8545-M838-O1 Rev D 825 Installation & Technical
APPLICATION SOFTWARE USED IN TRADE
1. Must be evaluated and accepted by responsible metrology authority.
In the EU, this is the TSO (Technical Services Official).
In the US and Canada, the metrology inspector responsible for your area.
2. If you have more than one indicator using the same application program, you may have to
obtain a NTEP Certificate of Conformance. Check with your local Weights and Measures
inspector for more information.
3. The application program can not be loaded into the indicator or, once in, can not be
modified as long as the calibration inhibit jumper is installed.
4. Provisions are included for verifying the metrological integrity of the displayed and
transmitted weights from the application program:
A. Displayed Weight
1. With application program running, place a weight on the load-receiving platform.
2. Record the weight value. (Do not remove the weight)
3. Return to the Menu Screen (turn power off then on) and select the standard (STD)
program.
4. When the weight is displayed, verify it is the same as that recorded in step No. 2.
B. Transmitted Weight
1. With application program running, connect a display terminal device (Laptop, PC,
Display, etc.) to COM1.
2. Observe the Gross weight being transmitted by the standard (STD) program from
COM1. (Note that COM1 is under the exclusive control of the standard (STD) program
when the indicator is configured for “Trade” or legal applications).
3. Observe the Gross weight transmitted from a port utilized by the application program
(any port but COM1). This weight must be identical to that observed in step No. 2.
5. When developing application programs for use in Trade, you should check with the
responsible metrology authorities to ensure that your program employs the proper
safeguards.
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