RADWAG PS 510/C/2/CT, PS 110/C/1, PS 210/C/2, PS 210/C/1, PS 360/C/2 User Manual

Number of instruction:
LMI-34-03/06/12/ENG

Precision bala nc es
PS series

MANUFACTURER
OF ELECTRONIC WEIGHING INSTRUMENTS

RADWAG 26 – 600 Radom, Bracka 28, POLAND
phone [phone], fax. [phone]
e-mail: [e-mail]

www.radwag.com

2

JUNE 2012

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Table of Contents

1. TECHNICAL DATA ......................................................................... 7

2. BASIC INFORMATION ................................................................... 9

2.1. Intended use ......................................................................................... 9

2.2. Inappropriate use .................................................................................. 9

2.3. Warranty ............................................................................................... 9

2.4. Monitoring the metrological parameters of the instrument .................. 10

2.5. Data included in this user manual ....................................................... 10

2.6. Staff training ........................................................................................ 10

3. TRANSPORT AND STORAGE ..................................................... 10

3.1. Delivery check ..................................................................................... 10

3.2. Packaging ........................................................................................... 10

4. UNPACKING, ASSEMBLING AND STARTUP ............................ 11

4.1. Assembling and place of use .............................................................. 11

4.2. Unpacking ........................................................................................... 11

4.3. Leveling ............................................................................................... 13

4.4. Standard equipment of a balance ....................................................... 13

4.5. Cleaning .............................................................................................. 13

4.6. Plugging to mains................................................................................ 13

4.7. Connecting peripheral devices ............................................................ 13

5. BASIC FUNCTIONS ...................................................................... 14

6. KEYBOARD................................................................................... 15

7. START-UP ..................................................................................... 16

8. USER MENU.................................................................................. 17

8.1. Moving through user menu ......................................................................... 17

8.2. Moving through user menu ......................................................................... 20

9. WEIGHING..................................................................................... 21

9.1. Selection of basic measuring unit........................................................ 22

9.2. Temporary measuring unit .................................................................. 23

9.3. Setting accessibility of balance working modes .................................. 24

9.3.1. Selection of working modes available for a user ........................... 25

9.3.2. Means of selecting one of available working modes ..................... 27

9.4. Dual range balance (PS 200/2000/C) ................................................. 28

10. BALANCE MAIN PARAMETERS ................................................. 29

10.1. Setting level of filtering ........................................................................ 29

10.2. Value release ...................................................................................... 31

10.3. Autozero function ................................................................................ 32

10.4. Blanking of the last digit on the display ............................................... 33

4

10.5. Weighing mode RAPID ....................................................................... 34

11. OTHER PARAMETERS ....................................................................... 35

11.1. Backlight of weighing result (display backlight) ................................... 36

11.2. Adjusting display brightness ................................................................ 36

11.3. “Beep” sound – reaction on pressing function key .............................. 38

11.4. Printout of all balance parameters through RS 232 port ..................... 39

12. BALAN C E ADJ UST ME N T ............................................................ 40

12.1. Internal adjustment.............................................................................. 41

12.2. Menu adjustments settings ................................................................. 42

12.3. Adjustment test ................................................................................... 46

12.3.1. Balances with internal adjustment ................................................. 46

12.3.2. Balances with external adjustment ................................................ 47

12.4. Manual adjustment .............................................................................. 48

12.4.1. Internal adjustment ........................................................................ 48

12.4.2. External adjustment ....................................................................... 49

12.5. Adjustment report printout ................................................................... 50

13. DETERMINING CONTENT OF A PRINTOUT FOR GLP

PROCEDURE ................................................................................ 51

14. BALANCE WORKING MODES .................................................... 55

14.1. Parts counting of the same mass ........................................................ 56

14.2. Checkweighing (HiLo) with reference to set standard ......................... 59

14.3. Percent setup ...................................................................................... 62

14.3.1. Reference mass determined by weighing ...................................... 63

14.3.2. Reference mass inserted to balance memory by a user ................ 64

14.4. Working mode FiLL ............................................................................. 65

14.5. Density determination of solids and liquids ......................................... 67

14.5.1. Testing thickness solids ................................................................. 68

14.5.2. Testing thickness of liquid ............................................................. 68

14.6. Totalizing ............................................................................................. 69

15. RS 232 FUNCTIONS ..................................................................... 71

15.1. Baud rate ............................................................................................ 72

15.2. Continuous transmission ..................................................................... 73

15.2.1. Continuous transmission in basic measuring unit .......................... 73

15.2.2. Continuous transmission in current measuring unit ....................... 74

15.3. Setting operation mode for RS 232 interface ...................................... 75

15.4. Determination of data type sent through RS 232 output ..................... 76

15.5. Minimal mass required for activation of automatic printout ................. 77

16. COOPERATION WITH A PRINTER OR A COMPUTER .............. 78

16.1. Cross-section through connecting conductors .................................... 79

16.2. Printing date with specified date and time ........................................... 80

16.3. Cooperation with statistic printer Kafka SQS ...................................... 80

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16.4. Format of data sending ....................................................................... 81

16.5. Format of data sent on pressing of PRINT key ................................... 81

16.5.1. Format of data sent as response for commands generated from a

computer ....................................................................................... 82

17. UNDER HOOK WEIGHING ........................................................... 83

18. LIST OF COMMANDS COMPUTER – BALANCE ....................... 84

19. ERROR MESSAGES ..................................................................... 86

20. ADDITIONAL EQUIPMENT .......................................................... 87

20.1 Anti-Vibration table .............................................................................. 87

20.2. Rack for under hook weighing ............................................................. 87

20.3. Density determination kit (for solids and liquids) ................................. 87

20.4. Additional display ................................................................................ 87

20.5. Computer software .............................................................................. 88

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7

1. TECHNICAL DATA
Balance PS series with weighing pan 128 x 128 mm:

Type

balance

External

adjustment

PS 510/C/1/CT

PS 200/

2000/C/1

PS 110/C/1

PS 210/C/1

PS 360/C/1

PS 510/C/1

PS 750/C/1

Internal

adjustment

PS 510/C/2/CT

PS 200/

2000/C/2

PS 210/C/2

PS 360/C/2

PS 600/C/2

PS 750/C/2

PS 1000/C/2

Max capacity

510g/

2550ct

200/

2000g

110g 210g 360g 510g 600g 750g 1000g

Tare range

-510g/

-2550ct

-2000g -110g -210g -360g -510g -600g -750g -1000g

Min load

0,02g/

0,1ct

20mg 20mg 20mg 20mg 20mg 20mg 20mg 20mg

Readability

0,001g/
0,005ct

1/10mg 1mg 1mg 1mg 1mg 1mg 1mg 1mg

Repeatability

0,001g/
0,005ct

1/10mg 1mg 1mg 1mg 1mg 1,5mg 1,5mg 1,5mg

Linearity

±0,001g/

0,005ct

±2/10mg ±2mg ±2mg ±2mg ±2mg ±2mg ±3mg ±3mg

Working

temperature

+10° - +40°C

Power supply

13,5 - 16 V DC / 1,1 A

Sensitivity

drift

2 ppm/°C in temperature +15° - +35°C

Pan size

128x128 mm

Dimensions:

