Mettler Toledo PG503 Delta Range, PG2002, PG502, PG802, PG203 Operating Instructions Manual
...
Operating instructions
METTLER TOLEDO
PG/SG Balances
MET
Overview
of
your PG/SG balance
Front vlewPG
Front view SG
Rear view PG
Rear view SG
j
Display PG/SG
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Display, controls and connections
of
your PG/SG balance
Front
Designation
No.
Display
Draft shield (PG 1 mg models only)
Draft shield cover
Weighing pan
Leveling foot
Level check
Control keys
Rear
Designation
No.
Power cable or connection for AC adapter
Fuses (not with PG803)
LocalCAN interface connection
Fastening for metal rod antitheft device
Fastening for steel wire antitheft device
Fastening for auxiliary displays
Display
Designation
No.
Weighing units
Alphanumeric display (result menu, etc.)
Symbol of the stability detector
Symbol for calculated result
Status indicator of the vibration adapter
No.
Designation
Status indicator of the weighing process adapter
Status indicator of the repeatability
Function displays for special applications
Display of adjustment mode
Contents
Contents
1.
Getting to know your PG/SG balance 4
1.1 Introduction 4
1.2 Overview ot the PG/SG balances 4
1.3 What you should know about these instructions 5
1.4 Safety has priority 6
2.
Putting the balance into operation 7
2.1 Unpacking and checking the standard equipment 7
2.2 Selecting or changing the location 9
2.3 Leveling the balance 10
2.4 Power supply 11
2.5 Adjusting (calibrating) the balance 12
3. Weighing made simple 14
3.1 Switching the balance on and off 14
3.2 Taring the balance 15
3.3 Performing a simple weighing 16
3.4 Faster weighing with lower readability 16
3.5 Switching weighing units 17
3.6 DeltaRange balances with movable fine range 18
3.7 Printing out the weighing result and transferring data 18
4. The menu 19
4.1 What is the menu? 19
4.2 Menu operation 20
4.3 Preselecting a function 22
4.4 Selecting weighing unit 1 23
4.5 Selecting weighing unit 2 24
4.6 Setting the vibration adapter 25
4.7 Setting the weighing process adapter 25
4.8 Selecting repeatability 26
4.9 Preselecting automatic shutdown 27
Contents
4.10 Selection of the adjustment (calibration) and test function 27
4.11 Switching automatic adjustment call-up on or off 28
4.12 Selecting the power-up mode 29
4.13 Switching automatic zero correction (Autozero) on or off 29
4.14 Printing out settings or resetting to factory settings 30
5. Special applications and functions 31
5.1 Piece counting 31
5.2 Percent weighing 33
5.3 Formula weighing 34
5.4 Dynamic weighing of unstable weighing samples 38
5.5 Below-the-balance weighings 40
5.6 Adjustment (calibration) with external weights (VariCal) 41
5.7 Test of the balance with internal or external weight 43
6 Error messages 46
6.1 Preventive maintenance and care 48
6.2 Changing the fuses 49
6.3 Changing the protective cover 49
6.4 LocalCAN universal interface 50
7. Technical data and optional equipment 51
7.1 General technical data of the PG/SG balances 51
7.2 Dimensions 54
7.3 Optional equipment 57
8. Appendix 59
8.1 Overview of menu 59
8.2 Conversion table for weight units 60
8.3 SOP (Standard Operating Procedure) 61
8.4 Index 63
Getting to know your PG/SG balance
1.
Getting
The section provides you with detailed information on your PG/SG balance. Please read this section through carefully even
if you already have experience with METTLER TOLEDO balances and scales and be sure to familiarize yourself with the
safety notes!
to
know your PG/SG balance
1.1 Introduction
Thank you for deciding to purchase a balance from METTLER TOLEDO.
The precision balances of the PG/SG line combine a wide range of weighing functions and setting possibilities with
exceptional ease of operation.
Please read through these operating instructions thoroughly so that you can exploit all the possibilities offered by your
balance to the
instructions supplied as standard useful in your daily work.
full.
As soon as you are familiar with the functions of your balance, you will find the short-form operating
These operating instructions apply to all balances of the PG/SG line. However, the various models have different equipment
and performance features. Where this is important for the operation, special mention is made in the text.
1.2 Overview
The PG/SG balance family comprises various precision balances which differ according to their weighing range, resolution
and equipment features.
