OHAUS PX125D Instruction Manual
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Summary of Contents for OHAUS PX125D
- Page 1 P P ioneer PX Series Balances Instruction Manual...
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Page 3: Table Of Contents
PX Series Balance EN-1 Table of Contents 1. INTRODUCTION ........................3 Description ..............................3 Features ............................... 3 Definition of Signal Warnings and Symbols ....................3 Safety Precautions ............................3 2. INSTALLATION ........................4 Unpacking ..............................4 Select the Location ............................4 Leveling ................................ - Page 4 EN-2 PX Series Balance 5.6.1 Stable Only ............................. 33 5.6.2 Numeric Only ............................33 5.6.3 Single Header ............................33 5.6.4 Print To ..............................33 5.6.5 Auto Print ............................... 34 5.6.6 Header ..............................34 5.6.7 Date and Time............................34 5.6.8 Balance ID .............................. 34 5.6.9 Balance Name............................
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Page 5: Introduction
PX Series Balance EN-3 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 Operation Controls: 2-line backlit display, with 6 weighing applications and many other features. -
Page 6: Installation
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 Adventurer balance to avoid incorrect operation. -
Page 7: Connecting Power And Acclimating The Balance
PX Series Balance EN-5 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. -
Page 8: Operation
EN-6 PX Series Balance 3. OPERATION Overview of Display, Home Screen The PX balance has a 2-line backlit display. CONTROLS CONTROL FUNCTIONS Button On / Zero Print Function Tare Primary Function If the Indicator is Off, Sends the current Operation is Performs tare (Short turns on the... -
Page 9: Principal Functions And Main Menu
PX Series Balance EN-7 MAIN APPLICATION SCREEN Net (NET) Result Field: Stability (*) Information varies Negative (-) by application Centre of Zero (>0<) Pre-tare (PT) Unit Instructional Messages Principal Functions and Main Menu Weighing: First press Zero to set the display to zero. Place an object on the pan. The display indicates the gross weight. -
Page 10: Applications
EN-8 PX Series Balance 4. APPLICATIONS The PX balance can be operated in 6 application modes by long pressing the Function / Mode button. 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 1. - Page 11 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.
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Page 12: Percent Weighing
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. -
Page 13: Dynamic Weighing
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 displayed percentage. 7. To view the reference sample weight or the test object weight, press the Function / Mode button. - Page 14 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.
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Page 15: Density Determination
PX Series Balance EN-13 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. - Page 16 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.
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Page 17: Px Series Balance En
PX Series Balance EN-15 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. - Page 18 EN-16 PX Series Balance decimal places. To correct for this, the air buoyancy (0.0012 g per cm volume of the body) is added to the calculated result: Calculated density + 0.0012 g/cm 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.
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Page 19: Measuring The Density Of A Sinking Solid Using Water
PX Series Balance EN-17 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. - Page 20 EN-18 PX Series Balance 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.
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Page 21: Measuring The Density Of A Floating Solid Using Water
PX Series Balance EN-19 4.5.2 Measuring the Density of a floating Solid Using Water 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... -
Page 22: Measuring The Density Of A Liquid Using A Calibrated Sinker
EN-20 PX Series Balance 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. -
Page 23: Measuring The Density Of Porous Material Using Oil
PX Series Balance EN-21 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. - Page 24 EN-22 PX Series Balance Set the following parameters by pressing No or 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.
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Page 25: Additional Features
PX Series Balance EN-23 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. -
Page 26: Menu Settings
EN-24 PX Series Balance 5. MENU SETTINGS 5.1 Menu Navigation TABLE 5-1. USER MENU STRUCTURE Factory Calibration Setup Units RS232 Print Lockout Reset Internal Cal Language Gram Baud Rate Stable Only Header 1 Reset All Calibration InCal Numeric Filter Level Kilogram Transmission Header 2... -
Page 27: Calibration
PX Series Balance EN-25 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 28 EN-26 PX Series Balance Steps for span calibration 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 Span Cal (span calibration) is displayed.
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Page 29: Linearity Calibration
PX Series Balance EN-27 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. -
Page 30: Balance Setup
EN-28 PX Series Balance 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"... -
Page 31: Auto Tare
PX Series Balance EN-29 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. 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. -
Page 32: Approved Mode
EN-30 PX Series Balance 5.3.13 Approved Mode Use this menu to set the Legal for Trade status. Off = standard operation. On = operation complies with Legal Metrology regulations. Note: When Approved Mode is set to On, the menu settings are affected as follows: Calibration Menu: For InCal models, only Internal Calibration is available. -
Page 33: Weighing Units
PX Series Balance EN-31 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. Display Unit Display... - Page 34 EN-32 PX Series Balance 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.
