Mettler Toledo AL, PL, PL-S Operating Instructions Manual

Operating Instructions

METTLER TOLEDO Line of Classic Light Balances

• AL

• PL / PL-S

Operating instructions in a nutshell

Recall weight / Recall weight value*

0.00 g

26.72 g

0.00 g

26.72 g

0.00 g

95.97 g

-121.01 g

▼

260.33 g

Press key briefly

▼

Press and hold key down until the desired display appears automatic sequence

Switching on

88888888

0.00 g

Switching off

OFF

Off

Simple weighing

0.00 g

• 1182.03 g

1250.00 g

Taring

0.00 g

121.01 g

0.00 g

Piece counting*

0.00 g

12.07 g

SEt 20

PCS

244

PCS

147.25 g

“

Percent weighing*

0.00 g

12.07 g

SEt100

100.00

101.60

Dynamic weighing*

“

0.00 g

• 257.35 g

-- 3 --

-- 1 --

with manual start (Dyn M)

SEt 10

▼

with automatic start (Dyn A)

▼

260.33 g

-- 3 --

-- 1 --

…

Plus-minus weighing*

toLá

15.13 g

tArGEt

- ok +

15.13 g

- +

1.00

- +

1.01

- +

5.00

- +

15.13 g

“

Free factor / selectable display increment*

F FAC ŸÖ

1.0000

1/10d

0.9999

0.9500

StEPá

“

0.01

0.02

1/10d

…

0.05

“

17.00

Unit switching*

22.00 g

0.78

“

…

PCS

* These functions must be activated in the menu (section 4.3.2)

0.00 g

▼

17.89 g

▼

CAL

CAL donE

2000.00

------

0.00

------

0.00 g

▼

Cal

▼

Cal

Adjusting (calibration) external

Contents

1 Getting to know L/L-S balances line .............4

1.1 General .............................................................. 4

1.2 Layout of balances ............................................... 4

1.3 Overview of key functions ...................................... 5

2 Startup ......................................................6

2.1 Unpacking / standard equipment ............................ 6

2.2 Cautionary notes ................................................. 6

2.3 Setting up, leveling, preparations for weighing

below the balance ................................................ 7

2.4 Power supply ....................................................... 7

2.5 Adjusting (calibration) .......................................... 9

3 Weighing .................................................10

3.1 On/Off switching ................................................. 10

3.2 Simple weighing ................................................ 10

3.3 Faster weighing with reduced readability ............... 10

3.4 Taring ............................................................... 10

4 Menu .......................................................11

4.1 Overview ........................................................... 11

4.2 Menu operation .................................................. 12

4.3 Description of menu options ................................ 12

5 Functions .................................................17

5.1 Recall weight / Recall weight value ....................... 17

5.2 Piece counting ................................................... 17

5.3 Percent weighing ................................................ 18

5.4 Weighing with free factor and/or selectable display

increments ........................................................ 18

5.5 Plus-minus weighing .......................................... 20

5.6 Dynamic weighing ............................................. 21

5.7 Switching weight units ........................................ 22

6 Technical data, options, optional

equipment ...............................................23

6.1 Technical data ................................................... 23

6.2 Options ............................................................. 26

6.3 MT-SICS Interface commands and functions .......... 27

6.4 Optional equipment ............................................ 29

6.5 Dimensional drawings (in mm) ........................... 30

7 Appendix .................................................32

7.1 Typical printouts from METTLER TOLEDO

RS-P26, RS-P42 and LC-P45 printers .................. 32

7.2 What if ...? ........................................................ 33

7.3 Maintenance and cleaning .................................. 34

7.4 Declaration of conformity .................................... 35

Getting to know L/L-S balances line 4

1 Getting to know

L/L-S balances line

1.1 General

Balance features

• The

L/L-S

balance line ranges from high-resolution analytical balances

(AL) with

a readability of 0.1 mg through to

precision balances (PL/PL-S)

with a read

ability of 0.001 g to 1 g. The weighing ranges extend from

g to

8.1

kg.

• In addition to basic operations such as

weighing

, taring

and

adjusting

(cali

bration) miscellaneous functions such as

“Recall weight”

“Piece counting”

“Percent weighing”,

“Dynamic weighing”, “+/- Weighing”

“Free factor”

can be activated.

• Severa

l L/L-S

balances are fitted with a glass draft shield in the factory; with other

models a draft shield is available as an optional extra.