The models of the PG/SG line have the following features:
- Extremely rugged and chemically resistant construction.
- Convenient keypad for one-hand operation and large size, easily readable display.
- Internal, motorized adjustment (calibration) or test with built-in weight or external weights.
- Built-in functions for piece counting, percent weighing, formula weighing and dynamic weight determination.
- Built-in interface of the latest generation (LocalCAN universal interface) allows the attachment of up to 5 peripheral
devices. Devices with an RS232 interface can also be attached via an adapter cable.
A brief word regarding standards, directives and procedures for quality assurance: Your PG/SG balance conforms with all
common standards and directives. It supports standard procedures, handicaps, work techniques and records as required
by GLP (Good Laboratory Practice) and SOP (Standard Operating Procedure). Recording of the sequences of operations
and adjustment work is highly important in this connection; we recommend use of the METTLER TOLEDO LC-P45 Printer
here.
Your PG/SG balance has a CE declaration of conformity and METTLER TOLEDO as the manufacturer has been awarded
ISO 9001/EN 29001 certification.
Certified versions of PG/SG balances are also available, please ask your METTLER TOLEDO dealer.
of
the PG/SG balances
Getting to know your PG/SG balance
1.3 What you should know about these instructions
These instructions contain orientation aids which facilitate your search for the desired information.
Work steps are marked by *•", whereas enumerations are preceded by a "
Key designations are enclosed in double angle brackets (e.g. «On/Off» or
n n i ~>
u.u >C
1/10 d
Cal
The keys of your PG/SG balance have two assignments: The first function of a key
(e.g.
"1/1 Od") is always available by pressing the key briefly, whereas the second
function (e.g. "Cal.") is called up by pressing and holding the key.
This symbol indicates a brief keystroke.
rik\ This symbol indicates a
long
This representation symbolizes the current display of your balance.
These symbols indicate safety and hazard instructions which must be complied
with.
Noncompliance with such instructions can lead to personal injuries to the user,
damage to the balance or other tangible assets or to malfunctions.
long,
sustained keystroke (approx. 2 seconds).
This symbol indicates additional information and instructions which facilitate your
handling of the balance and contribute to proper and economical use.
Getting to know your PG/SG balance
6
1.4 Safety has priority
Please note the following instructions for safe and problem-free operation of your PG/SG balance.
Read through these operating instructions carefully, even if you already have experience with METTLER
TOLEDO balances and scales.
It is essential to note the instructions in section 2 when putting your new balance into operation.
The PG/SG balances may not be operated in a hazardous environment.
Ensure that the printed voltage value matches the local line voltage.
The PG803 has an external AC adapter. Use only the AC adapter supplied with your PG803.
Operate and use your PG/SG balance only according to the directions in these operating instructions
or the short-form operating instructions.
Use only optional equipment and peripherals supplied by METTLER TOLEDO with your PG/SG balance;
these have been optimally matched to your balance.
Your PG/SG balance has a very rugged construction, but it is still a precision instrument. Treat it with
the appropriate care and it will thank you with years of trouble-free operation.
Never open the balance, it contains no parts which can be maintained, repaired or replaced by the user.
Should you have problems with your balance on the odd occasion, please contact your responsible
METTLER TOLEDO dealer.
Putting the balance into operation
2.
Putting the balance into operation
In this section you will learn how you unpack and set up your new balance and prepare it tor operation. On completion
of the steps described in this section, your balance is ready for operation.
2.1 Unpacking and checking the standard equipment
PG/SG balances are supplied in an environmentally harmless package.
Please check the standard equipment of your balance for completeness:
PG balances with readability 1 mg
- Operating instructions
- Short-form operating instructions
- Weighing pan support (1)
- Weighing pan (2)
- Draft shield (3)
- PG803 only: AC adapter
- Protective cover
PG balances with readability 10 mg
- Operating instructions
- Short-form operating instructions
- Weighing pan support (1)
- Weighing pan (2)
- Draft shield element (3)
- Protective cover
Putting the balance into operation
8
PG balances with readability 0.1 g and 1 g
- Operating instructions
- Short-form operating instructions
- Weighing pan support (1)
- Weighing pan (2)
- Protective cover
SG balances
- Operating instructions
- Short-form operating instructions
- Weighing pan
- Terminal with holder
- Terminal connection cable
- Protective cover over terminal
Putting the balance into operation
2.2 Selecting
Your balance is a precision instrument and will thank you for an optimum location with high accuracy and dependability.
or
changing
Firm,
vibration-free position as horizontal as possible.