8

Balance PS series with weighing pan 195 x 195 mm:

Tyne Balance

External

adjustment

PS 2100/C/1/CT

PS 1000/C/1

PS 1200/C/1

PS 2100/C/1

PS 3500/C/1

PS4500/C/1

PS 6000/C/1

PS 8000/C/1

Internal

adjustment

PS 2100/C/2/CT

PS 1200/C/2

PS 2100/C/2

PS 3500/C/2

PS4500/C/2

PS 6000/C/2

Max capacity

2100g/

10500ct

1000g 1200g 2100g 3500g 4500g 6000g 8000g

Tare range

-2100g

-10500ct -1000g

-1200g -2100g -3500g -4500g -6000g -8000g

Min load

0,5g/

2,5ct

20mg 500mg 500mg 500mg 500mg 500mg 500mg

Readability

0,01g/
0,05ct

1mg 10mg 10mg 10mg 10mg 10mg 10mg

Repeatability

0,01g/
0,05ct

1,5mg 10mg 10mg 10mg 10mg 15mg 15mg

Linearity

±0,02g/

0,05ct

±3mg ±20mg ±20mg ±20mg ±20mg ±30mg ±30mg

Working

temperature

+10°C - +40°C

Power supply

13,5 - 16V DC / 1,1 A

Drift sensitivity

2 ppm/°C in temperature +15° - +35°C

Pan size

195x195mm

Dimensions:

9

2. BASIC INFORMATION

2.1. Intended use

The purchased balance serves to determine the weighing value of loads in
laboratory environment. It is intended for application as a non-automatic
weighing instrument only, i.e. the material to be weighed is manually and
carefully placed in the center of the weighing pan. Weighing result should be
read only after stable reading has been obtained.

2.2. Inappropriate use

Do not use the balance as a dynamic weighing instrument. Even if small
quantities of weighed material are added or removed from the weighing pan of
the instrument, the reading should be taken only after stabilization of the
measurement result. Do not place any magnetic materials on the weighing pan,
as this can cause damage of the measuring system of the instrument. Be sure
to avoid impact shock and overloading the balance in excess of the prescribed
maximum measuring range (max capacity), minus any possible tare weight that
has been applied. Never use the balance in an environment endangered by an
explosion. This balance has not been adjusted for operation in explosive areas.
There must not be any modification made to the balance.

2.3. Warranty

Warranty is not valid at the following:

• Non-observation of the guidelines of this user manual,

• Use of balance other than specified in this manual,

• Alternation to or opening of the device,

• Mechanical damage and damage caused by media, natural water,

and tear,

• Inappropriate assembling or defects of electric installation,

• Overloading of the measuring instrument.

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2.4. Monitoring the metrological parameters of the instrument

Metrological characteristics of the balance requires periodical inspection
carried out by its operator. Inspection frequency is conditioned by ambient
conditions in which the balance is used, types of performed processes and
accepted quality management system in an organization.

2.5. Data included in this user manual

Please read the user manual carefully before assembling and startup, even if
the user is experienced with this type of weighing instruments.

2.6. Staff training

This balance should only be operated and maintained by personnel who is
trained and experienced in using this type of balances.

3. TRANSPORT AND STORAGE

3.1. Delivery check

Please check the packaging immediately upon delivery and the device during
unpacking for any visible signs of external damage.

3.2. Packaging

Please retain all parts of the original packaging should the balance be
transported in the future. Only the original packaging should be used for
dispatching the balance. Before packing, disconnect all attached cables and
remove any loose/movable parts (weighing pan, anti-draft shields, etc.). Please
place balance and its components in their original packaging, and protect them
against damage during transport.

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4. UNPACKING, ASSEMBLING AND STARTUP

4.1. Assembling and place of use

• Balance should be stored and used in locations free of vibrations and
shakes, free of air movement and dust.

• Ambient air temperature should not exceed the range of: +10

o

C ÷ +40oC

• Ambient relative humidity should not exceed 80%.

• During balance operation, ambient temperature in the weighing room should

not change more than 3°C within one hour,

• The balance should be located on a stable wall console desk or a stable
working table which is not affected by vibrations and distant from heat
sources.

• Take special safety measures when weighing magnetic objects, as part of
the balance is a strong magnet. Should such loads be weighed, use under
hook weighing option, which removes the weighed load from area influenced
by the balance’s magnet. For assembling the hook for under hook weighing
option see the bottom section of balance’s housing.
In order to avoid influence of static electricity on the measurement process,
ground the balance’s housing. the grounding bolt is located at the back sof
balance’s housing.

4.2. Unpacking

Carefully remove the balance from its packaging, remove the plastic and foil
transport protective elements and gently place the balance in its intended place
of use. Assemble the weighing pan, and other elements according to below
schema:

12

Assembling a balance with reading interval 10 mg:

Remove the adhesive tape

protecting the mass spring on
one of the (2),
Assemble the weighing pan (1)
on the rubber mandrels (3),

After assembling the balance

components, check whether the
weighing pan is firmly placed on
the rubber mandrels.

Assembling a balance with reading interval 1 mg

Remove the adhesive tape
protecting the mass spring on
one of the (3),
Assemble the weighing pan (2)
on the rubber mandrels (4),
Assemble the glass anti-draft
shield (1) which is located on the
top cover of balance’s housing,
After assembling the balance
components, check whether the
weighing pan is firmly placed on
the rubber mandrels.

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4.3. Leveling

Before plugging to mains, level the balance by turning the
adjustable feet in a way that the air bubble of the level is in its
central ring. The level is located at the back wall of balance’s
housing.

4.4. Standard equipment of a balance

• Balance.

• Weighing pan and anti-draft shield elements.

• Power adapter.

• User manual.

4.5. Cleaning

Balance should be cleaned with damp cloth by gentle wiping the smudges of
dirt. In order to clean the weighing pan of the balance, please remove it from
the rubber mandrels. Cleaning of the pan when assembled may cause

damage of the measuring system of the balance.

4.6. Plugging to mains

Balance can be connected to mains only with a power adapter that comes
standard with the balance. Nominal power supply of the power adapter
(specified on the data plate of the power adapter) should be compatible to
the power from mains. Plug the balance to mains – the plugging socket is

located at the back of balance’s housing. Balance display will light and show
name and number of software, after which balance will display 0.0000g. If
indication is different from zero, please press ZERO/TARE key.

4.7. Connecting peripheral devices

The balance must be unplugged from the mains before connecting or
disconnecting any peripheral devices (printer, PC computer). Use only
peripheral devices recommended by the manufacturer with your balance.
These have been ideally coordinated to your balance. On connecting a
peripheral device, plug the balance to mains.

14

5. BASIC FUNCTIONS

• Functions related to measuring units

- Setting default measuring unit <StUn>,

- Weighing in grams [g],

- Weighing in milligrams [mg] (in balances with d=0,001 g)

- Weighing in kilograms [kg] (in balances with d=0,01 g)

- Weighing in [ct],

- Weighing in units from beyond SI (available only in non-verified

instruments: [lb], [oz], [ozt], [dwt], [t], [mom], [gn].

• Functions related to working modes

- Parts counting < PcS>,

- Checkweighing (Control +/-) <HiLo>,

- Percent setup <Perc A>, <Perc B>,

- Density determination of solids <d_Co>

- Density determination of liquid <d_Li>,

- Totalizing <Add>,

- FiLL mode <FiLL>.

