Sartorius LC 621S-00MS, AC 211S-00MS, LC 621P-00MS, LC 6201S-00MS, LC 4201S-00MS User Manual

...
Sartorius Master Series
Electronic Weighing Instruments Accuracy Class k or K Analytical and Precision Balances
Installation and Operating Instructions for Standard Models and EC-Approved Models Acceptable for Legal Metrological Verification
98648-004-03

Contents

Page
General Views of the Balances 1– 1 Warranty 1– 6
Storage and ShippingCondtions 1– 6
Installation Instructions 1– 7
Getting Started 1– 9
Connecting the Balance to AC Power 1–10 Voltage Selection 1–11 Connecting Electronic Devices (Peripherals) 1–11 Safety Precautions 1–11 Information on Radio Frequency Interference 1–12 Adjusting the Display Unit 1–12 Information on Weighing Electro­statically Charged Samples 1–12 Leveling the Balance Using the Level Indicator 1–13
Operating the Balance 1–14
Warmup Time 1–14 Turning the Display On and Off 1–14 Self-Test 1–14 Taring 1–16 Weighing 1–16 Weighing Range Structure 1–17
Weighing in the IQ-Mode (Load-Dependent Readability) 1–18
Calibration 1–19
Sensitivity Test 1–23
Data Interface 1–25 Below-Balance Weighing 1–27 Fastening an Antitheft Locking Device 1–27 Troubleshooting Guide 1–28 Care and Maintenance 1–30 Manufacturer’s Declaration 1–32
Page
Balance Operating Menu 2– 1
Changing a Menu Code Setting 2– 2
Undoing All Menu Code Changes: Reset Function 2– 4
Balance Operating Parameters 2– 5
Adapting the Balance to Ambient Conditions 2– 5 Standard Weighing Mode – Manual Filling Mode 2– 5 Stability Range 2– 5 Stability Symbol Delay 2– 6 Tare Parameter 2– 6 Auto Zero Function 2– 6
Weighing in Three Ranges on Standard Balances 2– 7
Selecting the Number of Ranges 2– 7 Weight Units 2– 7
Weighing in Two Ranges on Verified Balances 2– 9
Selecting the Number of Ranges 2– 9 Weight Units 2– 9
Display Modes on Standard Balances 2–10
Final Readout Mode 2–10 Last Numeral Blanked When the Load Changes 2–10 Round-Off Function 2–10 IQ-Mode 2–10 PolyRange Function 2–11
Display Modes on Verified Balances 2–12
Calibration Functions on Standard Balances 2–13
0–1
Page
Page
Calibration Functions on Verified Balances 2–14
Utilities for Printouts or Data Transfer 2–15
Data Output Parameter 2–15 Automatic Data Output 2–15 Data Output at Defined Intervals 2–16 Automatic Taring after Data Output 2–16 Data ID Codes 2–17
Additional Functions 2–18
Menu Access Function on Standard Balances 2–18 Function of the Menu Access Switch on Verified Balances 2–18 Beep Tone (Acoustic Signal) 2–18 Blocking the Keys 2–18 Universal Switch for Remote Control 2–19 Analog Display: Bar Graph/Marker 2–19 Power-On Mode 2–19 Automatic Shutoff (Battery Saver) 2–20 Display Backlighting 2–20
“isoCAL” Self-Calibrating Function on AC/LC…-00MS/
-0CEMS Models 3– 1
Range of Performance Features 3– 1
“isoCAL”Self-Calibrating Function 3– 2
Flashing W Symbol 3– 2 Activating Internal Calibration Manually 3– 3 Automated Processes 3– 4 Printout or Record of Calibration Processes 3– 4
Calibrating Balances when Using YDK 01,
YWP 01, YWP 01U or YWP 02 Accessories 3– 4 Calibration with the MC1-MP8 Interface (Binary Converter) 3– 4
Application Programs for Balances
of the Product Line 4– 1
Functions Common to All Programs 4– 2
Tare Memory 4– 4
Display/Print Tare – Net – Gross Weights 4– 4 Net Total 4– 5
0–2
Weighing in Percent 4– 6
Determination of the Residual Weight in Percent 4– 6 Sieve Analysis 4– 7
Over/Under Checkweighing 4– 9
Checking Net Weights 4–10 Checking Variations in Weight 4–11
Counting 4–13
Page
Page
Interface Description 5– 1 General Specifications 5– 1 Data Output Formats 5– 2 Data Input Formats 5– 6
Table of ASCII Characters 5– 9
Synchronization and Data Output Parameters 5–10
Settings for the Interface Parameters 5–13
Control Lines 5–14 Pin Assignment Chart 5–15 Cabling Diagram 5–16
Product Data Sheets 6– 1
Specifications 6– 2
EC Pattern Approval Certificates 6–20
Dimensions (Scale Drawings) 6–24
Accessories (Options) 6–28
Declarations of Conformity 7– 1
The CE Mark of Conformity on Sartorius Equipment 7– 1
“EC Verification” – A Service Offered by Sartorius for Balances Acceptable for Verification 7– 4