No direct sunlight.
No excessive temperature fluctuations.
the
location
No excessive drafts (powerful air conditioning systems can also cause drafts).
You will find further tips for an optimum location in section 6.1.
Putting the balance into operation
10
2.3 Leveling
Procedure with PG balances
To level the PG balances, you need only align the two front leveling feet.
The imprint on the level makes leveling particularly simple.
the
balance
o
Turn the two front leveling feet as shown by the imprint or in the diagram until
the air bubble is in the middle of the level.
If the air bubble lies, e.g. at the bottom right, R on the imprint signifies that you
must turn the Right front leveling screw in the direction of the arrow (counterclockwise).
Several leveling steps are usually needed.
After every location change, the balance must be releveled.
If need be, e.g. if you work with high loads, you can unscrew the two rear
leveling feet of the PG balances until they contact the bench top.
n
Procedure with SG balances
• Screw one of the four leveling feet in completely.
Level balance using the three remaining leveling feet, which should all be at
the same level.
Unscrew the leveling foot you first screwed in until it touches the support.
O
n
• The balance must be releveled each time its location is changed.
2.4 Power supply
Putting the balance into operation
11
PG/SG balances (except PG803) adapt themselves automatically to a line
voltage between 100 V and 240 V 50/60 Hz.
PG/SG balances can be made dead only by disconnecting the power
receptacle-outlet must therefore be in the vicinity of the balance and easily
accessible. PG/SG balances may be operated only with a power supply with
grounding conductor.
For PG803 only
First check whether the voltage printed on the AC adapter matches your local line
voltage. If this is not the case, on no account connect the AC adapter to the power
supply, but contact your METTLER TOLEDO dealer.
Two different AC adapters with national power cable are available for your
PG803:
- 100-120V, 50/60 Hz
- 200-240V, 50/60Hz.
If you wish to work with the holder (1) supplied with the AC adapter: Attach the
holder with two screws to a suitable, sufficiently stable area (e.g. on the wall or
the underside of a bench top). Press the AC adapter into the holder.
Note:
The AC adapter can be removed from the holder by pressing the projecting lug.
plug.
The
Connect the AC adapter to the power supply and to the connection socket of your
balance.
Ensure that the AC adapter can never come into contact with liquids!
Putting the balance into operation
12
OFF
The balance now performs a self-test in which all display segments light up
briefly. "OFF" then appears in the display ("OFF" indicates that the balance has
\
been disconnected from the power supply).
On\
Off \
I \
135
inn \
Press the «On/Off» key. The display briefly provides information on the installed
software version and the normal weight display then appears.
i
Allow your balance to warm up for 30 minutes to enable it to adapt itself to the
o
ambient conditions.
n
2.5
Adjusting (calibrating)
An adjustment (i.e. adjustment to the acceleration due to gravity) is needed when putting into operation
o
n
Your balance is equipped with an automatic adjustment or test procedure. If it is outside the adjustment tolerance, the
balance uses a flashing display «Cal» to prompt you to adjust (calibrate) with the internal weight at a keystroke or with
an external weight. With certified balances, the adjustment (calibration) is performed automatically with the internal weight
in compliance with the relevant national weights and measures legislation. Adjustment (calibration) with external weights
is not allowed underweights and measures legislation. You can also choose between the internal and an external weight
when checking the adjustment. In the factory, the balance is set for adjustment with the built-in adjustment weight. You
will find information on how to select the type of adjustment and how to perform the adjustment with an external weight
in sections 4.10 and 5.6.
for the first time and after every location change. In colloquial language, this operation is frequently also
referred to as "calibration" (to avoid misunderstandings, this term is enclosed in brackets when
necessary). You should also adjust (calibrate) your balance at regular intervals in weighing operation
to obtain precise results. If you work according to GLP (Good Laboratory Practice) and SOP (Standard
Operating Procedure), please note the stipulated intervals for the adjustment (calibration).
the
balance
When putting your new balance into operation for the first time, we recommend adjusting (calibrating) it with the internal
weight after the warm-up phase. Proceed as follows:
1/10 d
Cal
long
nn
u.u«
CRi ,nt
\
\
Ensure that the weighing pan is unloaded. There is no need to tare the balance
before adjustment (calibration).
