BTEK HRB User manual

HRB
Bench Scales
Installation Instructions
AWT35-100028
Issue AA

HRB_base_i_en_100028.book
Copyright © 2020 B-TEK. All rights reserved.

HRB Bench Scale Installation Instructions 3
Table of Contents
page
Table of Contents ...................................................................................................................................... 3
Chapter 1 General information and warnings ......................................................................................... 5
About this manual .............................................................................................................. 5
Special messages ....................................................................................................... 5
Routine maintenance ......................................................................................................... 5
Cleaning the machine ........................................................................................................ 6
Training .............................................................................................................................. 6
FCC and EMC declarations of compliance ........................................................................ 6
Chapter 2 Introduction and installation ................................................................................................... 7
Unpacking and installation ................................................................................................. 8
Removing the shipping stops ...................................................................................... 8
Leveling the scale ........................................................................................................ 9
Removing the handles ....................................................................................................... 9
Chapter 3 Connections ........................................................................................................................... 10
Base Communications setting ......................................................................................... 11
Base configuration ........................................................................................................... 11
Chapter 4 Option installation .................................................................................................................. 13
Draft shield option ............................................................................................................ 13
Underhook option ............................................................................................................. 16
Column option .................................................................................................................. 18

4 HRB Bench Scale Installation Instructions

HRB Service Manual 5
1.1 About this manual
1 General information and warnings
1.1 About this manual
This manual is divided into chapters by the chapter number and the large text at the top
of a page. Subsections are labeled using the 1.1 and 1.1.1 convention. The names of
the chapter and the next subsection level appear at the top of alternating pages of the
manual to remind you of where you are in the manual. The manual name and page
numbers appear at the bottom of the pages.
1.1.1 Special messages
Examples of special messages you will see in this manual are defined below. The
heading words have specific meanings to alert you to additional information or the
relative level of hazard.
Installations within Europe must use a socket which provides a minimum of IP56
protection to the plug / cable assembly. Care must be taken to make sure that the
degree of protection provided by the socket is suitable for the environment.
1.2 Routine maintenance
Always disconnect the interface cable from the indicator before starting any routine
maintenance to avoid the possibility of electric shock.
CAUTION!
This is a Caution symbol.
Cautions give information about procedures that, if not observed, could result
in damage to equipment or corruption to and loss of data.
NOTE: This is a Note symbol. Notes give additional and important information, hints
and tips that help you to use your product.
IMPORTANT: This equipment must be routinely checked for proper operation
and calibration.
Application and usage will determine the frequency of calibration required for
safe operation.

6 HRB Service Manual
1 General information and warnings
1.3 Cleaning the machine
1.4 Training
Do not attempt to operate or complete any procedure on a machine unless you have
received the appropriate training or read the instruction books.
To avoid the risk of RSI (Repetitive Strain Injury), place the machine on a surface which
is ergonomically satisfactory to the user. Take frequent breaks during prolonged usage.
1.5 FCC and EMC declarations of compliance
United States
Canada
Table 1.1 Cleaning DOs and DON’Ts
DO DO NOT
Wipe down the outside of standard products
with a clean cloth, moistened with water and
a small amount of mild detergent
Attempt to clean the inside of the machine
Use harsh abrasives, solvents, scouring cleaners or
alkaline cleaning solutions
Spray the cloth when using a proprietary
cleaning fluid
Spray any liquid directly on to the display windows
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in
accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a
residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own
expense.
This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set out in the Radio
Interference Regulations of the Canadian Department of Communications.
Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques de
la Classe A prescrites dans le Règlement sur le brouillage radioélectrique edicté par le ministère des Communications du Canada.

