MRC BWLC-C2-K, BWLC-C1-K, BWLC-C1-R, BWLC-B1, BWLC-C2-R Instruction Manual
...
PLEASE READ THIS MANUAL CAREFULLY BEFORE OPERATION
3, Hagavish st. Israel 58817 Tel: 972 3 5595252, Fax: 972 3 5594529 m
rc@mrclab.com
MRC.VER.02-11.10
INSTRUCTION MANUAL FOR
BWLC-series
PrecisionBalances
www.mrclab.com
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MARCH 2010
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TABLE OF CONTENTS
1. INTENDET USE ...................................................................................................................... 6
2. PRECAUTIONS ....................................................................................................................... 7
2.1. Maintenance .................................................................................................................... 7
2.2. Accumulator / battery pack ............................................................................................. 7
2.2.1. Power supply of scales BWLC C1…C2 8 ..............................................................
2.2.2. Replacement of worn batteries ............................................................................. 8
2.3. Operation in a strong electrostatic field .......................................................................... 9
3. WARRANTY CONDITIONS .................................................................................................... 9
4. MAIN DIMENSIONS .............................................................................................................. 10
5. UNPACKING AND ASSEMBLY ........................................................................................... 12
6. GETTING STARTED ............................................................................................................. 13
7. BALANCE LEVELLING ........................................................................................................ 14
8. KEYPAD ............................................................................................................................... 14
9. KEYS’ FUNCTIONS .............................................................................................................. 15
10. INSCRIPTIONS ON THE DISPLAY ................................................................................... 16
11. USER MENU ....................................................................................................................... 17
11.1. Submenus .................................................................................................................. 17
11.2. Browsing user menu .................................................................................................. 18
11.2.1. Keypad .............................................................................................................. 18
11.2.2. Return to the weighing mode ............................................................................ 18
12. WEIGHING .......................................................................................................................... 19
12.1. Tarring ........................................................................................................................ 20
12.2. Inscribing tare value ................................................................................................... 20
12.3. Zeroing ...................................................................................................................... 21
12.4. Weighings in two ranges ............................................................................................ 21
12.5. Selection of basic weight unit .................................................................................... 23
12.6. Temporarily selected unit ........................................................................................... 24
13. MAIN PARAMETERS .......................................................................................................... 25
13.1. Setting a filtering level ................................................................................................ 25
13.2. Median filter ................................................................................................................ 26
13.3. Autozero function ....................................................................................................... 27
13.4. Tare function .............................................................................................................. 28
14. RS 232 PARAMETERS ....................................................................................................... 29
14.1. Printout type ............................................................................................................... 29
14.2. Minimal mass threshold ............................................................................................. 30
14.3. Baud rate .................................................................................................................... 31
14.4. Serial transmission parameters ................................................................................. 32
15. OTHER PARAMETERS ...................................................................................................... 33
15.1. Backlight function ....................................................................................................... 33
15.1.1. Backlight for supplying from mains .................................................................. 33
15.1.2. Backlight for supplying from batteries .............................................................. 34
15.2. “Beep” signal – after pressing a key .......................................................................... 35
15.3. Automatic switch-off ................................................................................................... 35
15.4. Battery voltage level check ........................................................................................ 36
15.4.1. Checking the batteries ...................................................................................... 36
15.4.2. Battery discharge pictogram ............................................................................. 37
15.4.3. Accumulator charging option ............................................................................ 37
15.4.4. Formatting rechargeable battery packs ............................................................ 38
16. OPERATION MODES ......................................................................................................... 39
16.1. Setting accessibility of operation modes ................................................................... 39
16.2. Selecting quantity of operation modes ...................................................................... 40
16.3. Counting pieces of the same mass ............................................................................ 41
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16.4. +/- control referring to the inscribed standard mass ................................................... 43
16.5. Control of % deviation referring to the inscribed standard mass ............................... 45
16.5.1. Standard mass determined by its weighing ..................................................... 45
16.5.2. Mass of standard inscribed to scale memory ................................................... 47
