Pushbutton Zero & Span Calibration

Dwyer Instruments”616OT one-touch differential-pressure transmitter isdesigned for simplicity making it a good choice for installers andmaintenance professionals. The instrument is a cost-effective, compacttransmitter that reduces up-front costs, as well as expenses over thelife of the product. The transmitter alleviates cumbersome turn potstypically found in most transmitters and eliminates the need to spanthe instrument during calibration. With a single digital pushbutton,both zero and span are calibrated properly. No additionalreference pressure sources and separate calibration devices arenecessary; no need to remove from service and send to the lab.Available models include ranges from 10 inches to 20 inches w.c. Unitscome in a compact NEMA 4X (IP65) housing. Mounting is simple withbac-mounting tabs that are inherent to the molded housing. Wiring thetransmitter is quick and convenient with a removable terminal blockthat allows the installer to wire externally, then snap the wired blockback onto the board inside the housing.