“New Installation” – A Service Offered by Sartorius 7– 4 Subsequent Verifications within the European Union 7– 4 Sartorius European Service
Center Addresses 7– 5
Declaration of Conformity to Directive No. 90/384/EEC 7– 6
Certification for the Sartorius Quality System for the Weighing Technology Division (in German) 7– 7
Declaration of Conformity to Directive 89/336/EEC 7– 8
Supplement:
Brief Instructions
0–3
ACSeries Balances with an Analytical Draft Shield Chamber
1 Weighing pan 2 Protective ring 3 Shield plate 4 Draft shield base plate 5 Menu access switch 6 Weight display 7
f function key 8 w toggle key 9 Info key
10 Tare key 11 Print key p 12 F function key 13 c key 14 ON/OFF key e
15 Verification ID label with metrological
data for verified balances approved
for use as legal measuring instruments 16 Manufacturer’s label 17 Level indicator 18 Lug for attaching an antitheft locking device 19 AC jack/power receptacle 20 Data interface port 21 Leveling foot 22 Auxiliary foot 23 Metrological ID label
for verified balances approved
for use as legal measuring instruments
1–1
LC Series Balances with a Round Glass Draft Shield
1 Weighing pan 4 Draft shield base plate 5 Menu access switch 6 Weight display 7 f function key 8 w toggle key
9 Info key 10 Tare key 11 Print key p 12 F function key 13 c key 14 ON/OFF key e 15 Verification ID label with metrological
data for verified balances approved for use as legal measuring instruments
1–2
16 Manufacturer’s label 17 Level indicator 18 Lug for attaching an antitheft locking device 19 AC jack/power receptacle 20 Data interface port 21 Leveling foot 22 Auxiliary foot 23 Metrological ID label
for verified balances approved
for use as legal measuring instruments 24 Draft shield lid 25 Glass draft shield cylinder 26 Pan support disk
LC Series Balances with a Round Pan/GC1201-G
1 Weighing pan 5 Menu access switch 6 Weight display 7 f function key 8 w toggle key
9 Info key 10 Tare key 11 Print key p 12 F function key 13 c key 14 ON/OFF key e 15 Verification ID label with metrological
data for verified balances approved for use as legal measuring instruments
16 Manufacturer’s label 17 Level indicator 18 Lug for attaching an antitheft locking device 19 AC jack/power receptacle 20 Data interface port 21 Leveling foot 22 Auxiliary foot 23 Metrological ID label
for verified balances approved
for use as legal measuring instruments 26 Pan support disk 27 Centering disk
1–3
LC Series Balances with a Rectangular Pan and a Capacity Less Than12 kg
1 Weighing pan 5 Menu access switch 6 Weight display 7 f function key 8 w toggle key
9 Info key 10 Tare key 11 Print key p 12 F function key 13 c key 14 ON/OFF key e 15 Verification ID label with metrological
data for verified balances approved for use as legal measuring instruments
1–4
16 Manufacturer’s label 17 Level indicator 18 Lug for attaching an antitheft locking device 19 AC jack/power receptacle 20 Data interface port 21 Leveling foot 22 Auxiliary foot 23 Metrological ID label
for verified balances approved for use as legal measuring instruments
28 Pan draft shield (metal frame,
depending on the model)
29 Dust cover
LC Series Balances with a Capacity Greater Than12 kg
1 Weighing pan 5 Menu access switch 6 Weight display 7 f function key 8 w toggle key 9 Info key
10 Tare key (labeled “TARE” on balance models
acceptable for verification) 11 Print key p 12 F function key 13 c key 14 ON/OFF key e
15 Verification ID label with metrological
data for verified balances approved
for use as legal measuring instruments 16 Manufacturer’s label 17 Level indicator 18 Lug for attaching an antitheft locking device 19 AC jack/power receptacle 20 Data interface port 21 Leveling foot 23 Metrological ID label (only for models
acceptable for legal metrological verification)
1–5
With this Sartorius balance, you have acquired a high-quality electronic weighing instrument that will ease your daily workload.
Please read through these installation and operating instructions carefully before operating your new balance.
In the first part of these installation and operating instructions, it is assumed that you are using the factory­set menu codes.