16.6. Automatic tare ............................................................................................................. 48
16.7. Measurement of maximal force on the pan – latch ................................................... 49
16.8. Totalizing .................................................................................................................... 49
16.8.1. Enabling the work mode ................................................................................... 50
16.8.2. Totalizing procedure ......................................................................................... 50
16.8.3. Memory of the last value of sum of weighed goods ......................................... 51
16.8.4. Return to weighing ............................................................................................ 52
16.9. Weighing animals ....................................................................................................... 53
16.10. Tare memory ............................................................................................................ 54
16.10.1. Entering the tare value to the scale memory ................................................. 54
16.10.2. Selecting a tare value from the memory ........................................................ 56
17. SCALE CALIBRATION ....................................................................................................... 57
17.1. Internal calibration ...................................................................................................... 57
17.1.1. Manual internal calibration ................................................................................ 58
17.1.2. Automatic internal calibration ........................................................................... 59
17.1.3. A report from calibration ................................................................................... 62
17.2. External calibration ..................................................................................................... 63
17.3. Start mass adjustment ............................................................................................... 64
18. COOPERATION WITH PRINTER ....................................................................................... 66
19. COOPERATION WITH COMPUTER .................................................................................. 67
20. COMMUNICATION PROTOCOL ........................................................................................ 68
20.1. General information .................................................................................................... 68
20.2. A set of commands for RS interfaces ......................................................................... 68
20.3. Respond message format ........................................................................................... 69
20.4. Command’s description .............................................................................................. 69
20.4.1. Zeroing .............................................................................................................. 69
20.4.2. Tarring ............................................................................................................... 69
20.4.3. Get tare value ................................................................................................... 70
20.4.4. Send the stable result in basic unit .................................................................. 70
20.4.5. Send the result immediately in basic unit ......................................................... 71
20.4.6. Send the stable result in current unit ................................................................ 71
20.4.7. Send the result immediately in current unit ...................................................... 72
20.4.8. Switch on continuous transmission in basic unit .............................................. 73
20.4.9. Switch off continuous transmission in basic unit .............................................. 73
20.4.10. Switch on continuous transmission in current unit ........................................ 73
20.4.11. Switch off continuous transmission in current unit ........................................ 74
20.4.12. Send all implemented commands ................................................................. 74
20.5. Manual printouts / automatic printouts ........................................................................ 74
20.6. Continuous transmission ............................................................................................. 75
20.7. Configuring printouts ................................................................................................... 76
21. ERROR COMMANDS ......................................................................................................... 76
22. TROUBLE SHOOTING ....................................................................................................... 77
23. TECHNICAL PARAMETERS .............................................................................................. 78
23.1. Precisions scales of BWLC series .............................................................................78
23.2. Verified precise scales of BWLC series .....................................................................79
23.3. Precise scales of BWLC…C2 series 80 ....................................................................
23.4. Verified precise scales of BWLC…C2 series ..........................................................80
24. ADDITIONAL EQUIPMENT ............................................................................................... 81
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1. INTENDET USE
Scales are designed for fast and precise measurements of weighed loads
masses and direct commercial settlements. Tarring in full weighing range
enables to determine net mass of weighed loads. Additional display is
additional equipment of scale.
Functions:
• backlight of display
• level of filtration
• autozero function
• setting baud rate of transmission
• continuous data transmission for RS 232
• automatic operation for RS 232
• designed printouts
• designation minimum mass for function operating
• counting pieces
• +/- mass control
• percentage deviation from standard mass
• latch of maximum scale indication
• automatic tare
• memory of tare
• inscribing tare value
• Memory of 9 tare values
• automatic scale switch-off
• user calibration
• internal calibration
• Totalizing
• Weighing animals
User functions may have attribute of accessibility. For this reason it is
possible to adjust scale to individual needs to provide access to only
these functions which are currently needed. Attribute determination
accessible / inaccessible is possible in user menu and described in
further part of manual.
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2. PRECAUTIONS
2.1. Maintenance
A. Please, read carefully this user manual before and use the device
according to its intended use.
B. Devices that are to be withdrawn from use age should be sent back
to the producer or in case of own utilization do it according to the law.
2.2. Accumulator / battery pack
The device connected to mains inteligently monitors the battery state and
charges it if possible. After sudden lack of power supply from the mains
the device automatically switches to accumulator without breaking
operation.
