Ohaus PX3202M, PX2201, PX323M, PX423, PX8201 User Manual

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Page 1

Pioneer PX Series Balances

Instruction Manual

Page 2

Page 3

PX Series Balance EN-1

Table of Contents

1. INTRODUCTION .............................................................................................................. EN-3

1.1 Description ............................................................................................................................................. EN-3

1.2 Features ................................................................................................................................................. EN-3

1.3 Definition of Signal Warnings and Symbols ........................................................................................... EN-3

1.4 Safety Precautions ................................................................................................................................. EN-3

2. INSTALLATION ............................................................................................................... EN-4

2.1 Unpacking .............................................................................................................................................. EN-4

2.2 Select the Location ................................................................................................................................ EN-4

2.3 Leveling .................................................................................................................................................. EN-4

2.4 Connecting Power and Acclimating the Balance ................................................................................... EN-5

2.5 Connecting the Interface ........................................................................................................................ EN-5

2.6 Initial Calibration .................................................................................................................................... EN-5

3. OPERATION .................................................................................................................... EN-6

3.1 Overview of Display, Home Screen ....................................................................................................... EN-6

3.2 Principal Functions and Main Menu ....................................................................................................... EN-7

3.3 Overview of Parts and Features – Draft Shield Models ......................................................................... EN-7

3.4 Overview of Parts and Features – Non-Draft Shield Models ................................................................. EN-7

4. APPLICATIONS ............................................................................................................... EN-8

4.1 Weighing ................................................................................................................................................ EN-8

4.2 Parts Counting ....................................................................................................................................... EN-8

4.3 Percent Weighing ................................................................................................................................. EN-10

4.4 Dynamic Weighing ............................................................................................................................... EN-11

4.5 Density Determination .......................................................................................................................... EN-12

4.5.1 Measuring the Density of a Sinking Solid Using Water ................................................................... EN-17

4.5.2 Measuring the Density of a floating Solid Using Water.................................................................... EN-18

4.5.3 Measuring the Density of a Solid Using an Auxiliary Liquid other than Water ................................ EN-18

4.5.4 Measuring the Density of a Liquid Using a Calibrated Sinker ......................................................... EN-19

4.5.5 Measuring the Density of Porous Material Using Oil ....................................................................... EN-21

4.6 Additional Features .............................................................................................................................. EN-23

5. MENU SETTINGS .......................................................................................................... EN-24

5.1 Menu Navigation .................................................................................................................................. EN-24

5.1.1 Changing Settings ............................................................................................................................ EN-24

5.2 Calibration ............................................................................................................................................ EN-24

5.2.1 Calibration Sub-menu (InCal models) .............................................................................................. EN-24

5.2.2 Internal Calibration (not applicable to ExCal models) ...................................................................... EN-25

5.2.3 InCal Adjust (not applicable to ExCal models) ................................................................................. EN-25

5.2.4 Span Calibration............................................................................................................................... EN-25

5.2.5 Linearity Calibration ......................................................................................................................... EN-26

5.3 Balance Setup ...................................................................................................................................... EN-28

5.3.1 Language ......................................................................................................................................... EN-28

5.3.2 Filter Level ........................................................................................................................................ EN-28

5.3.3 AZT (Auto Zero Tracking) ................................................................................................................ EN-28

5.3.4 Auto Tare ......................................................................................................................................... EN-28

5.3.5 Graduations ...................................................................................................................................... EN-29

5.3.6 Date Format ..................................................................................................................................... EN-29

5.3.7 Date Setup ....................................................................................................................................... EN-29

5.3.8 Time Format ..................................................................................................................................... EN-29

5.3.9 Time Setup ....................................................................................................................................... EN-29

5.3.10 Brightness ........................................................................................................................................ EN-29

5.3.11 Auto Dim .......................................................................................................................................... EN-29

5.3.12 Capacity Bar ..................................................................................................................................... EN-29

5.3.13 Approved Mode ................................................................................................................................ EN-30

5.4 Weighing Units ..................................................................................................................................... EN-30

5.5 RS232 Interface Setup ......................................................................................................................... EN-32

5.5.1 Baud Rate ........................................................................................................................................ EN-32

5.5.2 Transmission .................................................................................................................................... EN-32

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EN-2 PX Series Balance

5.5.3 Handshake ....................................................................................................................................... EN-33

5.6 Print Settings ........................................................................................................................................ EN-33

5.6.1 Stable Only ....................................................................................................................................... EN-33

5.6.2 Numeric Only ................................................................................................................................... EN-33

5.6.3 Single Header .................................................................................................................................. EN-33

5.6.4 Print To ............................................................................................................................................. EN-33

5.6.5 Auto Print ......................................................................................................................................... EN-33

5.6.6 Header ............................................................................................................................................. EN-33

5.6.7 Date and Time.................................................................................................................................. EN-33

5.6.8 Balance ID ........................................................................................................................................ EN-34

5.6.9 Balance Name.................................................................................................................................. EN-34

5.6.10 User Name ....................................................................................................................................... EN-34

5.6.11 Project Name ................................................................................................................................... EN-34

5.6.12 Application Name ............................................................................................................................. EN-34

5.6.13 Result ............................................................................................................................................... EN-34

5.6.14 Gross. ............................................................................................................................................... EN-34

5.6.15 Net..... ............................................................................................................................................... EN-34

5.6.16 Tare... ............................................................................................................................................... EN-34

5.6.17 Line Feed ......................................................................................................................................... EN-34

5.7 GLP ...................................................................................................................................................... EN-35

5.7.1 Header ............................................................................................................................................. EN-35

5.7.2 Balance Name.................................................................................................................................. EN-35

5.7.3 User Name ....................................................................................................................................... EN-35

5.7.4 Project Name ................................................................................................................................... EN-35

5.8 Factory Reset ....................................................................................................................................... EN-35

5.9 Lockout................................................................................................................................................. EN-35

6. LEGAL FOR TRADE (LFT) ........................................................................................... EN-36

6.1 Settings ................................................................................................................................................ EN-36

6.2 Verification ........................................................................................................................................... EN-36

6.3 Securing the Menu ............................................................................................................................... EN-36

6.4 Sealing Access to the Balance Settings .............................................................................................. EN-36

7. Printing .......................................................................................................................... EN-37

7.1 Connecting, Configuring and Testing the Printer / Computer Interface ............................................... EN-37

7.2 Output Format ...................................................................................................................................... EN-38

7.3 Printout Examples ................................................................................................................................ EN-38

8. MAINTENANCE ............................................................................................................. EN-40

8.1 Calibration ............................................................................................................................................ EN-40

8.2 Cleaning ............................................................................................................................................... EN-40

8.3 Troubleshooting ................................................................................................................................... EN-40

8.4 Service Information .............................................................................................................................. EN-40

9. TECHNICAL DATA ........................................................................................................ EN-41

9.1 Specifications ....................................................................................................................................... EN-41

9.2 Drawings and Dimensions ................................................................................................................... EN-46

9.3 Accessories .......................................................................................................................................... EN-46

9.4 Communication .................................................................................................................................... EN-47

9.4.1 Interface Commands ........................................................................................................................ EN-47

9.4.2 RS232 (DB9) Pin Connections ........................................................................................................ EN-48

9.4.3 USB Interface ................................................................................................................................... EN-48

9.4.4 USB Connection............................................................................................................................... EN-49

10. SOFTWARE UPDATES ................................................................................................. EN-49

11. COMPLIANCE ............................................................................................................... EN-50

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PX Series Balance EN-3

Operation Controls: 2-line backlit display, with 6

weighing applications and many other features.

WARNING

For a hazardous situation with medium risk, possibly resulting in injuries or death if not avoided.

CAUTION

For a hazardous situation with low risk, resulting in damage to the device or the property or in loss of data, or injuries if not avoided.

Attention

For important information about the product

Note

For useful information about the product

CAUTION: Read all safety warnings before installing, making connections, or servicing this equipment. Failure to comply with these warnings could result in personal injury and/or property damage. Retain all instructions for future reference.

Direct Current

Alternating Current

1. INTRODUCTION

1.1 Description

The PX balance is a precision weighing instrument that will provide you with years of service if properly cared for.

PX balances are available in capacities from 82 grams to 8200 grams.

1.2 Features

1.3 Definition of Signal Warnings and Symbols

Safety notes are marked with signal words and warning symbols. These show safety issues and warnings. Ignoring the safety notes may lead to personal injury, damage to the instrument, malfunctions and false results.

Warning Symbols

General Hazard Electrical Shock Hazard

1.4 Safety Precautions

 Verify that the AC adapter’s input voltage range and plug type are compatible with the local AC main power

supply.

 Make sure that the power cord does not pose a potential obstacle or tripping hazard.  Do not position the balance such that it is difficult to reach the power connection.  The balance is for indoor use only. Do not operate the equipment in hazardous or unstable environments.  Operate the equipment only under ambient conditions specified in these instructions.  Do not drop loads on the pan.  Use the balance only in dry locations.  Disconnect the equipment from the power supply when cleaning.  Use only approved accessories and peripherals.  Service should only be performed by authorized personnel.

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EN-4 PX Series Balance

2. INSTALLATION

2.1 Unpacking

Carefully remove your PX balance and each of its components from the package. The included components vary depending on the balance model (see the list below). Save the packaging to ensure safe storage and transport. Please read the manual completely before installing and using the PX balance to avoid incorrect operation.