Warranty

Do not miss out on the benefits of our full warranty. Please complete the warranty registration card, indicating the date of installation, and return the card to your Sartorius office or dealer.

Storage and Shipping Conditions

Allowable storage temperature: +5°C ... +40 °C +41°F ...+104°F
The packaging has been designed to ensure that the balance will not get damaged even if it is dropped from a height of 80 cm max. (about 32 inches).
Carefully unpack the balance and check the equipment immediately for any visible damage as a result of rough handling during shipment. If this is the case, proceed as directed in the section entitled “Safety Inspection.”
1–6
Save the box and all parts of the packaging in case you need to ship your balance. For shipping your balance, disconnect all cables before packing. Use only the complete original standard packaging to prevent damage to the equipment during shipment.
Do not expose the balance unnecessarily to extreme temperatures, moisture, shocks, blows or vibrations.

Installation Instructions

Ambient Conditions
Your Sartorius balance will provide accurate readouts even when it is exposed to unfavorable conditions.
Please choose a suitable place to set up your balance. It should not be exposed to the following:
– extreme heat radiation – drafts – extreme vibrations – aggressive chemical atmospheres
The balance may not be used in hazardous areas/locations where there is danger of explosion.
Do not expose the balance to extreme moisture over long periods. Moisture in the air can condense on the surfaces of a cold balance whenever it is brought to a substantially warmer place. If you transfer the balance to a warmer area, make sure to condition it for about 2 hours at room temperature, leaving it unplugged. Afterwards, if you keep the balance connected to AC power, the continuous positive difference in temperature between the inside of the balance and the outside will practically rule out the effects of moisture condensation.
You can adapt the balance to your requirements simply by changing the code settings in the balance operating menu. For more information, please see Part 2, “Balance Operating Menu.”
1–7
Using Verified Balances as Legal Measuring Instruments in the EU* You must calibrate the balance at the place of installation before using it as a legal measuring instrument (see the section entitled “Adjustment/
Calibration” starting on page 1–19). This balance is not allowed to be used for weighing
goods intended for direct sale to the public. The type-approval certificate for verification applies only to non-automatic weighing instruments; for automatic operation with or without auxiliary measuring devices, you must comply with the regulations of your country applicable to the place of installation of your balance. A suitable thermometer and barometer are recommended for monitoring ambient conditions.
For balances of accuracy class k, a thermometer and barometer are recommended for monitoring ambient conditions. The temperature range indicated on the verification ID label must not be exceeded during operation.
The balance must warm up for at least 24 hours
after initial connection to AC power or after a relatively long power outage.
1–8
Sartorius complies with EC Directive No. 90/384/ EEC for non-automatic weighing instruments, which has been in effect since January 1, 1993, within the Single European Market, as well as the accreditation of the Quality Management System of Sartorius AG by Lower Saxony’s Regional Administrative Department of Legal Metrology (Niedersächsische Landesverwaltungs­amt – Eichwesen) from February 15, 1993.
* including the signatories of the Agreement on the
European Economic Area