• BWLC-C1…C2 and BWLC-B1 scales are devices designed to be
supplied from NiMH batteries (nickel-metal-hydrogen) with rated
voltage of 1.2V, size R6 and capacities from 1800 to 2800mAh
charged while connected to mains without stopping operation.
• BWLC-A2 and BWLC-C2 scales are devices designed to be supplied
from SLA accumulators (Sealed lead acid type) 6V o and capacity 3
to 4Ah charged while connected to mains without stopping operation.
In case of an elongated storage period in low
temperatures, it is not allowed the full discharge
of the accompanied batteries.
The equipment including accumulators does not belong
to your regular household waste. The European legislation
requires that electric and electronic equipment be collected
and disposed separately from other communal waste with
the aim of being recycled.
Notice:
Some symbols on accumulators identify harmful elements/compounds:
Pb = lead,
Cd = cadmium,
Hg = mercury.
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2.2.1. Power supply of scales BWLC-C1…C2
BWLC-C1…C2 scales are intended to be supplied from a power adapter
or from NiMH rechargeable battery pack (standard equipment). New
rechargeable batteries should be formatted according to the description
in the chapter 15.4.4. of this manual.
Alternatively, you can use to power the device R6 size standard nonrechargible batteries. If you want to use normal batteries instead of
rechargeable ones, proceed as follows:
• Before installing non-rechargeable batteries turn on the device
and set <5.5.CHr6> to <no>, to switch off charging.
• Then install the batteries.
Installing batteries without changing <5.5.CHr6> to <no>
may cause damage of batteries and the indicator.
2.2.2. Replacement of worn batteries
Users of scales BWLC-C1…C2 can exchange worn out accumulators
to new ones.
Procedure:
• Open the lid of the chamber for batteries
placed in the bottom of the indicator
casing:
• Remove discharged and then insert
new batteries into the chamber,
according to given polarity (+/-):
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• Close the lid of the chamber for batteries:
In BWLC-A2, BWLC-C2 and BWLC-B1 scales the worn out
accumulator can be exchanged to a new one by the
authorized service of the manufacturer.
2.3. Operation in a strong electrostatic field
If the device is about to operate in a strong electrostatic field
(e.g. printing houses etc.) it should be connected to the earthing.
Connect it to the clamp terminal signed .
3. WARRANTY CONDITIONS
A. MRC is obliged to repair or change those elements that
appears to be faulty because of production and construction reason,
B. Defining defects of unclear origin and outlining methods of
elimination can be settled only in participation of a user and the
manufacturer representatives,
C. MRC does not take any responsibility connected with
destructions or losses derives from non-authorized or inappropriate
(not adequate to manuals) production or service procedures,
D. Warranty does not cover:
• Mechanical failures caused by inappropriate maintenance of
the device or failures of thermal or chemical origin or caused
by atmospheric discharge, over voltage in mains or other
random event,
• Inappropriate cleaning.
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E. Loss of warranty appears after:
• Access by an unauthorized service,
• Intrusion into mechanical or electronic construction of,
unauthorized people,
• Removing or destroying protection stickers.
F. Warranty conditions outline the warranty period for rechargeable
batteries attached to the device for 12 months.
G. The detailed warranty conditions one can find in warranty certificate.
H. Contact with the central authorized service:
+972-3-5595252.
4. MAIN DIMENSIONS
Scales BWLC-A1-C2
Scales BWLC-A2, WLC-A2-C2
Scales BWLC-B1
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Scales BWLC-C1-R
Scales BWLC-C2-R
Scales BWLC-C1-K
Scales BWLC-C2-K
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5. UNPACKING AND ASSEMBLY
• Unpack and put the scale on a flat even stable surface far away
from sources of heat,
• Remove the transport protection:
− Scales BWLC…C2:
− Scales BWLC-B1:
− Scales BWLC-C-K, BWLC-C-R:
• Install the weight pan according to the drawings below:
− Scales BWLC-A1-C2:
− scales BWLC-A2, BWLC-A2-C2:
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− scales BWLC-B1:
− scales BWLC-C-K:
− scales BWLC-C-R:
6. GETTING STARTED
• After unpacking and mounting the scale level it
out. Use levelling legs and the level condition
indicator installed in the basis of the scale.