Components included:

 Balance  Power adapter + Attaching plug  Stainless steel pan  Pan support (for 0.1 g / 0.01 g model only)  Warrenty card

2.2 Select the Location

Avoid heat sources, rapid temperature changes, air current or excessive vibrations. Allow sufficient space.

2.3 Leveling

Be sure the balance is level before it is used or after its location is changed. The PX balance has a level bubble in a small round window beside the display.

To level the balance, adjust the 4 Leveling Feet until the bubble is centered in the circle.

Please refer to Figure 2-1 for leveling.

Figure 2-1. Leveling

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PX Series Balance EN-5

The PX balance has two data interfaces, RS232 and USB. Use the RS-232 port to connect either to a computer or a printer with a standard (straight-through) serial cable. Use the USB port to connect to a computer with a USB 2.0 Type A to Type B cable.

Interface connections on the rear of the balance

USB：Used to connect to PC only

RS232：Used to connect to PC or Printer

Note: For Connecting, Configuring and Testing the Printer / Computer Interface, see the Printing section.

USB

RS232

2.4 Connecting Power and Acclimating the Balance

Connect the DC output connector to the power receptacle on the rear of the balance. Then connect the AC adapter plug to a suitable electrical outlet.

Acclimating

It is suggested that the balance should not be used until it has been connected to power and acclimated to the environment for a certain period of time. In the case of balance with the precision above 0.1 mg, the acclimation time should be 1.5 hours; in the case of balance with the precision of 0.01 mg, the acclimation time should be more than 4 hours.

2.5 Connecting the Interface

2.6 Initial Calibration

When the PX balance is first installed, or when it is moved to another location, it must be calibrated to ensure accurate weighing results. PX balances are classified into two categories, InCal models and ExCal models. InCal models have a built-in calibration mechanism which can calibrate the balance automatically and does not require the use of external calibration masses. If preferred, InCal models can also be manually calibrated with external masses. ExCal models are calibrated with external masses. Make sure to have the appropriate calibration masses available before beginning calibration.

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EN-6 PX Series Balance

CONTROLS

Button

Primary

Function

(Short Press)

On / Zero

 If the Indicator is

Off, turns on the Indicator.

 If Indicator is On,

sets zero.

 Sends the current

displayed value to the serial interface.

Function

 Operation is

dependent on the application mode.

Tare

 Performs tare

operation.

Secondary

Function

(Press and

Hold)

Off

 Zeroing current

value.

Unit

 Changes weighing

units.

Mode

 Changes

application mode.

Menu-Cal

 Enters the main

menu. Calibration is the first submenu.

 Views the preset

Tare value.

Function

(Short Press)

Yes

 Accepts the current

(blinking) setting on the display.

 Rejects the current

(blinking) setting on the display.

 Increments a value

being entered.

Back

 Reverts back to

previous menu item.

 Decrements a

value being entered.

Exit

 Immediately

exits the submenu.

 Aborts a

calibration in progress.

3. OPERATION

3.1 Overview of Display, Home Screen

The PX balance has a 2-line backlit display.

CONTROL FUNCTIONS

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PX Series Balance EN-7

Weighing:

Press Zero to set the display to zero. Place an object on the pan. The display indicates the gross weight.

Taring:

With no load on the pan, press Zero to set the display to zero. Place an empty container on the pan and press Tare. Add material to the container and its net weight is displayed. After the container and the objects are removed, the load will be displayed as a negative number. Press Tare to clear.

Zero:

Press Zero to zero the balance.

Dot-matrix Display:

The relevant data in the specific application mode are shown in the dot-matrix display area.

Result Field: Information varies by application

Unit

Instructional Messages

Net (NET)

Stability (*)

Negative (-)

Centre of Zero (>0<)

Pre-tare (PT)

Pan

Level Indicator

Adjustable Foot

USB Device

Security Switch RS232

Power Input Pan

Adjustable Foot

USB Device

Security Switch

RS232

Power Input

MAIN APPLICATION SCREEN

3.2 Principal Functions and Main Menu

3.3 Overview of Parts and Features – Draft Shield Models

3.4 Overview of Parts and Features – Non-Draft Shield Models

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EN-8 PX Series Balance

1. Press Tare or Zero if necessary to begin.

2. Press and hold the Function / Mode button to select

Weighing (this application is the default).

3. Place objects on the pan to display the weight. Once the reading is stable, the * will appear.

4. The resulting value is displayed in the active unit of measure.

To view or adjust the current settings.

1. Press Tare or Zero if necessary to begin.

2. Press and hold the Function / Mode button until

Parts Counting appears.

4. APPLICATIONS

The PX balance can be operated in 6 application modes by long pressing the Function / Mode button.

4.1 Weighing

Note: Before using any application, be sure the balance has been leveled and calibrated.

Use this application to determine the weight of objects in the selected unit of measure.

Weighing

Item Settings

• Capacity Bar: When set to On, the capacity bar is displayed in the reference field. The capacity will not display when the balance is set to zero.

• Weighing Units: Change the displayed unit. See Section 5.4 for more information.

• Filter Level: Change Filtering level. See Section 5.3.2 for more information.

• GLP Data: See Section 5.7 for more information.

• Print Settings: Change printing settings. See Section 7 for more information.

4.2 Parts Counting

Note: Before using any application, be sure the balance has been leveled and calibrated. The minimum piece

weight should be no less than 0.1d.

Use this application to count samples of uniform weight.

Parts Counting

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PX Series Balance EN-9

3. After confirmation by pressing Yes, the message "Clear APW?" will appear on the screen.

4. If the APW of the last Parts Counting operation needs to be kept, press No when the message "Clear APW?" displays.

5. Press Yes, and the message "Sample size 10" will display with the numeral "10" (default) flashing.

6. Confirm the sample size by pressing Yes, and place 10 samples on the pan to display the weight. Press No or Back to increase or decrease the value as desired.

7. Press the Function / Mode button so that the weight of the 10 samples is used to establish the average piece weight (APW). The display will show 10 pieces.

8. To view the piece weight or the total weight, press the Function / Mode button.

9. Place additional objects on the pan, and the corresponding number of pieces will display.

Sample: The sample size ranges from 1 to 1000. The default value is 10. Note: To ensure accurate counting, the minimum piece weight should be no less than 0.1d.

Item Settings

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EN-10 PX Series Balance

APW Optimization:

Improving counting accuracy by re-calculating the piece weight automatically as parts are added.

APW Optimization occurs only when the number of pieces added to the pan is between one and three times the number already on the pan.

Print Settings:

Changing printing setup. See Section 7 for more information.

1. Press and hold the Function / Mode button until

Percent Weighing appears.

2. After confirmation by pressing Yes, the message "Clear reference?" will appear on the screen.

3. Press Yes, and then the message "Place sample" will display.

4. Place the reference sample on the pan to display the weight. When the reading is stable, the * will appear.

5. Press the Function / Mode button so that the weight of the reference sample is stored in memory. The display will show 100%.

4.3 Percent Weighing

Note: Before using any application, be sure the balance has been leveled and calibrated.

Use Percent Weighing to display the weight of a test object as a percentage of a pre-established reference sample.

The default (or last) reference weight is displayed.

Percent Weighing

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PX Series Balance EN-11

6. Remove the reference sample and place the test object on the pan. The ratio of the test object to the reference sample weight is displayed as a percentage.

7. To view the reference sample weight or the test object weight, press the Function / Mode button.

1. Press and hold the Function / Mode button until

Dynamic Weighing appears.

2. After confirmation by pressing Yes, the message "Change parameter?" will appear on the screen.

3. Press Yes, and then the message "Average time 10 s" will display with the numeral "10" flashing. Press No or Back to increase or decrease the value as desired.

Note:

If the previously established reference sample weight needs to be kept, press No when the message "Clear reference?" displays.

Printing Setup:

Changing printing setup. See Section 7 for more information.

Item Settings

4.4 Dynamic Weighing

Note: Before using any application, be sure the balance has been leveled and calibrated. Clear the pan before

beginning a new Dynamic Weighing cycle.

Use this application to weigh an unstable load, such as a moving animal.

Dynamic Weighing

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EN-12 PX Series Balance

4. Confirm the weighing time by pressing Yes, and the message "Ready" will display at the lower left of the screen.

5. Place the dynamic object on the pan. The balance begins a countdown (averaging process). During the countdown, the screen shows the time remaining.

6. When the countdown ends, the result line is displayed and held.

7. After the dynamic object is removed, the weight will be automatically set to zero, and the balance will return to the status of "Ready".

Item Settings

1. Averaging Time: Set the averaging time to a value between 1 and 15 seconds. Default is 10 seconds.

2. Printing Setup: Changing printing setup. See Section 7 for more information.

4.5 Density Determination

Note: Before using any application, be sure the balance has been leveled and calibrated.

Use this application to determine an object’s density.

A Density Determination Kit, Part Number 80253384, is designed to be used with PX series balances. Illustrations in this procedure refer to the density kit, however, you may use whatever lab apparatus that will suit the requirements for density measurements. A built in reference density table for water at temperatures between 10ºC and 30.9ºC is included in the balance software. Review this entire section before attempting density measurements.

