A&D BM-5, BM-5D, BM-20, BM-22, BM-252 Instruction manual
...
Analytical Balance
BM-5
BM-5D
BM-20
BM-22
BM-252
BM-200
BM-300
BM-500
1WMP
D4002195F
© 2019 A&D Company , Limited. All rights reserved.
No part of this publication may be reproduced, transmitted, transcribed, or translated into any lang uage in
any form by any means without the written permission of A&D Company, Limited.
The contents of this manual and the specifications of the ins trument covered by this manual are subject to
change for improvement without notice.
Windows, Word and Excel are regi stered trademarks of Microsoft Corpora tion.
Contents
Basic Operation
Adapting to the Environment
Selecting Functions
1. Introduction .............................................................................................................................. 3
1.1. Features ............................................................................................................................... 4
1.2. Compliance .......................................................................................................................... 5
2. Unpacking the Balance ........................................................................................................... 6
3. Installi ng th e Bala nce and Prec auti ons ................................................................................... 9
3.1. Installi ng th e Bala nce ........................................................................................................... 9
3.2. Precautions Before Use ..................................................................................................... 12
3.3. Precautio ns D uri ng Us e ..................................................................................................... 14
3.4. Precautio ns After Use ........................................................................................................ 15
3.5. Precautio ns for P ower Su pply ........................................................................................... 15
4. Display Symbols and Key Oper ati on .................................................................................... 16
5. Weighing U ni ts ...................................................................................................................... 17
5.1. Units ................................................................................................................................... 17
5.2. Storing Active Units ............................................................................................................ 21
5.3. Selecting Uni t s and Weighing Modes ................................................................................ 22
6. Weighing................................................................................................................................ 24
6.1. Basic Operat ion (Gram Mode) .......................................................................................... 24
6.2. Smart Rang e ...................................................................................................................... 26
6.3. Counting Mode (PC) .......................................................................................................... 27
6.4. Percent Mode (%) .............................................................................................................. 29
6.5. Ionizer (Neutraliz ati on D ev ice) ........................................................................................... 30
6.6. Monitoring the Clock and Environment al S ensor s ............................................................ 32
6.7. Repeatability T est ............................................................................................................... 33
7. Response Adj ustment ........................................................................................................... 34
7.1. Automatic Response Adjus tment ...................................................................................... 34
7.2. Manual Response Adjust ment ........................................................................................... 35
8. Calibration ............................................................................................................................. 36
8.1. Calibration Group ............................................................................................................... 36
8.2. Automatic Se lf Cali br ation ................................................................................................. 37
8.3. Calibratio n U sing t he Int ern al M as s ................................................................................... 38
8.4. Calibratio n Test Using the I nter nal Ma ss ........................................................................... 39
8.5. Calibratio n U sing a n Ext ern al Weight ................................................................................ 40
8.6. Calibratio n Test Using an External Weig ht ........................................................................ 41
8.7. Correcting the In tern al Mass Value ................................................................................... 42
9. Function Switch and Initialization .......................................................................................... 43
9.1. Permit or Inhi bit .................................................................................................................. 43
9.2. Initializi ng the B alan ce ....................................................................................................... 44
10. Function T able ....................................................................................................................... 45
10.1. Setting the Function T able ................................................................................................. 45
10.2. Details o f th e F unct io n Table ............................................................................................. 47
10.3. Descriptio n of t he C l ass "Env ir on men t, Dis pl ay " ............................................................... 49
10.4. Description of the Item "Data Output Mode" ..................................................................... 51
BM series 1
10.5. Description of the Item "Data Format" ............................................................................... 52
Interface and Communication
Maintenance
10.6. Data Format Examples ...................................................................................................... 55
10.7. Clock and Calendar Function ............................................................................................ 57
11. ID Number and GLP Report.................................................................................................. 58
11.1. Setting the ID Number ....................................................................................................... 58
11.2. GLP Report ........................................................................................................................ 59
12. Data Memory ......................................................................................................................... 65
12.1. Notes on U sing D at a M e mory ........................................................................................... 65
12.2. Data Memory for Weighing Data ....................................................................................... 65
12.3. Data Mem ory for C ali br ati on an d C ali bra tion Test Data .................................................... 69
13. Underhook ............................................................................................................................. 71
14. Density M easur e ment ( Specific gravity ) ............................................................................... 72
15. Password Function ................................................................................................................ 75
15.1. Balance So f tw are Version 1.50 to 1. 64 ............................................................................. 75
15.2. Balance Sof twar e Version 1.660 or later ........................................................................... 76
15.3. Using the Password Function ............................................................................................ 77
15.4. Entering th e Passw ord Be for e We ighi ng .......................................................................... 78
15.5. Logging Out ....................................................................................................................... 80
15.6. Stor i ng or C h angi ng th e P assw or d .................................................................................... 81
15.7. Changing the Passw ord .................................................................................................... 82
15.8. Deleting th e Passw ord (U5ER 0 1～10) ............................................................................ 83
15.9. Forgotten Pas sw ord ........................................................................................................... 83
16. Standard Input and Output Interface ..................................................................................... 84
16.1. RS-232C Interface ............................................................................................................. 84
16.2. Connecting to Peripheral Equipment ................................................................................. 85
16.3. Commands ........................................................................................................................ 89
17. Key Lock Function ................................................................................................................. 94
17.1. Locking All the Keys ........................................................................................................... 94
17.2. Locking t he Specified Key s ................................................................................................ 95
18. Checking th e Bala nce S oftw are Version............................................................................... 95
19. Maintenance .......................................................................................................................... 96
19.1. Cleaning an d Handli ng t he Bal ance .................................................................................. 96
19.2. Error Codes ........................................................................................................................ 96
19.3. Other Dis play ..................................................................................................................... 98
19.4. Checking th e Bala nce P erfor manc e and Env iro nmen t ..................................................... 99
19.5. Asking for Re pai r ............................................................................................................... 99
20. Specifications ...................................................................................................................... 100
20.1. External D ime nsi ons ........................................................................................................ 102
20.2. Options and Peripheral Equipment ................................................................................. 103
21. Terms/Index ......................................................................................................................... 107
21.1. Terms ............................................................................................................................... 107
21.2. Index ................................................................................................................................ 108
2 BM series
1.
