Specifications

54 DC-788 Operation Manual
8.0 Appendix
8.1 DC-788 Specifications
Operating Conditions
• Power Source - AC117/100V
• Operating Temperature- -10°C ~ +40°C (OIML)
• Operating Humidity - 15 ~ 85% RH
• Power Consumption - 18W when using AC power
1W when using rechargeable battery
Charging Conditions (for rechargeable battery only)
• Power Source - AC117/100V
• Charge Current - 800 mA
• Charge Time - 8-10 hours
Analog Specification
• Input Sensitivity - 1mV/V
• Zero Adjust Range - 0 ± 5mV
• Zero Balance Range - 0 ± 0.5mV
• L/C Applied Voltage - DC 5V
• Speed of A/D Conversion - 30 times/second
• Internal Resolution - 1,000,000
External Connectors
• AC Receptacle
• RS-232C Interface
• 14 pin female amphenol for external loadcell
Main Components
• Microcomputer - Hitachi HD64F73687 (56K Flash) / HD64F3684 (32K Flash) /
HD6433687 (56k ROM) / HD6433686 (48K ROM) / HD6433685 (40K
ROM) / HD6433684 (32K ROM) / HD6433683 (23K ROM)
• Crystal Oscillator - 10 MHz
• Display Device - Back-Lit LCD
• Loadcell Sensitivity - 1~3mV/V
8.2 DC-788 Error Message List
The DC-788’s alphanumeric display allows for detailed error messages. Use Table 8-1 below to find the error
message, possible causes for the error and ways to correct the problem. If these suggestions fail to correct the
situation, please contact your DIGI dealer for assistance.
Error Message Possible Causes Corrective Action
O F When the displayed weight exceeded
capacity+9d, or something is on the platter
when the power is on.
Remove the item on the platter.
U F When the displayed minus weight > = 9d. Rezero the scale or power the on/off button again.
Error0 When the communication between the main
board and the A/D board is not complete.
Turn the power off and check the connections.
Error1 When the calibration operation is not correct. Repeat the calibration operation.
Table 8-1. DC-788 Error Message List