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APPENDIX A STANDARD CALIBRATION

Ohaus Corporation www.ohaus.com

A-2

Valor

™ 1000W Series Service Manual

2d). Press

ZERO

to accept the setting shown, or

M+

TARE

to move

up or down to match value for specific model

– see table above.

6. Press

ZERO

to display

(x=Checkweigh mode; 0 is off; x=1 is on).

Press

ZERO

to accept

, or

M+

TARE

switch,

then press

ZERO

to accept.

E___3

7. The display will show

Load 0

. Make sure pan is empty,

then press

ZERO

to accept.

CAL 0

appears, then

Load F

Load 0

If span weight is not available, select a lower value: press

Select

, then

TARE

to choose

desired value. Complete process in Step 8.

EndCAL

appears. Scale returns to weighing mode.

Note:

To change

only

the division setting (Step 2 in the calibration routine), press and hold

ZERO

and

SELECT

, then release

SELECT

before

ZERO

. Choose as in Step 2.

Содержание Valor 1000W

Страница 1: ...SERVICE MANUAL Valor 1000W Scales Ohaus Corporation 7 Campus Drive Suite 310 Parsippany NJ 07054 973 377 9000...

Страница 2: ......

Страница 3: ...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...

Страница 4: ......

Страница 5: ...e 3 1 3 1 1 Preventive Maintenance Checklist 3 1 3 2 Service Strategy 3 1 3 3 Opening the Scale 3 1 3 4 Removing Replacing the Main PCB 3 3 3 5 Removing Replacing the Rear Display PCB 3 3 3 6 Removing...

Страница 6: ...lor 1000W V11PW15 Scales Parts 5 7 5 2 Valor 1000W V11PW30 Scales Parts 5 9 LIST OF ILLUSTRATIONS FIGURE NO TITLE 1 1 Valor 1000W Control Panel 1 4 1 2 Strain Gauge Load Cell 1 5 1 3 Downward force on...

Страница 7: ...Testing Contains a list of required test masses an operational test segment display test performance tests and adjustments Chapter 5 Drawings and Parts Lists Contains exploded views of Valor 1000W sc...

Страница 8: ...3 V11PW6 V11PW15 V11PW30 Capacity x Readability Max x d non approved 3 x 0 0005 kg 6 6 x 0 001 lb 6 x 0 001 kg 13 x 0 002 lb 15 kg x 0 002 kg 33 x 0 005 lb 30 kg x 0 005 kg 66 x 0 1 lb Max displayed r...

Страница 9: ...lor 1000W Scales are listed in the tables When a scale has been serviced it must meet the specifications listed in the tables Before servicing the scale determine what specifications are not met 1 6 S...

Страница 10: ...otected against over charging and the scale can remain connected to the AC power line 1 7 HOW LOAD CELLS OPERATE Load Cells are devices that convert force into a signal The Valor 1000W has a Strain Ga...

Страница 11: ...ng the electrical resistance of the circuit At zero load all strain gauges are unstressed Weight placed on the Platform bends the beam causing two gauges to stretch and two to compress in opposition c...

Страница 12: ...is read by the Indicator which converts it to a numeric value and shows it visually This output value increases as weight is loaded to the Load Cell For example a 500kg Load Cell with 2mV V output and...

Страница 13: ...tive section of the balance NOTE If more than one symptom is observed approach one area at a time and remember that the symptoms may be interrelated If a problem arises that is not covered in this man...

Страница 14: ...4 289 10 289 10 289 10 289 10 3 Perform an Output Voltage Test Measure the no load 50 load and full load output The reading should meet the Load Cell specifications The Load Cell output should be very...

Страница 15: ...ected from the PCB These measurements represent the output of the Load Cell Record measurements at Zero Load 50 and full scale capacities See Table 2 3 for typical readings NOTE Table 2 3 indicates ty...

Страница 16: ...should read 12 V AC If voltage is not present replace the input connector If OK proceed Caution disconnect the AC adapter and remove power and or batteries from the balance for this procedure to preve...

Страница 17: ...or is not installed during power on Remove excess weight or install pan and re zero OVEr Total weight on pan exceeds full scale 9d Reduce excess load from the pan n OVEr Accumulation records exceed 99...

Страница 18: ...CHAPTER 2 DIAGNOSTIC GUIDE Ohaus Corporation www ohaus com 2 6 Valor 1000W Series Service Manual...

Страница 19: ...pected 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 scale using a damp cloth with warm water CAUTION DO NOT US...

Страница 20: ...overs Figure 3 2 PCB Housing 3 4 Removing Replacing the Main PCB If the Main PCB is suspected of being faulty they should be replaced as follows 1 Disconnect the Cable connecting the Main PCB to the s...

Страница 21: ...ystem See Figure 3 2 Figure 3 3 Main Printed Circuit Board Note cable for Rear Display PCB 3 5 Removing Replacing the Rear Display PCB 1 Disconnect the Cable connecting the Main PCB to Rear Display PC...

Страница 22: ...olts are tightened to about 50 in lb torque Note There is a shim between the Load Cell Frame and the Load Cell Be careful not to lose it 4 Lift up the bottom housing and remove the two screws securing...