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PX Series Balance EN-13

1. Glass beaker

2. Bracket

3. Forceps

4. Platforms

5. Holder for floating solids

6. Holder for non floating solids

7. Precision thermometer with holder

8. Sinker 10ml (optional equipment)

When making density measurements, the material should weigh at least 10.0 mg on an analytical balance and 100 mg on a precision balance. Balance Preparation with Ohaus Density Kit (Optional) Allow the balance to warm up sufficiently before making measurements. Open either the left or right side door of the balance and remove the Pan as shown. Insert the Bracket into the balance where the Pan was removed. The Equalizing Washer is not used.

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EN-14 PX Series Balance

Place the Support into position over the bracket making sure the Support does not make contact with the Bracket as shown in illustration.

Install beaker on support as shown. NOTE: Beaker and thermometer are not supplied as part of the density kit.

 The density Q is the quotient of the mass m and the volume V.

Density determinations are performed by using Archimedes’ principle. This principle states that every solid body immersed in a fluid loses weight by an amount equal to that of the fluid it displaces. The density table for water is included in the Discovery balance software.

The density of a solid is determined with the aid of a liquid whose density, Qo, is known (water is used as an auxiliary liquid). The solid is weighed in air (A) and then in the auxiliary liquid (B). The density Q can be calculated from the two weighings as follows:

The balance allows direct determination of the buoyancy P (P =A - B) and consequently the above formula can be simplified:

Q = Density of the solid A = Weight of the solid in air B = Weight of the solid in the auxiliary liquid Q0 = Density of the auxiliary liquid at a given temperature (this value depends on the temperature). The density

table for water is included in Discovery balances. P = Buoyancy of the solid in the auxiliary liquid (corresponds to A-B).

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PX Series Balance EN-15

Place the solid in the Weighing Pan on the Weigh Below Hook in the liquid as shown. Ensure that there are no air bubbles on the solid to be weighed. Close the draft shield doors and weigh the solid (buoyancy P). The display indicates the density in grams/cc.

Solid Density Determinations for items Less Density Than Water

For density determination of solids with a density less than 1 g/CM3, the bottom of the Weigh Below Hook for solids must be used as it holds the solid body below the surface of the auxiliary liquid. If the buoyancy of the solid is greater than the weight of the Weigh Below Hook, the Weigh Below Hook must be weighted by placing an additional mass on the submerged part of the Weigh Below Hook as shown. Weigh the sample in air first as explained in the previous procedure. After loading the additional mass, tare the balance and start the weighing again. Wait until the balance has reached stability and note the displayed weight P (buoyancy of the solid).

Improving the Accuracy of the Result of Solid Density

The following tips should help you improve the accuracy of the results in the density determination of solids.

Temperature

Solids are generally so insensitive to temperature fluctuations that the corresponding density changes are of no consequence. However, as work is performed with an auxiliary liquid in the density determination of solids, their temperature must be taken into account as the temperature has a greater effect with liquids and causes density changes in the order of magnitude 0.5 to 1% per °C. This effect is already apparent in the third decimal place of the result. To obtain accurate results, we recommend that you always take the temperature of the auxiliary liquid into account on all density determinations.

Air Buoyancy

1 CM3 of air weighs approximately 1.2 mg (depending on the physical condition). As a consequence, in the weighing in air, each solid experiences buoyancy of this magnitude (the so-called “air buoyancy”) per cm3 of its volume.

However, the air buoyancy must be taken into account only when a result is required with an accuracy of 3 to 4 decimal places. To correct for this, the air buoyancy (0.0012 g per cm3 volume of the body) is added to the calculated result:

Calculated density + 0.0012 g/cm3 air buoyancy = effective density

Surface tension of the auxiliary liquid

Adhesion of the liquid to the Weigh Below Hook causes an apparent weight increase of up 3 mg. As the Weigh Below Hook is immersed in the auxiliary liquid in both weighings of the solid (in air and in the auxiliary liquid), the influence of the apparent weight increase can be neglected because the balance is tared before every measurement.

To reduce the effect of air bubbles and to ensure the greatest possible accuracy, use a few drops of a wetting agent (not supplied) and add them to the auxiliary liquid.

Liquid Density Determinations

The density of a liquid can be made using a sinker of known volume. The sinker (P/N: 83034024) is weighed in air and then in the liquid whose density is to be determined, The density, Q, can be determined from the two weighings as follows:

Q = Density of the liquid A = Weight of the sinker in air B = Weight of the sinker in liquid V = Volume of the sinker P = Buoyancy of the sinker in the liquid (P = A-B)

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EN-16 PX Series Balance

In DENSITY SETUP, set Mode to Liquid Density and enter sinker volume in cc’s. After weighing the sinker in air and then weighing the sinker immersed in liquid, the balance calculates the density of the liquid and is displayed in grams/cc. See illustrations below for placement of the sinker. When the sinker is immersed in the liquid, it must not come into contact with the bottom of the beaker.

Porous Material Density Determinations

The density of a porous (oil impregnated part) can be made with the balance. Weigh the part (dry) prior to oil impregnation and record its weight. You must also know the density value of the oil to be used in immersing the part before starting. In this procedure, you will follow the method for solid density measurements using water. Enter the dry weight of the porous material and the density of oil used to impregnate the part.

To Determine Wet Density

Wet density of the sample can be calculated by following the normal Solid Density procedure using the oil impregnated part. Before density measurements can be made, the density mode of operation must be set up in the Menu, Mode Submenu. It is in the Mode Sub-menu where solid, porous, water or auxiliary liquids are selected. After the basic parameters have been set, the balance density operation is further determined in the APPL DENSITY menu. This menu allows the setting of Density, Temperature, Dry Weight of Porous Material, Sinker Volume and Density of Oil.

Operation Method

Press and hold the Function / Mode button until the Density appears on the screen.

After confirmation by pressing Yes, the message "Change parameter?" will display on the screen. The settings can be kept or changed as desired.

Item Settings:

 Sample Type: Solid, Liquid  Auxiliary Liquid: Water, Alcohol, Other  Porous Material: Off, On  Water Temperature: 20℃ (by default)  Alcohol Temperature: 20℃ (by default)  Volume (of Calibrated Sinker): 10 ml (by default)  Weight (of Porous Material): 5.000 g  Oil Density: 0.80000 g / cm3

Four types of density determination can be made:

1. Solid more density than the auxiliary liquid

2. Solid less density than the auxiliary liquid

3. Liquid density

4. Porous material (impregnated with oil)

The following are the operating procedures for determining density of solid, liquid and porous material with water as the auxiliary liquid. Other auxiliary liquids are also applicable for density determination.

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PX Series Balance EN-17

Press and hold the Function / Mode button until Density appears. Press Yes to initiate the Density Determination.

Item Settings:

 Sample type: Solid

 Auxiliary Liquid: Water

 Porous Material: Off

 Water Temperature: Measure the actual water

temperature using a precision thermometer.

The water temperature is 20.0℃ by default.

Press No or Back to increase or decrease the value of temperature. The balance calculates water density based on the water temperature value entered.

1. Weigh the sample in air using the balance and the density determination kit.

When the * (symbol of stability) appears, press the Function / Mode button to confirm the weight of the sample in the air.

2. Weigh the sample submerged in the liquid using the balance and the density determination kit.

Note: Lower the sample down into the liquid until it is fully submerged.

4.5.1 Measuring the Density of a Sinking Solid Using Water

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EN-18 PX Series Balance

3. Press the Function / Mode button to get the density of the sample. After completion of the test, press the Function / Mode button to test a new sample.

1. Press and hold the Function / Mode button until Density

appears. Press Yes to enter the Density Determination.

2. In determining density with the balance, the balance

setup and density determination procedures are basically the same for a floating solid and a non-floating solid except for the necessary holder (as shown in the figure) to be used for density determination.

3. After completion of the test, press the Function / Mode

button to test a new sample. Note: Lower the sample down into the liquid until it is fully submerged.

Holder for non-floating

solids

Holder for floating

solids

1. Press and hold the Function / Mode button until Density

appears. Press Yes to enter the Density Determination.

4.5.2 Measuring the Density of a floating Solid Using Water

4.5.3 Measuring the Density of a Solid Using an Auxiliary Liquid other than Water

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PX Series Balance EN-19

Item Settings:

 Sample type: Solid

 Auxiliary Liquid: Other

 Porous Material: Off

Set the density of the auxiliary liquid:

2. The default value of the auxiliary liquid is 1.00000 g/cm3.

3. Press No or Back to increase or decrease the value in

accordance with the actual density of the auxiliary liquid.

4. See Section 4.5.1 and Section 4.5.2 for the specific

procedures for density determination.

5. Press the Function / Mode button to display the density of

the sample.

6. After completion of the test, press the Function / Mode

button to test a new sample.

Press and hold the Function / Mode button until Density appears. Press Yes to enter the Density Determination.

4.5.4 Measuring the Density of a Liquid Using a Calibrated Sinker

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EN-20 PX Series Balance

Item Settings:

Sample Type: Liquid Volume: The calibrated sinker has a default volume of 10.0 ml, which can be increased or decreased by pressing No or Back.

After setting the volume, press Yes to begin the weighing.

Note: when the Density Type is set to Liquid, the Liquid type and Porous material selections are disabled.

1. Weigh the calibrated sinker in the air with the balance and

the density determination kit.

When the * (symbol of stability) appears, press the

Function / Mode

button to confirm the weight of the

calibrated sinker in the air.