• Functions related to setting a balance to ambient conditions at a
workstation

- Enabling / Disabling autozero system <Auto>,

- Setting parameter of measurement result averaging <AuE>,

- Value release <ConF>,

- Weighing mode <rAPd>,

- Display backlight <bl>,

- Display brightness <bLbA>,

- Beep signal <bEEP>.

• Function relating to use of RS 232 interface

- Setting baud rate <bAud>,

- Continuous data transmission in basic measuring unit <CntA>,

- Continuous data transmission in current measuring unit <Cntb>,

- Automatic operation mode <rEPL>.

Balance PS series can be used to weigh loads under the weighing platform – i.e.
under hook weighing option.
Balance software enables generating a report from adjustment process in a form of
a printout containing modifiable data (see GLP procedures).

15

6. KEYBOARD

ON/OFF key enables switching on and off balance’s display.

If switched off balance components other than the display are
powered, and balance is in stand-by mode.

F key. Function key, which enables quick entering the
settings of an active working mode.

MODE key for selecting balance’s working mode.

UNITS key, changes measuring units.

PRINT/ENTER key - Sends current display status to a

peripheral device (PRINT) or accepts selected value of a
parameter or function (ENTER).

ESC/ZERO/TARE key – zeroing / tarring of balance’s
indication.

Adjustment – function key of immediate initiating the
adjustment / calibration process.

Function key for entering the main menu of a balance.

Navigating arrows for moving in balance’s menu or changing
parameter value

II

The marker of second weighing range.

16

7. START-UP

When plugged to mains, the balance displays name and number of software, and
afterwards proceeds to weighing mode.

7.1 Balance temperature stabilization period

Before start of measuring processes, it is necessary to wait until the balance is
thermally stabilized. It is a period of so called balance self-heating. In case of
balances PS series self-heating period takes approximately 30 minutes. The
specified time interval refers to balances that have been stored in room temperature
before plugging to mains.
For balances that were stored in much lower temperatures before plugging to mains
(e.g. during winter period) thermal stabilization should last approximately 4 hours.
Correct operation of a balance is possible within temperature range specified in the
technical parameters, see point 1. If the balance is placed in area which ambient
temperature is out of temperature range specified in the technical data, then
balance’s display may signal such situation by lighting an appropriate marker (a
black triangle).

In case the balance displays the marker, increase or decrease ambient
temperature, depending on present temperature value. It is recommended that
ambient temperature changes at balance’s place of use are very small (slow).

17

8. USER MENU

Balance menu is divided into 7 basic function groups. Each group has individual
name starting with capital letter P.

8.1. Moving through user menu

An operator moves through balance menu using keys on overlay’s keyboard:

Setup key. Entering balance’s main menu.

Selecting group of parameters one by one downwards or

changing parameter value by one value downwards.

Selecting group of parameters one by one upwards or changing
parameter value by one value upwards.

Selecting group of parameters for activating. On pressing the

key, the display indicates the first parameter in a selected group.

Exit to previous menu level, e.g. to main menu.

Esc/TARE key. Abandon parameter changes.

PRINT/ENTER key. Accept / confirm introduced changes.

18

Name of function groups and their content:

P1 CAL [Adjustment/Calibration]

P1.1 iCAL | [internal adjustment]
P1.2 ECAL | [external adjustment]
P1.3 tCAL | [temperature adjustment]
P1.4 ACAL | both/nonE/tenno/tinnE [automatic adjustment]
P1.5 CALt | 1 h ÷ 12h [time of automatic adjustment]
P1.6 CALr | YES/no [report from adjustment]

P2 GLP [Good Laboratory Practice ]

P2.1 USr | _ [name of user]
P2.2 PrJ | _ [name of project]
P2.3 Ptin | YES/no [printout of measurement time]
P2.4 PdAt | YES/no [printout of measurement date]
P2.5 PUSr | YES/no [printout of user name]
P2.6 PPrJ | YES/no [printout of project name]
P2.7 PId | YES/no [printout of balance’s factory number]
P2.8 PFr | YES/no [printout of frames]

P3 rEAd [Main user parameters]

P3.1 AuE | Stand/Slouu/FASt [filtering level]
P3.2 ConF | FASt_rEL/Fast/rEL [value release]
P3.3 Auto | On/OFF [autozero]
P3.4 Ldi9 | ALuuAYS/never/uu_StAb [blanking last digit]
P3.5 rAPd | YES/no [weighing mode RAPID]

P4 Print [Data transmission – RS 232]

P4.1 bAud | 2400/4800/9600/19200 [baud rate]
P4.2 CntA | YES/no [continuous printout in basic measuring unit]
P4.3 Cntb | YES/no [continuous printout in current measuring unit]
P4.4 rEPL | YES/no [manual or automatic operation]
P4.5 PStb | YES/no [result printout: stable or unstable]
P4.6 Lo | 000.0000 [min mass threshold for automatic operation]

19

P5 Unit [Measuring units]

P5.1 StUn | g/mg/kg/ct/lb/oz/ozt/dwt/t/mom/G [basic measuring units – e.g.
gram]

P5.2 mg | YES/no [mg – milligram]
P5.3

└

g | YES/no [kg – kilogram
P5.4 Ct | YES/no [ct – carat]
P5.5 lb | YES/no [lb – pound]
P5.6 oZ | YES/no [oz – ounce]
P5.7 oZt | YES/no [ozt – troy ounce]
P5.8 dwt | YES/no [dwt – pennyweight]
P5.9 t | YES/no [t – tael]
P5.10 nno | YES/no [mom - momme]
P5.11 G | YES/no [gr – grain]

P6 Func [Functions]

P6.1 FFun | ALL/PcS/HiLo/PrcA/Prcb/d_Co/d_Li/Add/FiLL
[selection of working modes]

P6.2 PcS | YES/no [parts counting]
P6.3 HiLo | YES/no [checkweighing]
P6.4 PrcA | YES/no [percent setup with reference to

weighed standard]

P6.5 Prcb | YES/no [percent setup with reference to
declared standard]

P6.6 d_Co | YES/no [density determination of solids]
P6.7 d_Li | YES/no [density determination of liquids]
P6.8 Add | YES/no [totalizing]
P6.9 Fill | YES/no [working mode FiLL]

P7 othEr [Other functions]

P7.1 bL | On/Aut/OFF [display backlight]
P7.2 bLbA | no/20/30/40/50/60/70/80/90/100 [display brightness]
P7.3 bEEP | On/OFF [beep sound on pressing keys]

P7.4 PrnS | [printout of balance parameters]

20

8.2. Moving through user menu

CAUTION

Changes introduced in balance memory will be saved on return to
weighing with procedure of saving changes.
Press ESC/TARE key for several times, until the display shows
command SAvE?.

When display indicates the above command for saving changes, press one of
below options:

 PRINT/ENTER – save changes
 or ESC/TARE – abandon introduced changes, and leave to

balance menu.

After pressing an appropriate key, balance goes back to weighing mode.

21

9. WEIGHING

Before start of weighing process or in case of essential change of ambient
conditions at a workstation (e.g. ambient temperature change at a workstation more
than 3

o

C) the balance requires adjusting. the procedure of balance adjustment is

described further in this user manual.

