Page 1
Installation and
Installation andInstallation and
Installation and
Maintenance Instructions
Maintenance InstructionsMaintenance Instructions
Maintenance Instructions
METTLER TOLEDO
METTLER TOLEDOMETTLER TOLEDO
METTLER TOLEDO
BBA242xx Paint Mixing Scales with AULT AC Adapter
BBA242xx Paint Mixing Scales with AULT AC AdapterBBA242xx Paint Mixing Scales with AULT AC Adapter
BBA242xx Paint Mixing Scales with AULT AC Adapter
Page 2
Contents
1111 Documentation for the BBA242xx Paint Mixing Scale with AULT AC Adapt
Documentation for the BBA242xx Paint Mixing Scale with AULT AC AdaptDocumentation for the BBA242xx Paint Mixing Scale with AULT AC Adapt
Documentation for the BBA242xx Paint Mixing Scale with AULT AC Adapter
erer
er ..............3
2222 Application range
Application rangeApplication range
Application range ...............................................................................................3
3333 Cautionary notes regarding installation
Cautionary notes regarding installationCautionary notes regarding installation
Cautionary notes regarding installation .................................................................3
4444 Installation on the scale
Installation on the scaleInstallation on the scale
Installation on the scale ......................................................................................4
4.1
4.14.1
4.1 Attaching power cable to the scale
Attaching power cable to the scaleAttaching power cable to the scale
Attaching power cable to the scale ..............................................................4
4.2
4.24.2
4.2 Ensuring admissibility of the peripheral unit
Ensuring admissibility of the peripheral unitEnsuring admissibility of the peripheral unit
Ensuring admissibility of the peripheral unit .................................................4
4.3
4.34.3
4.3 Attaching peripheral unit
Attaching peripheral unitAttaching peripheral unit
Attaching peripheral unit ............................................................................4
5555 Installation of the AULT AC Adapter
Installation of the AULT AC AdapterInstallation of the AULT AC Adapter
Installation of the AULT AC Adapter .......................................................................6
5.1
5.15.1
5.1 Installation in the safe area
Installation in the safe area Installation in the safe area
Installation in the safe area ......................................................................6
6666 Operation and maintenance
Operation and maintenanceOperation and maintenance
Operation and maintenance.................................................................................7
6.1
6.16.1
6.1 Safety measures during operation
Safety measures during operationSafety measures during operation
Safety measures during operation ...............................................................7
6.2
6.26.2
6.2 Control
ControlControl
Control .................................................................................................... 7
6.3
6.36.3
6.3 Cleaning
CleaningCleaning
Cleaning..................................................................................................7
7 Directives and test standards
Directives and test standardsDirectives and test standards
Directives and test standards ...............................................................................7
8888 Technical data
Technical dataTechnical data
Technical data ...................................................................................................8
Page 3
3
1 Documentation for the BBA242xx Paint Mixing Scale with AULT AC Adapter
The BBA242xx Paint Mixing Scale with the AULT AC Adapter is accompanied by the following
documentation:
1.1 Installation and maintenance instructions
1.2 Operating instructions
These installation and maintenance instructions apply to all scales with a type designation containing the
letters BBA242xx. The individual model designations may also include numbers detailing the weighing
range and additional letters which indicate special versions.
These instructions contain information for the installation and start-up of the scale and the AC adapter, as
well as all requirements necessary for safe operation of the system. You will find all information on the
weighing applications and the interface operation in the operating instructions.
2 Application range
The BBA242xx Paint Mixing Scales are approved for use in a hazardous area classified as zone 2, type
of protection nL, gas group IIC and temperature class T4.
The AULT AC adapter must be installed in the safe area.
The RS232 interface built in the scale is intrinsically safe. The only peripherals which may be attached
are those fitted with an interface having the same limiting values and approved as intrinsically safe, see
section “Technical data”.
3 Cautionary notes regarding installation
▲ Perform the installation only as
described in these instructions and in
the appropriate control drawing.
▲ It is essential to comply with national
regulations regarding grounding and
▲ Before connecting the AULT AC adapter to the mains make sure the cable from the AC adapter is
connected to the scale and the socket is secured with the locking device as described by EN
60079-15.
▲ No changes whatsoever may be made to the scale or the AULT AC adapter.
▲ Service work and repairs must be carried out only by personnel authorized by METTLER TOLEDO.
▲ Check that the scale and the AULT AC adapter are in perfect condition with regard to safety before
putting into operation for the first time and at least after every 3 years of service.
▲ The plastic surface must not be wiped clean or rubbed in hazardous area to prevent an
electrostatic hazard.
▲ The scale shall be installed in such a way that there is a low risk of mechanical impact danger
for the plastic part of enclosure and display window.
▲ Warning
Warning Warning
Warning ---- Do not separate the scale when energized.
Do not separate the scale when energized. Do not separate the scale when energized.
Do not separate the scale when energized.
Page 4
4
4 Installation on the scale
▲ In all installation work, refer to the following control drawing:
– Installation drawing 72227514A according to CENELEC standard IEC 60079-15.
4.1 Attaching power cable to the scale
4.2 Ensuring admissibility of the peripheral unit
If a peripheral unit needs to be connected, its RS232 interface must also be intrinsically safe and
approved to maintain the intrinsic safety.
Ensure that the electrical limiting values of the peripheral match the limiting values printed on the
scale next to the socket. If this is not the case, install an approved barrier, e.g. MTL 761P.
4.3 Attaching peripheral unit
Turn the scale on its side so that the connection
socket (1) on the bottom is accessible.
Route the blue cable from the Panda -EX1P
Power Supply Unit to the scale and plug
connector into the scale.
Turn the scale back to the proper position.