Introduction
About this manual
Balance software version
18. Checking the Balance Software Version
This manual describes how the BM series balan ces wo rk and how to ge t the mo st out of them in
terms of performance. Read this manual thoroughly before using the balance and keep it at hand
for future r efere nce.
This manual cons ists of the fol low ing fi ve par ts:
Basic operati on
Adapting to the environment
Selecting functi ons
Interface and communication
Maintenance
..............................
...........
..........................
..........
..................................
Describes precautions, the balance's construction and basic
operation.
Describes response (and stability) adjustment to adapt to the
environmen t w her e t her e is v ibr ati on or dr afts , t he w ay to
maintain w eig hing pr ec i sio n i n a v ari a tio n o f a mbi ent
temperatur e, cal ibra tion an d cali brati on tes t.
Describes fu ncti ons o f the bal ance .
Describes the ser i al i nt e rfac e us e d for c o mmuni c ati ng w ith a
computer t hat req u ests w eig hing data and controls the
balance, and for us e with a pr int er
Describes mai nt ena nc e, er r or c ode s, tr oubl es ho oti ng,
specifica tions and opti ons .
Some balance operations vary depending on the balance software version. For details on
checking t he s o ftw are ver si on , r efer t o “
”.
BM series 3
1.1.
Features
15. Password Function
BM-5D
BM-22
BM-5, BM-5D, BM-20
BM-22
AD-1688
A built-i n i oni z er can eliminate static electricity from the weighing sample before weighing,
reducing wei ghi ng error s.
Each electrode unit of the ionizer is desi g ned t o be re mov ed, cl ea ned an d r epl ac ed.
Automatic self calibration, using the internal mass, adapting to changes in temperature.
Response adj ust ment a dapti ng to dr afts and/or vibr ation in the e nvir onmen t automatically.
Memory function to store weighing data and calibration data.
When only weighing data is stored, a maximum of 200 data can be stored.
Interval mode to stor e the weig hing data per io dical ly.
Good labor at ory pr acti c e ( GLP) / Good manufacturing practice (GMP) data can be output using
the RS-232C serial inter face .
A built-i n cl oc k and cal end ar t hat c a n add the tim e and dat e to th e outp ut dat a. (Changing the
clock sett ing c an b e l i mite d to t he ad mini st rat or . Re fer to “
The password function can be use d t o r es tri ct bala nc e us er s or c ha nge s t o t he fun cti on s et ti ngs .
”.)
The key lo ck func ti on disables the bal anc e key op erati on an d enabl es the bal anc e to be o perat ed
only by comma nds fr om ext ernal devi ces.
Underhook , for meas uri ng de nsi ty a nd w eig hing m agn eti c mat eri als .
Multiple wei ghi ng unit s w ith most of the co mmo n units used ar oun d the w orld.
Gram, Milligram, Counting mode, Per cent mode, Ounce (Avoir), Troy Ounce, Metric carat, Momme,
Pennyweight, Grain (UK), Tael (pres et at the factory), Tola (India), Messghal and Densi ty mode
The
The micro tube holder is included in the accessories of the
Density mod e for cal cul ating the d ensity of a sol id.
The BM series balances are equip ped wit h an RS-2 32 C s eri al i nt er fac e an d a USB inter face t o
(readability: 1 μg) after zer oing a tare wei ght , if wi thin the w eig hing c apac ity .
communicate with a computer. While outputting data to a printer using the RS-232C interface,
data can be transmitted to a computer at the same time using the US B i nter fac e.
Using the RS-232C interface and the Windows communication tools softw are (WinCT) enables bi-
directional communication between a Windows computer and the balance.
The current v ersi on of the WinCT can be downl oaded from the A&D website.
and
are equi ppe d wit h a smart range function to weigh in the precision range
and
.
Connecting the US B inter face o f the bal anc e by a cabl e to a Window s comp uter allow s
transmissi on of t he weig hing data t o Excel or Word.
When multipl e bala nces have th e BM-08 Ethern et i nter fa ce i nstal l ed i n pl ace of th e U SB i nt er fac e
and connected to a LAN, data can be acquired from each of them using the WinCT-Plus so ftw ar e.
When the accessory data logger (
using a computer.
4 BM series
) is c onnected, weigh ing data can be stored without
1.2.
Compliance
1.2.1.
Compliance with FCC Rules
Please note that this equipment gene rates, uses and can radiate radio frequency energy. This
equipment has b een tes t ed and h as been f ound to com p ly with the limit s of a C las s A comp utin g
device pursuant to Subpart J of Part 15 of FCC rules. These rules are designed to provide
reasonable protection against interference when equipment is operated in a commercial
environment. If this unit is operated in a residential area, it may cause some interference and
under these circumstances the user would be required to take, at his own expense, whatever
measures ar e neces sar y to eli mina te the i nter feren ce.
(FCC = Fe der al C om muni ca tio ns Co mmi ssi on in th e U. S. A.)
BM series 5
2.
Unpacking the Balance
Accessories for each model
BM-5, BM-5D, BM-20, BM-22
BM-252
BM-200, BM-300
BM-500
Tabletop Breeze break (M)
Unpack the balan ce carefull y. Keep the pa cking materia l to be used fo r transport ing the balance
in the future. See the illustrations to confirm that everything is included.
Small weighing Large weighing
pan for filter pan for filter
Weighing pan Pan support
Micro tube holder
Small fine range ring
Fine range ring
Dust plate
φ15, 0.8 mL φ12, 0.3 mL φ8, 0. 05 mL
Large Medium Small
Round aluminum analytical pans (
10 pieces each
Weighing pan Pan support
Fine range ring
Breeze break ring
Dust plate
)
Weighing pan
Pan support
Breeze break ring
Dust plate
6 BM series
Common accessories
AC adapter AC adapter labels
Data logger
232C interface of
(1.5 m or 1.8 m)
(PET resin)
Tweezers
Use it to avoid temper atur e changes
n the
weighing chamber, thus to perform
D-sub 9 pins
Positions to place the AC adapter labels
Attach t he AC adapter l abel s to the AC adapter
as shown in the illus trati on.
