OHAUS TROOPER SCALE, Service Manual

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4.2.4.6 How to Quit the Menus ............................................................................ 4-4
4.2.5 Calibration ...................................................................................... 4-4
4.2.6 Legal for Trade (LFT) Operation and LFT Sealing .......................... 4-9
4.2.7 Performance Tests ........................................................................ 4-10
4.2.7.1 Repeatability Test ........................................................... 4-10
4.2.7.2 Off-Center Load Test ....................................................... 4-11
4.2.7.3 Linearity Test ................................................................... 4-11
4.2.8 RS232 Interface Test .................................................................... 4-13
4.2.8.1 Connecting the RS232 Interface ..................................... 4-13
4.2.9 Print Test ...................................................................................... 4-14
4.3 Repair Procedures ............................................................................. 4-15
4.3.1 Replacing the Keypad Membrane ................................................ 4-15
4.3.2 Replacing the PC Board ............................................................... 4-16
4.3.3 Replacing the Spider Assembly (Loadcell) ................................... 4-18
CHAPTER 5 DRAWINGS AND PARTS LISTS
5.1 Drawings and Parts Lists....... .................................................................. 5-1
5.1.1 Trooper Exploded View .................................................................. 5-2
TABLE OF CONTENTS (Cont.)
CHAPTER 4 MAINTENANCE PROCEDURES (Cont.) Page