Relay action may be derived from either the filtered or unfiltered DPM input signals. Using the unfiltered signal improves response time, which is typically 17 ms for a DPM with the solid state relay board. Fast response time is one of the major strengths of Laureate DPMs, which can digitize analog data as often as 60 times per second. Using the filtered input reduces the chance of alarm triggering due to noise. Provisions for signal noise.
Snubber circuitry is part of the contact relay board to prolong contact life.
The relay response time of counters is controlled by a selectable gate time from 10 ms to 199.99 s. Setup Setpoint values and deviation bands are easily entered via front panel pushbuttons or by computer via the serial interface. Security lockout of the front panel pushbuttons may be set to allow operators to view but not change setpoint values. Front panel push-button operation can also be completely disabled. The Laureate Weight Meter and Batch Controller offer setpoint control modes beyond those of normal meter or counter operation.