Nova-Tech AE402 Indicator User Manual

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P a g e

• Press the [Pcs/

] key to return to normal weighing. Press the [Pcs/ ]

key again to start counting a different sample.

6.5

CHECK-WEIGHING

Check-weighing is a procedure to cause lamps to come on (and if enabled, an alarm
to sound) when the weight on the scale meets or exceeds values stored in memory.
The memory holds the last values for a high and a low limit when the power is
turned off. The user can set either one limit or both as described below.

See Section 7.1 for the procedure to set the limits. The limits can be set when the
scale is in weighing or parts counting modes. After limits have been set the Check-
weighing function is enabled.

When a weight is placed on the scale the LED’s above the display will show if the
weight is above or below the limits and the beeper will sound as described below, if
the beeper is enabled (see section 7.1).

The relay outputs are open collector drivers to control an external relay. The relays
will be active when the corresponding LED is on during check-weighing. The ZERO
relay output will be on when the scale is showing the display is at Zero.