HRB Bench Scale Installation Instructions 7
2 Introduction and installation
This installation guide will show the basics of connection and setup of the HRB base
bench scales shown in Figure 2.1.
Figure 2.1 HRB large and small capacity bench scale bases
The HRB base uses a family of digital load cells. The bases are constructed of die cast
aluminum, with stainless steel load-receiving platters. The 35kg and 80kg bases have
a rectangular stainless steel platter of the same dimensions as the base. The 1 and 5kg
models have a round weight platter six inches in diameter. The optional draft shield for
the low capacity bases (1kg and 5kg) is shown in Figure 2.1.
Base size (inch / cm) Platter size (inch / cm) Scale capacity
9 x 12 / 22.8 x 30.5 6 / 15.2 1kg
9 x 12 / 22.8 x 30.5 6 / 15.2 5kg
9 x 12 / 22.8 x 30.5 9 x 12 / 22.8 x 30.5 35kg
12 x14 / 30.5 x 35.5 12 x14 / 30.5 x 35.5 35kg
12 x14 / 30.5 x 35.5 12 x14 / 30.5 x 35.5 80kg

8 HRB Bench Scale Installation Instructions
Introduction and installation
2.1 Unpacking and installation
Unpack the scale and check for any damage. Report damage to the shipping company
immediately.
2.1.1 Removing the shipping stops
Four colored shipping stops are installed under the platter of the 35 and 80kg HRB
scales at the factory. Before you begin weighing, be sure to remove these stops. Refer
to Figure 2.2.
Figure 2.2 Removing the shipping stops
Repeat these steps on all four corners. Save and re-use if shipping the scale becomes
necessary in the future.
The 1 and 5kg scales come with tubes taped in place under the scale platter. Remove
the tape and tubes before using.
Shipping stops shown taped in place.
Slide the stop down and
remove it from the slot. Keep
for future shipping.
Remove the tape and
slide the stop to the
nearest slot in the base
(pointed out in the photo
above).

HRB Bench Scale Installation Instructions 9
2.2 Removing the handles
2.1.2 Leveling the scale
Place the scale on a level, stable surface free from vibrations or strong air currents.
Level the scale using adjustable feet and the bubble level located on the side of the
base. Turn the appropriate foot or feet until the bubble is centered and then lock the
feet in place by turning the locking collar snugly up against the scale body.
See Figure 2.3.
Figure 2.3 Leveling foot and bubble level
2.2 Removing the handles
If the need to remove the handles on the HRB base arises, follow these steps.
locking collar
leveling foot
Bubble level (located on the
side of the scale)
Press the left side of the
handle towards the center
line of the scale to release
the small spindle from the
scale base.
Pull the handle to the left to
remove the right side
spindle from the body of the
HRB.
Repeat both steps for the
other handle.

10 HRB Bench Scale Installation Instructions
Connections
3 Connections
The HRB connections are shown in Figure 3.1.
Figure 3.1 HRB connections
The back panel of the HRB base has three connections available. Only the Scale
connection is needed to connect to a compatible indicator. The Power and USB
connections are not required for normal operation.
Below is the wiring information for the HRB to indicators, (only applies to indicators that
support multi-base input):
WARNING: The scale connection is an RS232 port only. Do not plug the base
into an Ethernet port as this may damage the Ethernet hub.
Power connection
Scale
connection
See WARNING
below.
USB connection
HRB back panel
In the table below, connections to TB3 show use of the indicator Serial Port 1. If using
Serial Port 2, then use pin 3 for RX_BASE and pin 5 for TX_BASE.
HRB to T Series Indicator Wiring List
RJ45 Connector Color Termination Function
Pin 1 WHITE/ORANGE TB3-1 GROUND
Pin 8 BROWN TB3-1 GROUND
Pin 6 GREEN TB3-2 RX_BASE
Pin 3 WHITE/GREEN TB3-4 TX_BASE
Pin 7 WHITE/BROWN TB3-6 +5V
Pin 5 WHITE/BLUE TB3-6 +5V

HRB Bench Scale Installation Instructions 11
3.1 Base Communications setting
The HRB base has to be linked to an approved high end indicator. It uses one of the
dedicated RS232 channels to correctly communicate to the base.
Use one of the dedicated RS232 base to indicator cables as listed below
AWT25-501983 RS232 Base to indicator cable (keyed RJ45 to striped end) 10ft
AWT25-502071 RS232 Base to indicator cable (keyed RJ45 to striped end) 25ft
AWT25-502072 RS232 Base to indicator cable (keyed RJ45 to striped end) 50ft
These cables have the correct keyed RJ45 connector. Pictured below are the cable
ends ready for connection to the HRB and indicator.
3.1 Base Communications setting
Baud rate: 115200
Data bits: 8
Party: None
Stop Bits: 1
3.2 Base configuration
All base configuration will be found within the indicator, please refer to the indicator
service manual or HRB to indicator tech guides for base setup and calibration.
BROWN
WHITE/BROWN
GREEN
WHITE/BLUE
BLUE
WHITE/GREEN
ORANGE
WHITE/ORANGE
Keyed RJ45 Connector
Key

