Dwyer Instruments 1900-10MR Pressure Switch 326010-701 and cooling tower motors where

and cooling tower motors where real-time proof of flow or belt-loss detection is critical for system interlocks

press the diagnostic pushbutton

maintaining the original UL safety listings of the equipment

this York pressure switch provides the exact 0

as excessive force can crack the plastic housing and lead to immediate leaks

Dwyer Instruments 1900-10MR Pressure Switch 326010-701 and cooling tower motors whereThe Dwyer 1900 10MR is a precision engineered low differential pressure switch designed for critical monitoring of air and non combustible gases. As part of the 1900 series, this model offers a versatile set point range of 3. 0" to 11. 75" w. c., making it a staple for contractors managing high limit applications where safety and system integrity are paramount. The manual reset functionality ensures that any pressure excursion beyond the set point