• Before start of weighing procedure, it is recommended to load the balance’s

weighing pan a few times with mass close to balance max capacity,

• Check if unloaded balance indicates “precise zero” -

and whether

measurement is stable -

, if not press ESC/TARE key;

• Press Units key to set a measuring unit:

[g], [mg], [ct], and also if enabled in factory menu [kg], [lb], [oz], [ozt], [dwt],
[t], [mom], [gn],

• place weighed object on balance’s weighing pan and read result only on
stabilization of measurement result,

• mass indication of a load placed on balance’s weighing pan can be tarred for
multiple times by pressing ESC/TARE key ((pay attention not to exceed
maximal capacity of a balance by applying multiple tare function).

During times between carrying out the following measurement series do not unplug
the balance from mains. It is recommended to switch off balance’s display by
pressing ON/OFF key. On repeated pressing of the ON/OFF key the balance is
ready for operation and carrying out the following measurements.

22

9.1. Selection of basic measuring unit

Function is used to set the measuring unit which will be displayed on balance
switching on.

In order to set the measuring unit go to submenu P5 Units

press

key for a few times. The display indicates available

measuring units in turns.

After selecting the basic measuring unit press PRINT key. The balance
returns to displaying parameter name.

23

Available settings:

• For verified balances, a user can select from the following measuring units:
[g], [mg], [ct]

• For non-verified balances, a user can select from the following measuring
units: [g], [mg], [kg], [ct], lb], [oz], [ozt], [dwt], [t], [mom], [gn].

Go back to weighing mode with procedure of saving changes

(see point - 7.1.2. – return to weighing).

CAUTION:

On switching on, the balance will start operating with set basic measuring
unit.

9.2. Temporary measuring unit

Function enables selecting a measuring unit which will be indicated next to
mass readout during weighing process. Set measuring unit will be in use from
the moment of its activation until its change or switching off and on the balance.
Each pressing the Units key, causes change of the measuring unit.

Available settings:

• For verified balances, a user can select from the following measuring units:
[g], [mg], [ct]

• For non-verified balances, a user can select from the following measuring
units: [g], [mg], [kg], [ct], lb], [oz], [ozt], [dwt], [t], [mom], [gn].

24

9.3. Setting accessibility of balance working modes

This group of parameters enables the user to declare functions (working
modes) which are accessible on pressing of MODE key.

Enter group of parameters P6 Func.

25

9.3.1. Selection of working modes available for a user

Function enables selecting (by pressing MODE key) which working modes
are accessible during weighing function – if all – then select (ALL) and if
only one from all available (described below).

After setting the parameter press PRINT key. Balance goes back to displaying
submenu name P6.1 FFun.
If a mode other than ALL is selected, procedure of returning to weighing mode
differs from other ones.

26

If for instance PcS mode is selected, follow procedure in accordance with point

14.1 point, to return to weighing:

Press Esc/TARE key, balance returns to weighing.

27

9.3.2. Means of selecting one of available working modes

Balance user can enable or disable modes which are not used in the
weighing process. This provides quicker access to modes used on a
balance.

On – mode available OFF – mode disabled

28

Return to weighing

(see point 8.2. – return to weighing).

9.4. Dual range balance (PS 200/2000/C)

Balance PS 200/2000/C series is a dual range weighing instrument. The accuracy
of the I weighing range is d1 = 0,001 g, and of the II weighing range it is d2 = 0,01
g.
Transfer from weighing with the accuracy of the I weighing range to weighing with
the accuracy of the II weighing range takes place automatically on exceeding Max1
point at 200 g (with no operator activity needed). On switching to weighing with the
accuracy of the II weighing range, the display signals it by indicating II pictogram on
its right side, and an additional marker of last but one digit of the weighing result.

From now on the balance weighs mass with the accuracy of the II weighing range.

In order to return to weighing in the accuracy of the I weighing range:

• Take the weighed load off the weighing pan

• As the indication returns to zero and pictograms

→0←

and are lit

press

→

0/T

←

key on balance’s keyboard.

The balance returns to weighing with the accuracy of the I weighing range, and II
weighing range pictogram and marker of the last but one digit are blanked.

29

10. BALANCE M AIN PARAMETERS

It is possible to adjust balance’s operation to ambient conditions at a workstation
(by setting filter range and value release parameters) or user requirements
(autozero settings, last digit visibility). These parameters are set in group
<P3 rEAd>.

10.1. Setting level of filtering

Procedure:

- using UNITS key to select desired value of filter settings

StAnd – (normal) – normal operation conditions
Slouu – (slow) – harsh operation conditions - vibrations, etc.
Fast – (fast) – good operation conditions – no vibrations, etc.

Return to weighing

(see point – 8.2. – return to weighing).

CAUTION:

30

The higher filtering setting the longer weighing time.

31

10.2. Value release

Due to various ambient conditions at workstations, and in order to set balance
to present conditions, it is necessary to determine the value release parameter
as: FAST_rEL, Fast or rEL. Depending on selected option, weighing time will
be shorter or longer.

Fast_rEL - fast + reliable
Fast - fast
rEL - reliable.

Return to weighing

(see point – 8.2. – return to weighing).

32

10.3. Autozero function

In order to ensure balance’s precise mass indication, autozero (Auto) software
parameter has been introduced. The application of this function is automatic
control and correction of zero indication. When function is enabled, it
compares balance indications at declared time interval e.g. 1 s, on conditions
that weighing pan is unloaded and display indication is close to zero.
If results vary less than declared AUTOZERO range e.g. one division, balance
will zero automatically, display marker of stable measurement result

and

precise zero marker

.
If AUTOZERO function is enabled, then each weighing process starts from
precise zero point. There are, however, some cases when this function can be
a disturbing factor of measuring process; for instance very slow placing of load
on the weighing pan (e.g. load pouring) – in such case system of zero
indication correction can also correct actual indication of loaded mass.

OFF – autozero disabled
On – autozero enabled.

Return to weighing

(see point – 8.2. – return to weighing).

33

10.4. Blanking of the last digit on the display

Function enables blanking of the last displayed digit.

ALuuAYS – always
nEuEr – never
uu_StAb – when measurement result is stabilized.

Return to weighing

(see point – 8.2. – return to weighing).

34

10.5. Weighing mode RAPID

Weighing mode RAPD is located in menu parameter P3.rEAd and it offers two
options:
RAPID = NO – balance operates with settings as set in menu AUE and CONF, i.e.
standard weighing.
RAPID = YES – (default settings) balance operates with settings specific for
software mode “FILL”, and:

- The value of CONF parameter is automatically set to: Fast+rel,

independently on previous setting of this parameter;

- The value of AuE parameter is automatically set to: Standard,

independently on previous setting of this parameter;

-

The value of Stabilization time parameter is automatically decreased
(factory setting is decreased by 4). Such parameter setting speeds up the
time of stability pictogram

appearance on the display.

The values of AuE and CONF parameters are editable if mode rAPd is enabled for
setting shorter or longer measurement time.

Mode enabling or disabling:

35

11. OTHER PARAMETERS

Balance PS series features a set of parameters which enable influencing its
functionality. The parameters are contained in group: P7 othEr and they are:
backlight and “beep” signal and printout of all balance parameters through RS 232
port.
In order to edit the above parameters enter menu group P7 Other.

