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The Series A3000 Photohelic® Switch/Gages function as versatile, highly repeatable pressure switches combined with a precise pressure gage employing the time-proven Magnehelic® gage design. The Photohelic® switch/gage measures and controls positive, negative or differential pressures of air and compatible gases. Standard models are rated to 25 psig (1.7 bar) with options to 35 (2.4) or 80 (5.5 bar) psig. Two phototransistor actuated, DPDT relays are included for low/high limit control. Easy to adjust set point indicators are controlled by knobs located on the gage face. Individual set point deadband is one pointer width – less than 1% of full scale. Set points can be interlocked to provide variable deadband – ideal for control of fans, dampers, etc. Gage reading is continuous and unaffected by switch operation, even during loss of electrical power. Choose from full scale pressure ranges from a low 0-.25 in (0-6 mm) w.c. up to 30 psi (21 bar).
price by request
Bourdon tube pressure gauges aluminium case DS 10” (250 mm)
These instruments are designed for use in chemical and petrochemical processing industries, and in conventional power plants, built to resist the most severe operating conditions, to measure gaseous or liquid media which do not have high viscosity or do not crystallize.
price by request
Laboratory pressure gauges class 0,1% DS 10” (250mm)
These instruments have been designed for use as in laboratories, instrument testing or recalibration facilities or in applications where accuracy and repeatability are of prime importance. They can be used with gaseous or liquid media which do not corrode copper alloy and which do not have high viscosity nor cristalize. Each instruments is delivered with a Nuova Fima calibration report, who guarantee traceability to the national and international primary master of pressure measurements. Upon request we can supply the calibration certificate issued by an Internationally recognized laboratory of ACCREDIA (Ex S.I.T. – Italian Calibration Service).
price by request