1.2 Layout of balances

Keys

2 Display 3

Model plate with the following data: “Max”: maximum capacity “d”: readability

“Min”: minimum capacity (recommended minimum load;

only relevant for

certified balances

)

“e”: verification scale interval (smallest display increment tested during

certification,

only relevant for certified balances

)

Weighing pan

Draft shield element (not on all models)

Draft shield (supplied as standard with models with a readability of 0.1 mg and

1 mg)

7 Leveling feet (not all models) 8 Hanger opening for weighing below the balance (underside of balance) 9 AC adapter socket 10 RS232C interface

(optional on PL-S models)

Lug for optional antitheft device

Leveling control (not all models)

Compartment for batteries (only PL-S models, except PL203-S)

14 Optional interface for special PL-S auxiliary display (only PL-S models)

Keys and display are identical for all

L/L-S

balances.

PL-S

Getting to know L/L-S balancees line

Key functions in menu mode

Press briefly Press and hold down

1/10d • Change settings 1/10d • Reduce value

• Reduce value by 1 step rapidly

C • Close menu (without –

saving changes)

“ • Change settings “ • Increase value rapidly

• Increase value by 1 step

± • Select next menu item Menu • Save changes and close menu

Key functions in weighing mode

Press briefly Press and hold down

1/10d • Reduce readability Cal • Adjust (calibrate)

On • Switch on Off • Switch off

# • Zero/tare

C • Cancel function

“ • Switch F • Call function;

• Change settings A function must be activated in the menu, otherwise “F nonE” appears in the display

± • Transfer weighing data via Menu • Show menu (hold key interface with activated down until MENU printer appears)

• Confirm settings

1.3 Overview of key functions

The balances have two operator control levels: the weighing mode and the menu. The function of each individual key depends on the operator control level and how long the key is pressed.

Weighing mode

▼

0.000

ŸÖENV

Startup 6

2 Startup

2.1 Unpacking / standard equipment

The standard equipment for every balance comprises:

• AC adapter, to national standard

• Weighing pan, Weighing pan support, draft shield element (depending on model)

• Draft shield

standard supply with models of 0.1 /1 mg readability (

for other models available as an optional extra

)

• Operating Instructions

• Protective cover for PL-S (placed on the balance over the weighing cell cone) with instruction sheet. This protective cover

must not mislaid. It will be needed again later to protect the cone when changing batteries (underside of balance).

1) In-use covers are available as optional extras (Section 6.4). In the case of models having the large weighing pan (ø 160 mm) the antistatic plate a) (secured by two screws) and the adapter ring b) must also be removed in order to fit the in-use cover.

• L/L-S balances must not be operated in hazardous areas with the standard supply AC adapter.

• Before connecting the AC adapter, verify that the voltage printed on it corresponds to the local AC power supply voltage. If this is not the case, please contact your local METTLER TOLEDO dealer.

• L/L-S balances may only be used indoors in a dry environment.

• For use with CSA Certified (or equivalent approved) power source, which must have a limited and SELV circuit output.

2.2 Cautionary notes

Startup

2.3 Setting up, leveling, preparations for weighing below the balance

The optimum location

The correct location makes an important contribution to the accuracy of the weighing results of high-resolution analytical and precision balances.

• Stable, vibration-free position as horizontal as possible

• No direct sunlight

• No excessive temperature fluctuations

• No drafts

The best location is on a stable bench in a corner protected against drafts, as far away as possible from doors, windows, radiators or the louvers of air conditioners.

Leveling

Some models are equipped with a level glass and two or four leveling feet to compensate for minor irregularities in the surface on which the balance stands. The balance is exactly horizontal when the air bubble is in the middle of the level glass.

Note: The balance should be leveled each time it is moved to a new location.

Preparations for weighing below the balance

To carry out weighing operations below the balance, get rid of the special cover on the underside of the balance. (Note: never put the balance without the protective cover over its cone down on its head, only on its side!). This exposes the opening for the hanger, making weighing below the balance possible.

Antitheft device

All models are provided with a lug for attaching an antitheft device (see optional equipment in Section 6.4).

➞ Plug the AC adapter into the AC adapter socket on the balance, and connect to

the power supply.

➞ The balance performs a self-test. This test is finished when “OFF” appears. ➞ Press the «On» key briefly: the balance is in operational readiness. Before any

work is performed with the balance, it must be adjusted (Section 2.4).