Initiate the adjustment operation by pressing and holding the «Cal» key. The
balance shows briefly that adjustment (calibration) is being performed with the
internal weight.
Putting the balance into operation
The following displays appear during the adjustment:
13
Cal \
Cal \
nnn \
uuu \
Cal \
CRL donS \
\
G.S?
9 \
The internal weight is loaded.
The internal adjustment weight is raised.
The balance processes the adjustment results.
The balance reports successful completion of the adjustment (calibration).
The balance automatically returns to the weighing mode.
—BALANCE CALIBRATION—
18.01.94 11:23:34
METTLER TOLEDO
Balance
Type:
PG502
SNR: 1105238536
Int.
calibration done
Signature :
END
You can abort an ongoing adjustment (calibration) at any time by briefly
pressing the «C» key.
If the adjustment (calibration) can not be performed properly (e.g. owing to
vibrations), the balance stops the adjustment process and the display shows
"Abort". Press the «C» key to clear this message and restart the adjustment
operation.
If your balance is connected to a printer, the adjustment (calibration) is recorded
automatically. The record opposite is a specimen printed out using the METTLER
TOLEDO LC-P45 Printer. In this case, the internal adjustment (calibration) has
been initiated by the printer. Depending on the attached printer, the printout may
differ somewhat from the example shown.
Weighing made simple
14
3.
Weighing made simple
This section shows you how to perform simple weighings, how you can accelerate the weighing process and print out the
weighing result and transfer data.
3.1
Switching
Your balance is set in the factory so that it automatically switches to the weighing mode when you load a weight in the
standby mode.
the
balance
on and off
On'
on
nnn
u.uu
OFF
O
n
To switch the balance on, press the «On/Off» key briefly. As soon as the normal
weight display appears, your balance is ready to weigh.
Note
In section 4 you will learn how to perform a display test in which all segments
of the display light up briefly when you switch on the balance.
To switch the balance off, press the «On/Off» key and keep it pressed until the
message "OFF" appears in the display.
After it has been switched off, your balance is in the standby mode. If you wish
to perform a weighing, you need now only place the sample on the weighing pan
and your balance immediately displays the result. There is no need to switch it
on with the «On/Off» key.
As your balance needs no warm-up time when in the standby mode and is
immediately ready for weighing, we advise you to switch off the instrument only
by use of the «On/Off» key and not to disconnect it from the power supply. This
also ensures that the balance is always in thermal equilibrium.
Weighing made simple
15
3.2 Taring the balance
The weight of any weighing container can be "tared" at a keystroke to set the display to zero. The taring range covers the
entire weighing range of your balance.
If you wish to tare a container, place it on the weighing pan.
Close all draft shield doors.
Press the «->0/T<-» key briefly to start the taring operation.
Taring runs automatically. If you tare the balance when it is unstable, the taring
procedure will be shown in the display by horizontal segments.
n n n
uuu
o
n
On completion of taring, the zero display appears and your balance is ready for
weighing.
Taring can be aborted by pressing the
is in an unstable (not yet tared) condition.
«-*0/T<-»
key again when the balance
Weighing made simple
16
3.3 Performing a simple weighing
Performing a simple weighing is described only tor the sake of completeness as this operation comprises only two work
steps.
After you have tared the balance, place the weighing sample on the pan.
Wait until the circular symbol of the stability detector fades. Fading of the symbol
indicates that the weighing result is stable.
o W0Q6<?
g
Now read off the weight in the display.
500.53
g
3.4 Faster weighing with lower readability
Your balance allows you to lower the readability (number of decimal places) at any time and thus accelerate the weighing
process.
The balance is operating with normal readability and speed.
Lfnncp Q \ Note
* \ The number of decimal places which are displayed with normal readability
depends on the balance model, the weighing range and the selected weighing
unit.
1/10 d
Cal
g
Press the «l/10d» key briefly and
... the balance operates with lower readability (one decimal place less), but
displays the result appreciably quicker. By pressing the «l/10d» key again
briefly, you can return to normal readability.
Weighing made simple
17
3.5 Switching weighing units
Your balance can display the weighing result in two different weighing units. How you preselect the two weighing units
is described in sections 4.4. and 4.5.