36

11.1. Backlight of weighing result (display backlight)

OFF – backlight disabled
On – backlight enabled
Aut – backlight disabled automatically if weighing result does not

change within10 seconds.

Return to weighing

(see – 8.2. – return to weighin g) .

CAUTION:

Balance software has implemented option of automatic backlight switch off
bl = Aut. In case of this setting, the backlight is switched automatically off if
weighing results does not change within 10 seconds. Backlight is automatically
activated at the moment of weighing result change on balance display.

11.2. Adjusting display brightness

37

100 - maximum brightness of display backlight
20 - minimum brightness of display backlight
no - backlight off

38

11.3. “Beep” sound – reaction on pressing function key

OFF – signal of pressing function key disabled
On – signal of pressing function key enabled.

Return to weighing

(see – 8.2. – return to weighin g) .

39

11.4. Printout of all balance parameters through RS 232 port

After pressing <right arrow> navigating key, balance parameters are sent to a
peripheral device connected to balance’s RS 232 port.

Return to weighing

(see – 8.2. – return to weighin g) .

40

12. BALANCE ADJUSTMENT

As the gravitational acceleration force has different value at various latitudes and
altitudes, a balance should be adjusted to present working conditions. This process
should take place at the first installation of the instrument on site and at its every re­location – as in case of ambient temperature changes.
In order to ensure the highest weighing accuracy, it is recommended to periodically
introduce to balance memory a corrective factor of indications in relation to a mass
standard – i.e. balance adjustment.

Adjustment should be carried out:

- Before the beginning of weighing procedure,

- If long breaks between following measuring series occur

- If temperature inside the balance changes more than: 3°C.

Types of adjustment:

- Internal automatic adjustment
* triggered by temperature change
* triggered by elapsing time

- Manual internal adjustment
* initiated from balance’s keyboard

- Adjustment with external weight
* with declared mass which cannot be modified.

CAUTION

In case of verified balances (with internal automatic adjustment system)

only the automatic internal adjustment and manual internal adjustment
system are available for a user.
In verified balances PS series with external adjustment system, adjustment
process is blocked (not available) for a user.

Perform the calibration when there is no load on the pan!

Remember to carry out adjustment process only when there is no load on the
weighing pan! In case there is load on the weighing pan, the display will
indicate a command Er1 Hi. It is comment of unloading the pan. Adjustment
process can be aborted if necessary by pressing Esc/TARE key.

41

12.1. Internal adjustment

Adjustment process can be initiated automatically or manually.
Manual means of activating adjustment procedure is realized by pressing CAL
key on balance’s keyboard. System of automatic adjustment will carry out the
process fully automatically inform the operator on successive process stages.

Cycle of automatic adjustment process:

- balance software detects necessity of carry out adjustment and signalizes it by

Celsius degree pictogram or by black colour pictogram on balance display

- since pictogram occurrence, time interval of 5 minutes is counted within which

weighing procedure can be completed

- as the 5 minutes time elapses, balance display indicates message CAL_30 and

starts counting down from 30..29..28 to 0 (indicated value is the counter)

- balance user has 30 seconds to make a decision:

 in order to start adjustment, do not take any actions
 in order to complete weighing procedure, press ESC/TARE key, If pressed,

balance returns to weighing procedure and displays last weighing result. In
5 minutes balance will again indicate CAL_30 message.

- the adjustment process can be postponed for multiple times, but it needs to be

stressed that long postponing of adjustment may be a reason of bigger errors of
weighing process. The errors are effect of temperature changes and as a
consequence changes of balance sensitivity.

Automatic adjustment process takes place in three different cases:

- adjustment on plugging the balance to mains. After approximately 6

minutes from plugging the balance to mains, it automatically initiates
adjustment process.

- AS is equipped with very precise system for monitoring temperature. At

each adjustment process, the temperature is saved in system. The next

42

adjustment is automatically initiated if temperature changes more than 3oC
from last saved temperature.

- adjustment triggered by elapsing time. It is possible to declare time

intervals which are a criteria for balance adjustment. Accessible settings
are: adjustment after 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 hours since last
carried out adjustment procedure.

CAUTION

Declaring time interval for balance adjustment is available only in
non-verified balances. In case of verified balances the time interval
between following adjustments is set for 3 hours

12.2. Menu adjustments settings

P1 CAL

P1.1 iCAL |
P1.2 uCAL |
P1.3 tCAL |
P1.4 ACAL | both
P1.5 CALt | 1 h
P1.6 CALr | YES

43

• P1.1 iCAL – Internal adjustment

Start of internal adjustment process. Adjustment is conducted automatically, and
no operator assistance is required. If weighing pan of the balance is loaded,
balance will display a command to unload the weighing pan. If weighing pan is
loaded with relativaly small mass (up to 4 % of balance max capacity) than
adjustment process will be carried out automatically, but measuring results may
differ by the amount that was present on balance weighing pan.

or CAL function key

P1.2 ECAL – External adjustment (with an external weight)

adjustment with external weight, which value is saved in factory menu of
balance, function unavailable in verified balances.

balances with internal adjustment balances with external adjustment

P1.3 tCAL – Adjustment test

mass comparison of internal adjustment weight with its value saved in balance
memory.

balances with internal adjustment balances with external adjustment

44

P1.4 ACAL – Automatic adjustment (balances with internal adjustment

system)

determination of factor, which condirions start of automatic internal adjustment

nonE – none of factors will cause start of adjustment
tEmP – adjustment triggered by change of temperature
timE – adjustment triggered by time interval set in
both – adjustment triggered by time and temperature.

45

P1.5 CALt – Time of automatic adjustment (balances with internal
adjustment system)

Determination of time interval, after which automatic adjustment process is
initiated.

P1.6 CALr – printout of adjustment report

Printout activated on completion of automatic adjustment procedure

balances with internal adjustment balances with external adjustment

no – report printout disabled
YES – report printout enabled

Return to weighing

(see point – 8.2. – return to weighing).

46

12.3. Adjustment test

12.3.1. Balances with internal adjustment

Adjustment test is a comparison of internal adjusting weight with its value
stored in balance’s memory. This process is automatic and its result is
shown on the display (if a balance is connected to a computer or a printer
through RS 232 socket, data on adjustment test is printout). Press

ESC/TARE key to return to previous display.

Return to weighing

(see point – 8.2. Return to weighing).

47

12.3.2. Balances with external adju stment

It is mass comparison of external adjustment weight with its value stored in
balance’s memory during adjustment process. This process is automatic
and its result is shown on the display (if a balance is connected to a
computer or a printer through RS 232 socket, data on adjustment test is
printout). Press ESC/TARE key to return to previous screen.

Return to weighing

(see point – 8.2. Return to weighing).

48

12.4. Manual adjustment

12.4.1. Internal adjustment

Press function key
or
follow below guidelines

The balance performs internal adjustment automatically. During
adjustment process do not load the weighing pan with any load.

On completion of adjustment process, balance saves its result in memory
and returns to weighing mode.