Страница 23: ...ire leads Note Be careful not to short circuit the battery leads 3 Pull the quick connect tabs free of the battery posts and lift out the battery Figure 3 7 Rechargeable battery 4 Position the replace...

Страница 24: ...CHAPTER 3 MAINTENANCE PROCEDURES Ohaus Corporation www ohaus com 3 6 Valor 1000W Series Service Manual...

Страница 25: ...ents of ASTM Class 4 or OIML F2 Tolerance The mass values are listed in Table 4 1 TABLE 4 1 TEST MASS VALUES Model Weight g V11PW3X 500 1000 2000 3000 V11PW6X 1500 3000 4500 6000 V11PW15X 3000 4000 90...

Страница 26: ...fication for each model listed in Table 1 1 1 Power on the balance The reading on the display should be 0g 2 Select a mass weighing near the maximum capacity of the balance and place it on the center...

Страница 27: ...y test set up the instrument as follows Set Up Follow the steps in Appendix A Section A 2 Setup and Calibration Record Settings Zero Tracking Setting ____________ Displayed Units ____________ Mass Use...

Страница 28: ...the Mean average Mean Reading 1 Reading 2 Reading 3 Reading 4 Reading 5 Reading 6 Reading 7 Reading 8 Reading 9 Reading 10 10 Mean ________ 6 Calculate the Delta for each reading and record in the wo...

Страница 29: ...ce the test mass on the Scale record the weight and remove 6 Place Load 3 on the Scale and press ON O T 7 Place the test mass on the Scale and record the weight 8 The difference in the weights of the...

Страница 30: ...ding 4 Move the weight to point B and record the reading 5 Move the weight to point C and record the reading 6 Move the weight to point D and record the reading 7 If the reading at point A is negative...

Страница 31: ...le in the field NOTE In all cases where a part is replaced the scale must be thoroughly checked after the replacement is made The scale MUST meet the parameters of all applicable specifications in thi...

Страница 32: ...CHAPTER 5 PARTS LISTS DIAGRAMS Ohaus Corporation www ohaus com 5 2 Valor 1000W Series Service Manual 5 2 VALOR 1000W V11PW3 SCALES PARTS Figure 5 1 Valor 1000W V11PW3 Scales Parts...

Страница 33: ...ARTS LISTS DRAWINGS Valor 1000W Series Service Manual 5 3 Ohaus Corporation www ohaus com TABLE 5 1 VALOR 1000W V11PW3 SCALES PARTS Note For parts numbers see your local Ohaus distributor or visit www...

Страница 34: ...CHAPTER 5 PARTS LISTS DIAGRAMS Ohaus Corporation www ohaus com 5 4 Valor 1000W Series Service Manual 5 3 VALOR 1000W V11PW6 SCALES PARTS Figure 5 2 Valor 1000W V11PW6 Scales Parts...

Страница 35: ...ARTS LISTS DRAWINGS Valor 1000W Series Service Manual 5 5 Ohaus Corporation www ohaus com TABLE 5 2 VALOR 1000W V11PW6 SCALES PARTS Note For parts numbers see your local Ohaus distributor or visit www...

Страница 36: ...CHAPTER 5 PARTS LISTS DIAGRAMS Ohaus Corporation www ohaus com 5 6 Valor 1000W Series Service Manual 5 4 VALOR 1000W V11PW15 SCALES PARTS Figure 5 3 Valor 1000W V11PW15 Scales Parts...

Страница 37: ...ARTS LISTS DRAWINGS Valor 1000W Series Service Manual 5 7 Ohaus Corporation www ohaus com TABLE 5 3 VALOR 1000W V11PW15 SCALES PARTS Note For parts numbers see your local Ohaus distributor or visit ww...

Страница 38: ...CHAPTER 5 PARTS LISTS DIAGRAMS Ohaus Corporation www ohaus com 5 8 Valor 1000W Series Service Manual 5 5 VALOR 1000W DUAL DISPLAY V11PW30 SCALES PARTS Figure 5 4 Valor 1000W V11PW30 Scales Parts...

Страница 39: ...ARTS LISTS DRAWINGS Valor 1000W Series Service Manual 5 9 Ohaus Corporation www ohaus com TABLE 5 4 VALOR 1000W V11PW30 SCALES PARTS Note For parts numbers see your local Ohaus distributor or visit ww...

Страница 40: ...CHAPTER 5 PARTS LISTS DIAGRAMS Ohaus Corporation www ohaus com 5 10 Valor 1000W Series Service Manual...

Страница 41: ...11PW15 2g x 2 Kg x 3 or g x 03333333 15 000kg or 15000g x 3 3 000 V11PW30 5g x 5 Kg x 3 or g x 0 30 000kg or 30000g x 3 3 000 Note Be sure units are set to kg before starting calibration 1 Turn on the...

Страница 42: ...accept 0 or M or TARE switch then press ZERO to accept E___3 7 The display will show Load 0 Make sure pan is empty then press ZERO to accept CAL 0 appears then Load F Load 0 If span weight is not avai...

Страница 43: ......

Страница 44: ...P N XXXXXXXX SERVICE MANUAL Valor 1000W SERIES SCALES...

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