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CHAPTER 1 - GETTING STARTED

Ohaus Corporation www.ohaus.com

Pioneer PJX Series Service Manual

Sensitivity Temperature Drift
(PPM/K)

±6

±3

Platform Size (diameter)

7.1 in / 18 cm

Span Calibration Points (g)

400, 800

750, 1500

1000, 2000

2000, 4000

Linearity Calibration Points (g)

200, 400,

600, 800

500, 1000,

1500

500, 1000,

1500, 2000

1000, 2000,

3000

1000, 2000,

3000, 4000

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)

209 x 321 x 98 mm

8.2 x 12.6 x 3.9 inch

Communication

RS232, MiniDin

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

Model

PJX5202

PJX2201

PJX2201/E

PJX4201

PJX4201/E

PJX6201

PJX6201/E

Capacity (ct)

26000

11000

21000

31000

Readability d (ct)

0.05

0.5

Capacity (g)

5200

2200

4200

6200

Readability d (g)

0.01

0.1

Repeatability (STDEV) (g)

0.01

0.1

Linearity (g)

0.02

0.2

Eccentric Load

Not exceeding the maximum permissible error for the one-third of the full capacity of the

balance

Stabilization Time Typical (s)

Sensitivity Temperature Drift
(PPM/K)

±3

±6

±3

±10

Platform Size (diameter)

7.1 in / 18 cm

Span Calibration Points (g)

2500, 5000

1000, 2000

2000, 4000

3000, 6000

Linearity Calibration Points (g)

2000, 3000,

4000, 5000

500, 1000,

1500, 2000

1000, 2000,

3000, 4000

2000, 4000,

6000

Tare Range

To capacity by subtraction

Power Supply

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

Power output: 12 VDC 0.5A

Communication

RS232, MiniDin

Operating Temperature Range

10°C to 30°C

Содержание Pioneer PJX Series

Страница 1: ...Pioneer PJX Series Balances Service Manual ...

Страница 2: ......

Страница 3: ...ING THE LOAD CELL 16 3 4 REPLACING THE LOAD CELL PCB 18 3 5 REPLACING THE INCAL MECHANISM 19 3 6 REPLACING THE PRINTED CIRCUIT BOARD ASSEMBLIES PCBA 21 3 6 1 Main PCB 21 3 6 2 LFT PCB 22 3 7 Replacing the Function Label 23 3 8 Replacing Display Screen 24 4 TESTING 25 4 1 TEST MASSES REQUIRED 25 4 2 OPERATIONAL TEST 25 4 3 LOAD CELL TEST USING RAMP 25 4 4 PERFORMANCE TESTS 26 4 4 1 Precision Test 2...

Страница 4: ...TABLE OF CONTENTS Pioneer PJX Series Service Manual ii Ohaus Corporation www ohaus com C 3 USB INTERFACE Error Bookmark not defined APPENDIX D FIRMWARE UPGRADE VIA SERVICE TOOL 46 ...

Страница 5: ...E NO TITLE Page No TABLE 1 1 SPECIFICATIONS 3 TABLE 1 2 CONTROL FUNCTIONS 7 TABLE 1 3 USER MENU STRUCTURE 9 TABLE 2 1 DIAGNOSTIC GUIDE 12 TABLE 4 1 CALIBRATION MASS VALUES 25 TABLE 4 2 REPEATABILITY WORKSHEET 27 TABLE 5 1 DRAFTSHIELD MODELS SPARE PARTS 33 TABLE 5 2 BASE SPARE PARTS NON DRAFTSHIELD MODELS 35 ...

Страница 6: ......

Страница 7: ...ns exploded views of Pioneer PJX Series balances identifying all serviceable components Appendix A User Calibrations Explains user calibration procedures that may need to be performed during service Appendix B Service Calibration Describes the Service Menu and sub menus which allow authorized service personnel to see Ramp readings and perform service calibrations Appendix C Software Service Tool I...

Страница 8: ...ervicing the balance determine what specifications are not met Special Note regarding Approved balances The specifications for the approved balances below are only for initial testing These balances must be tested according to the requirements of the local Weights and Measures authority Before returning the balance to service an approved representative of the local Weights and Measures authority m...