Getting Started

Important Note Concerning All Verified Balances Approved for Use as Legal Measuring Instruments in the EU
Provided that an official seal is required for the verified balance, a control seal is affixed to the balance. Unauthorized attempts to remove this seal will irreversibly damage it. If you break the seal, the validity of the verification will become void, and you must have your balance re-verified.
Preparing the AC Series Balance
In the following order, install the draft shield base plate (4), the shield plate (3), the protective ring (2) and the weighing pan (1) one at a time in the weighing chamber.
Preparing the LC Series Balance with a Round Glass Draft Shield
Place the draft shield base plate (4) on the balance.
Turn the plate clockwise until it snaps into place (this procedure
for operation with or without a dust cover). Mount the pan support disk (26), the weighing pan (1), the glass draft shield cylinder (25) and the draft shield lid (24) one at a time on the balance.
Preparing the LC Series Balance with a Round Weighing Pan/GC1201-G
Place the centering disk (27) on the balance. Turn the disk clockwise until it snaps into place (this procedure is necessary for preparing the balance for operation with or without a dust cover). Then mount the pan support disk (26) and the weighing pan (1) one at a time on the balance in the order given.
is necessary for preparing the balance
1–9
Preparing the LC Series Balance with a Rectangular Pan and a Capacity Less Than12 kg
Remove the white backing from the adhesive strips on the dust cover. Attach the dust cover to the base of the balance by gently pressing down on the adhesive strips.
Place the pan draft shield (28) (depending on the model) and the weighing pan (1) on the balance.
Important Note:
Double check to make sure that the base dust cover does not touch the weighing pan.
Preparing an LC Series Balance with a Capacity Greater Than 12 kg
Place the weighing pan (1) on the balance.

Connecting the Balance to AC Power

The balance is powered by an AC adapter. Make sure that the voltage rating printed on this unit is identical to that of your local voltage. If the voltage specified on the label or the plug design of the AC adapter does not match the rating or standard you use, please contact your Sartorius office or dealer. Use only original Sartorius AC adapters. Use of AC adapters from other manufacturers, even if these units have an approval identification marking from a national testing laboratory, requires the consent of a certified Sartorius service technician.
1–10
Plug the cord of the AC adapter into the balance.
230 V~ 115 V~
Then insert the plug of the AC adapter in a wall outlet.
Follow this procedure for the following balances:
AC and LC series balances with a capacity less than12 kg
LC series balances with a capacity greater than 12 kg: Insert the right-angle plug in the power receptacle (19) as shown, then tighten the slotted screw with a screwdriver.
Now plug the AC adapter into a wall outlet. Voltage Selection
(does not apply to balances with a capacity greater than 12 kg) You can select the voltage only if you use our portable power supply (6971172) that has a European-type plug (rounded prongs).

Connecting Electronic Devices (Peripherals)

Make sure to unplug the AC adapter from the wall outlet before you connect or disconnect a peripheral device (printer or PC) to or from the interface port of the balance.

Safety Precautions

The AC adapter, rated to Class 2 (double insulation), can be plugged into a wall outlet without taking any additional safety precautions. The pole of the output voltage is connected to the balance housing, which can be grounded for operation. The interface is also electrically connected to the balance housing (ground).
1–11
!
Information on Radio Frequency Interference Warning!
This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause interference to radio communications. It has been tested and found to comply with the limits for a Class A computing device pursuant to Subpart J of Part 15 of FCC rules, which are designed to provide reasonable protection against such interference, when operated in a commercial environment. Operation of this equipment in a residential area is likely to cause interference, in which case the user, at his own expense, will be required to take whatever measures may be required to correct the interference.
Adjusting the Display Unit of an LC Series Balance with a Capacity Greater Than 12 kg
Tilt the display unit to adjust it to the position you desire.
1–12

Information on Weighing Electrostatically Charged Samples

Problems with static electricity can occur in environments with low humidity. To avoid these problems when you use your balance in such an area, wipe down the entire draft shield on both the inside and outside with a commercially available antistatic agent.
If you need to use electrostatically charged glass or plastic containers that have a relatively large diameter with balances that have a readability of 0.1mg, you should utilize our antistatic pan (155 mm Ø – see “Accessories” in Part 6) instead of the standard weighing pan.

Leveling the Balance Using the Level Indicator

At the point of use, level the balance using the
leveling feet (21) as follows so that the air bubble is
centered within the circle of the level indicator (17): Screw in the auxiliary foot (22) located on the front
right-hand side of the balance.
To level the balance using the level indicator as a guide:
Extend the leveling feet (turn clockwise) to lift the balance. Retract the feet (turn counterclockwise) to lower the balance.
Afterwards, extend the auxiliary foot (22) until it touches
the surface on which the balance is resting.
1–13

Operating the Balance

Warmup Time

After initially connecting the balance to AC power (or after a relatively long power outage), the balance will need to warm up for at least 30 minutes.

