OHAUS Catapult 1000 Service Manual Download Page 1

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SERVICE MANUAL
Catapult™ 1000 Scales

99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431

Summary of Contents for Catapult 1000

Page 1: ...SERVICE MANUAL Catapult 1000 Scales 99 Washington Street Melrose MA 02176 Phone 781 665 1400 Toll Free 1 800 517 8431 Visit us at www TestEquipmentDepot com...

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Page 3: ...e 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...

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Page 5: ...ted Circuit Board PCB 2 6 2 5 1 PCB Voltage Measurements 2 6 2 5 2 Simulator Testing 2 6 2 5 3 General Load Test 2 6 2 5 4 Calibration Test 2 7 CHAPTER 3 MAINTENANCE PROCEDURES 3 1 Preventive Maintena...

Page 6: ...s 5 3 LIST OF ILLUSTRATIONS FIGURE NO TITLE 1 1 Catapult 1000 Display 1 3 2 1 Visual Checking Procedures 2 1 2 2 Catapult 1000 PCB connections 2 4 3 1 Scale Bottom 3 2 3 2 Load Cell Junction Board 3 2...

Page 7: ...operational test segment display test performance tests and adjustments Chapter 5 Drawings and Parts Lists Contains exploded views of Catapult 1000 Scales identifying all serviceable components Before...

Page 8: ...20 lb 20 kg 44 lb 75 kg 165 lb Weighing Units Kg lb Application Modes Weighing Dynamic Weighing Linearity 1 d Repeatability std Dev 1 d Off center load cap dist 3 d Operating Temperature range 5o C 41...

Page 9: ...ry condition When first displayed approximately 12 hours of operation remain When the battery is fully depleted the scale momentarily displays Lo bAt and shuts off 1 5 2 OVERVIEW OF THE CONTROLS Batte...

Page 10: ...ON ZERO Off to clear the negative value Overload If the applied load exceeds the scale s capacity an E appears Remove the load and the scale will return to normal operation Auto Shut Off During batter...

Page 11: ...is displayed 4 With the platform empty press ON ZERO Off to capture the scale zero The display will show C 5 After the zero is captured the required span calibration weight value in the selected unit...

Page 12: ...CHAPTER 1 GETTING STARTED...

Page 13: ...screw s holding it to the housing 5 If either PCB is cracked or shows signs of corrosion it requires replacement See Chapter 3 Maintenance Procedures If the Load Cell Junction Board is bad replace th...

Page 14: ...e if desired See Section 1 54 To exit remove the mass from the platform and press UNITS Cal Display 000000 or 999999 or no weight reading Load cell cable is disconnected No calibration data in EEPROM...

Page 15: ...to the PCB and the SIG and SIG wires must be disconnected Record the colors for each wire connection before disconnecting See Table 2 2 for typical color code for SD Series TABLE 2 2 COLOR CODE FOR LO...

Page 16: ...7 6 C11P75 75kg 0 4 2 0 Zero 4 1 Zero 7 8 2 4 2 Resistance Test Perform a Resistance Test to determine if the Load Cell is severely damaged or a short circuit has occurred Note The Load Cell must be c...

Page 17: ...of a Simulator is required The function of a Simulator is to simulate the output of a full bridge Load Cell allowing the scale to be separated from the Load Cell for the purposes of troubleshooting a...

Page 18: ...n 1 8 2 Follow the scale prompts When the scale indicates a given weight to be placed on the scale set the simulator to an equivalent value based on Table 2 3 3 Upon completion of calibration the PCB...

Page 19: ...st The scale should be inspected and checked regularly as follows 1 Unplug the AC Adapter before cleaning 2 Clean the outside using a damp cloth with warm water CAUTION DO NOT USE CHEMICAL CLEANERS OR...

Page 20: ...3 Unsolder the Load Cell Cable s leads from the Load Cell Junction Board See Figure 3 2 4 Remove the two screws that secure each Load Cell using a 3mm Allen key Hold each Load Cell by hand while remo...

Page 21: ...e the two screws holding the PCB Cover and lift it out 3 Unsolder the Load Cell Cable s leads and the Power Cable leads from the PCB See Figure 3 5 4 Lift out the Main PCB Figure 3 5 Power Cable and L...

Page 22: ...Function Label Replacement 1 Unplug the AC Adapter 2 Lift the Function Label off from the Top Housing Remove the old Display Window The Function Label is held in place with a strong adhesive Clean th...

Page 23: ...displays appear normal in this test continue with the next test If the display did not appear check the AC adapter output and repeat the test with a good adapter If the display was erratic the PC boar...

Page 24: ...lity test set up the scale as follows Set Up Enter the menu and set the scale to display the same units as the performance specifications TEST PROCEDURE 1 Zero the scale 2 Using a test mass approximat...

Page 25: ...eading 5 7 Reading 6 Reading 7 Reading 8 Reading 9 Reading 10 10 Mean ________ 6 Calculate the Delta for each reading and record in the work sheet Delta Reading Mean 7 Calculate the Delta x Delta for...

Page 26: ...ass halfway between the center and the edge to the front of the Pan Note any differences in the displayed weight reading 4 Repeat the test for the back left and right position of the Pan 5 Maximum all...

Page 27: ...ve the weight to point C and record the reading 9 Move the weight to point D and record the reading 10 If the reading at point A is negative file at points 1 and 4 AT AN ANGLE 11 If the reading at poi...

Page 28: ...l masses are nominal values Be certain to use the same reference mass throughout the procedure 1 Place the reference mass on the Scale record the weight and remove 2 Place Load 1 on the Scale and pres...

Page 29: ...aced the scale must be thoroughly checked after the replacement is made The scale MUST meet the parameters of all applicable specifications in this manual If further technical information is needed pl...

Page 30: ...CHAPTER 5 PARTS LISTS DIAGRAMS 5 1 CATAPULT 1000 SCALE Parts Catapult 1000 1 2 3 4 5 6 7 6 10 3 9 80b 6 81 82 80a Figure 5 1 Catapult 1000 Scale Parts...

Page 31: ...Description 1 Pan Stainless Steel Optional 2 Pan Plastic 3 Load Cell Set 4 Function Label 5 Main PCB with LCD 6 Hardware Kit 7 PCB Cover 9 Battery Cover 10 Rubber Feet 4 80a Adapter Fixed Plug type 80...

Page 32: ...CHAPTER 5 PARTS LISTS DIAGRAMS...

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Page 34: ...80252209 P N 80252209 SERVICE MANUAL CATAPULT 1000 SCALES Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 TestEquipmentDepot com...