CAUTION:

- Press ESC/Tare key to abort adjustment process

- If during adjustment process, weighing pan of a balance is

loaded, than balance display will show order informing on error
occurrence. Adjustment process will be stopped. As weighing pan is
unloaded, the adjustment process will continue and complete .

49

12.4.2. External adjustment

The external adjustment in balances PS series should be carried out with
an external mass standard / weight class F

2

Start of external adjustment process

balances with internal adjustment balances with external adjustment

Balance will display a command ordering unloading of weighing pan
unloAd (weighing pan should be empty). When weighing pan is unloaded,
press PRINT key. The balance determines mass of empty pan. Place an
external adjustment weight with mass determined on balance’s display and
press PRINT key. On completing adjustment process the balance returns
to submenu P1.2 ECal.

Return to weighing

(see point – 8.2. Return to weighing).

If a balance is verified, then user does not access to carrying out external
adjustment process.

50

12.5. Adjustment report printout

On completion of any type of adjustment process, the balance enables
preparing a report from adjustment process. The report can be printed on a
connected printer and sent to a computer and saved in a form of file for
records. Printout process is described in details in point 9.2 of this user manual.
The user can select between two options.

no – report is not printed
YES – report is printed

Remember, that if the parameter is set for YES, then a report is generated and
sent automatically.
Content of report from adjustment process depends on settings of GLP
parameters. Any option in the GLP submenu which attribute is YES is included
in a report from adjustment process

P2 GLP (Good Laboratory Practice)

P2.1 uSr |
P2.2 PrJ |
P2.3 Ptin | YES
P2.4 PdAt | YES
P2.5 PuS | YES
P2.6 PPrJ | YES
P2.7 PId | YES
P2.8 PFrn | YES

Apart from information set in menu group the report contains:

• Mass of adjustment weight stored in balance’s memory from last
carried out adjustment;

• Mass of adjustment weight determined in current adjustment process;

• Adjustment deviation, i.e. difference between the two mass records.

51

13. DETERMINING CONTENT OF A PRINTOUT FOR GLP PROCEDURE

P2 GLP is group of the parameters which enables declaring variables that are

present on an adjustment printout and printout activated after a measurement.

P2 GLP

P2.1 uSr |
P2.2 PrJ |
P2.3 Ptin | YES
P2.4 PdAt | YES
P2.5 PuS | YES
P2.6 PPrJ | YES
P2.7 PId | YES
P2.8 PFrn | YES

• P2.1 USr

The parameter enables determining name of a operator who works with
the balance. User name contains maximally 8 alphanumeric characters.
The name is inserted using navigating arrows (keys) on balance’s
keyboard and PRINT key.

52

Accessible characters and their equivalents displayed by the balance

An instance of a user name inserted to a balance using capital letters
takes below form:

53

OP1 WILK (operator1 WILK)

An instance of a user name inserted to a balance using small letters takes
below form:

Op1 wilk (operator 1 wilk)

• P2.2 PrJ

The parameter enables determining name of a project (e.g. related to a
specific type of weighing process).

An instance of project name inserted to a balance using capital letters
takes below form:

PRRRADWAG

An instance of project name inserted to a balance using small letters takes
below form:

prrradwag

• P2.3 Ptin

Option determining presence of measurement time on a printout (data on
measurement time is acquired from a connected printer).

• P2.4 PdAt

Option determining presence of measurement date on a printout
(measurement date is acquired from a connected printer).

• P2.5 PUSr

54

Option determining presence of user name on a printout.

• P2.6 PPrJ

Option determining presence of project name on a printout.

• P2.7 Pld

Option determining presence of balance factory number on a printout.

• P2.8 PFr

Option enabling printing frames on a printout.

For above parameters please select one of two available settings:

no – variable absent on a printout
YES – variable present on a printout

Return to weighing

(see point – 8.2. Return to weighing).

55

14. BALANCE WORKING MODES

- Weighing mode – bASic

- Parts counting – PcS

- Checkweighing – HiLo

- Percent setup with reference mass determined by weighing – PrcA

- Percent setup with reference mass determined by a user – PrcB

- Density determination of solids – d_Co

- Density determination of liquid – d_Li

- Totalizing – Add

- Working mode Fill – FiLL

Press MODE key:

Pressing MODE key causes display of the first available mode. Each next pressing

of

or key causes displaying name of next available mode. The way of

setting a working mode is described in further section of this manual.

56

14.1. Parts counting of the same mass

Balance in its standard version is equipped with an option for counting parts
and small objects of the same unit mass. Parts counting mode does not
cooperate with other working modes of balance PS series.

• Enable PcS mode:

• Press key to set sample quantity: 10, 20, 50 or FrEE

57

• in order to select one of the options, e.g. 20 pcs press ENTER/PRINT key

and as the display indicates value “20” proceed as shown on below figure

• If option FrEE (sample quantity is declared by a user) is selected, insert

sample quantity used for determining mass of single part

Press

key to select a digit to be altered,

58

Use

key to select digit value,

• Accept inserted value by pressing PRINT key

• Display indicates a command LoAd – load the weighing pan with as many

details as inserted while determining sample quantity

• Press PRINT key – balance indicates sample’s quantity (pcs pictogram is

visible on the display)

• add remaining parts, the display indicates their total quantity.

Return to weighing

59

CAUTION:
While determining sample quantity, and before accepting it, it is necessary
to wait until stable measurement pictogram is displayed. Only if
visible on balance’s display, it is allowed to accept the declared quantity of

parts by pressing PRINT key. Otherwise balance will not accept the
measurement.

14.2. Checkweighing (HiLo) with reference to set standard

• Enter the checkweighing mode

60

• During setting limit values the following relations occur:

61

SET LOW LIMIT (LOW THRESHOLD)

- digit selection; - set digit value; - accept inserted digit value

SET HIGH LIMIT (HIGH THRESHOLD)

- digit selection; - set digit value; - accept inserted digit value

62

CAUTION:

If by mistake the value of low threshold is set higher than high threshold,
balance will indicate error message and return to weighing.

Return to weighing

14.3. Percent setup

Balance software enables controlling deviation (in %) of weighed loads with
determined reference mass. Mass of a reference load can be determined by
its weighing (PercA) or entered to balance memory by a user (PercB).

63

14.3.1. Reference mass determined by weighing

• Enter PrcA mode

• on balance weighing pan place a load which mass will be accepted as

the reference

• press PRINT to accept this working mode

• after few seconds indication 100,00% will be displayed.

From now on the display will not indicate mass of weighed load but deviation of
mass placed on the pan in relation to the reference (in %).

64

14.3.2. Reference mass inserted to balance memory by a user

• Enter PrcB mode.

• Display will indicate as above

• Using function keys

Select a digit

Select digit value

• Determine the value of reference mass, insert it to balance memory and
accept it by pressing PRINT key – display will indicate: 0,00%

From now on the display will not indicate mass of weighed load but deviation
of mass placed on the pan in relation to the reference (in %).

65

Return to weighing

14.4. Working mode FiLL

Working mode FiLL enables two settings:

FiLL = NO – mode disabled, i.e. not available in the working modes.
FiLL = YES – mode enabled, i.e. available in the working modes.