Turning the Display On and Off (Standby Mode) Press the e key (14) to turn the display on and off.

Self-Test

After the balance has been turned on, an automatic
self-test of theelectronic circuitry will be performed.
The self-test ends with a zero readout; the balance is then ready to operate.
1–14
Important Note Concerning Verified Balances/Scales Approved for Use as Legal Measuring Instruments in the EU:
For verified balances that have a verification scale interval “e” which is greater than the scale interval “d,” the last digit on the display is bordered.
The weight display shows the following special codes for your information:
OFF
The balance was disconnected from AC power (i.e., power failure or outage; the balance was disconntected, then reconnected to AC power).
O (STANDBY)
The display has been turned off using the e key (14),
and the balance is now in the ready-to-operate mode and does not require warmup.
b (BUSY)
Once you have turned on the balance, the b symbol will remain displayed until you press a key. During operation, this symbol indicates that the balance processor is still busy processing a given function and will not accept another command to perform any other function at this time.
R1 or R2
The number in the R code identifies the particular weighing range you have selected.
W
Symbol for the selected application (in this case, the weighing mode).
CAL I
The balance has an internal calibration weight.
1–15

Taring

A weight can be accurately measured only from
a defined zero point. Press one of the two t keys (10)
to zero the display. You can tare the display within the entire weighing range.
Important Note Concerning Verified Balances/Scales Approved for Use as Legal Measuring Instruments in the EU:
The small circle on the left in the weight display shows that the balance/scale has been exactly tared to “0” (±0.25 of a scale interval).

Weighing

Place your sample on the weighing pan (1) to
determine the weight. Read off the weight indicated in the display (6) only once the weight unit/stability symbol (“g”, “kg” or a different unit as selected – see Part 2, “Balance Operating Menu”) is indicated.
Important Note Concerning Verified Balances/Scales of Accuracy Class k
To avoid measuring errors, the respective air density must be allowed for. The following formula is used to calculate the mass of the sample:
m = n
1– ρL/8000 kg m
w
1– ρL/ρ
–3
1–16
m = mass of the sample nw= weight readout
ρ
= air density during weighing
L
ρ = density of the sample
6200g 0.01g
3200g
0.1g
Weighing Range Structure SuperRange
(identified by S in the model designation AC/LC.....S)
“Single wide-range balance”
SuperRange models have an extraordinarily high resolution; i.e., the weighing range has a resolution ranging from100,000 to a few million digits. There is one level of fine readability for the entire weighing range (for example: 0.01g).
DualRange
(identified by D in the model designation LC.....D)
2 weighing ranges: a fine range and a standard range
1000g 0.01g
4800g
3000g
0.00g
1600g
800g
0.1 g
0.05g
0.02g
0.01g
The balance automatically switches from the fine range which is10 times more accurate (e.g.1,000 g capacity – 0.01g readability) to the standard range (e.g., a 3,200 g capacity – 0.1 g readability) when the balance is loaded beyond the fine range limit (>1,000 g). The weight readout is displayed with the lower readability of the standard range until you tare in the fine range (<1,000 g).
PolyRange
(identified by P in the model designation AC/LC.....P)
PolyRange models have a wide weighing range with multiple levels of accuracy that change as the load increases or decreases.
The PolyRange function divides the weighing range into as many as 4 ranges, each with a different readability. In the various ranges, the readability will adjust so that the last numeral of a weight readout is displayed with a resolution of 1, 2, 5 or 10 digits (10 = only the next to the last numeral displayed changes; the last numeral is blanked). After you press the tare key (10), you will obtain the highest possible resolution, even when the balance is loaded.
1–17
Weighing in the IQ-Mode*
(Load-Dependent Readability)
In the IQ-mode, weighing is done with a load­dependent readability of 0.1% (for different settings, see part 2, “Balance Operating Menu”) throughout the entire weighing range of the balance. The display resolution of the last digit changes in increments of 1,2, 5,10, 20, etc., in proportion to the weight of a sample.
Oftentimes, a display accuracy of 2 grams is sufficient for a load of approx. 2 kg. In this case, it makes sense to select weighing range R 2 with an accuracy of 0.1% by pressing the w key (8). While you are filling up to a target weight, it is certainly easier to work with a target of 2220 g than with an absolutely accurate readout of 2219.92 g.
1–18
By selecting the IQ-mode for automatic adaption of the display accuracy, you will obtain stable weight readouts even faster. In daily laboratory routines, analyses must often be performed with a certain accuracy. The IQ-mode meets this requirement – on an analytical balance, it gives you the full accuracy of all 4 decimal places for initial sample weights below1g, whereas for heavier samples (of100 g or more), it provides a lower readability, which is sufficient:
Initial sample weight Readout Below 1 g 0.9876 g
Above 100 g 123.4 g For other readabilities (0.01% – 1%) see page 2–11
of the “Balance Operating Menu.”
* = not applicable to verified balances approved for
use as legal measuring instruments in Europe; on GC 1201G scales, menu code 3 2 9 must be set

