測量正壓，負壓和差壓

內(nèi)存中存儲40個讀數(shù)，供日后參考

超壓聲光報警

可調(diào)阻尼特性的平均讀數(shù)波動

測量任何液體或氣體兼容316L不銹鋼

德威爾系列490數(shù)字壓力計是一種多功能，手持式，電池供電壓力表，幾個基本量程0-15.0 psi 0-100磅。機器是高精度（±0.5％滿量程）為陽性或陽性差壓測量，并能與大多數(shù)液體介質(zhì)與316L不銹鋼兼容。多達七個常見的英制和公制壓力單位：磅，英寸H 2 O，英寸汞柱，毫米汞柱，千帕，巴或毫巴。記憶功能可以存儲多達40個讀數(shù)供日后回顧，背光提供輔助照明可以看到難看到的位置。標準功能，保持功能，超壓聲光報警。這些壓力計新增了一個功能是現(xiàn)場可調(diào)阻尼。

Measures positive and differential positive pressure

Stores 40 readings in memory for later reference

Audible and visual overpressure alarms

Adjustable dampening feature for averaging fluctuating readings

Measures virtually any liquid or gas compatible with 316L stainless steel

The Dwyer Series 490 Digital Manometer is a versatile, hand-held, battery operated manometer available in several basic ranges from 0-15.0 psi to 0-100 psi. Units are highly accurate (±0.5% full-scale) for positive or positive differential pressure measurement and can tolerate most liquid media compatible with 316L stainless steel. Select from up to seven common English and metric pressure units: psi, in. H2O, in. Hg, mm Hg, kPa, bar or mbar. A memory function allows storage of up to 40 readings for later recall and a backlight provides auxiliary lighting for hard-to-see locations. Standard features are a hold function, as well as both visual and audible overpressure alarms. A new feature added to these manometers is a field adjustable dampening.