2. Weigh the calibrated sinker submerged in the liquid with

the balance and the density determination kit. Lower the calibrated sinker down into the liquid until it is fully submerged (1 cm below the surface of the liquid).

3. When the * (symbol of stability) appears, press the

Function / Mode

button to confirm the weight of the

calibrated sinker. The density of the liquid is displayed.

4. After completion of the test, press the

Function / Mode

button to test a new sample.

Page 23

PX Series Balance EN-21

Press and hold the Function / Mode button until Density appears. Press Yes to enter the Density Determination.

Item Settings:

 Sample type: Solid

 Auxiliary Liquid: Water

 Porous Material: On

Set the following parameters by pressing

Back



Water Temperature



Weight



Oil Density Measure the actual water temperature using a precision thermometer. The balance calculates water density based on the water temperature value entered.

Note: The weight of the sample and the density of oil must be measured in advance.

1. Weigh the oiled sample in the air with the balance and the

density determination kit.

2. When the * (symbol of stability) appears, press the

Function / Mode

button to confirm the weight of the oiled

sample in the air.

4.5.5 Measuring the Density of Porous Material Using Oil

Page 24

EN-22 PX Series Balance

3. Weigh the oiled sample in the liquid with the balance and

the density determination kit.

4. When the * (symbol of stability) appears, press the

Function / Mode

button to confirm the weight of the oiled

sample in the liquid. The density of the sample is displayed.

5. After completion of the test, press the

Function / Mode

button to test a new sample.

Page 25

PX Series Balance EN-23

Weigh Below protective cover

Weigh Below hook

4.6 Additional Features

Weigh Below Note: Ensure the balance has been leveled and calibrated.

The PX balance is equipped with a weigh below hook for weighing below the balance (as shown in the figure below).

Before turning the balance over, remove the pan and draft shield elements (if present) to prevent damage. Do not place the balance on the pan support cone or load cell pins. To use this feature, remove power from the balance, then remove the protective cover for the weigh below opening. Power on the balance, and then use a string or wire to attach items to be weighed.

Page 26

EN-24 PX Series Balance

Calibration

Setup

Units

RS232

GLP

Factory

Reset

Lockout

Internal Cal

Language

Gram

Baud Rate

Stable Only

Header 1

Reset All

Calibration

InCal Adjust

Filter Level

Kilogram

Transmission

Numeric Only

Header 2

Setup

Span Cal

AZT

Milligram

Handshake

Single Header

Header 3

Units

Linearity Cal

Auto Tare

Carat

Print To

Header 4

RS232

Graduations

Newton

Auto Print

Header 5

Date format

Pound

Header

Balance

Name

GLP

Date

Ounce

Date and

Time

User

Name

Factory

Reset

Time Format

Ounce Troy

Balance ID

Project

Name

Time

Grain

Balance

Name

Brightness

Pennyweight

User Name

Auto Dim

Momme

Project Name

Capacity Bar

Mesghal

Application

Name

Approved

Mode

Hong Kong

Tael

Result

Singapore Tael

Gross

Tanwan Tael

Net

Tical

Tare

Tola

Line Feed

5. MENU SETTINGS

5.1 Menu Navigation

TABLE 5-1. USER MENU STRUCTURE

Note: PX balances are classified into InCal models and ExCal models.

5.1.1 Changing Settings

To change a menu setting, navigate to that setting using the following steps:

Enter the Menu Long press the Menu button to enter the Menu.

Select the Sub-Menu Press No to step between the sub-menus, and press Yes to enter the sub-menu.

Select the Menu Item Press No to step through the Menu Items, and press Yes to enter the displayed Menu Item.

5.2 Calibration

PX balances offer a choice of three calibration methods: Internal Calibration (for InCal models only), Span calibration and Linearity Calibration.

Attention: Do not disturb the balance during any calibration.

5.2.1 Calibration Sub-menu (InCal models)

Note: ExCal models only have Span Calibration and Linearity Calibration.

Page 27

PX Series Balance EN-25

1. Press and hold the Tare / Menu-Cal button, and the Calibration Menu will display.

5.2.2 Internal Calibration (not applicable to ExCal models)

Calibration is accomplished with the internal calibration mass. Internal Calibration can be performed at any time, provided the balance has warmed up to operating temperature and is level. With the Balance turned ON and no load on the pan, the internal calibration can be performed.

Alternatively, press the Tare / Menu-Cal button and select Internal Cal to initiate the internal calibration.

The screen shows the status, and then returns to the current application after calibration.

5.2.3 InCal Adjust (not applicable to ExCal models)

Use this calibration method to fine tune the effect of the Internal Calibration. Calibration Adjust may be used to adjust the result of the Internal Calibration by +100 divisions.

Note: Before making a calibration adjustment, perform an Internal Calibration. To verify whether an adjustment is needed, place a test mass equal to the span calibration value on the pan and note the difference (in divisions) between the nominal mass value and the actual balance reading. If the difference is within +/- division, calibration adjustment is not required. If the difference exceeds +/-1 division, calibration adjustment is recommended.

Example:

Expected weight reading: 200.000 (Test mass value) Actual weight reading: 200.014 Difference in gram: – 0.014 Difference in division: – 14 (InCal Adjust value)

To perform a Calibration Adjustment, select InCal Adjustment from the list of Calibration Menu; enter the value (positive or negative divisions) to match the difference noted earlier in the procedure. Recalibrate using Internal Calibration. After calibration, place the test mass on the pan and verify that the mass value now matches the displayed value. If not, repeat the procedure until Internal Calibration reading agrees with the test mass. Once completed, the balance stores the Adjustment value and the display returns to the current application.

5.2.4 Span Calibration

Span calibration uses two calibration points, one at zero load and the other at specified full load (span). For detailed calibration mass information, please see the specification tables in section 9.1. With the balance turned ON and no load on the pan, Span Calibration can be performed. The best accuracy is achieved using the mass closest to the full span value.

Steps for span calibration

Page 28

EN-26 PX Series Balance

2. Press Yes to enter the Calibration Menu. To change the calibration mode, press No until Span Cal (span calibration) is displayed.

3. Press Yes to begin the span calibration.

4. The calibration masses value will be shown in the screen. After the display shows "Place weights" and "100.000 g", place weight(s) of 100 g on the pan for calibration. To change to the calibration point of half full capacity (e.g. 50 g), press the Function / Mode button. After the screen shows "Place weights" and "50.000 g", place weight(s) of 50 g on the pan for calibration.

5. Remove the weight from the pan.

6. Once the span calibration is completed successfully, "Calibration done" will display. Press any button to return to the previous screen.

5.2.5 Linearity Calibration

Linearity calibration uses three calibration points, one at zero load and the others at specified loads.

For detailed calibration mass information, please see the specification tables in section 9.1. With no load on the scale, Linearity Calibration can be performed. The balance captures the zero point, and then prompts for the next weight.

Page 29

PX Series Balance EN-27

1. Press and hold the Tare / Menu-Cal button, and the Calibration Menu will display.

2. Press Yes to enter the Calibration Menu. To change the calibration mode, press No until Linearity Cal (linearity calibration) is displayed.

3. Press Yes to begin the linearity calibration.

4. Calibration masses value will be shown in the screen. After the display shows "Place weights" and "50.0000 g", place weight(s) of 50 g on the pan for calibration.

5. Remove the weight(s) of 50 g from the pan. After a while, "100.0000 g" will be displayed on the screen. Please place weight(s) of 100 g on the pan for calibration.

Continue to follow the instructions on the display until the calibration is completed.

Steps for linearity calibration

Page 30

EN-28 PX Series Balance

6. Once the linearity calibration is completed successfully, "Linearity done" will display. Press any button to return to the previous screen.

Set the language displayed for menus and displayed messages.

English Chinese Japanese Korean

5.3 Balance Setup

Enter this sub-menu to customize balance functionality.

Note: The factory default settings are shown below in bold.

5.3.1 Language

5.3.2 Filter Level

Set the amount of signal filtering.

Low = faster stabilization time with less stability. Medium = normal stabilization time with normal stability. High = slower stabilization time with more stability.

5.3.3 AZT (Auto Zero Tracking)

Set the automatic zero tracking functionality.

Off = disabled.

0.5 d = display maintains zero up to a drift of 0.5 graduation per second. 1 d = display maintains zero up to a drift of 1 graduation per second.

3 d = display maintains zero up to a drift of 3 graduations per second.

5.3.4 Auto Tare

Set the automatic tare.

Off = disabled. On = enabled.

Note: "Place container" will be displayed when Automatic Tare is set to On.

Page 31

PX Series Balance EN-29

5.3.5 Graduations

Set the displayed readability of the balance.

1 Division = standard readability.

10 Divisions = readability is increased by a factor of 10. For example, if the standard readability is 0.01g, selecting 10 Divisions will result in a displayed reading of 0.1 g.

5.3.6 Date Format

Set the current date format.

YYYY/MM/DD

MM/DD/YYYY

DD/MM/YYYY

5.3.7 Date Setup

Set the date in the current date format. For example, if the date format is MM/DD/YYYY, the date could be set as "06/22/2017 Thu".

5.3.8 Time Format

Set the current time format.

24HR

12HR

5.3.9 Time Setup

Set the time in the current time format.

For example, if the time format is 24HR, the time could be set as 08:00:00.

5.3.10 Brightness

Set the brightness of the display.

Low Medium High

5.3.11 Auto Dim

Set whether the balance automatically turns off the display backlight of the display.

