Specifications Relating to Non-automatic Weighing Devices (1998) (SI/98-81)

29 An electronic weighing device, when disturbed by interference such as the effects of electromagnetic or electrostatic fields, short time power reduction, voltage spikes, electrostatic discharges or other disturbances that may be encountered under normal conditions of use, shall

• (a) provide a weight indication or recording that does not differ from the value of the weight indication or recording that would be provided without interference by more than one verification scale interval;

• (b) blank the weight indication and prevent the transmission, printing and storage of weight results;

• (c) provide an error message and prevent the transmission, printing and storage of weight results; or

• (d) provide a weight indication that is so completely unstable that it cannot be interpreted, stored or printed as a correct measurement value.