Страница 9: ...200 150 300 250 500 Linearity Calibration Points g 10 20 30 40 40 80 120 160 50 100 150 200 100 200 300 200 300 400 500 Tare Range To capacity by subtraction Power Supply Power input 100 240V 200mA 50 60Hz 12 18VA Power output 12 VDC 0 5A Communication RS232 MiniDin Operating Temperature Range 10 C to 30 C Storage Temperature Range Humidity maximum relative humidity 80 for temperatures up to 30 C ...

Страница 10: ...ive humidity at 40 C Storage Conditions 10 C to 60 C humidity 10 to 90 without condensation Model PJX5202 PJX5202 E PJX2201 PJX2201 E PJX4201 PJX4201 E PJX6201 PJX6201 E Capacity ct 26000 11000 21000 31000 Readability d ct 0 05 0 5 0 5 0 5 Capacity g 5200 2200 4200 6200 Readability d g 0 01 0 1 0 1 0 1 Repeatability STDEV g 0 01 0 1 0 1 0 1 Linearity g 0 02 0 2 0 2 0 2 Eccentric Load Not exceeding...

Страница 11: ...1 0 0001 0 001 0 001 Linearity g 0 0002 0 0002 0 0002 0 002 0 002 Eccentric Load Not exceeding the maximum permissible error for the one third of the full capacity of the balance Stabilization Time Typical s 3 3 3 3 3 Sensitivity Temperature Drift PPM K 3 3 3 3 3 Platform Size diameter 3 5 in 9 cm 4 7 in 12 cm Span Calibration Points g 20 40 80 160 100 200 150 300 250 500 Linearity Calibration Poi...

Страница 12: ...Drift PPM K 6 6 6 3 3 3 Platform Size diameter 7 1 in 18 cm Span Calibration Points g 400 800 750 1500 1000 2000 2000 4000 2500 5000 2000 4000 Linearity Calibration Points g 200 400 600 800 500 1000 1500 500 1000 1500 2000 1000 2000 3000 4000 2000 3000 4000 5000 1000 2000 3000 4000 Tare Range To capacity by subtraction Power Supply Power input 100 240V 200mA 50 60Hz 12 18VA Power output 12 VDC 0 5...

Страница 13: ... the balance is Off turns on the balance If balance is On sets zero Print Sends the current displayed value to the serial interface Function Operation is dependent on the application mode Tare Performs tare operation Secondary Function Long Press Off Zeroing current value Unit Changes weighing units Mode Changes application mode Menu Cal Enters the main menu Calibration is the first sub menu Views...

Страница 14: ...the sub menu Aborts a calibration in progress MAIN APPLICATION SCREEN 1 5 2 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 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...

Страница 15: ... Name GLP Date Setting Date and Time Project Name Reset Time Format Balance ID Time Setting Balance Name Brightness User Name Auto Dim Project Name LFT Application Name Result Gross Weight Net Weight Tare Weight Line Feed Note PJX balances are classified into InCal models and ExCal models 1 5 4 Changing Settings To change a menu setting navigate to that setting using the following steps Enter the ...

Страница 16: ...ibration as explained in User manual Section 5 2 4 Set Approved Mode to On in the Balance Setup menu 5 Press the push button inside the hole Note When Approved Mode is set to On external calibration can t be performed 1 6 2 Verification The local weights and measures official or authorized service agent must perform the verification procedure 1 6 3 Sealing After the Balance has been verified it mu...

Страница 17: ... suggested remedies in order Note Allow equipment to warm up for 60 minutes on precision models for optimal weighing performance Allow 4 hours for analytical models to stabilize 2 2 DIAGNOSTIC GUIDE Diagnostic Guide designed to help locate the problem area quickly and easily The probable causes are listed with the most common cause first If the first remedy does not fix the problem proceed to the ...

Страница 18: ...g exceeds overload limit Err 8 4 Weight reading below underload limit Ref Err Reference Weight too small The weight on the pan is too small to define a valid reference weight Add additional samples LowW rEF A warning that the reference weight is below the recommended value for accurate parts counting Add additional samples if possible otherwise counting continues with diminished accuracy Busy tare...