Connect the cable from the peripheral device to the
9-pin I/O socket (3) of the scale. Fix all connectors
by tightening screws.
Page 5
5
Page 6
6
5 Installation of the AULT AC Adapter
5.1 Installation in the safe area
230 V Euro
Safe area
Hazardous area
Install the power supply in the safe area near a
wall socket.
Route the power line cable and the cable to the
scale so that they are protected against
damage. Cables must not be kinked or bent at
sharp angles.
Plug the power plug into the wall socket of the
building electrical installation.
As neither the power supply unit nor the scale have
an on/off switch, the power plug serves as a power
disconnecting device.
The scale is ready for operation as soon as the
power plug is plugged in.
Warning:
Warning: Warning:
Warning: Before separating the power supply cable
Before separating the power supply cable Before separating the power supply cable
Before separating the power supply cable
from the scale make sure the
from the scale make sure the from the scale make sure the
from the scale make sure the AC adapter is
AC adapter is AC adapter is
AC adapter is
disconnected from the mains!
disconnected from the mains! disconnected from the mains!
disconnected from the mains!
Page 7
7
6 Operation and maintenance
6.1 Safety measures during operation
▲ AULT AC adapter and scale may be operated only when the housing is closed.
▲ WWWWarning:
arning: arning:
arning: Because of the danger of static
Because of the danger of static Because of the danger of static
Because of the danger of static dis
disdis
discharge, a
charge, a charge, a
charge, a protective cover may only be used if it is
protective cover may only be used if it is protective cover may only be used if it is
protective cover may only be used if it is
statically uncritical
statically uncriticalstatically uncritical
statically uncritical.
▲ Warning:
Warning: Warning:
Warning: Protect the scale terminal against bumps.
Protect the scale terminal against bumps. Protect the scale terminal against bumps.
Protect the scale terminal against bumps.
6.2 Control
▲ Inspect the cables, connectors and accessories at regular intervals. Ensure they are free from
cracks and other mechanical or chemical damage. If such damage is found, inform METTLER
TOLEDO service.
6.3 Cleaning
▲ When cleaning the scale, ensure that the terminal and particularly the membrane keypad are
not damaged.
▲ WWWWarning:
arning: arning:
arning: Avoid extensive dry rubbing on the scale parts since this may cause static
Avoid extensive dry rubbing on the scale parts since this may cause static Avoid extensive dry rubbing on the scale parts since this may cause static
Avoid extensive dry rubbing on the scale parts since this may cause static
dis
disdis
discharges.
charges. charges.
charges.
7 Directives and test standards
Since the AULT AC adapter is always used on scale BBA242xx, the list of directives and standards is
contained in the operating instructions of the scale.
Page 8
8
8 Technical data
AULT (HK-CP07-A12) AC Adapter
Mains input 230 V, 50 Hz, 100 mA; Umax= 250 V
Maximum safety output Uo: 12 VDC, Io: 600 mA
BBA242xx Mixing Scale
Classification ATEX II 3 G Ex nL IIB T4
Mains input Ui max: 12 VDC, Ii max: 600 mA
Ambient temperature 5 to 40 ºC
BBA242x
BBA242xBBA242x
BBA242xxxxx Intrinsically safe data interface
Intrinsically safe data interface Intrinsically safe data interface
Intrinsically safe data interface
Connection socket
Connection socket Connection socket
Connection socket 9-pin socket D-subminiature, female
Pin assignment
Pin assignment Pin assignment
Pin assignment Pin
Pin Pin
Pin Assignment
AssignmentAssignment
Assignment
Pin 2 TXD (inverted)
Pin 3 RXD (inverted)
Pin 5 GND (0V, connected to housing ground)
Pins 1, 4, 6, 7, 8, 9 not connected
Nominal rating
Nominal rating Nominal rating
Nominal rating Min. ±5 V at 3 kΩ
Max. ±7 V at 300Ω source resistance
Values for intrinsic safety
Values for intrinsic safety Values for intrinsic safety
Values for intrinsic safety U0 = 11.6 V; I0 =56.8 mA; Po=165mW;
Co=2.11uF; Lo=15mH
Ui = ±11 V; Ii = 28 Ma; Pi=148mW;
Ci = 1.3nF; Li = 0
Enclosure Protection IP4X , warning : indoor use.
warning : indoor use. warning : indoor use.
warning : indoor use. DDDDon
onon
on’’’’t exposed to
t exposed to t exposed to
t exposed to rain
rainrain
rain....
Recommended barriers from MTL Instruments Ltd
Recommended barriers from MTL Instruments LtdRecommended barriers from MTL Instruments Ltd
Recommended barriers from MTL Instruments Ltd
Type 761P Channel 1/2: UO = ±9 V, IO= 25 mA,
Working voltage = ± 7.2 V
The TXD output of an external RS232 port must be limited by a source resistance of approx. 300Ω.
Page 9
9
Installation Drawing 72227514A
METTLER TOLEDO Doc. No. 72227514A issue date: May. 27, 2009
Page 10
To protect your METTLER TOLEDO product’s future: METTLER TOLEDO service assures the
quality, measuring accuracy and preservation of value of all METTLER TOLEDO products for
years to come. Please send for full details about our attractive terms of service. Thank you.
72227373
Subject to technical changes and to the availability of the accessories supplied with the instruments
© Mettler
© Mettler© Mettler
© Mettler----Toledo (Changzhou)
Toledo (Changzhou) Toledo (Changzhou)
Toledo (Changzhou)
72227373
7222737372227373
72227373 Printed in China
Printed in China Printed in China
Printed in China
www
wwwwww
www.mt.com
.mt.com .mt.com
.mt.com
Loading...