QuadGard process controller connects up to four transmitters in one wall-mountable enclosure for a variety of hazardous situations. The unit from Draeger Safety Inc. is fully configurable for all types of transmitters, gases and ranges via on-board pushbuttons and a password menu structure. Gas concentration is displayed on a two-line, 20-character LCD. Comprehensive menu structure allows users to set two alarm thresholds individually for each module or as common voting master alarms. The relays for alarms and fault include single pole, double throw (SPDT) and may be configured in a number of operating modes.
November 2000, RS# 223