Страница 19: ...urning the balance on for the balance electronics to stabilize Preventive Maintenance Checklist The balance should be inspected and checked regularly as follows 1 Remove the Pan and Sub Pan to inspect and clean the area beneath the Pan 2 Clean the outside of the balance using a damp cloth with warm water 3 Check the Power Cord for broken or damaged insulation 4 Make a visual inspection for faulty ...

Страница 20: ...dle from the side glass Slide the glass away backward 5 Draft shield models Remove front and back panels Unscrew 4 screws on the top frame gently lift frame up a little bit to take out the front and back glass 6 Remove the Pan Pan Support and Wind Ring as required 7 After completing the preliminary steps turn the balance over and remove three screws on the bottom housing and one screw under the sl...

Страница 21: ...tion www ohaus com 8 Lift off the Top Housing slightly Be careful not to pull on the cables 9 Disconnect the LCD cable and backlit cable 10 Lift off the Load Cell cover You now have access to all components of the balance 1 Screw under the sliding tab 3 Screws under the bottom housing ...

Страница 22: ...ial tools and test conditions required to ensure that it is working properly No spare parts are available for the Load Cell Module Disassembly 1 Open the balance see Section 3 2 Verify that there is no mechanical interference pinched wire or bad solder connection that may be causing the load cell to appear defective 2 Remove the Load cell Shield by lifting vertically 3 Disconnect the two Load Cell...

Страница 23: ...o foreign material between the bottom housing surfaces and the Load cell Take special care to route the wires and cables Ensure that the wires or cables are not pinched during re assembly 2 Implement the process of replacing Loadcell via service tool V2 2 0 0 or later Go to Repair Tool PIONEER PX PR Replace Loadcell Types of Pioneer Load Cells 4 place Loong 3 2 place Nova 2 1 place Strain Gauge ...

Страница 24: ...eer PJX 5 place and Strain Gauge load cell due to the technical soldering process Disassembly for Nova Load cell PCB 1 Open the balance see Section 3 2 2 Take out the load cell see Section 3 3 3 Remove three cables and one screw which fix the cable 4 Remove two screws 5 Reverse the disassembly procedure to assemble the Load cell PCB Disassembly for Loong Load cell PCB 1 Open the balance see Sectio...

Страница 25: ... broken or displays an error code Note Pioneer PJX Series Load Cells are not serviceable in the field due the special tools and test conditions required to ensure that it is working properly No spare parts are available for the Load Cell Module Disassembly 1 Open the balance see Section 3 2 2 Take out the load cell see Section 3 3 3 Remove two black plastic caps by pliers then lift out the weights...

Страница 26: ...Series Service Manual Assembly 1 Reversing the step of disassembly 2 Connect the LC to Balance 3 Check the Function via service tool Diagnostics a Check both No Load and Total Load with the correct reading b If failed adjust the position of the InCal Mechanism until get the correct result ...

Страница 27: ...o the sensitive electronic components It is recommended that a conductive mat with wrist straps be used when working with electronic components 3 6 1 Main PCB 1 Open the Base Module see Section 3 2 2 Remove all the cables on the PCB 3 Remove 2 screws to release the Main PCB 4 Reversing for the assembly 5 Implement the process of replacing Main PCB via service tool V2 2 0 0 or later to configure th...

Страница 28: ...s Corporation www ohaus com 22 Pioneer PJX Series Service Manual 3 6 2 LFT PCB 1 Open the Base Module see Section 3 2 2 Disconnect the cables including the ground cable on the PCB 3 Remove 2 screws to release LFT PCB 4 Reversing for the assembly ...

Страница 29: ... the adhesive smears use a cotton cloth to pick up as much as possible As a last resort a solvent such as Nail Polish Remover can be tried First test the plastic on the inside of the Housing to see if the solvent damages the plastic The solvent must not come in contact with the Touch Panel Install the new Function Label Trial fit the new label to become familiar with its placement Remove the clear...

Страница 30: ...s Service Manual 3 8 Replacing Display Screen If the display screen needs to be replaced the Function Label needs to be removed The Function Label cannot be reused Remove the Function Label see above Remove the Display by simply lifting it out Reserving for assembly with the new function label ...