You can switch between the two weighing units at a keystroke:
The balance shows the result in weighing unit 1.
SQ26C g
Press the
The balance shows the result in weighing unit 2. By pressing the
again,
Notes
If an additional unit
two weighing units, you have preselected a function in the menu. You will find
further information on the functions in sections 4.3 and 5.1 through 5.4.
The following weighing units are set in the factory:
For PG balances with 1 mg readability
Weighing unit 1: g (grams)
Weighing unit 2: mg (milligrams)
For PG balances with 10 mg readability
Weighing unit 1: g (grams)
Weighing unit 2: g (grams)
For PG/SG balances with 0.1/1 g readability
Weighing unit 1: g (grams)
Weighing unit 2: kg (kilograms)
«!£3»
key briefly.
you can return to weighing unit 1.
(e.g."%"
or "PCS") is displayed when switching between the
«!£*»
key
You will find a table of the conversion factors between the various weighing units
in section 8.2.
Weighing made simple
18
3.6 DeltaRange balances with movable fine range
METTLER TOLEDO DeltaRange balances have a movable fine range with 10 times higher readability. An additional decimal
place always appears in the display in this fine range.
The illustration opposite shows the principle of the movable fine range in which
og
A
10mg
<||
1 mg
«•—100
g—*
nnnn
u.uuu
]|>10mg
n
y
one extra decimal place
encompasses 100 grams).
510g
After the balance has been switched on, DeltaRange balances operate in the fine
range as standard.
is
shown (in this example, the movable fine range
i
m
56
nnn n
auuu
g
n
y
If the fine range in the display
switches to the lower readability.
However, the fine range can always be recalled by taring the balance again.
is
exceeded, the balance display automatically
J
3.7 Printing out the weighing result and transferring data
If your balance
identifications and other data to the attached device with a single keystroke.
Menu
is
connected to a printer via the LocalCAN universal interface, you can transfer current weighing results,
Press the «E»» key briefly. As soon as the weighing result is stable, the status
5G268
g
indicator
device.
You will find additional information on the attachment of a printer in section 6.4
and in the documentation accompanying your printer.
of
the readability fades and the result
is
transferred
to
the attached
4.
The
The menu
19
menu
4.1 What
is
the menu?
The menu allows you to match your balance to your specific weighing needs. In the menu you can change the settings
of your balance and activate functions.
The menu contains 11 different items, each of which offers various selection possibilities.
1
1.
Function
P nonf
r
\
2.
Weighing unit 1
Un .t .'
r
1
3. Weighing unit 2
Un.t ?
r
\
4.
Vibration adapter
B e
r
5. Weighing process
adapter
rn p
L±l <-
r
}
6. Repeatab
\g\ Sood
lity
9
mg
I
12.
Settings
rESEfc
i
i
11.
Autozero
I
i
10.
Power-up mode
°,u.
Stflrh
i
i
9. Automatic adjustment
call-up
Info"'Gfl
I i
8. Adjustment
CRL .nt
i i
7. Automatic shutdown
fl.off
-
Function:
2.
Weighing unit I9":
3. Weighing unit 2*:
4. Vibration adapter:
5. Weighing process adapter:
6. Repeatability:
7. Automatic shutdown:
8. Adjustment (calibration):
9.
Automatic adjustment
call-up:
10.
Power-up mode:
11.
Autozero:
12.
Settings:
* With certified balances, the weighing unit has a fixed setting and can not be
changed.
Preselection of the function you wish to have
available in weighing operation at a keystroke.
Specification of the 1st weighing unit in which
the balance should show the result.
Specification of the 2nd weighing unit in which
the balance should show the result.
Matching the balance to the ambient conditions.
Matching the balance to different types of weig-
hing.
Selection of the repeatability of the weighing
results.
Preselection of the time after which the balance
should be switched off automatically.
Default settings for the type and testing of the
adjustment (calibration).
Switch adjustment call-up to the display on or
off.
Start without or with display test.
Switching the automatic zero correction (Auto-
zero) on or off.
Reset all menu settings to the factory setting or
print out the current settings.
1.
** With certified balances, only the weighing units permitted by the respective
national weights and measures legislation can be selected.
Note:
You will find a graphical overview of the entire menu with all setting options in
section 8.1.
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