Off = disabled

10 minutes = become dim if there is no motion for 10 minutes 20 minutes = become dim if there is no motion for 20 minutes 30 minutes = become dim if there is no motion for 30 minutes

5.3.12 Capacity Bar

Off = disabled

On = enabled When the capacity is set On, a capacity bar will display at the bottom of the screen. The capacity bar will roughly show the current weight as a percentage of balance capacity. When the display is at zero, the capacity bar will not display.

Page 32

EN-30 PX Series Balance

Display

Unit

Display

Unit

Gram

dwt

Pennyweight

Kilogram

Momme

Ton

msg

Mesghal

Milligram

tl H

HK tael

Microgram

tl S

SG tael

Carat

tl T

TW tael

Newton

tcl

Tical

Pound

tola

Tola

Ounce

baht

Baht

ozt

Troy ounce

lboz

lb:oz

Grain

5.3.13 Approved Mode

Use this menu to set the Legal for Trade status.

Off = standard operation.

Note: When Approved Mode is set to On, the menu settings are affected as follows:

Calibration Menu:

Balance Setup Menu:

Communication Menu (Communication->Print Settings->Print Output):

Communication Menu (Communication->Print Settings->Auto Print):

Lockout Menu:

Note: The security switch located at the rear of the balance must be in the locked position to set Approved Mode to On. The security switch must be in the unlocked position to set Approved Mode to Off. See Section 6.

On = operation complies with Legal Metrology regulations.

 For InCal models, only Internal Calibration is available. All other functions are hidden.

 Filter Level is locked at the current setting.  Auto Zero Tracking is limited to 0.5 Division and Off. The selected setting is locked.  Auto Tare is locked at current setting.  Graduations are forced to 1 Division and the menu item is hidden.

 Stable Weight Only is locked On.  Numeric Value Only is locked Off.

 Auto print mode selections are limited to Off, On Stability, and Interval. Continuous is not available.

 Menu is hidden

5.4 Weighing Units

Enter this sub-menu to activate the desired units of measure.

PX balances provide a choice of 21 units, which are all set On by default.

Note: Due to national laws, the balance may not include some of the units of measure listed.

Page 33

PX Series Balance EN-31

1. Press and hold the Print / Unit button until the Unit Menu is

displayed.

2. The default unit is gram (g). To change the unit, press No to advance to the next unit.

3. Press Yes to set the unit displayed to the weighing unit.

Changing Weighing Units

Defining Custom Unit

Set Custom to On in the Unit menu to enable and define the Custom Unit. The Custom Unit is defined by entering three parameters, Factor, Exponent and LSD (least significant digit). Define the Custom Unit as follows:

1. Determine how many custom units there are in 1 gram.

2. Convert the value to scientific notation, e.g. m x 10n.

3. Enter the value of m as the Factor setting.

4. Enter the value of n as the Exponent setting.

5. Enter the amount that the Custom Unit steps by as the LSD setting.

Enter the Factor and the Exponent and LSD.

Page 34

EN-32 PX Series Balance

LSD

Result

1 5 10 …

Display counts by 1 Display counts by 5 Display counts by 10 …

Custom Unit = Conversion Factor x Grams. The LSD is the value by which the displayed weight is incremented or decremented.

Note: The conversion factor is used by the balance to convert grams to the custom weighing unit and is defined by entering a factor and an exponent. The factor is a value between 0.1000000 and 1.999999 inclusive. For example: One cup of chemical = 0.5643834×1 g, the factor should be set 0.5643834.

The exponent moves the decimal point of the factor to the right for positive values or to the left for negative values. For example: One cup of chemical = 10 g, the exponent should be set 2.

The LSD is the value by which weight is incremented or decremented.

For example, if the displayed digital is 0.56 for one cup of chemical, the LSD should be set 100.

5.5 RS232 Interface Setup

Enter this sub-menu to customize RS232 standard settings. Data may be output to either a printer or a PC.

5.5.1 Baud Rate

Set the baud rate (bits per second).

1200 = 1200 bps 2400 = 2400 bps 4800 = 4800 bps 9600 = 9600 bps 19200 = 19200 bps 38400 = 38400 bps

5.5.2 Transmission

Set the data bits, stop bit, and parity.

8-NO-1 = 8 data bits, no parity, stop bit 1 8-NO-2 = 8 data bits, no parity, stop bit 2 7-EVEN-1 = 7 data bits, even parity, stop bit 1 7-EVEN-2 = 7 data bits, even parity, stop bit 2 7-NO-1 = 7 data bits, no parity, stop bit 1

Page 35

PX Series Balance EN-33

7-NO-2 = 7 data bits, no parity, stop bit 2 7-ODD-1 = 7 data bits, odd parity, stop bit 1 7-ODD-2 = 7 data bits, odd parity, stop bit 2

5.5.3 Handshake

Set the flow control method.

None = no handshaking Xon-Xoff = XON/XOFF handshaking Hardware = hardware handshaking

5.6 Print Settings

Enter this sub-menu to customize data transfer settings.

5.6.1 Stable Only

Off = values are printed immediately, regardless of stability.

5.6.2 Numeric Only

On = values are printed only when the stability criteria are met.

Off = All selected results are printed. On = Only numeric data values are printed.

5.6.3 Single Header

Off = Headers will be printed for every print requirement.

On = Headers will be printed once a day.

5.6.4 Print To

PC = print data to a PC

Printer = print data to a printer

5.6.5 Auto Print

Off = disabled

On Stability1 = printing occurs each time the stability criteria are met. Print Interval2 = printing occurs at the defined time interval. Continuous = printing occurs continuously.

When On Stability is selected, set the conditions for printing.

Load = Prints when the displayed load is stable. Load and Zero = Prints when the displayed load and zero readings are stable.

When Print Interval is selected, set the time interval using the numeric keypad.

Settings of 1 to 3600 seconds are available. Default is 0.

5.6.6 Header

On = the header is printed.

Off = the header is not printed.

5.6.7 Date and Time

On = the date and the time are printed.

Off = neither the date nor the time is printed.

Page 36

EN-34 PX Series Balance

5.6.8 Balance ID

On = the balance ID is printed.

Off = the balance ID is not printed.

5.6.9 Balance Name

On = the balance name is printed.

Off = the balance name is not printed.

5.6.10 User Name

On = the user name is printed.

Off = the user name is not printed.

5.6.11 Project Name

On = the project name is printed.

Off = the project name is not printed.

5.6.12 Application Name

On = the application name is printed.

Off = the application name is not printed.

5.6.13 Result

On = the weighing result is printed.

Off = the weighing result is not printed.

5.6.14 Gross

On = the gross weight is printed.

Off = the gross weight is not printed.

5.6.15 Net

On = the net weight is printed.

Off = the net weight is not printed.

5.6.16 Tare

On = the tare weight is printed.

Off = the tare weight is not printed.

5.6.17 Line Feed

1 Line = move the paper up one line after printing.

4 Lines = move the paper up four lines after printing.

Page 37

PX Series Balance EN-35

5.7 GLP

Enter this menu to set the Good Laboratory Practices (GLP).

5.7.1 Header

Enables the printing of GLP headings. There are up to 5 headings available. Alphanumeric settings up to 25 characters are available for each Header setting

5.7.2 Balance Name

Set the balance name. Alphanumeric settings up to 16 characters are available.

5.7.3 User Name

Set the user name. Alphanumeric settings up to 16 characters are available. The default is blank.

5.7.4 Project Name

Set the project name. Alphanumeric settings up to 16 characters are available. The default is blank.

5.8 Factory Reset

Use this sub-menu to reset the all menu settings to their Factory default settings.

Reset All = resets all menus to their factory default settings. Exit = return to application main screen without resetting any menus.

5.9 Lockout

Use this sub-menu to lock/unlock certain menus.

Off = the menu is unlocked On = the menu is locked

Page 38

EN-36 PX Series Balance

Un-locked

Locked with Paper Seal

Locked with Wire Seal

6. LEGAL FOR TRADE (LFT)

When the balance is used in trade or a legally controlled application it must be set up, verified and sealed in accordance with local weights and measures regulations. It is the responsibility of the purchaser to ensure that all pertinent legal requirements are met.

6.1 Settings

Before the verification and sealing perform the following steps:

1. Verify the menu settings meet the local weights and measures regulations.

2. Perform a calibration as explained in Section 5.

3. Set the position of the security switch as shown in Section 6.3.

Note: When the security switch is set on the following menu settings cannot be changed: calibration, setup, mode, unit and lockout. For more details, see Section 5.3.13.

6.2 Verification

The local weights and measures official or authorized service agent must perform the verification procedure.

6.3 Securing the Menu

A slide switch is used to secure the Lock menu settings. When the switch is set to the On position, the Lock menu settings may be viewed but not changed. This switch is located behind the Base.

Set the position of the switch to ON by sliding the external Lock Switch to LOCKED as shown in the figure below.

Note: This switch is also used in conjunction with the Legal for Trade menu item. When the Legal for Trade menu is set to ON, the switch must be set to the On position to prevent calibration and changes to metrologically significant settings.

6.4 Sealing Access to the Balance Settings

The local weights and measures official or authorized service agent must apply a security seal to prevent tampering with the settings. Refer to the illustrations below for the sealing methods.

Page 39

PX Series Balance EN-37

Use the built-in RS-232 Port to connect either to a computer or a printer.