• Turn the device on using the key – keep pressing the key
for about 0.5 sec,
• Wait for the test completion,
• Then you will see zero indication and pictograms:
- zero indication
- stable result
kg - weight unit
• If the indication is not zero press key.
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Caution:
In case of verified scales in II OIML class with divisions e=10d
(where: d – reading division, e – verified division) the last digit
will be marked as shown below:
7. BALANCE LEVELLING
• Operation temperature range for this device is outlined as
+15°C ÷ +30°C;
• After powering up this device requires 30 minute worming up;
• During the worm-up time the indication can change;
• User calibration should be performed after the warm-up time.
• Temperature and humidity changes during operation can increase
measurement errors, which can be minimized by performing the
user calibration process.
8. KEYPAD
Keypad of BWLC-A2 series Keypad of BWLC…C2 series
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Keypad of BWLC-C1…C2 series Keypad of BWLC-B1 series
Notice:
Scales of BWLC-A2 series are equipped with an additional key for
tarring and has no additional functions but the keypad of the BWLC…C2
scale include an additional key for direct starting the process of
internal calibration. Because the functionality and operation of the
rest of the keys is the same, the further part of this manual
describes the keypad of BWLC-C1…C2 series.
9. KEYS’ FUNCTIONS
Switching on/off
Function key (operation mode selection)
Sending a weighing result to RS232
Zeroing
Tarring
Manual internal calibration (BWLC…C2 scales)
Notice:
After pressing + keys’ functions changes. The way of operation
in this mode is described in details further in this manual.
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10. INSCRIPTIONS ON THE DISPLAY
No Text string Description
1 FIL Filter level
2 bAud Transmission baud rate
3 PCS Piece counting
4 HiLo +/- control according to a standard mass
5 rEPL Automatic printout
6 StAb The condition of printing data
7 Auto Autozero correction
8 t1 Power save – time to switch off while no operation
9 toP Latch of the max measurement
10 Add Totalizing
11 AnLS Weighing animals
12 tArE Memory of 9 tare values
13 Indication in autozero zone (indication = exact zero)
14 Stable result (ready to read)
15 PCS Operation mode - counting pieces
16 kg (g) Operation mode - weighing
17 Rechargeable battery pack or battery discharged (BAT-LO)
18 Net Tare function has been used
19 Min
+/- control with reference to the standard mass: setting
the lower threshold or mass below the first threshold
20 OK
+/- control with reference to the standard mass:
load mass between the thresholds
21 Max
+/- control with reference to the standard mass: setting
the upper threshold or mass over the second threshold
22 CALIb The stability test for the internal calibration procedure
23 CAL-H Manual internal calibration
24 CAL-A Automatic internal calibration after powering up
25 CAL-t Internal calibration triggered of by temperature
26 CAL-C Internal calibration triggered of by timer
27 Abort Terminating of internal calibration
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11. USER MENU
11.1. Submenus
User’s menu is divided into 6 basic submenus. Each group has its
own characteristic name preceded by the letter P and a number.
P1 rEAd
P 1.1 Fil |
3
P 1.2 Auto | YES
P 1.3 tArA | no
P 1.4 Fnnd | YES
P2 Prnt
P2.1 Pr_n | StAb
P2.2 S_Lo |
P2.3 bAud | 9600
P2.4 S_rS | 8d1SnP
P3 Unit
P3.1 StUn | kg
P4 Func
P4.1 FFun | ALL
P4.2 Funi | no
P4.3 PcS |
no
P4.4 HiLo |
no
P4.5 PrcA |
no
P4.6 Prcb |
no
P4.7 AtAr |
no
P4.8 toP |
no
P4.9 Add |
no
P4.A AnLS |
no
P4.b tArE |
no
P5 othr
P5.1 bL
|
Auto
P5.2 bLbt
|
70
P5.3 bEEP
|
YES
P5.4 t1
|
Auto
P5.5 CHr6
|
YES
P6 CAL
P6.1 St_u | * FUNCTION *
P6.2 uCAL | * FUNCTION *
P6.3 CA-C | 0
P6.4 CA-r | YES
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11.2. Browsing user menu
Use scale’s keys to move inside the menu.
