 11.
9. Press to scroll to chosen capacity.
10. Press to accept. displays.
11. Press until  displays.
12. Press to enter  parameter.  displays.
13. With no weight on the platter, press to enter  parameter. The raw A/D counts for zero displays.
14. Press to calibrate zero.  displays.
15. Press until  displays.
16. Press to enter  parameter.  briefly displays, followed by the  weight value.
IMPORTANT

Calibration
© Rice Lake Weighing Systems ● All Rights Reserved 13
17. Press to select the  value (amount of test weight needed on scale for calibration of ).
18. Press to accept value.  displays.
19. Place the  weight on the weigh platter and wait for the value to stabilize.
20. Press to accept and calibrate at .
21. briefly displays, followed by the  weight value. Remove  test weights.
22. Press to select the  value (amount of test weight needed on scale for calibration of ).
23. Press to accept value.  displays.
24. Place the  calibration weight on the scale and wait for the value to stabilize (the raw A/D counts displays).
25. Press to accept and calibrate at . The calibration data is saved and the scale returns to weigh mode.
The weight value displayed must match the value of the calibration weight used. If not, perform the calibration a second time
and follow each step carefully. If  displays, there is a calibration error. Ensure the correct calibration weight value was
selected in comparison to the actual calibration weight used. See Section 7.1 on page 22 for more information on
troubleshooting.

BenchPro Postal BP-P Scale
14 Visit our website www.RiceLake.com
6.0 Communication
This section provides information regarding the connection of the BenchPro Postal scale.
6.1 Scale to Computer Port Connections
The BenchPro Postal scale can be connected to a computer using a compatible third party software program. In order for the
scale to transmit the weight, identify the interface protocol included in the third party program and compare with the BenchPro
Software Compatibility Chart, see Section 6.3 on page 15. The most current version of the compatibility chart can be found on
the Rice Lake Weighing Systems website.
6.2 I/O Specifications
The unit includes both a straight pass through RS-232 cable and USB Cable. For functional pin information, see Table 6-2:
Figure 6-1. RS-232 – 9-Pin Connector
Modem control lines are not supported. The scale is DTE.
Scale Com Port
DB-9 (9-pin) female connector
Powered USB 2.0 COM port (USB HID compatible software only)
DB-9 (9-pin) female connector RS-232/USB converter
Table 6-1. Communication Ports
DB-9 Male Host
Pin Name Direction
1 DCD IN --
2 RXD IN
3 TXD OUT
4 DTR OUT
5 GRND --
6 DSR IN
7 TRS OUT
8 CTS IN
9 OUT OUT
Table 6-2. DB-9 Male Host on Computer
Pin Name
1 --
2 TXD
3 RXD
4 --
5 GRND
6 --
7 CRS
8 RTS
9 --
Table 6-3. RS-232 Pin Out (9-Pin) On Scale
Pin 1 Pin 5
Pin 6 Pin 9
Note

Communication
© Rice Lake Weighing Systems ● All Rights Reserved 15
6.3 USB
The BenchPro Postal scales conform to the USB HID Point of Sale Usage Tables, March 5 2001, Version 1.02. Reference
www.usb.org, HID Information at www.usb.org/hid
Make sure the computer software has a USB HID scale interface. After plugging into the USB port, turn the scale on. The
following is displayed.
Figure 6-2. USB Driver Install
When the driver is installed, using Device Manager, the BenchPro will be identified as a HID-compliant device.
Figure 6-3. Device Properties
Once the Windows® driver has been found, the device is ready for use.
USB Specs
• Vendor ID = 1C19
• Product ID = 0002
Model Interface Protocols
•SMA, Auto-1, Auto-2, Print, NCI, USB Hid (USB port only)
PB3500 or BenchPro
PB3500 or BenchPro