If FiLL is enabled, then the balances operates with settings, that are stored in
balance’s settings as default and ensuring quicker operation. The settings
automatically decrease Autozero range to 1 reading interval. Mode activation is
signaled by a black triangle pictogram visible on display’s right hand side (and
above the measuring unit). Working mode FiLL is set to YES as default, thus it is
accessible in the working modes. The mode can be disabled from the working
modes by setting it to NO. To disable FiLL mode enter menu of available modes –
see point 9.3.2 of this user manual.

66

Enabling FiLL mode in the working modes

The balance operates in accordance with the settings of AUE and CONF options.
The options enable setting shorter or longer measurement time.

Disabling FiLL mode

On disabling FiLL mode, the measurement are carried out in accordance with user
settings.

67

14.5. Density determination of solids and liquids

Optional equipment of balances PS series AS is a kit for determining density of
solids and liquids. In order to assemble the density kit on the balance, remove
the weighing pan and anti-draft shield from the balance. In the place of the
weighing pan assemble the weighing pan with stand (1) and place beaker’s
basis (2) on it.

Components of the density kit:

1

Weighing pan with stand

7

Thermometer

2

Bottom weighing pan of density
determining kit for solids

8

Thermometer handle

3

Flexible connector

9

Sinker

4

Top weighing pan of density
determining kit for solids

10

Beaker basis

5

Beaker

11

Additional stand for set of pans or
a sinker

6

Hook

12

Additional set of pans for

determining density of solids,
which density is lower than density

of water.

68

14.5.1. Testing thickness solids

Density determination of solids can be conducted in two pre-defined types
of liquids or user-defined liquid with specified density:

• H2O (distilled water),

• C2H5OH (spirit 100% +/- 0.1% in temp. 20

0

C),

• AnotHEr (another liquid with specified density)

In case of determining density in water or alcohol it is necessary to specify
their temperature. For another liquid, its value (density) is inserted from
balance keyboard. Density determination is conducted by weighing a
sample first in the air (top weighing pan (4) of the density kit), and then
weighing the same sample in liquid (on the bottom weighing pan (2) of the
density kit). As the sample is weighed in liquid, the result of density
determination is automatically indicated on balance display.

14.5.2. Testing thickness of liquid

Basic element for determining density of liquids is a glass sinker (9). Its
volume is precisely determined and given on sinker’s hanger. Before
starting liquid density determination, insert the value of sinker’s volume to
balance memory. In order to measure the density of liquid, first determine
mass of the sinker in the air. Then measure mass of the same sinker in
tested liquid. The result of liquid density determination is automatically
indicated on balance display.

69

14.6. Totalizing

Totalizing mode is basically adding the following components in order to prepare a
mixture. After adding following component of the mixture, the balance totalizes
mass of the mixture and exposes its total mass on the display. During totalizing
process mass of each added component is sent through RS232 interface to a
connected computer of a printer (e.g. Kafka printer).

CAUTION

Totalizing mode functions only in grams.

Enter the working mode: Add (Totalizing).

Black pictograms indicate that the working mode “Totalizing” is enabled.

70

71

Return to weighing:

15. RS 232 FUNCTIONS

P4 Print

P4.1 bAud | 4800
P4.2 CntA | YES
P4.3 CntB | YES
P4.4 rEPl | YES
P4.5 PStb | YES
P4.6 Lo | 0.005

P4.1 bAud - baud rate setting (speed of transmission)
P4.2 CntA - continuous data transmission in basic measuring unit
P4.3 CntB - continuous data transmission in current measuring unit
P4.4 rEPl - setting operation mode for RS 232 output (manual / automatic)
P4.5 PStb - stable / unstable measurement for RS 232 transmission
P4.6 Lo - minimal mass required for activation of automatic printout

72

15.1. Baud rate

Select required baud rate value

- 2400 bit/s

- 4800 bit/s

- 9600 bit/s

- 19200 bit/s.

Return to weighing

(see point 8.2. – return to weighing).

73

15.2. Continuous transmission

15.2.1. Continuous transmission in basic measuring unit

no – continuous transmission disabled
YES - continuous transmission enabled

Return to weighing

(see point – 8.2. – return to weighing).

74

15.2.2. Continuous transmission in current measuring unit

no – continuous transmission disabled
YES - continuous transmission enabled

Return to weighing

(see point – 8.2. – return to weighing).

75

15.3. Settin g operation mode for RS 232 interface

no – manual operation (enabled on pressing PRINT key)
YES – automatic operation (enabled on stabilization of weighing

result).

Return to weighing

(see point – 8.2. – return to weighing).

Automatic operation takes place according to the following scheme:

 press Esc/TARE key to zero the balance (display will indicate

pictograms of stable measurement

and precise zero )

 place the load, balance will send first stable measurement through the

RS232 interface

 remove the weighed load from the weighing pan,
 next measurement can be conducted if a weighing result equals +/- 50

reading units from zero (it is not necessary to reach precise zero to
start another measurement).

76

15.4. Determination of data type sent through RS 232 output

no – sending stable or temporary (unstable) weighing result
YES – sending stable weighing result.

Return to weighing

(see point - 8.2. – return to weighing).

77

15.5. Minimal mass required for activation of automatic printout

Balance software is equipped with a function for setting automatic operation.
While in automatic operation, data will not be transmitted through RS 232 to a
connected computer or printer until mass reading is above Lo value.

• Press

key to select a digit which should be changed;

• Press key to change value of selected digit.

Return to weighing

(see point – 8.2. – return to weighing).

78

16. COOPERATION WITH A PRINTER OR A COMPUTER

CAUTION

A peripheral device that is connected to RS 3232 output of a balance, has
to be powered from the common low voltage power network equipped with
common anti-shock protection in a way to preclude possible occurrence of
different potentials in zero cables of the peripheral device and the balance.

Transmission parameters programmed in a balance:

- Baud rate - 2400 – 19200 bit / s

- Data bits - 8

- Stop bit - 1

- Parity control - none.

The value indicated on balance display can be sent through RS 232 output to a
peripheral device in one of four accessible ways:

• manually – on pressing PRINT key

• automatically – on stabilization of weighing result

• continuously – on activation of a function or sending a

command

• on command sent from a peripheral device (see additional functions).

Value indicated on balance’s display can be sent through RS232 output in the
following form:

• stable – data is sent immediately on stabilization of weighing

result

• unstable – on pressing of PRINT key causes immediate sending

of display status to a peripheral device (on a printout
such status is marked with <?> symbol proceeding the
weighing result).

79

16.1. Cross-section through connecting conductors

BALANCE

COMPUTER

2 (RxD)

3 (TxD)

3 (TxD)

2 (RxD)

4 (DTR)

6 (DSR)

5 (GND)

5 (GND)

6 (DSR)

6 (DTR)

7 (RTS)

8 (CTS)

8 (CTS)

7 (RTS)

80

16.2. Printing date with specified date and time

Every weighing result can be printed with specification of measurement date and
time. The presence of date and time on a printout is conditioned by connection of
printers type Kafka 1/ Z or Kafka SQ S to a balance.
When connected, go to balance menu and set parameters from group P2 GLP:

PdAt - YES
Ptin - YES

16.3. Cooperation with statistic printer Kafka SQS

On connecting a statistic printer KAFKA SQ S to a balance, it is possible to carry
out statistics from completed measurements. An instance of a printout including
statistics from series of measurement:

1 9:02:15 + 7.0016 g
2 9:02:39 + 5.0152 g
3 9:02:58 +

12.0171 g
4 9:03:15 + 9.9937 g
5 9:03:34 + 12.0169 g
6 9:03:48 + 22.0111 g

Date 13.09.2001 Time 9:04
n 6 batch quantity

sum x 68.0556 g total mass of samples

x

11.34260 g average value

s 5.92328 g standard deviation
srel 52.22 % variance factor
min 5.0152 g min value
max 22.0111 g max value
R 16.9959 g differen
ce max – min

81

16.4. Format of data sending

Weighing result can be sent to a peripheral device by pressing PRINT key on a
balance keyboard or by setting a control command from computer level.