Страница 31: ...ration Points g Weight Class PJX203 M PJX203 E 20 40 10 20 30 40 ASTM Class 1 OIML E2 PJX803 M PJX803 E 80 160 40 80 120 160 ASTM Class 1 OIML E2 PJX1203 M PJX1203 E 100 200 50 100 150 200 ASTM Class 1 OIML E2 PJX1603 M PJX1603 E 150 300 100 200 300 ASTM Class 2 OIML F1 PJX2503 M PJX2503 E 250 500 200 300 400 500 ASTM Class 2 OIML F1 PJX822 M PJX822 E 400 800 200 400 600 800 ASTM Class 3 OIML F2 P...

Страница 32: ... mass The reading should return to 0g 1d 4 Repeat this test three times The readings should be within 1d If so the balance passes the Precision Test If the deviation for any set of readings using the same mass placed on the center of the Pan is greater than 1d the balance does not meet the precision specification Inspect and correct the following areas Check for mechanical obstructions Any foreign...

Страница 33: ... Setting ____________ Auto Zero Tracking Setting ____________ Displayed Units ____________ Mass Used ____________ Test Procedure 1 Zero the instrument 2 Using a test mass approximately half the capacity of the instrument place the mass on the center of platform Record the reading on the worksheet provided 3 Remove the mass from the platform 4 Repeat this test starting at Step 1 until you record a ...

Страница 34: ...ce calibration and try again See Appendix B for Service Calibration Repeatability Test Approved models This test is a variation of the test above Rather than determining acceptance based on the standard deviation of the errors MPE is used The other variation is that 2 series of weighings are used one near 50 of max and the other near 100 of maximum capacity 1 See Table 4 1 to determine the two wei...

Страница 35: ...d the weight and remove 4 Place Load 2 on the Balance and press TARE 5 Place the test mass on the Balance record the weight and remove 6 Place Load 3 on the Balance and press TARE 7 Place the test mass on the Balance and record the weight 8 The difference in the weights of the test mass should be within the tolerance If the differences are out of tolerance twice value of the Maximum Permissible Er...

Страница 36: ...comes on 5 Move the weight to location B and record the reading 6 Move the weight to location C and record the reading 7 Move the weight to location D and record the reading 8 Maximum allowable change in displayed weight readings for each of the four positions must be less than the absolute value of the Maximum Permissible Error MPE for the load 0 5 e If this maximum is exceeded verify the test co...

Страница 37: ...s are separated into separate sections for the Balance with Draftshield and Non draftshield To order spare parts identify the required item in the exploded views and parts list then use the Spare Parts List to obtain the current part number for this item NOTE In all cases where a part is replaced the balance must be thoroughly checked after the replacement is made The balance MUST meet the paramet...

Страница 38: ...CHAPTER 5 PARTS LISTS DIAGRAMS Ohaus Corporation www ohaus com 32 Pioneer PJX Series Service Manual 5 1 DRAFTSHIELD MODELS SPARE PARTS ...

Страница 39: ... kit DS PX 10 30372533 Power cable and RS232 cable PX 11 30372513 Main PCBA PJX 12 30372514 MiniDin PCBA PJX 13 30372506 Feet 4pcs PJX 14 30449067 Load Cell ODLOI0200G4 4C 15 30042879 SP InCal Drive with Cable ME 16 30455160 PCBAC ANA Cell Board Loong NS 30372530 Package kit DS PX NS 30372456 Box DS PX NS 46001724 PWR W IN 5W 12VDC US JP 46001776 NS 46001724 PWR W IN 5W 12VDC EU 46001774 NS 460017...

Страница 40: ...CHAPTER 5 PARTS LISTS DIAGRAMS Ohaus Corporation www ohaus com 34 Pioneer PJX Series Service Manual 5 2 NON DRAFTSHIELD MODELS SPARE PARTS ...