Notes
Please confirm that the AC adapter ty pe is correct for your local
voltage and receptacle type.
Please use the dedicated AC adapter specified for the balance.
Do not use the AC adapter provided with the balance for other
models or equipment with which the AC adapter may not be
compatible.
If you use the wrong AC adapter, the balance and other equipment
may not operate properly.
USB cable
Body cover
BM series 7
Display cover
Cover during storag e to prevent dust and dirt contamination.
The cover can b e used for the b alanc e wit h the AC adapter and other cabl es
connected.
Separation plate
If unnecess ary, r emov e it.
AD-1688
The weighing data can be
stored when connected to
the RSthe balance.
AD-1689
Tweezers for handling a weight.
due to having your hand i
accurate calibratio n.
Grounding terminal
Anti-theft device
AC adapter jack
USB interface
External key jack
Cap the termi nal with the acces sory
RS-232C serial interface
D-su b 9 pins
Outlet example
Serial number
Ionizer
Electrode unit of the
ionizer
Separation plate
If unnecessary , remove it.
Joint handle
Bubble spirit level
Leveling foot
Glass door handle
The handle can be jointed to the joint handle
Neutralization
area
Glass door handle
Display cover
LED of the ionizer
Example of BM-20
Weighing
chamber
Display
Keys
When jointed to the right (left) g lass
door handle, the right (left) glass
door c an be opened or closed with
the left (right) joint handle.
The handle for the glass door .
rubber cap whe n it is not used.
8 BM series
3.
Installing the Balance and Precautions
3.1.
Installing the Balance
3.2. Precautions Before Use
BM-200, BM-300, BM-500 BM-252
BM-5, BM-5D, BM-20, BM-22
Weighing pan
Breeze break ring
Dust plate
Pan support
Use the fine r ange ri ng in pl ace o f the bre eze br eak
ring
with
Fine range ring
Sectional view
Pan support
Weighing pan
Small fine range ring
Dust plate
Fine range ring
Large weighing pan for filter
Small weighing pan for filter
Choose the w eighing pan
appropriate to the filt er s ize.
Micro tube holder
Use the holder for
of φ12 m m or less .
Fine range ring
Note
1 Place the balance on a sol id wei ghi ng tabl e. Refer to "
a place to install the balance.
2 Assemble the weighing pan and other parts in accordance with the model and use as sh own bel ow.
" for det ails on
to avoid err ors ca used by draf t s when weighing
a readability of 0.01 mg.
The mounting
direction (head /
tail) of the dust
plate.
Note When using the micro tube holder for the BM-5 and BM-5D:
The micro tube holder is ap proxima tely 2 g heavier than the sta ndard pan (w eighing pan a nd
pan support). When a micro tube holder is used for the BM-5 and BM-5D, the available weighing
range will be up to approximately 3 g including the tare such as a micro tube and test tube.
BM series 9
micro tube or t est tu be
Assembling the parts in the weighing chamber
3.1.2
Removing and attaching the separation plate
Adjusting the Level
Screw
Hook
Separ ation plate
Leveling
f
BM-252, BM-200 BM-252
BM-300, BM-500
Bubble spirit level
BM-5, BM-5D, BM-20, BM-22
oot
3 If the separation plate is not necessary, remove the
screw and take the plate off. Refer to "
.
".
4 Adjust the level of the balance using the leveling feet.
(Refer to "
" on page 14.)
5 Confirm that the AC adapter type is correct for your local
voltage and power receptacle type.
6 Connect the specified AC adapter to the balance. Warm
up the balance for at least one hour wit h nothing on the
weighing pan.
10 BM series
3.1.1.
•
•
BM series
Front p anel
Rear panel
A
How to use the Tabletop breeze break (For BM-5, BM5D, BM-20, BM-22)
Features
T his Tabletop breeze break is used to prevent from ambient drafts due to air conditioning and body motion so as
to reduce weighing error.
Be sure to install this breeze break on the balance, as it is affected by even the slightest wind.
This breeze break is designed for the BM series with most suitable use.
The transparent panel assembly consists of antistatic plastic material, which protects the balance from static
electricity.
The rear panel is equipped the hole that i s used to pass the RS-232C and AC adapter cables through.
How to install
We recommend to install the tabletop breez e break (M) in a
position where the display of the balance can be seen
easily and the balance can be operated properly .
Minimize the opening width A of the slide door as narrow
as possible so as to reduce influence of ambient drafts.
Caution
Do not use organic solvents to clean the breeze break because it may damage the transparency and anti-static
properties of the p anels.
Use a sof t l int free clot h dampe ned wi th warm wate r a nd a mil d de tergent whe n cle aning the br eeze br eak.
BM series 11
3.1.2.
Removing and attaching the separation plate
Removing the separation plate
Attaching the separation plate
3.2.
Precautions Before Use
BM-5, BM-5D, BM-20
BM-22
AD-
1671
AD-8922A
BM-5, BM-5D, BM-20
BM-22
AD-1672/AD-1672A
AD-1676
Hook
Screw
Step
1
Step
1
Step
2
Step
3
Step
3
Step 4 Hook
Separation plate
Note Take care not to dama ge th e sep ar atio n p lat e when handlin g it.
1 Support the separation plate and
remove the screw from the plate.
2 Lift the plate and unhook the hooks.
3 Rotate the plate on the axis of the front edge.
Rotate the plate on the axis of the back edge.
4 Remove the plate from the chamber.
Use the arrow s in rev erse t o atta ch the pl ate.
5 Insert the plate i nto the chamber.
6 Rotate the plate on the axis of the back edg e.
Rotate the plate on the axis of the front edge.
Level the pla te.