Notes

To achieve accurate results with analytical balances (AL), they must be left switched on for at least 60 minutes to reach operating temperature before carrying out the first weighing operation.

2.4 Power supply

Startup 8

Battery operation (PL-S models only, except PL203-S)

Models in the PL-S line of balances (except PL203-S) can also be operated independently of the AC power supply by using their batteries. To do this, always fit the protective cover over the weighing cell cone first, then open the cover of the battery compartment on the underside of the balance and insert the batteries.

Caution: ensure correct polarity (as specified inside the battery compartment). Close battery compartment again.

When the balance is operating on its batteries, the border around the battery symbol in the display lights up. The number of segments that are lit is an indicator of battery condition (3 = fully charged, 0 = discharged). When the batteries are almost completely discharged, the last segment flashes.

Recommended battery type: AA (LR6) 1.5 V alkali-manganese. NiMH (nickel-metal hydride) rechargeable batteries, which are recharged in an external battery charger, can be also be used. The

intervals between recharging are not as long as the service life of a nonrechargeable battery.

Notes

• Batteries are not included in the standard supply.

• Battery operation is automatically overridden when the AC adapter is connected to the AC power supply.

• To prolong battery (disposable or rechargeable) life, it is advisable to activate «Auto shut» in the menu (see Section 4.3.7).

• All discharged batteries must be disposed of in an environmentally responsible manner. No attempt must be made to incinerate or disassemble them.

• AL, PL and PL203-S Models cannot be operated with batteries.

Rechargeable battery operation “AccuModule” with internal charger (option for PL-S models only, except PL203-S) PL-S Models (except PL203-S) can also be operated with a battery charger integrated in the instrument. This option is not part

of the standard supply. It must either be ordered when the balance is purchased or be retrofitted later by a METTLER TOLEDO dealer.

Caution If the balance is equipped with an “AccuModule” internal battery charger, on no account

must normal (i.e. disposable, nonrechargeable) batteries be used! This would consti-

tute a fire and explosion hazard. Only rechargeable NiMH (nickel-metal hydride) batteries may be used. Balances equipped with the internal charger have the following

warning notice on the cover of the battery compartment and on an adhesive label on the underside of the balance: “CAUTION! Risk of Battery Explosion if batteries are re-

placed with incorrect type. Replace only with type NiMH RECHARGEABLE batteries”.

If weighing with power supply connection > 48 h, the batteries must be removed (overheating hazard).

Always fit the protective cover over the weighing cell cone before removing the cover of the battery compartment on the

underside of the balance and inserting the NiMH rechargeable batteries. Note: ensure correct polarity (as specified inside the battery compartment)! Close battery cover again.

Charging NiMH batteries

Always charge NiMH rechargeable batteries fully before putting them into service. To do this, it is sufficient for the balance to be connected to the power supply by the AC adapter. It is not necessary for the balance to be switched on.

If the balance is switched on during charging, the display flashes in waves. Once the batteries are fully charged, all three segments of the symbol are permanently lit.

The condition of the rechargeable batteries is displayed at all times when the instrument is in use (just as with normal batteries).

Startup

CAL

CAL donE

2000.00

------

0.00

------

0.00 g

▼

Cal

▼

2.5 Adjusting (calibration)

Adjusting with external weight

➞ Have required adjusting weight ready. ➞ Unload weighing pan. ➞ Press and hold the «Cal» key down until “CAL” appears in the display. Release

key.

The required adjustment weight value flashes in the display. ➞ Place adjustment weight in centre of pan. The balance adjusts itself auto-mati-

cally.

➞ When “0.00 g” flashes, remove adjustment weight. The adjusting is finished when the message “CAL done” appears briefly in the

display, followed by “0.00 g”. The balance is again in weighing mode and ready for operation.

Notes

• Certified PL-S models cannot be adjusted by the user, because of weights and measures legislation.

• This adjustment procedure can be terminated at any time with the «C» (“Cancel”) key. The balance reverts to weighing mode.

Cal

To obtain accurate weighing results, the balance must be adjusted to match the gravitational acceleration at its location.

Adjusting is necessary

• before the balance is used for the first time

• at regular intervals during weighing service

• after a change of location

To obtain accurate results, the balance must be left switched on for 60 minutes to reach operating temperature before starting the adjustment procedure.

Notes

• NiMH rechargeable batteries are included in the standard supply (“AccuModule”).