If connecting to a computer, use HyperTerminal or similar software like SPDC described below. (Find HyperTerminal under Accessories/Communications in Windows XP.)

Connect to the computer with a standard (straight-through) serial cable.

Choose New Connection, “connect using” COM1 (or available COM port).

Select Baud=9600; Parity=8 None; Stop=1; Handshaking=None. Click OK.

Choose Properties/Settings, then ASCII Setup. Check boxes as illustrated: (Send line ends…; Echo typed characters…; Wrap lines…)

Use RS232 Interface Commands (Section 9.6.1) to control the balance from a PC.

SPDC Software

The Serial Port Data Collection / SPDC software is provided by Ohaus and can be used on operating systems that do not have the HyperTerminal software mentioned above. SPDC software can preliminarily collect and transfer the data to Microsoft files (such as Excel, Word, etc.).

Choose the export file type and export file path and then press Run as shown below.

Note: The latest SPDC software support English and Chinese language and can be downloaded from the Ohaus'

website. For more information, refer to the SPDC Data Collection Instruction Manual.

7. Printing

7.1 Connecting, Configuring and Testing the Printer / Computer Interface

Page 40

EN-38 PX Series Balance

Field:

Label 1

Space 2

Weight 3

Space2

Unit 4

Space

Stability 5

Space

G/N 6

Space

Term. Characters 7

Length:

1 11 1 5

 1

 3 0  8

BASIC WEIGHING

PART COUNTING

PERCENT WEIGHING

Header 1 Header 2 Header 3 Header 4 Header 5 07/19/2017 17:56:23 Balance ID: B234567890 Balance Name: PX5202 User Name: Project Name: Weighing

49.98 g Gross: 49.98 g G Net: 49.98 g N Tare: 0.00 g T

Signature: ____________ Verified By: ____________

Header 1 Header 2 Header 3 Header 4 Header 5 07/19/2017 17:57:19 Balance ID: B234567890 Balance Name: PX5202 User Name: Project Name: Parts Counting Quantity: 4999 PCS Gross: 49.99 g G Net: 49.99 g N Tare: 0.00 g T APW: 0.010 g Sample Size: 10 PCS

Signature: ____________ Verified By: ____________

Header 1 Header 2 Header 3 Header 4 Header 5 07/19/2017 17:57:19 Balance ID: B234567890 Balance Name: PX223/E User Name: Project Name: Percent Weighing Percentage: 10.156 % N Gross: 23.361 g G Net: 10.156 g N Tare: 13.205 g T Reference weight: 100.000 g

Signature: ____________ Verified By: ____________

7.2 Output Format

The Result Data, and G/N/T data, is output in the following format.

Note:

1. The length of the label field is not fixed.

2. Each field is followed by a single delimiting space (ASCII 32).

3. The Weight field is 11 right justified characters. If the value is negative, the '–' character is located at the immediate left of the most significant digit.

4. The Unit field contains the unit of measure abbreviation up to 5 characters, right justified.

5. The Stability field contains the “?” character if the weight reading is not stable. The Stability field and the

following Space field are omitted if the weight reading is stable.

6. The G/N field contains the net or gross indication. For net weights, the field contains “N”. For gross

weights, the field contains “G”.

7. The Termination Characters field contains CRLF, Four CRLF or Form Feed (ASCII 12), depending on

the LINE FEED menu setting.

8. When Numeric Only is set On, only the Weight Field is printed, left-aligned.

7.3 Printout Examples

Examples for each Application are shown with all items turned ON in the Print menu. The default values for Header lines 1-5 are also shown.

Page 41

PX Series Balance EN-39

DYNAMIC WEIGHING

DENSITY

(Density Type=Solid, auxiliary

liquid=water,porous material=on)

DENSITY

(Density Type=liquid, sinker

volume=10ml)

-OHAUS03/19/2000 04:51:46 Balance ID: Balance Name: PX2202ZH/E User Name: Project Name:

---Span Calibration--Calibration is done. Reference weight: 2000.00 g Actual weight: 2000.22 g Difference weight: 0.22 g Weight ID: ____________

Signature: ____________ Verified By: ____________

-OHAUS01/01/2000 17:30:47 Balance ID: Balance Name: PX5202M User Name: Project Name:

---Linearity Calibration--Calibration is done.

Signature: ____________ Verified By: ____________

-OHAUS07/26/2017 05:16:53 Balance ID: Balance Name: PX2202 User Name: Project Name:

---Internal Calibration--Calibration is done. Difference weight: 0.00 g

Signature: ____________ Verified By: ____________

Header 1 Header 2 Header 3 Header 4 Header 5 07/19/2017 18:00:12 Balance ID: B234567890 Balance Name: PX5202 User Name: Project Name: Dynamic Weighing Final weight: 49.99 g Gross: 50.06 g G Net: 50.06 g N Tare: 0.00 g T Averaging Time: 10 s

Signature: ____________ Verified By: ____________

Header 1 Header 2 Header 3 Header 4 Header 5 07/19/2017 18:03:23 Balance ID: B234567890 Balance Name: PX5202 User Name: Project Name: Density Density: 0.0345 g/cm³ Gross: 49.99 g G Net: 49.99 g N Tare: 0.00 g T Oiled Weight: 199.89 g Weight in liquid: 49.98 g Auxiliary liquid: Water liquid density: 0.9982 g/cm³ Temp.: 20.0 ℃ Porous: On Oil density: 0.8000 g/cm³ Dry Weight: 5.00 g

Signature: ____________ Verified By: ____________

Header 1 Header 2 Header 3 Header 4 Header 5 07/19/2017 18:05:17 Balance ID: B234567890 Balance Name: PX5202 User Name: Project Name: Density Density: 14.9820 g/cm³ Gross: 49.98 g G Net: 49.98 g N Tare: 0.00 g T Weight in air: 199.88 g Weight in liquid: 50.05 g Sinker Volume: 10.0 ml

Signature: ____________ Verified By: ____________

INTERNAL CALIBRATION SPAN CALIBRATION LINEARITY CALIBRATION

Page 42

EN-40 PX Series Balance

WARNING: Disconnect the balance from the power supply before cleaning.

Make sure that no liquid enters the interior of the balance.

Symptom / Display

Possible Cause

Remedy

Balance will not turn on

No power to the balance

Verify connection and voltage

Poor accuracy

Improper calibration Unstable environment

Perform calibration Move balance to suitable location

Cannot calibrate

Calibration Menu locked Approved Mode set to on Unstable environment

Incorrect calibration masses

Turn Calibration menu lock off

Turn Approved Mode off Move balance to suitable

location Use correct calibration masses

Cannot change menu settings

Sub-menu locked

Approved Mode set to on

Unlock sub-menu Turn Approved Mode off

Low Reference weight

Reference weight too small The weight on the pan is too small to define a valid

reference weight.

Increase sample size Invalid Piece Weight

Average piece weight is too small

Increase average piece weight

Operation Timeout

Weight reading is not stable

Move balance to suitable location

Err 8.3

Weight reading exceeds overload limit.

Remove weight from the pan

Err 8.4

Weight reading below underload limit.

Re-install the pan

------

Busy (tare, zero, printing, waiting for a stable weight)

Wait until completion

8. MAINTENANCE

8.1 Calibration

Periodically verify calibration by placing an accurate weight on the balance and viewing the result. If calibration is required, refer to section 5.2 for instructions.

8.2 Cleaning

Clean the balance at regular intervals.

Housing surfaces may be cleaned with a lint-free cloth slightly dampened with water or a mild cleaning agent.

Glass surfaces may be cleaned with a commercial glass cleaner.

Attention: Do not use solvents, harsh chemicals, ammonia or abrasive cleaning agents.

8.3 Troubleshooting

TABLE 8-1. TROUBLESHOOTING

8.4 Service Information

If the troubleshooting section does not resolve your problem, contact an Authorized Ohaus Service Agent. Please visit our website www.ohaus.com to locate the Ohaus office nearest you.