11.2.1. Keypad
+
Entering main menu
+
Inscribing tare value
Increasing a digit value by „1”
moving down in the menu
+
Battery / accumulator state monitoring
+
Toggling between gross / net values
Selecting the parameter or changing the value
of a selected parameter
Entering the selected submenu
or activating a parameter for changes
Confirmation (enter)
Leaving without changes or reaching a higher level
of the menu
11.2.2. Return to the weighing mode
The changes that have been introduced should be saved
in order to keep them in the memory for good.
While leaving parameters press key until the text <SAuE?
> appears on the display. Then press:
– to save changes or – to leave without changes.
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12. WEIGHING
Put a load you want to weigh on the weighing pan. When the
pictogram appears it means that the result is stable and ready to read.
In order to assure long-term operation and appropriate measurements of
weighted loads following precautions should be taken into consideration:
• Loads should be placed on the pan delicately and carefully
in order to avoid mechanical shocks:
• Loads should be placed centrally on the pan (errors caused
by eccentric weighing are outlined by standard PN-EN 45501
ch. 3.5 and 3.6.2):
• Do not load the pan with concentrated force:
• Avoid side loads, particularly side shocks should be avoided
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12.1. Tarring
In order to determine the net mass put the packaging on the pan.
After stabilising press - (Net pictogram will be displayed in the
left upper corner and zero will be indicated).
After placing a load on the weight pan net mass will be shown.
Tarring is possible within the whole range of the scale. After unloading
the pan the display shows the tarred value with minus sign.
Notice:
Tarring cannot be performer when a negative or zero value is being
displayed. In such case Err3 appears on the display and short audible
signal will be emitted.
12.2. Inscribing tare value
You can also inscribe a tare value. While in weighings mode press:
• Press simultaneously and ,
• You will see :
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• Using and set the tare value,
•Press ,
•Program returns to weighings mode. The inscribed tare value
can be seen on the display with „–” sign,
• Tare can be inscribed anytime in weighings mode.
Notice:
1. You cannot inscribe a new tare value when the tare value in
memory
is greater than zero. In the case of trying this the <Err3> message
will be displayed and short audible signal will be emitted.
2. Users can also enter up to 9 tare values to the scale
memory
(see 16.10 of his manual).
12.3. Zeroing
To ZERO the scale press: .
The scale will display zero and following pictograms: and .
Zeroing is only possible within the scope of ±2% of full scale. While
zeroing outside the scope of ±2% you will see <Err2>. Zeroing
is possible only in stable state.
Notice:
Zeroing is possible only within the ±2% interval of the maximal range.
If zeroing is performed beyond this range the <Err2> message and
short audible signal will be emitted.
12.4. Weighings in two ranges
Switching between the I range and the II range happens automatically
(exceeding Max of the I range). Weighings in the second range is
signalled by a pictogram in the top left corner of the display.
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Then weighings is done with the accuracy of the II range to the moment
of returning to zero (autozero range ) where the scale switches back
to the I range.
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12.5. Selection of basic weight unit
This function is used to set weight unit the scale will start with.
Procedure:
• Enter the submenu <P3.Unit> and then:
• press , until the expected unit appears on the display:
Options:
A. When the basic unit is [kg], users can toggle between:
[kg, lb, N], for verified scales [lb] is not accessible,
B. If the basic unit is [g], users can toggle between:
[g, ct, lb], for verified scales [lb] is not accessible,
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• After you select the unit press , the scale returns to:
• Return to weighing according to chapter - 11.2.2.
Notice:
After turning on the scale always sets the basic unit.
12.6. Temporarily selected unit
This function is used to set weight unit the scale will use temporarily
until the next power off or next selection.
Procedure:
• Press and then:
• After you select the unit you want come back to weighing
procedure.
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Options:
A. When [kg] is a basic unit, users can select following units:
[kg, lb, N], [lb] is not accessible for verified scales.
B. When [g] is a basic unit, users can select following units:
[g, ct, lb], [lb] is not accessible for verified scales.
13. MAIN PARAMETERS
Users can adjust the scale to external ambient conditions (filtering level)
or particular needs (autozero operation, tare memory). This parameters
are placed in <P1.rEAd> submenu.
13.1. Setting a filtering level
Procedure:
• Enter the submenu <P1.rEAd> and then:
1 - 4 - level of filtering
• By pressing select the filtering level you need
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