7 Insert the hooks and hook the plate.
8 Support the plate and secure t he scr ew.
To ensure that you g et the m ost from y our bal anc e, please tr y t o follow thes e conditi ons as closel y as
possible, especiall y for the
The best oper a ting t e mper at ure i s ab out 20° C / 6 8°F at a bout 50 % R el ativ e Hu midi ty .
The weighing room should be free of dust.
Clean the weighing chamber and its surroundings to prevent foreign matter from invading,
especially when wei ghi ng a v ery sm all a mou nt of sample.
The weighing table shoul d be soli d and free from vibr ation, drafts ( such as frequen tly openi ng doors
or windows) and as level as possible. W e recommend that you use the anti-vibration table (
) and the remote c ontroller (
Do not install the balance where it will be subject to vibration. Corners of rooms on the first floor are best.
Do not install the balance near a heater, air conditioner, or in a breeze. The influence of breezes
can be reduced by using the tabletop breeze break (L) (
breeze break (M) (
).
) for the
and
that are sensitive.
and
.
) or t he tabletop
Do not instal l the b alanc e in dir ect sun light . Av oid ex cessi ve te mperat ure c hang es.
Do not use the bal anc e near o ther equip ment w hich pr oduc es mag neti c fiel ds.
Adjust the lev el of t he bala nce usi ng th e lev elin g feet .
Please warm u p the bal anc e for at least one ho ur. Plug in the AC adap ter as usual .
Calibrate the balance if it is installed for the first time or relocated, or w hen a weig hing pan is repl aced.
Ensure a stabl e pow er s our ce w hen usi ng th e A C a dap ter .
Do not place or use the balance where there is flammable or corrosive gas present.
12 BM series
Adjusting the level
When the bubble is off to the left：
on the rear right in the
When the bubble is off to the right：
Turn the leveling foot on the rear left in the
When the bubble is off to the backward
：
leveling feet on the rear in the
When the bubble is off to the forward
：
Turn both leveling feet on the rear in the
Up
Down
Bubble spirit level
Turn the leveling foot
clockwise direction.
Level
clockwise direction.
Level
position
Turn both
counterclockwise direction at the same time.
Level
Red circle
Bubble
OK NO
Red circle
Leveling foot
Down
position
clockwise direction at the same time.
Level
水平器
Leveling foot
Up
BM series 13
3.3.
Precautions During Use
13. Underhook
BM-252
BM-5
BM-5D, BM-20
BM-22
BM-5, BM-5D, BM-20
BM-22
Grounding
Metal case
Charged mat erial
Magnetic material
40°C
20°C
Draft Weighing pan
Fine range ring
BM-252
Shock
BM-5
BM-5D
BM-20
BM-22
Fine range ring
Small fine range ring
Tabletop breeze break (M)
BM-5
BM-5D
BM-20
BM-22
Note the foll owi ng i t ems t o ge t ac cur at e w eig hi ng dat a.
Discharge static electricity from the weighing sample. When a
weighing s ampl e (pl as ti cs, ins ul at or, etc .) co ul d hav e a s ta tic
charge, the weight value is influenced. Ground the balance, and
Eliminate the static electricity using the built-in ionizer.
Try to keep the ambient humidity at or above 45% RH in the room.
Use a metal shield case.
Wipe a charged material (plastic sample, etc.) with a damp cloth.
This balance us es a s trong magnet as part o f t he bal a nce assembly,
so please use caution when weighing magnetic materials. If there is
a problem, use the underhook (refer to "
suspend the m aterial away from th e in fluence of t he mag net.
Eliminate temperature differences between the weighing sample and
the environment. When a sample is warmer (cooler) than the ambient
temperature, the sample will appear lighter (heavier) than the true
mass. This error is due t o the r ising (fall ing) draft around t he sa mple. If
you touch the sample, the same type of error will occur. Do not touch
the sample directly with your hand. Use tweez ers or other to ols.
") to
Do not drop things upon the weighing pan, or place a weight
beyond the range of the balance on the weighing pan.
Make each weighing gently and quickly to avoid errors due to
changes in t he e nv iro nm ental c o ndi tio ns.
Use the fine range ring and attach the separation plate (in condition
at shipping from factory) in order to avoid weighing errors caused by
drafts when weighing using the
Use the small fine range ring and fine range ring and attach the
separation plate ( in condition at shipping from factory) in order to avoid
weighing err ors caused by dr afts wh en weighing using the
reduce the influence of breezes, mini mize o perati on o f doors o f the
weighing c ham ber . In addition , i n or der to w eigh m ore acc ura tely
while reduc i ng t he ef fect s o f the s urro undi ng environment, be sur e t o
install the tabletop br e ez e br eak (M) to the weighing cha mber .
The weighing value of the
may change after the stabilization indicator is displayed. We
recommend that you set a certain amou nt of wait time (appro x. 10
seconds) before reading the value after the stabilization indicator is
displayed.
or
(readability: 0.01 mg and 0.001 mg). To
(r eadability: 0.01 mg).
and
,
If contamination may be a problem, perform sampling operations
outside the weighing c hamber in order to prevent the sample from
scattering in the weighing chamber.
Take into consideration the affect of air buoyancy on a sample
when more acc uracy is requi red .
14 BM series
Do not use a sharp instr ument (suc h as a pen cil or ball p oint pe n) to
3.4.
Precautions After Use
3.5.
Precautions for Power Supply
BM-5, BM-5D, BM-20
BM-22
press the keys, use your finger only.
Press the RE-ZERO key before e ac h w eig hin g to pr ev ent po ssi ble
errors.
Keep the bala nce i nter i or fr ee o f foreign matter (dust, liquid or metal
fragments).
Avoid mech ani ca l s hock t o y our bal a nce.
Do not disassemble the balance. Contact your local A&D dealer if your balance needs service
or repair .
Do not use solvents to clean the balance. F or best cleaning, wipe wit h a dry lint free cloth or a
lint free c lot h tha t i s moi ste ned w ith w arm wat er a nd a mil d d et erge nt .
Keep the balance interior free of foreign matter (dust, liquid or metal fragments).