Page 43

PX Series Balance EN-41

9. TECHNICAL DATA

9.1 Specifications

Ambient conditions  Indoor use only

Altitude: Up to 2000 m



Specified Temperature range: 10°C to 30°C



Humidity: maximum relative humidity 80% for temperatures up to 30°C, decreasing linearly to 50% relative



humidity at 40°C

Operability is assured at ambient temperatures between 5°C and 40°C

  Mains supply voltage fluctuations: up to ±10% of the nominal voltage  Installation category II

Pollution degree: 2



Supply voltage: 12V⎓0.5A



Materials

Bottom Housing: Die-cast Aluminum, Painted



Top Housing: Plastic (HIPS)



Weighing Platforms: Stainless steel



Draft Shield: Glass, plastic (HIPS)



Feet: Plastic (ABS)



Page 44

EN-42 PX Series Balance

InCal Model

PX85

PX125D

PX225D

PX84

PX124

PX224

PX163

ExCal Model

PX84/E

PX124/E

PX224/E

PX163/E

Capacity (g)

52/120

82/220

120

220

160

Readability d (g)

0.00001

0.00001/

0.0001

0.00001/

0.0001

0.001

Repeatability (STDEV) (g)

0.00002

0.00002/

0.0001

0.00002/

0.0001

0.001

Linearity (g)

±0.0001

±0.0002

±0.002

Stabilization Time Typical (s)

4 4 4

Sensitivity Temperature Drift (PPM/K)

±0.8

±3

±8

Typical Minimum Weight USP (USP K=2,U=0.10%)

20 mg

200 mg

2 g

Optimized Min-Weight (g) (USP, u=0.10%, k=2) SRP≤0.41d*

9 mg

82 mg

0.82 g

Units

Milligram, Gram, Kilogram, Ounce, Pound, Carat, Pennyweight, Ounce Troy, Grain,

Newton, Hong Kong Tael, Singapore Tael, Taiwan Tael, Momme, Tical (MM),

Mesghal, Tola (India), 1 Custom unit

Applications

Basic Weighing, Parts Counting, Percent Weighing, Dynamic Weighing, Density

Determination

Platform Size (diameter, mm)

120

Span Calibration Points (g)

40, 80

50, 100

100, 200

40, 80

50, 100

100, 200

80, 160

Linearity Calibration Points (g)

20, 40,

60, 80

50, 75,

100

50, 100,

150, 200

20, 40,

60, 80

50, 75,

100

50, 100,

150, 200

40,

80,120,16

Tare Range

To capacity by subtraction

Power Supply

Power input: 100-240V ~ 200mA 50-60Hz 12-18VA

Power output: 12 VDC 0.5A

Assembled Dimensions (W x D x H) (mm)

209 x 321 x 309

Communication

RS232, USB

Operating Temperature Range

15°C to 25°C

10°C to 30°C

Storage Temperature Range

Humidity: maximum relative humidity 80 % for temperatures up to 30°C,

decreasing linearly to 50% relative humidity at 40°C

Storage Conditions

-10°C to 60°C, humidity 10% to 90%, without condensation

Net Weight

10 lb / 4.5 kg

Shipping Weight

15.4 lb / 7 kg

Shipping Dimensions (W x D x H) (mm)

507 x 387 x 531

TABLE 9-1. SPECIFICATIONS

Note:

*SRP refers to the standard deviation for n replicate weighings (n≥10).

Page 45

PX Series Balance EN-43

InCal Model

PX223

PX323

PX423

PX523

PX822

PX1602

PX2202

ExCal Model

PX223/E

PX323/E

PX423/E

PX523/E

PX822/E

PX1602/E

PX2202/E

Capacity (g)

220

320

420

520

820

1600

2200

Readability d (g)

0.001

0.01

Repeatability (STDEV) (g)

0.001

0.01

Linearity (g)

±0.002

±0.02

Stabilization Time Typical (s)

2 2 2 2 1 1 1

Sensitivity Temperature Drift (PPM/K)

±9

±3

±6

Typical Minimum Weight USP (USP K=2,U=0.10%)

2 g

20 g

Optimized Min-Weight (g) (USP, u=0.10%, k=2) SRP≤0.41d*

0.82 g

8.2 g

Units

Milligram, Gram, Kilogram, Ounce, Pound, Carat, Pennyweight, Ounce Troy, Grain,

Newton, Hong Kong Tael, Singapore Tael, Taiwan Tael, Momme, Tical(MM), Mesghal,

Tola(India), 1 Custom unit

Applications

Basic Weighing, Parts Counting, Percent Weighing, Dynamic Weighing, Density

Determination

Platform Size (diameter, mm)

120

180

Span Calibration Points (g)

100, 200

150, 300

200, 400

250, 500

400, 800

750, 1500

1000,

2000

Linearity Calibration Points (g)

50, 100,

150, 200

100, 200,

300

100, 200,

300, 400

200, 300,

400, 500

200, 400,

600, 800

500, 1000,

1500

500, 1000,

1500,

2000

Tare Range

To capacity by subtraction

Power Supply

Power input: 100-240V ~ 200mA 50-60Hz 12-18VA

Power output: 12 VDC 0.5A

Assembled Dimensions (W x D x H) (mm)

209 x 321 x 309

209 x 321 x 98

Communication

RS232, USB

Operating Temperature Range

10°C to 30°C

Storage Temperature Range

Humidity: maximum relative humidity 80% for temperatures up to 30°C,

decreasing linearly to 50% relative humidity at 40°C

Storage Conditions

-10°C to 60°C, humidity 10% to 90%, without condensation

Net Weight

10 lb / 4.5 kg

7.7 lb / 3.5 kg

Shipping Weight

15.4 lb / 7 kg

11 lb / 5 kg

Shipping Dimensions (W x D x H) (mm)

507 x 387 x 531

550 x 385 x 291

TABLE 9-2. SPECIFICATIONS (continued)

Note: *SRP refers to the standard deviation for n replicate weighings (n≥10).

Page 46

EN-44 PX Series Balance

InCal Model

PX3202

PX4202

PX5202

PX2201

PX4201

ExCal Model

PX3202/E

PX4202/E

PX5202/E

PX2201/E

PX4201/E

PX6201/E

PX8201/E

Capacity (g)

3200

4200

5200

2200

4200

6200

8200

Readability d (g)

0.01

0.1

Repeatability (STDEV) (g)

0.01

0.1

Linearity (g)

±0.02

±0.2

Stabilization Time Typical (s)

1 1 1 1 1 1 1

Sensitivity Temperature Drift (PPM/K)

±3

±10

Typical Minimum Weight USP (USP K=2,U=0.10%)

20 g

200 g

Optimized MinWeight (g) (USP, u=0.10%, k=2) SRP≤0.41d*

8.2 g

82 g

Units

Milligram, Gram, Kilogram, Ounce, Pound, Carat, Pennyweight, Ounce Troy, Grain,

Newton, Hong Kong Tael, Singapore Tael, Taiwan Tael, Momme, Tical (MM), Mesghal,

Tola (India), 1 Custom unit

Applications

Basic Weighing, Parts Counting, Percent Weighing, Dynamic Weighing, Density

Determination

Platform Size (diameter, mm)

180

Span Calibration Points (g)

1500, 3000

2000, 4000

2500, 5000

1000, 2000

2000, 4000

3000, 6000

4000, 8000

Linearity Calibration Points (g)

1000, 2000,

3000

1000, 2000,

3000, 4000

2000, 3000,

4000, 5000

500, 1000,

1500, 2000

1000, 2000,

3000, 4000

2000, 4000,

6000

2000, 4000,

6000, 8000

Tare Range

To capacity by subtraction

Power Supply

Power input: 100-240V ~ 200mA 50-60Hz 12-18VA

Power output: 12 VDC 0.5A

Assembled Dimensions (W x D x H) (mm)

209 x 321 x 98

Communication

RS232, USB

Operating Temperature Range

10°C to 30°C

Storage Temperature Range

Humidity: maximum relative humidity 80 % for temperatures up to 30°C,

decreasing linearly to 50% relative humidity at 40°C

Storage Conditions

-10°C to 60°C, humidity 10% to 90%, without condensation

Net Weight

7.7 lb / 3.5 kg

Shipping Weight

11 lb / 5 kg

Shipping Dimensions (W x D x H) (mm)

550 x 385 x 291

TABLE 9-3. SPECIFICATIONS (continued)

Note:

*SRP refers to the standard deviation for n replicate weighings (n≥10).

Page 47

PX Series Balance EN-45

InCal Approval Model

PX125DM

PX124M

PX224M

PX323M

PX523M

PX3202M

PX5202M

PX4201M

PX225DM

PX85M

Capacity (g)

52/120

120

220

320

520

3200

5200

4200

82/220

Readability d (g)

0.00001/

0.0001

0.001

0.01

0.1

0.00001

Verification Interval e (g)

0.001

0.01

0.1

0.001

Class

I I I

II I I

Repeatability (STDEV) (g)

0.00002/

0.0001

0.001

0.01

0.1

0.00002/

0.0001

0.00002

Linearity (g)

±0.0001

±0.0002

±0.002

±0.02

±0.2

±0.0001

Stabilization Time Typical (s)

10 4 4 2 2 1 1 1 10

Sensitivity temperature drift (PPM/K)

±0.8

±3

±10

±0.8

Typical Minimum Weight USP (USP K=2,U=0.10%)

20 mg

200 mg

2 g

20 g

200 g 20 mg

20 mg

Optimized Min-Weight (g) (USP, u=0.10%, k=2) SRP ≤ 0.41d*

9 mg

82 mg

0.82 g

8.2 g

82 g

9 mg

Units

g, mg , ct

g, kg , ct

Applications

Basic Weighing, Parts Counting, Percent Weighing, Dynamic Weighing, Density Determination

Platform Size (diameter, mm)

120

180

Span Calibration Points (g)

50, 100

100, 200

150, 300

250, 500

1500,

3000

2500,

5000

2000,

4000

100, 200

40, 80

Linearity Calibration Points (g)

50, 75, 100

50, 75,

100

50, 100,

150, 200

100, 200,

300

200, 300,

400, 500

1000, 2000,

3000

2000, 3000, 4000,

5000

1000, 2000, 3000,

4000

50. 100, 150, 200

20, 40,

60, 80

Tare Range

To capacity by subtraction

Power Supply

Power input: 100-240V ~ 200mA 50-60Hz 12-18VA

Power output：12 VDC 0.5A

Assembled Dimensions (W x D x H) (mm)

209 x 321 x 309

209 x 321 x 98

Communication

RS232, USB

Operating Temperature Range

15°C to

25°C

10°C to 30°C

15°C to 25°C

Storage Temperature Range

Humidity: maximum relative humidity 80% for temperatures up to 30°C, decreasing linearly to 50% relative humidity at 40°C

Storage Conditions

-10°C to 60°C, humidity 10% to 90%, without condensation

Net Weight

10 lb / 4.5 kg

7.7 lb / 3.5 kg

Shipping Weight

15.4 lb / 7 kg

11 lb / 5 kg

Shipping Dimensions (W x D x H) (mm)

507 x 387 x 531

550 x 385 x 291

TABLE 9-4. SPECIFICATIONS (continued)

Note:

*SRP refers to the standard deviation for n replicate weighings (n≥10).

