Scientech HC Series - Manual (Page 12)

RS-232 Command Set from a Computer:
With the exception of the Alternative Calibration function described on page 7, all balance functions available through the balance’s
front panel are also available through RS-232. The command set is shown below.
Balance Function Computer Keyboard
Entry
ASCII Code Location in Manual
TARE T H54 Page 6
CAL (calibrate) C H43 Page 6
PRINT (send or select) E H45 Page 6
MENU M H4D Page 6
ON/OFF O H4F Page 6
For example, to program the balance, through the computer, to continuously send readings in carats, proceed as follows.
• Press the M key repeatedly until UnitS is displayed on the balance
• Press the E key to select UnitS
• Press the M key repeatedly until CArAt is displayed on the balance
• Press the E key to select CArAt
• Press the M key repeatedly until PC-Prtr is displayed on the balance
• Press the E key to select PC-Prtr
• Press the M key repeatedly until PC is displayed on the balance
• Press the E key to select PC
The balance will now continuously send the weight in carats to the computer.
Troubleshooting Guide:
Note: Many problems such as the balance remaining in the turn on sequence, "weird" characters on the display or
"garbage" on the display are caused by connecting the power supply to the balance incorrectly. The proper
procedure is to connect the round connector on the power supply cable to the balance then plug the power supply into
the wall outlet.
Problem Possible Cause Possible Solution
The display is blank *Balance not turned on
*Power cable not plugged in
*No power from AC outlet *Press ON/OFF switch
*Press ON/OFF switch
*Turn on circuit breaker
*Change AC outlets
┌ -- -- -- -- -- ┐ appears in display *Maximum capacity exceeded
*Reduce container weight
*Weigh sample in smaller increments
└ -- -- -- -- -- ┘appears in display *Pan is not in place
*Balance is out of range *Insure pan is positioned properly
*Press ZERO switch
The display is unstable *Drafts (air currents are present)
*Vibrations are present *Install windscreen, relocate balance
*Isolate balance from vibration, relocate balance
*Select a different filter setting
Weight readings are incorrect *Balance is out of calibration
*Balance is not level
*Display was not zeroed before weight was
placed on pan
*Object being weighed is not fully on
weighing pan and touching the side of
balance or case top
*Unit of weight selection is incorrect *Recalibrate balance
*Level balance
*Press ZERO switch before weighing
*Reposition object
*Select proper weighing mode
Error appears in display *Procedural error *Review procedure in manual and try again
CE Mark:
All Scientech High Capacity Electronic Balances carry the CE Mark.
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