Do not remove the AC adapter while the internal mass is in motion, for example, right after the
AC adapter is co nn ecte d, or dur ing c ali bra tio n u si ng the i n ter nal m ass .
If the AC adapter is removed under the co nditions described above, the internal ma ss will be
left unsecur ed, that may caus e mech anical dam age wh en th e b ala nc e is mov ed.
Before removing the AC adapter, press the ON:OFF key and confirm that zero is displayed in
the weighing mode.
After connecting the AC adapter to the balance, warm up the balance for at least one hour
before wei ghi ng.
When the AC adapter is c onn ecte d, the ba lance is in the standb y mo de if the s tandb y ind ica tor
is on. This is a normal state and does not harm the balance. For accurate weighing, we
recommend that the AC adapter be kept connected , especially for the
and
.
BM series 15
4.
Display Symbols and Key Operation
Display
12. Data Memory
Key operation
Key
When pressed and released
When pressed and held (approx. 2 seconds)
Turns the display on and off. The stan dby indicator i s displayed whe n the display is tur ned off.
15.4. Entering
the Password Before Weighing
and turn t he dis play off.
Cancels the operation when performing
mass.
Switches the preset w ei ghi ng uni ts stor ed
Refer to "5. Weighing Units".
Displays the function table menu.
10. Function Table
Refer to "6.7. Repeatability Test".
No function at the factor y set ting .
The data m emory menu is di spl ayed .
The key to moni tor the time and dat e, and the environmental sensors (temper ature, humidity, barometric
pressure), for several seconds. Refer to "6.6. Monitoring the Clock and Environmental Sensors".
Response indicator for approx. 30
seconds when weighing st arts.
The amount of stored data w ith data memory function
Humidity (%)
St a nd by i ndi cat or o f
interval memory func tio n
Ionizer oper ati on indi cat or
Units.
Refer to "5. Weighing Units".
Active indicator of
interval memory function
Prior notice indicator of
automatic self calibration
St abilization indicator
The current data number
St a nd by i ndi cat or
of power s uppl y
Blinking indicators
Weighing data or stored data
Active processing indicator
Density mode, Display lock
Right and left glass door indi cator
Barometric pressure (hPa)
Processing indicator
The interval memory function is used to store the weighing data periodically. Refer to "
Press and release the key immediately or "Click the key"
Press and hold the key (for approx. 2 seconds)
When the display is turned on, the weighing mode is enabled. If the passw ord func tion i s
used,
This key is av ailabl e an ytime . Pres sing the key during oper atio n will inte rrup t the oper ati on
function settings.
Enters the calibration mode us ing the internal
in the function table.
In the weighing mode, turns the minimum
weighing v alue on and off.
In the counting or perc ent mode, ent ers
the unit mass stor ing mode or ref erence
mass storing m ode.
is displayed to prompt you to enter a pas sword. Refer to "
pa55
".
..............................................................................
...................................................................
Displays other items of the calibration menu.
Performs automatic response adjustment.
Refer to "
Perform s a r ep eat ab ili ty t est w hen pr ess ed
and held for ano ther 2 s econ ds aft er th e
function t able me nu is di splay ed.
".
".
The key to output the weighing data to a
printer or per son al com puter (or stor e it i n
memory) dep endi ng on the f uncti on tabl e
settings. (Factory sett ing = out put)
The key to se t t he dis pl ay t o z er o.
The key to tur n the io niz er on and off.
16 BM series
By changing the function tabl e:
"Title block" and "End block" for GLP /
GMP report ar e out put.
5.
Weighing Units
5.1.
Units
5.2. Storing Active Units
Gram
g
1 g
-
-
Ounce (Av oir)
oz
28.349523125 g
Metric Carat
ct
0.2 g
Tael (HK ge n eral , Sing a por e)
37.7994 g
Tael (Taiw an)
37.5 g
Density mode
DS
Refer to "14. Density Measurement"
14. Density Measurement
The units and weighing modes can be selected and sto red in the function table as described i n
"
The sequence of displaying them can be arranged to fit the frequency of use.
They are stored and are mai ntai ne d i n n on-volatile m emory , eve n if the AC ada pter i s remov ed.
If the law in your area permits, you may use all of the units. You can disable the units that you
don't regul arly use. An d you are able to turn th em bac k on.
If a weighing mode (or unit of mass) has been turned off, that mode or unit will be missing in the
sequence. Ta el has four varie ties, o ne of which c an be sel ect ed and i nstall ed at the fac tory .
Press the MODE key to select a unit or mo de for wei ghi ng.
For details ab out th e unit s and mo des, see the t able b elow :
Name (unit, mode) Abbreviation Display u nit Conversio n fact or
".
Milligram mg
Counting mo de PC
Percent mode %
Troy Ounce ozt 31.1034768 g
Momme mom 3.75 g
Pennyweight dwt 1.55517384 g
Grain (UK) GN 0.06479891 g
Tael (HK jewelry) 37.429 g
tl
Tael (Chin a) 31.25 g
Tola (Indi a) t 11.6638038 g
Messghal m 4.6875 g
0.001 g
Density mode
To use the densit y mod e, it mu st be st ored i n the fu ncti on tabl e as described on page 21.
For details about t his mod e, r efer to "
To s elec t the den sity mode, pres s the MODE key until the pr ocess ing i ndict or blinks with
the unit "g" dis pl ayed.
BM series 17
".