Page 48

EN-46 PX Series Balance

DESCRIPTION

PART NUMBER

Auxiliary Display PAD7

80251396

Density Kit

80253384

Calibrated Sinker for Liquid Density Determination

83034024

USB Interface Cable

83021085

Security Device

80850043

RS232 Cable（25 pin）

80500524

RS232 Cable（9 pin）

80500525

Dust Cover

30093334

In-use Cover

30372546

Printer SF40A

30064202 (EU); 30064203 (AM)

Power Adapter for Balance

46001724

9.2 Drawings and Dimensions

Fully assembled dimensions

9.3 Accessories

Figure 9-1 0.001 g / 0.0001 g model

Figure 9-2 0.01 g / 0.1 g model

TABLE 9-5. ACCESSORIES

Page 49

PX Series Balance EN-47

Command Characters

Function

Immediate Print of displayed weight (stable or unstable).

Print displayed weight (stable or unstable).

Continuous Print.

Print on Stability.

Enter Print Header Lines

Same as pressing Zero Key

Same as pressing Tare Key.

xT***

Establish a preset Tare value in displayed unit. X = preset tare value. Sending 0T clears tare (if allowed).

Prints Tare weight stored in memory.

Brings out of Standby

OFF

Goes to Standby.

Begin Span Calibration

Begin Internal Calibration, same as trigger from calibration menu.

Abort Calibration. Attention: when LFT ON, the operation is not allowed.

PSN

Print Serial Number.

Print terminal software version, base software version and LFT ON (if LFT is set ON).

Set Counting APW (x) in grams. (must have APW stored)

Print Counting application APW.

Set Percent application reference weight (x) in grams. (must have reference weight stored)

Print Percent application reference weight.

xRL

0 = disable response; 1 = enable response. This command only controls the “OK!” response.

Pre-tare the container weight (x) in grams.

9.4 Communication

9.4.1 Interface Commands

Commands listed in the following table will be acknowledged by the balance.

Page 50

EN-48 PX Series Balance

Diagram

Type

Description

Interface type

Voltage interface conforming to EIA RS-232C/DIN 66020 (CCITT V24/V.28)

Max. cable length

15 m

Signal level

Output:

+5 V ... +15 V (RL = 3 – 7kΩ)

-5 V ... -15 V (RL = 3 - 7 kΩ) Input: +3 V ... +25 V

-3 V ... -25 V

Connector

Sub-D, 9-pole, female

Operating mode

Full duplex

Transmission mode

Bit-serial, asynchronous

Transmission code

ASCII

Baud rates

1200, 2400, 4800, 9600, 19200, 38400

(firmware selectable)

Bits/parity

7-bit/even, 7-bit/odd, 7-bit/none, 8-bit/none (firmware selectable)

Stop bits

Stop bit 1, 2

Handshake

None, XON/XOFF, RTS/CTS (selectable)

End-of-line

Not selectable

9.4.2 RS232 (DB9) Pin Connections

9.4.3 USB Interface

The Ohaus USB Interface is a unique solution to the problem of connecting a balance to a computer using a Universal Serial Bus (USB). USB devices are categorized into classes such as disk drives, digital cameras, printers, etc. Balances do not have a commonly used class so the Ohaus USB interface uses a generic interface based on the RS232 serial standard.

Data sent from the balance to a computer is in USB format. The USB data is directed to a virtual port. This port

then appears as an RS232 port to the application program.

When sending a command from a computer to the balance, the application program sends a command to the

virtual port as if it were an RS232 port. The computer then directs the command from the virtual port to the

computers USB connector where the balance is connected. The port receives the USB signal and reacts to the command.

System Requirements

 PC running Windows 98®, Windows 98SE®, Windows ME®, Windows 2000®, Windows XP®, Windows 7® or

Windows 8® (32-bit) or Windows 10®.

 Available USB port (Type A, 4-pin, female)

Page 51

PX Series Balance EN-49

1. The New Hardware Wizard guides you through the required steps to select the driver that is located on the website.

2. After clicking Finish, the virtual port should be ready for use. Windows® typically adds the virtual port in sequence after the highest number COM port. For example, on PC’s equipped with up to 4 COM ports, the virtual port will be COM5.

When using the USB interface with programs that limit the number of COM port designations (e.g. Ohaus MassTracker allows only COM1, 2, 3, & 4), it may be necessary to assign one of these port numbers to the new virtual port.

Example of Windows XP Hardware Wizard

9.4.4 USB Connection

The balance’s USB port terminates with a 4-pin, female, USB Type B connector. A USB Cable (type B/male to type A/male) is required (not supplied).

1. Ensure that the balance is powered on and working properly.

2. Power on the computer and verify that its USB port is enabled and working properly.

3. Plug the cable’s USB connectors into the computer’s USB port and the balance’s USB port. Windows® should detect a USB device and the New Hardware Wizard will be initialized.

Download from Ohaus' Website

This can be done in the Port Settings of the Device Manager utility, found in the Windows Control Panel.

USB INPUT

The balance will respond to various commands sent via the interface adapter. Terminate the following commands when with a [CR] or [CRLF]

PX Commands P same as pressing Print SP print stable weight only IP immediate print of displayed weight (stable or unstable) CP Continuous print of weights T same as pressing Tare Z same as pressing Zero PV print software version xT establish a preset Tare value in displayed unit. X = preset tare value.

Sending 0T clears tare (if allowed).

Auto-Print Operation

Once Auto-Print is activated in the menu, the balance will send data as required. If there is data in the print buffer the printer will finish printing this data.

10. SOFTWARE UPDATES

Ohaus is continuously improving its balance software. To obtain the latest release, please contact your Authorized Ohaus Dealer or Ohaus Corporation.

Page 52

EN-50 PX Series Balance

Mark

Standard

This product complies with the EU Directives 2014/30/EU (EMC), 2014/35/EU (LVD) and 2014/31/EU (NAWI). The EU Declaration of Conformity is available online at www.ohaus.com/ce.

EN 61326-1, AS/NZS 61010-1

CAN/CSA-C22.2 No. 61010-1 UL Std. No. 61010-1

This product complies with the EU Directive 2012/19/EU (WEEE). Please dispose of this product in accordance with local regulations at the collecting point specified for electrical and electronic equipment.

For disposal instructions in Europe, refer to www.ohaus.com/weee.

11. COMPLIANCE

Compliance to the following standards is indicated by the corresponding mark on the product.

Important notice for verified weighing instruments in the EU

When the instrument is used in trade or a legally controlled application it must be set up, verified and sealed in accordance with local weights and measures regulations. It is the responsibility of the purchaser to ensure that all pertinent legal requirements are met.

Weighing Instruments verified at the place of manufacture bear the following supplementary metrology marking on the descriptive plate.

Weighing Instruments to be verified in two stages have no supplementary metrology marking on the descriptive plate. The second stage of conformity assessment must be carried out by the applicable weights and measures authorities.

If national regulations limit the validity period of the verification, the user of the weighing instrument must strictly observe the re-verification period and inform the weights and measures authorities.

As verification requirements vary by jurisdiction, the purchaser should contact their local weights and measures office if they are not familiar with the requirements.

FCC Note

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

Industry Canada Note

This Class A digital apparatus complies with Canadian ICES-003.

ISO 9001 Registration

In 1994, OHAUS Corporation, USA, was awarded a certificate of registration to ISO 9001 by Bureau Veritas Quality International (BVQI), confirming that the OHAUS quality management system is compliant with the ISO 9001 standard’s requirements. On June 21, 2012, OHAUS Corporation, USA, was re-registered to the ISO 9001:2008 standard.

Page 53

PX Series Balance EN-51

LIMITED WARRANTY

Ohaus products are warranted against defects in materials and workmanship from the date of delivery through the duration of the warranty period. During the warranty period Ohaus will repair, or, at its option, replace any component(s) that proves to be defective at no charge, provided that the product is returned, freight prepaid, to Ohaus.

This warranty does not apply if the product has been damaged by accident or misuse, exposed to radioactive or corrosive materials, has foreign material penetrating to the inside of the product, or as a result of service or modification by other than Ohaus. In lieu of a properly returned warranty registration card, the warranty period shall begin on the date of shipment to the authorized dealer. No other express or implied warranty is given by Ohaus Corporation. Ohaus Corporation shall not be liable for any consequential damages.

As warranty legislation differs from state to state and country to country, please contact Ohaus or your local Ohaus dealer for further details.

Page 54

Ohaus Corporation 7 Campus Drive Suite 310 Parsippany, NJ 07054 USA Tel: +1 973 377 9000 Fax: +1 973 944 7177

With offices worldwide / Con oficinas en todo el mundo / Avec des bureaux partout dans le monde / Mit Büros weltweit / Con uffici in tutto il mondo www.ohaus.com

*30372560*