HRB Bench Scale Installation Instructions 13
4.1 Draft shield option
4 Option installation
4.1 Draft shield option
These instructions cover the installation of the HRB draft shield kit, AWT05-508040.
The kit consists of the parts shown below. A 5/32” hex wrench is also included.
1. Start by removing the four corner screws with a 5/32” Allen wrench. Use the
same screws to attach the pillars. The top of the corner posts will be curved
outward. This bow has been designed into the posts to provide tension on the
sliding panels as they operate.
2. Peel the protective paper off the side panels and attach a knob to each panel
with the screw and plastic spacer as shown below.
Side
plates
Side
plates
Top
plate
Hardware
Corner
posts Knobs
Knob screws with
nylon spacers
Top plate
screws
Hardware closeup

14 HRB Bench Scale Installation Instructions
Option installation
3. Slide the panels into the slots on all four sides. Because of the built-in curve of
the corner posts, the panels will probably only slide into the slot in the lower
section of the post. This is normal.
4. Place the top panel in place. Be sure the pairs of alignment pegs in all four
posts engages into the holes in the top panel.
5. Use a Phillips screwdriver and attach the top plate to the corner post using the
four remaining screws.
The draft shield is now complete. Each panel can slide up until the nylon spacer snaps
into the small catch on the top plate.

HRB Bench Scale Installation Instructions 15
4.1 Draft shield option
6. After installation, it is recommended that the doors be wiped with a damp cloth
to get rid of any static build-up that can occur during installation. If static build-
up occurs in the future, they can be sprayed with an anti-static spray or wiped
down with a damp cloth.

16 HRB Bench Scale Installation Instructions
Option installation
4.2 Underhook option
These instructions cover the installation of the HRB underhook kit, AWT05-507965.
1. Assemble the parts to look like this final assembly.
2. Remove the round platter from the top of the scale and turn the scale on its
side.
3. Use one or two small screwdrivers to pry off the two plastic caps indicated by
the arrows above. The second photo shows them both removed.
4. Place the underhook assembly through the two holes in the base of the scale.
Tools needed:
l1/4” open end wrench to tighten long standoffs
lPhillips screwdriver
l11/32” nut driver
lsmall straight blade screwdriver(s)
Note that there is a nut that is installed above the hook.
This can be tightened against the top of the hook to lock it
on the screw and allow the hook to swivel.

HRB Bench Scale Installation Instructions 17
4.2 Underhook option
5. Use the Phillips screwdriver and the two small screws to attach the underhook
assembly to the two holes in the support pan. It is easier to get the top screw
started first and then attach the bottom leg.
6. Tighten both screws. These photos show the finished assembly, the left one
with the base on its side and the other under the base as it will be used for
weighing operations using the underhook.

18 HRB Bench Scale Installation Instructions
Option installation
4.3 Column option
These instructions cover the installation of the HRB Column kits, AWT05-508878 (tall
column) and AWT05-508879 (short column). Installation for both column sizes is
identical.
Parts in the kit include the column, three screws and two adjustable feet.
To install the column, follow these steps:
1. Lay the HRB and the column on their sides as shown in the photo below. Run
the interface cable from the indicator through the hole in the base of the column
and plug it into the proper scale connector.
2. Place the base of the column under the bottom of the base and line up the
three holes in the column bracket to the holes in the base. Install all three
screws and tighten. Note that the holes in the base do not have threads.
The screws will cut their own threads as they are installed.
When working on a 1 or 5kg scale,
be sure you do not set the scale
on the load platter or damage to
the load cell could occur.

HRB Bench Scale Installation Instructions 19
4.3 Column option
3. Install the support feet.
4. Set the scale on a flat surface and adjust the feet downward until they contact
the table surface. Be sure they do not change the level of the scale. They
should just support the column without lifting it.

B-TEK Scales, LLC
1510 Metric Ave. SW
Canton, OH 44706-3088