Capacity and readability for the BM-252, BM-200, BM-300, BM-500
BM-200
BM-300
BM-500
Gram
220
320
520
0.0001
Milligram
220000
320000
520000
0.1
Ounce (Avoir)
7.76
11.2
18.3
0.00001
Troy Ounce
7.07
10.2
16.7
0.00001
Metric Carat
1100
1600
2600
0.001
Momme
58.6
85.3
138
0.0001
Pennyweight
141
205
334
0.0001
Grain (UK)
3395
4938
8024
0.002
Tael (HK general, Singapore)
5.82
8.46
13.7
0.00001
Tael (HK jewelry)
5.87
8.54
13.8
0.00001
Tael (Taiwan)
5.86
8.53
13.8
0.00001
Tael (China)
7.04
10.2
16.6
0.00001
Tola (India)
18.8
27.4
44.5
0.00001
Messghal
46.9
68.2
110
0.0001
BM-252
Gram
250
0.00001
Milligram
250000
0.01
Ounce (Avoir)
8.81
0.000001
Troy Ounce
8.03
0.000001
Metric Carat
1250
0.0001
Momme
66.6
0.00001
Pennyweight
160
0.00001
Grain (UK)
3858
0.0002
Tael (HK general, Singapore)
6.61
0.000001
Tael (HK jewelry)
6.67
0.000001
Tael (Taiwan)
6.66
0.000001
Tael (China)
8.00
0.000001
Tola (India)
21.4
0.000001
Messghal
53.3
0.00001
The tables b elow in dica te the w eigh ing ca pacity and t he rea dabil ity for eac h bala nce.
Unit
Capacity
Readability
Unit
Capacity
Readability
18 BM series
Capacity and readability for the BM-5
BM-5D
BM-5D
BM-5
Gram
5.20
0.000001
Milligram
5200
0.001
Ounce (Avoir)
0.183
0.0000001
Troy Ounce
0.167
0.0000001
Metric Carat
26.0
0.00001
Momme
1.38
0.000001
Pennyweight
3.33
0.000001
Grain (UK)
80.1
0.00002
Tael (HK general, Singapore)
0.137
0.0000001
Tael (HK jewelry)
0.138
0.0000001
Tael (Taiwan)
0.138
0.0000001
Tael (China)
0.166
0.0000001
Tola (India)
0.444
0.0000001
Messghal
1.10
0.000001
BM-5D
Gram
2.10
0.000001
5.20
0.00001
Milligram
2100
0.001
5200
0.01
Ounce (Avoir)
0.0737
0.0000001
0.183
0.000001
Troy Ounce
0.0671
0.0000001
0.167
0.000001
Metric Carat
10.5
0.00001
26.0
0.0001
Momme
0.560
0.000001
1.38
0.00001
Pennyweight
1.34
0.000001
3.33
0.00001
Grain (UK)
32.4
0.00002
80.1
0.0001
Tael (HK general, Singapore)
0.0551
0.0000001
0.137
0.000001
Tael (HK jewelry)
0.0560
0.0000001
0.138
0.000001
Tael (Taiwan)
0.0560
0.0000001
0.138
0.000001
Tael (China)
0.0671
0.0000001
0.166
0.000001
Tola (India)
0.179
0.0000001
0.444
0.000001
Messghal
0.444
0.000001
1.10
0.00001
and
The
is equipped with the precision range and standard range of the smart range function.
Unit
Precision range
Capacity Readability
Unit
Precision range Standard range
Capacity Readability Capacity Readability
BM series 19
Capacity and readability for the BM-20
BM-22
BM-22
BM-20
Gram
22.0
0.000001
Milligram
22000
0.001
Ounce (Avoir)
0.776
0.0000001
Troy Ounce
0.707
0.0000001
Metric Carat
110
0.00001
Momme
5.86
0.000001
Pennyweight
14.1
0.000001
Grain (UK)
339
0.00002
Tael (HK general, Singapore)
0.582
0.0000001
Tael (HK jewelry)
0.587
0.0000001
Tael (Taiwan)
0.586
0.0000001
Tael (China)
0.704
0.0000001
Tola (India)
1.88
0.0000001
Messghal
4.69
0.000001
BM-22
Gram
5.10
0.000001
22.0
0.00001
Milligram
5100
0.001
22000
0.01
Ounce (Avoir)
0.179
0.0000001
0.776
0.000001
Troy Ounce
0.163
0.0000001
0.707
0.000001
Metric Carat
25.5
0.00001
110
0.0001
Momme
1.36
0.000001
5.86
0.00001
Pennyweight
3.27
0.000001
14.1
0.00001
Grain (UK)
78.7
0.00002
339
0.0001
Tael (HK general, Singapore)
0.134
0.0000001
0.582
0.000001
Tael (HK jewelry)
0.136
0.0000001
0.587
0.000001
Tael (Taiwan)
0.136
0.0000001
0.586
0.000001
Tael (China)
0.163
0.0000001
0.704
0.000001
Tola (India)
0.437
0.0000001
1.88
0.000001
Messghal
1.08
0.000001
4.69
0.00001
and
The
is equipped with the pr ecisi o n r ang e an d s ta ndar d r ang e o f the s mart r ang e func ti on.
Unit
Precision range
Capacity Readability
Unit
Precision range Standard range
Capacity Readability Capacity Readability
20 BM series
5.2.
Storing Active Units
Unit
Display
Specify the unit
Press and hold
Press several times
The indicator is
units specified.
Store
Selection key
Examples
The units and mod es ca n be sel ecte d and store d in the functi on ta ble.
The sequence of displaying them can be arranged to fit the frequency of use.
The units stor ed ar e m ai ntai ne d i n n on-volatile m emory , eve n if the AC ada pter i s remov ed.
1 In the weighing mode, press and hold the RANGE
key (for approx . 2 seconds) until ba5fnc is displayed,
and then release the key.
2 Press the RANGE key several tim es to dis pl ay Unit .
3 Press the PRINT key to enter the uni t sele cti on mod e.
4 Specify a unit or mode in the or der to be dis play ed
using the foll ow ing k ey s.
RANGE key
RE-ZERO key
Examples
.........
To display t he unit s seq uenti ally.
......
To specify a uni t or m ode.
The indica tor appears when
the display ed unit or mo de is spec ifi ed.
(approx. 2 seconds)
Gram g
Milligram mg
Counting mode PC
Percent mode %
Density mode DS
5 Press the PRINT key to st ore t he uni ts or mod es.
The balance di splay s end and then display s the n ext
menu item of the function table.
