American Weigh Scales (AWS) AL-311 - Manual (Page 14)

14
AL-Series Manual
5. APPENDIX
5.1. RS232 Serial Data Communication
T8051 MCU (Intel)
1 start bit
1 stop bit
7-bit ASCII (D6-D0)
1 parity (D7)
First setting
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
± Null Weight Display Null Units CR LF
5.2. Care & Maintenance
Please read all operating instructions carefully before use. Scales are precision instruments and should
always be handled with proper care. To ensure years of reliable service, keep these simple tips in mind:
• Do not exceed the scales maximum capacity. Overloading your scale can permanently damage it!
• Avoid exposure to extreme heat or cold. Scales perform best at normal room temperature. If temperatures
have changed dramatically, recalibration may be necessary.
• Allow your scale to warm up for three hours before performing initial calibration.
• Store your scale in a clean, dry location. Dust, dirt, and moisture can accumulate on the weighing sensors
and electronics causing innacuracy or malfunction.
• Avoid static electricity sources, as they can have an adverse effect on the weighing sensors.
• Always weigh on a flat and level surface, free from vibrations and drafts. The corner of a room is usually the
most stable.
• Gently apply all items to be weighed. Do not drop items onto the weighing platform.
• Avoid dropping your scale. The warranty does not cover damage due to rough treatment or overload.
• Keep the weighing pan clean using a soft cloth. Do not use harsh chemicals.
5.3. Troubleshooting
Problem: The self-test failed.
Solution: If the self-test fails, an error code will be displayed. Please contact Technical Support
(1-866-643-3444) and give them the error code.
CPU Broken
Keyboard Error
Storage Lost
A/D converter is not started