• Battery operation is automatically overridden when the AC adapter is connected to the AC power supply.

If weighing with power supply connection > 48 h, the batteries must be removed (overheating hazard).

• To prolong battery life, it is advisable to activate «Auto shut» in the menu (see Section 4.3.7).

• All discarded batteries must be disposed of in an environmentally responsible manner. No attempt must be made to incinerate or disassemble them.

• AL, PL and PL203-S Models cannot be operated with with rechargeable batteries.

Weighing 10

3 Weighing

3.1 On/Off switching

Switching on

➞ Remove any load from weighing pan and press «On» key briefly. The balance performs a display test (all segments in the display light up

briefly).

When zero is displayed, the balance is ready for operation.

Switching off

➞ Press and hold the «Off» key down until “OFF” appears in the display. Release

the key.

88888888

▼

0.00 g

OFF

▼

Off

3.2 Simple weighing

➞ Place weighing sample on the weighing pan.

➞ Wait until the stability detector “•” disappears.

➞ Read the result.

0.00 g

• 1182.03 g

1250.00 g

3.3 Faster weighing with reduced readability

The balance has the facility for speeding up the weighing operation by reducing its readablity (number of decimal places):

➞ The balance is operating with its normal readability and speed.

➞ Press the «1/10d» key and … ➞ … the balance operates with reduced readability (one decimal place less), but

displays the weighing result quicker. Pressing the «1/10d» key briefly again toggles the balance back to its full readability.

1.24 g

1.2 g

1/10d

3.4 Taring

➞ Place empty container on the balance.

➞ The weight is displayed.

➞ Press the «#» key briefly.

➞ Add weighing sample to container. The net weight is now displayed.

If the container is removed from the balance, the tare weight will be shown as a

negative value.

The tare weight remains stored until the «#» key is pressed again or the

balance is switched off.

0.00 g

121.01 g

0.00 g

95.97 g

-121.01 g

rESEt

LiST

F rEcALL

FdynÑÖ

F100

F nonE

Std

dosrobust

Unit 1

ozt

Unit 1

Unit

Unit 1

dwt

t o

t tl

S tl

H tl

Unit 1

b t

Unit 2

ozt

Unit 2

t o

dwt

Unit 2

b t

HoSt

ZDISPLAY

F PÑÖ

- ok +

no A.ZEro

A.Off -

A.Off

S. StbS. ALL

S. PÑÖ

4800

9600

1200

bd 600

19200

7b-no

7b-odd

8b-no

SoFt

HArd

Unit 2

A.ZEro

A.Off 10'

HS OFF

7b-E

bd 2400

S. SICS

S. oFF

PrintEr

S. ContS. Auto

F count

PCS

FAC

ÑÖ

FAC d

Fdyn A

4 Menu

4.1 Overview

In the menu you can change the weighing unit, select additional functions and carry out various settings. A description of the individual menu options is given in Section 4.3.

1 Reset

2 Function

3 Weighing

mode

4 Weighing

unit 1

6 Autozero

7 Auto shut off

8 Peripheral

unit

10 Send

format

4) 6)

9 Send

mode

3) 6)

11 Baud rate

5) 6)

12 Bit/Parity

5) 6)

13 Handshake

5) 6)

Overview of menu

Notes

With certified balances, this menu option has a fixed setting and cannot be changed.

With certified balances, only those weighing units allowed by the appropriate national weights and measures legislation

may be selected.

This menu option is only shown if “Host” has been selected in menu option 8 (Peripheral unit).

This menu option is only shown if “S.oFF” has not been selected in menu option 9 (Send mode).

These menu options are only shown if “Host” or “Printer” has been selected in menu option 8 (Peripheral unit).

Only displayed if an interface has been installed.

Factory setting

Menu option

5 Weighing

unit 2

+ 25 hidden pages

Mettler Toledo AL, PL, PL-S Operating Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Operating Instructions

Operating instructions in a nutshell

Contents

1.1 General

1.2 Layout of balances

1.3 Overview of key functions

2 Startup

2.1 Unpacking / standard equipment

2.2 Cautionary notes

2.3 Setting up, leveling, preparations for weighing below the balance

2.4 Power supply

2.5 Adjusting (calibration)

3 Weighing

3.1 On/Off switching

3.2 Simple weighing

3.3 Faster weighing with reduced readability

3.4 Taring

4 Menu

4.1 Overview