6 Press the CAL key to exit the function table.
Then the bala nce r etur ns to the w eig hing mode w i th th e
selected un it.
displayed at the
BM series 21
5.3.
Selecting Units and Weighing Modes
5.2. Storing Active Units
BM-5, BM-5D, BM-20
BM-22,
BM-252, BM-200, BM-300
BM-
500
14. Density Measurement
The unit sequence of the factory settings.
Turning the display on.
BM-5 BM-252
BM-5D BM-200
BM-20 BM-300
BM-22 BM-500
Counting mode
Percent mode
Ounce (Avoir)
Troy Ounce
Metric Carat
Momme
Pennyweight
Grain (UK)
Tael
Tola (India)
Messghal
Density mode
Preset the seq uenc e of dis playi ng uni ts and
weighing mod es to fi t th e freq uency of use .
Refer to "
Press th e MODE key in the weighing mode to
display the u nits and weighing modes in order.
For the
the units preset at the factory, (Milligram)
and (Gram), are dis pla yed in this order.
".
and
For the
and (Milligram), are di s play ed in this order.
Density mode
To use the densit y mod e, it mu st be stored in
To selec t the density mode, press the
, the units preset at the factory, (Gram)
the function table as described on page 21.
Refer to "
details about the mode.
MODE key until the pr ocessi ng indi ct or
blinks with t he unit "g" di splay ed.
and
" for
22 BM series
5.3.1.
Unit Setting Example
Press several times
Press several times
Specify gram
Specify counting mode
Store
Press and hold
The example below sets the units in the order with g (gram) as the first unit followed by PC
(counting mo de) .
1 In the weighing mode, press and hold the RANGE key
(for approx. 2 seconds) until ba5fnc is displayed, and
then release the key.
2 Press the RANGE key several tim es to dis pl ay Unit .
3 Press the PRINT key to enter the uni t sele cti on mod e.
4 Press the RE-ZERO key to specify the unit of g.
The stabili za tio n i ndi c ator appears when the unit is
specified.
5 Press the RANGE key several tim es to dis pl ay Unit .
6 Press the RE-ZERO key to speci fy the u nit of PC.
The stabili za tio n i ndi c ator appears when the unit is
specified.
7 Press the PRINT key to st ore t he uni ts.
The balance di splay s end and then displays the next
menu item of the function table.
8 Press the CAL key to exit the fu nctio n tabl e. The n the
balance r etur ns to th e w eig hi ng mod e wi th g , th e uni t
selected first.
9 Press the MODE key to switch between g and PC.
(approx. 2 seconds)
BM series 23
6.
Weighing
Precautions for the weighing operation
8. Calibration
BM-5, BM-5D, BM-20
BM-22
3. Installing the Balance and Precautions
6.1.
Basic Operation
4. Display Symbols and Key Operation
Container
(tare)
Weighing pan
Stabilization
Stabilization
indicator
The glass door
is not closed
Close the door
Remove
Zero display
Press the key
to select a unit,
Warning
Sample
Press the RE-ZERO key each time, before placing a sample on the weighing pan, to prevent
possible er r ors .
Place a sample in the center of the weighing pan gently.
Temperatur e c h ange s d uri ng me as urem ent ma y cau se w ei ghing errors.
Shorten the o perati on ti me as much as possib le. (
Material w ith an el ectr os tati c c har ge or th at is mag neti c may ca us e w eig hing er r ors.
Use a pair of tweezers to avoid a temperature change due to having your hand in the weighing
chamber.
Do not dr op thi ng s on t he pan , or plac e a w eig ht on th e p an t hat is b ey ond th e w eig hing r ang e.
Keep the ar ea clea n and dr y.
Do not pr ess k ey s w ith a sh arp i nstr u men t (s uc h as a pe ncil or b all poi nt pe n).
For precisi on w eighi ng, ke ep the AC adapt er co nnecte d to th e bala nce.
Calibrate periodi cally to mai ntain w eighi ng acc uracy . Refer to "
For the
precision wei ghi ng c an be p er for med .
Consider section "
and
Opening and closing door, placing and removing sample)
, perfo rm p re-weighing of the container (tare) so that
" for the w eighing opera tion .
".
Refer to "
Note When turning the bala nce on with a ta re weight pl aced on the
1 Press the ON:OFF key to turn the displ ay on.
2 Press the MODE key to select a unit, if neces sary .
3 Place a container (tare) on th e w eig hi ng pan, i f ne ces sar y.
Press the RE-ZERO key to c anc el th e tar e w eight .
Then zero is dis pl ayed .
Tare : A vessel placed on the pan, but not
4 Place a sample on the pan or in the container.
Close the door .
5 Wait for th e stab iliz ation indic ator to be
displayed, and th e n rea d the v al ue.
6 Remove the sample and container from the pan.
pan, the b alan c e au to mati c ally d isp lay s t he zer o d isp l ay .
to be included in the weighing data.
Example: Container.
(Gram Mode)
" before operation.
indicator
if necessary.
24 BM series
Zero operation, tare operation and weighing range
Model
Power on zero range
Zero range
-E di splay range
BM-5
BM-5D
BM-20
BM-22
BM-252
Approx. ±25 g
Approx. -37 g to +5.0 g
BM-200
Approx. ±22 g
Approx. -37 g to +4.4 g
BM-300
Approx. ±32 g
Approx. -37 g to +6.4 g
BM-500
Approx. ±52 g
Approx. -37 g to +10.4 g
When weighing is started
The balance will determine the reference zero point when the ON:OFF key is press ed to en ter
the weighing mode.
Depending on the load condition at that time, the balance will automatically judge whether to
perform zero or tar e o pe rati on . T he c o ndit ion for deter mi ni ng w hi ch i s us ed i s " p ower on z ero
range", a nd w he n p ow er o n zer o r a nge i s ex ce ede d, t h e t ar e oper ati on i s p erf or med.
Re-zero operation
By pressi ng the RE-ZERO key, t he dis pl ay can be set t o zer o.
The re-zero operation with the RE-ZERO key will autom ati call y j udg e w heth er t o per for m z er o or
tare operation.
