LW Measurements LDS Large Drum Scale - Manual (Page 19)

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4.1 Display messages and key functions
4.1.1 Display messages:
4.1.2 Key Functions:
1. The ON/OFF key is to turn the Scale On or Off
2. The HOLD key is to store the weight value.
3. The UNIT key is to toggle different weighing units.
4. The ZERO key: Zero feature if load weight below 4%
of full capacity; Tare feature if load weight between
4% to 100% of capacity.
5. The PRINT key is to send data to external device
through RS232 connector.
4.2 Program options
Please see our web-site at
http://lwmeasurements.com for
practical demonstrations of application usage.
Low battery indicator
Negative value indicator
Zero indicator