Adjustment/Calibration

During calibration1), the balance is adapted to changes in ambient conditions. You should recalibrate your balance each time you set it up in a different area or when the ambient conditions (such as the temperature or the barometric pressure) have changed.
Independent of such changes, you should calibrate balances acceptable for legal metrological verification at least once a day (i.e., even when the ambient conditions remain constant). To meet the highest requirements for accurate weighing, we recommend that you calibrate the balance before each weighing series.
The balance offers you various calibration functions. The function you select is indicated in the display by one of the following codes:
CAL” : calibration function is activated “C– I” : internal calibration “C– E” : external calibration “C– t” : sensitivity test “CAL I”: the balance has an internal
calibration weight
You can use the c key (13) to interrupt any calibration process.
1
) “Calibration” technically means to determine
the difference between the balance readout and the actual weight on the pan to determine the accuracy. Adjustment means to bring a balance into the state of accuracy required for its use. Therefore, “calibration,” as used in this manual, actually means “adjustment.”
1–19
The balance may or may not have an internal calibration weight: – On standard balances, it depends on the model
(see Part 6, “Specifications”)
– Verified balances generally have an internal
calibration weight
Using Verified Balances/Scales as Legal Measuring Instruments in the EU:
Before using your balance as a legal measuring instrument, you must carry out an “Internal Calibration” operation at the place of installation after the warmup period.
1–20
INTERNAL CALIBRATION Quick-CAL Function Using the f Key:
Unload the pan and tare. Once the display indicates a zero readout, press the f key (7). “C” will now be displayed. The built-in calibration weight is internally applied by servomotor and removed at the end of calibration. If external interference affects the calibration procedure, you may obtain a brief display of the error message “Err 02.” In this case, tare the display; then press the f key again once a zero readout is indicated. An acoustic signal indicates the end of calibration.
Internal Calibration Using the Tare Key:
2 sec.
Calibrate the balance using the tare control if an application program (such as “tare memory”) is assigned to the f key by menu code in the balance operating menu (see parts 2 and 4). Press the tare key (10) for at least 2 seconds until “C–I” and “CAL” are displayed (next to the f key).
Unload the pan and tare. Once the display indicates a zero readout, press the f key (7). “C” will now be displayed. The built-in calibration weight is internally applied by servomotor and removed at the end of calibration. If external interference affects the calibration procedure, you may obtain a brief display of the error message “Err 02.” In this case, tare the display; then press the f key again once a zero readout is indicated. An acoustic signal will indicate the end of the calibration process.
!
Important Note:
The weighing pan must be left unloaded when using the internal calibration function.
1–21
EXTERNAL CALIBRATION*
Use only calibration weights with the same or better accuracy than that of the readability of your particular balance.
Unlocking the Access Switch on Verified Balances/ Scales of Accuracy Class k:
– on balances with a capacity less than 12 kg,
remove the protective cap (5) on the front, right-hand side of the unit
– on balances with a capacity greater than12 kg,
remove the large screw (5) located on the left-hand side of the rear panel
– move the switch (5) in the direction of the arrow
2 sec.
Press the tare key (10) for at least 2 seconds untilC– E” or “C– I” (only for balances with an internal calibration weight) and “CAL” are displayed (next to the f key).
Important Note:
If you press the f key (7) while “C–I” is displayed, this will activate the internal calibration function.
For external calibration of balances with an internal calibration weight, press the F key (12).
1–22
C– E” stands for “external calibration.” Unload the balance and tare. Press the f key (7) once a zero readout is indicated. Afterwards, the calibration weight readout will be indicated. If external interference affects the calibration procedure, you may obtain a brief display of the error message “Err 02.” In this case, tare the display; then press the f key again once a zero readout is indicated.
* =
For accuracy class K verified precision balances/scales, this function is allowed to be used only if the balance is not being operated as a legal measuring instrument.
Center the calibration weight on the weighing pan. An acoustic signal will indicate the end of the
calibration process.
Important Note for Accuracy Class K Verified Balances/Scales Approved for Use as Legal Measuring Instruments in the EU:
After verification, the “external calibration” function is blocked by the access switch (5) (adjusted to the left and secured against alteration of the switch setting).
SENSITIVITY TEST (special function for balances with a built-in calibration weight)*
Rather substantial changes in barometric pressure and temperature may affect the display response of these highly accurate balances. To ensure that you obtain the full accuracy of these balances, even when you use the entire weighing range, we have implemented a sensitivity test function. It will help you decide quickly whether or not you need to recalibrate your balance (for example, to maintain the same accuracy during long-term weighing series).
2 sec.
Press the tare key (10) for at least 2 seconds until C– I” and “CAL” are displayed (next to the f key).
Select the sensitivity test by pressing the F key (12) twice.
* = Not on verified LC balances
1–23
Unload the balance and tare.
“C– t” stands for “calibration sensitivity test.” Once the display indicates a zero readout, press the
f key (7). The built-in calibration weight will now be internally applied by servomotor. Then the deviation of the current readout from the target weight (displayed in grams only) will be indicated.
If external interference affects the calibration test, you may obtain a brief display of the error message “Err 02.” In this case, tare the display; then press the f key again once a zero readout is indicated.
Important Note: The balance/scale should be calibrated if the
deviation of the readout from zero is more than the reproducibility specified for standard balances and more than the verification scale interval specified for balances/scales acceptable for verification. For reproducibilities and verification scale intervals, see the “Specifications” that apply to your balance/ scale in Part 6.
1–24
f key: The balance is automatically
calibrated by the built-in weight (see also page 1–21).
or
F key: Quits the sensitivity test An acoustic signal will indicate the end of the
sensitivity test.
Important Note:
For information on the setting for “Quick-CAL sensitivity test using f,”see Part2,“Balance Operating Menu.”