BenchPro Postal BP-P Scale
16 Visit our website www.RiceLake.com
6.4 Interface Protocols
6.4.1 NCI General Serial Communications Protocol
Command W<CR> (57h,0dh)
Over capacity
(invalid data)
<LF> ^ ^ ^ ^ ^ ^ ^ ^ <U> <U> <CR> <LF> <H1> <H2> <CR> <ETX
>
Under capacity
(-20d)
<LF> – – – – – – – – <U> <U> <CR> <LF> <H1> <H2> <CR> <ETX
>
Zero point error
(Initial Zero)
<LF> – – – – – – – – <U> <U> <CR> <LF> <H1> <H2> <CR> <ETX
>
In lb/oz/kg/g
(normal data)
<LF> <p> <W> . <W> <W> <W> <W> <U> <U> <CR> <LF> <H1> <H2> <CR> <ETX
>
In lb/oz/kg/g <LF> <p> <W> <W> . <W> <W> <W> <U> <U> <CR> <LF> <H1> <H2> <CR> <ETX
>
In lb/oz/kg/g <LF> <p> <W> <W> <W> . <W> <W> <U> <U> <CR> <LF> <H1> <H2> <CR> <ETX
>
In lb/oz/kg/g <LF> <p> <W> <W> <W> <W> . <W> <U> <U> <CR> <LF> <H1> <H2> <CR> <ETX
>
In lb/oz/kg/g <LF> <p> <sp> <W> <W> <W> <W> <W> <U> <U> <CR> <LF> <H1> <H2> <CR> <ETX
>
In lb:oz <LF> <p> <W> l b <sp> <W> <W> . <W> <W> o z <CR> <LF> <H1> <H2> <CR> <ETX
>
In lb:oz <LF> <p> <W> <W> l b <sp> <W> <W> . <W> o z <CR> <LF> <H1> <H2> <CR> <ETX
>
In lb:oz <LF> <p> <sp> <W> <W> <W> l b <sp> <W> <W> o z <CR> <LF> <H1> <H2> <CR> <ETX
>
Table 6-4. Request Displayed Weight
Command H<CR> (48h,0dh)
Over Capacity
(Invalid Data)
<LF
>
^ ^ ^ ^ ^ ^ ^ ^ <U> <U> <CR> <LF> <H1> <H2> <CR> <ETX
>
Under Capac-
ity
<LF
>
– – – – – – – – <U> <U> <CR> <LF> <H1> <H2> <CR> <ETX
>
Zero Point
Error
<LF
>
– – – – – – – – <U> <U> <CR> <LF> <H1> <H2> <CR> <ETX
>
In lb/oz/kg/g
(Normal Data)
<LF
>
<p
>
<W
>
. <W> <W> <W> <W> <W> <U> <U> <CR> <LF> <H1> <H2> <CR> <ETX
>
In lb/oz/kg/g <LF
>
<p
>
<W
>
<W> . <W> <W> <W> <W> <U> <U> <CR> <LF> <H1> <H2> <CR> <ETX
>
In lb/oz/kg/g <LF
>
<p
>
<W
>
<W> <W> . <W> <W> <W> <U> <U> <CR> <LF> <H1> <H2> <CR> <ETX
>
In lb/oz/kg/g <LF
>
<p
>
<W
>
<W> <W> <W> . <W> <W> <U> <U> <CR> <LF> <H1> <H2> <CR> <ETX
>
In lb/oz/kg/g <LF
>
<p
>
<W
>
<W> <W> <W> <W> . <W> <U> <U> <CR> <LF> <H1> <H2> <CR> <ETX
>
In lb:oz <LF
>
<p
>
<W
>
l b <sp> <W> <W> . <W> <W> <W> o z <CR> <LF> <H1> <H2> <CR> <ETX
>
In lb:oz <LF
>
<p
>
<W
>
<W> l b <sp> <W> <W> . <W> <W> o z <CR> <LF> <H1> <H2> <CR> <ETX
>
In lb:oz <LF
>
<p
>
<W
>
<W> <W> l b <sp> <W> <W> . <W> o z <CR> <LF> <H1> <H2> <CR> <ETX
>
In lb:oz <LF
>
<p
>
<sp
>
<W> <W> <W> <W> l b <sp> <W> <W> o z <CR> <LF> <H1> <H2> <CR> <ETX
>
Table 6-5. Request High-Resolution Weight (10x)