The condit ion for det er mi ning w hich is us ed i s "z ero ra nge ", and w hen z ero r ang e i s ex ceed ed , t he
tare operation is performed.
Weighing range
The range th at t he bal anc e c a n wei gh v arie s depe ndi ng on th e m odel .
When the t ot al a moun t ( ne t w eig ht + tar e w ei gh t) dis pl ay ed for eac h mo del ex c ee ds t h e max i mu m
display,
When exceeded in the negative direc tion, -E is displayed.
E is displ aye d t o in dic a te t ha t t he w ei ghi ng r ang e i s ex ceed e d.
Approx. ±0.1 g Approx. -3.0 g to +0.1 g Less than approx. -3 g
Approx. ±2.2 g Approx. -3.0 g to +0.4 g Less than approx. -3 g
Less than approx. -37 g
BM series 25
6.2.
Smart Range
BM-5D
BM-22
Example
Precision range and standard range
BM-5D
BM-22
Precision range
Container (tare)
Weighing sample
The smart range for the
(high resol uti o n).
Smart rang e fu nctio n
The rang e switc hes a uto matic ally, depending o n the val ue dis playe d.
Pressing t he RE-ZERO key allows weig hing in the precis ion r ange, r egar dless of the tare value .
The rang e c a n be fix e d to t he s t an dar d r ang e b y pres sing t he RANGE key.
1 Press the RE-ZERO key to use t he prec isi on rang e.
The balance di splay s ze ro.
2 Place a container (tare) on the weig hi ng p an .
When the value of the container (tare) exceeds the
precision range, the balance automatically switches
to the standard range.
3 Press the RE-ZERO key to use t he prec isi on rang e.
The balance di splay s ze ro.
4 Place the weighing sample in the container (tare).
When the sample is within the precision range,
the weighing value can be read in high resolution.
and
consists of the standard range and precision range
Standard r ang e
Precision range
Precision range
Model Unit Precision range Standard range
Refer to pag es 20 and 21 for other u nits.
Milligram 0.000 to 2100.009 2100.01 to 5200.08
Gram 0.000000 to 2.100009 2.10001 to 5.20008
Milligram 0.000 to 5100.009 5100.01 to 22000.08
Gram 0.000000 to 5.100009 5.10001 to 22.00008
26 BM series
6.3.
Counting Mode (PC)
Selecting the counting mode
Storing a sample unit mass (Weighing input mode)
50 -
lo
Counting operation
Weighing pan
Container
(tare)
25 samples
Place samples
Counting result
To
Step
8 when using
This is the mode to determi ne the num ber of objects in a sam ple based on the standard sample
unit mass. The un it mass means an average m ass of the samples. The sm aller the variation in
the samples is, the more accurate the count will be. The balance is equ ipped with the Aut omatic
Counting Ac cur ac y I mpr ov e ment (AC AI) func ti on to i mpr ov e t he cou nti n g acc ur acy .
Notes
Use samples with a unit mass of 1 mg or more for count ing.
If the samp le u ni t m as s v ari ab le i s t oo la rge , it m ay caus e a cou n tin g e rro r.
To improve the counting performance, use the ACAI function frequently or divide the
samples into several groups and count each group.
1 Press the MODE key to sel ec t t he u nit (counting mode).
2 Press the RANGE key to enter th e sam ple uni t m as s s tor ing mo de .
3 Select the number of samples using the RANGE key.
It may be set to 10 , 25, 50 or 10 0.
Note A greater number of s amp les wi ll yield more accurate
counting result.
4 Place a container (tare) on th e w eig hi ng pan, i f ne ces sar y.
Press the RE-ZERO key to ca ncel th e w eig ht ( tar e) .
The number specified in Step 3 appears.
Example
5 Place the number of samples specified on the pan.
In this exampl e, 25 pi ec es.
6 Wait for the stabilization indic ator to be di splay ed.
Press the PRINT key to calculate and store the unit mass.
Then the bala nc e dis pl ay s 25 and is set to count samples
with this unit mass. To improve the accuracy of the unit mass,
proceed to Step 8.
Notes
If the balance judges that the mass of the samples is too light
to acquire accurate w eighing, i t displa ys an error requirin g the
addition of more samples to th e specified number.
Example:
25 samples and press the PRINT key. When the unit mass is
stored correctly, the balance proceeds to the counting mode.
: 25 0 is displayed if 25 is s el ect ed i n St ep 3.
appears, requiring 25 more samples. Add
the ACAI function.
If the balance judges that the mass of the samples is too light (
0.0001g
The sample unit mass is stored in non-volatile memory, and
is maintai ned even if the A C ada pt er is remo v ed .
7 Place the samples to be counted on the pan.
Read the result and remove the samples from the pan.
BM series 27
) and cannot be stored as t he unit mass, it display s
under
.
Counting mode using the ACAI function
From S tep 6 on
Add a few more
samples.
The indica tor t urns
on at prop er r a nge.
The indicator blin ks
during calc ul ati o n.
The indica tor t urns
mass is im pr oved.
Repeat
The ACAI is a function that improves the accuracy of the unit mass automatically by increasing
the number of samples as the counting process.
ACAI: Automatic C ount ing A cc uracy Impr ov em ent
Proceed to Step 8 a fter s toring a unit mass on the previ ous p age.
8 If a few more samples are added, the processing
indicator turns on. To prevent an error, add three or
more. The processing indicator does not turn on if
overloaded. Try to add the same number of samples
as displayed .
9 The balance re-calculates the unit mass while the
processing indicator is blinking. Do not touch the
balance or samples on the pan until the processing
indicator t urns o ff.
10 Counting accuracy is improved when the processing
indicator t urns o ff.
Each time the above operation is performed, a more
accurate unit mass will be obtained. There is no
definite upper lim it to the ACAI ran ge for the number
of samples exceeding 100. Try to add the same
number of samples as displayed.
11 Remove all the samples used in ACAI and proce ed
with the counting operation using the improved unit
mass.
off after the unit
the previ ous page
28 BM series
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