Data Interface

If you wish to record your weighing results using a Sartorius Data Printer, plug the printer connector into the interface port (20) of the balance.You do not need to adjust any settings.
Important Note for Balance/Scale Models Verified for Use as Legal Measuring Instruments:
When using the balance/scale as a legal measuring instrument (legal for trade), you are allowed to connect to it only peripherals authorized by law. However, if you are not using the balance/scale as a legal measuring instrument, you may connect to it any peripherals you wish, e.g., additional displays, personal computer, etc. Such peripherals must be marked to indicate that they are not allowed to be used when the balance/scale is being used as a legal measuring instrument.
Remove the protective cap from the data interface port.
Caution:
Make sure to unplug the AC adapter from the wall outlet before you connect or disconnect any peripherals (printer or PC) to or from the interface port of the balance.
To print data on hard copy or have them output on­screen on an on-line computer, press the p key (11).
For information on special data output parameters, see “Utilities” in Part 2.
For details on the data interface (such as the data output or input formats, pin assignment, etc.) or on interfacing a remote display, see Part 5, “Interface Description.”
1–25
Interfacing Devices with the Balance
Please note that the interface port is electrically connected to the protective grounding conductor of the balance housing. The interface cables supplied as standard equipment are shielded, and both ends of each cable are electrically connected to the connector cases. This connection may result in inter­ference caused by ground loops or by transient currents if you have grounded the housing or connected the protective grounding conductor for line power. If necessary, connect an equipotential bonding conductor to the balance.
1–26
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