Rice Lake DWM-IV Weighmeter Standard Operators Manual - Manual (Page 13)

D. FRONT PANEL FUNCTIONS
TEST — Allows the operator to test the integrity of the weight display by sequentially
lighting each segment of all digits, all segments, and each arrow indicator. These results
show that all drivers and displays operate in both the on and the off conditions.
PRESET — The DWM-IV provides up to eight (8) outputs which may be used to control
solid state relays. The system may be configured for three (3) two-speed or six (6) single-
speed, cascaded setpoints. In addition, zero interlock and FILL COMPLETE outputs are
provided which, when used with additional, external hardware, may be used to simplify
batching operations. Enter the weight value desired for each preset starting with number
zero through to number three (3) or six (6). The zero interlock preset is number zero. If it
is desired to merely view the presets already in memory, simply press [ENTER] without
pressing any numeric buttons or [CLEAR]. The weight values will be displayed from
zero (0) to three (3) or six (6) then return to normal weight display mode.
DRIBBLE — The value entered as the dribble amount is subtracted from the final
setpoint (PRESET-PREACT) and this amount is the fast feed cut-off setpoint. It
represents the amount of material desired to be filled at the slow rate. The values are
entered in the manner as described for PRESET above where number one (1) corresponds
to PRESET number one (1) above, etc. This function is only active if the two-speed
configuration has been selected.
PREACT — Enter the value of weight that is to be subtracted from the preset value in
computing the final cut-off value for the output. This value represents the amount of in-
flight material.
T/D — This function allows the operator to enter the current time and date for print-out
purposes. The time and date option must be installed and enabled for this feature to be
operative.
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