Страница 41: ...and RS232 cable PX 8 30372513 Main PCBA PJX 9 30372514 MiniDin PCBA PJX 10 30372506 Feet 4pcs PJX 11 30452480 Load Cell ODNOI5000G2 4C 12 30042879 SP InCal Drive with Cable ME 13 30455159 PCBAC LoadCell Nova NS 30372532 Package kit nonDS PX NS 83021309 Box Topload EX NS 46001724 PWR W IN 5W 12VDC US JP 46001776 NS 46001724 PWR W IN 5W 12VDC EU 46001774 NS 46001724 PWR W IN 5W 12VDC UK 46001777 NS ...

Страница 42: ...n 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 ma...

Страница 43: ...using the mass closest to the full span value 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 3 To change the calibration mode press No until SpaN span calibration is displayed 4 The Calibration mass value will be shown in the screen After the display shows 200 0000 g place weight s of 200 g on the...

Страница 44: ...Y CALIBRATION Linearity calibration uses three calibration points one at zero load and the others at specified loads With no load on the scale press Linearity Calibration to begin the process The balance captures the zero point and then prompts for the next weight Continue to follow the instructions on the display until the calibration is completed Steps for linearity calibration 1 Long press the ...

Страница 45: ...n in the display After the display shows 100 0000 g place weight s of 100 g on the pan for calibration 5 Remove the weight s of 100 g from the pan After a while 200 0000 g will be displayed on the screen Place weight s of 200 g on the pan 6 Once the linearity calibration is completed successfully CAL done will display 1 2 Press any button to return to the previous screen 7 Remove the weight s and ...

Страница 46: ... D circuit that is of the temperature compensated duty cycle The actual value is not as important as how it changes It should increase as the weight on the balance is increased The ramp display should remain constant without fluctuations The normal range is within 3 to 97 If the readings are outside this range the load cell is likely bad Fluctuations in the display may indicate a mechanical interf...

Страница 47: ...ect linearity calibration Refer to the diagram below for the correct weight sequence 5 Point LINEARITY CALIBRATION A five point linearization is rarely required and is the most difficult to perform accurately under the less than ideal conditions outside the factory This service calibration requires that accurate calibration weights be used Calibration points are done at approximately 0 25 50 75 an...

Страница 48: ...vice Menu is used to determine the balance s internal weight This establishes a ratio between the internal weight and an external calibration weight SERVICE INTERNAL CALIBRATION The internal calibration weight is used to calibrate the balance If a pan pan support or load cell is changed a Service Span Calibration or Service Internal Calibration should be done ...

Страница 49: ...layed weight stable or unstable P Print displayed weight stable or unstable CP Continuous Print SP Print on Stability SLP Set Auto Print to On Stability allow non zero displayed weight be printed SLZP Set Auto Print to On Stability allow both stable non zero weight and stable zero reading printed xP Set Auto Print to Interval Print x print interval 1 3600 sec 0P disable the interval Print 0P 0P di...

Страница 50: ...and LFT ON if LFT is set ON x Set Counting APW x in grams must have APW stored P Print Counting application APW x Set Percent application reference weight x in grams must have reference weight stored P Print Percent application reference weight PTIME Print current time PDATE Print current date xTIME Set Time x format hh mm ss xDATE Set Date x format mm dd yyyy xS 0 print unstable data 1 print stab...

Страница 51: ... 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 selecta...

Страница 52: ...er PJX balance firmware can be upgraded via service tool The whole process takes approximately 4 minutes Please follow below steps to upgrade the firmware STEPS 1 Open the Service tool with the version V2 2 0 0 or later 2 Go to Repair Tool PIONEER PJX PR Download Software COM Port Configuration 3 Select the Mot File and click Next button for upgrading the software ...

Страница 53: ...ENDIX D FIRMWARE UPGRADE VIA SERVICE TOOL Ohaus Corporation www ohaus com 47 Pioneer PJX Series Service Manual 4 Cycle power and wait approximately 4 minutes for the process to finish 5 Restart the balance ...

Страница 54: ......

Страница 55: ...rademark of Ohaus Corporation The information contained in this manual is believed to be accurate at the time of publication but Ohaus Corporation assumes no liability arising from the use or misuse of this material Reproduction of this material is strictly prohibited Material in this manual is subject to change ...

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