16.5. Format of data sent on pressing of PRINT key

Depending on setting of P4.5 PStb parameter only stable measurement or
instantaneous mass indication will be sent.

CAUTION:

For verified balances printout of instantaneous measurement data is
blocked.

Printout format

1 2 3

4 - 12

13

14 - 16

17

18

stability

marker

space

sign

mass

space

unit

CR

LF

stability marker – [space] if stable

- [?] if unstable

- [^] if there is an error of range exceeding on +

- [v] if there is an error of range exceeding on -

sign – [space] for positive values or [-] for negative values
mass – 9 marks alignment to the right
unit – 3 marks alignment to the left

82

16.5.1. Format of data sent as response for commands genera t ed
from a computer

On receipt of a command, balance responses with:

XX_A CR LF – command understood, in progress
XX_I CR LF – command understood, but currently not available
XX _ ^ CR LF – command understood, but max range is exceeded
XX _ v CR LF – command understood, but min range is exceeded
XX _ E CR LF – error occurred while carrying out the command – time limit

exceeded while waiting for stable measurement result (time limit

is characteristic parameter of balance)
XX – name of command
And followed by:

1 - 3

4 5 6

7

8 - 16

17

18 - 20

21

22

Command

space

stability

marker

space

sign

mass

space

unit

CR

LF

Command – 1 ÷ 3 characters
stability marker – [space] if stable

– [?] if unstable
– [^] if there is an error of range exceeding on +

– [v] if there is an error of range exceeding on ­sign – [space] for positive values or [-] for negative values
mass – 9 marks alignment to the right
unit – 3 marks alignment to the left

83

17. UNDER HOOK WEIGHING

In standard analytical and precision balances loads can be weighed under the
weighing pan. Such means of operation requires placing a balance on a uplifted
position. RADWAG offers a rack for under hook weighing. The rack is an optional
equipment offered for balances PS series.

For under hook weighing follow below procedure:

• Remove plastic hole plug in basis of a balance;

• There is suspension place for hook visible in the hole – the suspension is

installed permanently to balance mechanism;

• In the hole install the hook for under hook weighing - the hook is standard
equipment of a balance. Weigh loads using under hook option;

• As under hook weighing is finished, close the hole in balance basis
with plastic hole plug.

CAUTION:

The suspension for hook must not be turned, twisted or manipulated
in any direction. Such actions may cause damage to balance
mechanism.

Mass of all additional elements of under hook weighing kit, like: the hook,
weighing pan, string, etc. should be zeroed by pressing Esc/TARE key.

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18. LIST OF COMMANDS COMPUTER – BALANCE

• Function TARE
Command T CR LF (balance tarring)

• Function ZERO
Command Z CR LF (balance zeroing)

• Function IMMEDIATELY SEND WEIGHING RESUL T IN BASIC
MEASURING UNIT
Command SI CR LF (immediately send of balance indication)

• Function SEND WEIGHING RESULT IN BASIC MEASURING UNIT
Command S CR LF (send result when stable)

• Function SEND WEIGHING RESULT IN CURRENT MEASU RING UNIT
Command SU CR LF (send result with current unit when stable)

• Function IMMEDIATELY SEND WEIGHING RESUL T IN CURRENT
MEASURING UNIT

Command SUI CR LF (send result in current unit now – do not wait for stable

reading)

• Function CONTINUOUS TRANSMISSION IN BASIC MEASURING UNIT
Command C1 CR LF (start continuous transmission in basic unit)

• Function END OF CONTINUOUS TRANSMISSION IN BASIC
MEASURING UNIT
Command C0 CR LF (finish continuous transmission in basic unit)

• Function CONTINUOUS TRANSMISSION IN CURRENT MEASURING
UNIT
Command CU1 CR LF (start continuous transmission in current unit)

• Function END OF CONTINUOUS TRANSMISSION I N BASIC
MEASURING UNIT
Command U0 CR LF (finish continuous transmission in current unit)

CAUTION

If a non-existing or incorrect command finished with CR LF will be sent
to a balance, it responses with ES CR LF. Space between characters

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should be omitted, as they are added only for the purpose of proper
legibility.

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19. ERROR MESSAGES

Er1 Hi - mass out of range on balance start and adjustment

Er2 nuLL - value from AD converter ≤ 0 (A/D ≤ 0)

Er3 FuL1 - values from A/D converter ≥ maximal converter range (A/D ≥ 0)

Er4 FuL2 – maximal capacity of the balance exceeded (over load)

Er5 rout – mass value out of range (during adjustment, determining reference for

sample quantity and percent setup, etc.),

Er7 tout - timeout error for zeroing and tarring

Er8 outr - enter value (from keyboard level) out of range (setting thresholds / limits

values)

Er9 Lock – function blocked (e.g. by LFT),

Er10 cal – adjustment error (change of mass or incorrect mass of adjustment

weight / mass standard).

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20. ADDITIONAL EQUIPMENT

20.1 Anti-Vibration table

It is a very stable basis which eliminates all kinds of vibrations and
ground shakes. The inner part of the table holds a marble plate,
which is a foundation for balance positioning.

20.2. Rack for under hook weighing

The rack is used if under hook weighing option has to be applied.
Under hook weighing is necessary if magnetic loads are weighed
or during density determination of substances. Racks are also
used for measuring absorptiveness of substances e.g. foamed
polystyrene. The rack is made of mild steel. Rack height is
330mm.

20.3. Density determination kit (for solids and liquids)

It is applicable with balance with resolution at least 1 mg.
Designed for density determination of solids and liquids. The
procedure is fully automatic, i.e. the user only places samples
on kit’s weighing pans.

20.4. Additional display

Features: Length of conductor between additional display and
balance – 1,5m, plastic casing, possibility of tilting the additional
display head.

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20.5. Computer software

PW-WIN 2004 – gathering data. Data is gathered in tabiular or

chart format. It is possible to calculate statistics from a series of
weighing records.

RAD-KEY 2000 – implemets a set of commands for controlling a
balance, e.g. tarring, start of continuous transmission, cyclic
commands set to a balance.

REC-FS 2000 – application for control of formulas. It enables
creation of a formula, declare tolerance limits for each ingredient
and measure mass of each ingredient of a formula.

Number of instruction:
LMI-34-03/06/12/ENG

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MANUFACTURER

OF ELECTRONIC WEIGHING INSTRUMENTS

RADWAG WAGI ELEKTRONICZNE

26-600 Radom

28 Bracka

POLAND

phone [phone]

fax. + 48 48 385 00 10

e-mail: [e-mail]

www.radwag.com

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