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Page 35: Rs232 Interface Setup
PX Series Balance EN-33 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... -
Page 36: Auto Print
EN-34 PX Series Balance 5.6.5 Auto Print = disabled On Stability = printing occurs each time the stability criteria are met. Print Interval = 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. -
Page 37: Tare
PX Series Balance EN-35 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. 5.7 GLP Enter this menu to set the Good Laboratory Practices (GLP). -
Page 38: Legal For Trade (Lft)
EN-36 PX Series Balance 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. -
Page 39: Printing
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.). -
Page 40: Output Format
EN-38 PX Series Balance Output Format The Result Data, and G/N/T data, is output in the following format. Term. Field: Label Space Weight Space Unit Space Stability Space G/N Space Characters Length: Note: 1. The length of the label field is not fixed. 2. -
Page 41: Printout Examples
PX Series Balance EN-39 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. BASIC WEIGHING PART COUNTING PERCENT WEIGHING Header 1 Header 1 Header 1 Header 2 Header 2... - Page 42 Verified By: ____________ Oil density: 0.8000 g/cm³ Signature: ____________ Dry Weight: 5.00 g Verified By: ____________ Signature: ____________ Verified By: ____________ INTERNAL CALIBRATION SPAN CALIBRATION LINEARITY CALIBRATION -OHAUS- -OHAUS- -OHAUS- 07/26/2017 05:16:53 03/19/2000 04:51:46 01/01/2000 17:30:47 Balance ID: Balance ID:...
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Page 43: Maintenance
Busy (tare, zero, printing, waiting for a stable weight) Wait until completion 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 44: Technical Data
EN-42 PX Series Balance 9. TECHNICAL DATA 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... - Page 45 PX Series Balance EN-43 TABLE 9-1. SPECIFICATIONS InCal Model PX125D PX85 PX225D PX84 PX124 PX224 PX163 ExCal Model PX84/E PX124/E PX224/E PX163/E Capacity (g) 52/120 82/220 0.00001/ 0.00001/ Readability d (g) 0.00001 0.0001 0.0001 0.0001 0.001 0.0001 0.0001 Repeatability 0.00002/ 0.00002/...
- Page 46 EN-44 PX Series Balance TABLE 9-2. SPECIFICATIONS (continued) 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) 1600 2200 Readability d (g) 0.001 0.001 0.001 0.001 0.01 0.01 0.01 Repeatability 0.001 0.001...
- Page 47 PX Series Balance EN-45 TABLE 9-3. SPECIFICATIONS (continued) 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 0.01 0.01 Repeatability 0.01 0.01 0.01...
- Page 48 EN-46 PX Series Balance TABLE 9-4. SPECIFICATIONS (continued) InCal Approval Model PX124M PX224M PX323M PX523M PX3202M PX5202M PX4201M Capacity (g) 3200 5200 4200 Readability d (g) 0.0001 0.0001 0.001 0.001 0.01 0.01 Verification Interval e 0.001 0.001 0.01 0.01 Class Repeatability 0.0001 0.0001...
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Page 49: Drawings And Dimensions
PX Series Balance EN-47 Drawings and Dimensions Fully assembled dimensions Figure 9-1 0.001 g / 0.0001 g / 0.01 mg model Figure 9-2 0.01 g / 0.1 g model 9.3 Accessories TABLE 9-5. ACCESSORIES DESCRIPTION PART NUMBER Auxiliary Display PAD7 80251396 Density Kit 80253384... -
Page 50: Communication
EN-48 PX Series Balance Communication 9.4.1 Interface Commands Commands listed in the following table will be acknowledged by the balance. Command Function Characters 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. -
Page 51: 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. -
Page 52: Usb Connection
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. SOFTWARE UPDATES Ohaus is continuously improving its balance software. To obtain the latest release, please contact your Authorized Ohaus Dealer or Ohaus Corporation. -
Page 53: Compliance
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. -
Page 54: Limited Warranty
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. - Page 56 Ohaus Corporation 7 Campus Drive Suite 310 Parsippany, NJ 07054 USA Tel: +1 973 377 9000 Fax: +1 973 944 7177 With offices worldwide. www.ohaus.com *30372559* P/N 30372559 B © 2018 Ohaus Corporation, all rights reserved.
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