BB2/PSR & QB2/PSR
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BB2 Control Valve Electrical Inputs & Monitor Outputs Zero/Span Access Cap QB2 Control Valve Supply Pressure Controlled Pressure Proair Volume Booster External Feedback Supply Pressure Controlled Pressure BB2/PSR & QB2/PSR PRESSURE CONTROL VALVES

■ Closed loop electronic control of pressure ■ Eliminates time consuming manual regulators ■ Increases productivity by reducing cycle times ■ Immune to shock and vibration ■ Can be mounted directly on the machine ■ Simplifies installation and design ■ QB NEMA 4 anodized enclosure ■ Withstands industrial environments ■ Suitable for European installations ■ Saves costly downtime ■ Analog or BB digital command option ■ Allows many control options ■ Non air consuming in steady state ■ Reduces noise and saves energy ■ Control pressure up to 200 psig, flow up to 700 scfm ■ Accurate pressure...

FUNCTIONAL DESCRIPTION BB2/PSR and QB2/PSR pressure control valves combine ProportionAir’s closed loop electronic pressure control valve and ProAir series volume booster into one complete package. Output pressure is proportional to an electrical signal input. Three components make up the valve package: BB2 or QB2 electro-pneumatic valve, an external transducer, and ProAir electropneumatic valve regulator. BB2/QB2 Theory of Operation At the heart of this package is the BB2 or QB2 closed loop electronic pressure control valve. The BB2 or QB2 is a complete closed loop system consisting of...

PERFORMANCE CHARACTERISTICS Command [Volts] This chart shows the linear characteristics of BB2/PSR or QB2/PSR products when given a ramp signal from 0-10 volts. Characteristics would be similar for 4-20 mA units. RESPONSE TO STEP INPUT FLOW CHARACTERISTICS Flow [SCFM] FLOW CHARACTERISTICS Flow [SCFM] closed chamber. Step command signal is superimposed over pressure trace. Time is determined by difference between command signal and pressure achieved. FLOW CHARACTERISTICS Flow [SCFM]

QB2/PSR* *w/optional DS Series Transducers 6.06 [154] GREEN LED, CONDITION INDICATOR (MONITOR OPTION MODELS ONLY) RED LED, POWER INDICATOR ELECTRICAL CONNECTIONS 3 PIN - BRAD HARRISON 5 PIN - BRAD HARRISON 18 PIN - DIGITAL BB HIRSCHMAN STYLE CONNECTOR CALIBRATION ADJUSTMENTS 1/8-27 NPTF RELIEF PORT E MAIN BODY CALIBRATION ADJUSTMENTS (NORMALLY SEALED) A 1/8-27 NPTF RELIEF PORT D C PRESSURE TRANSDUCER CALIBRATION ADJUSTMENTS (NORMALLY SEALED) PRESSURE TRANSDUCER CALIBRATION ADJUSTMENTS (NORMALLY SEALED) MODEL PORT SIZE FLOW Dimensions are for reference use only.

SECOND LOOP INFORMATION All BB2 valves come with a matched pressure transducer for second loop feedback input. This transducer may be excluded by ordering option S59. Select this option if using a sensing device other than the pressure transducer provided. QB2 valves do not come with a matched pressure transducer for second loop feedback input. Standard QB2 valves accept CMOvdc second loop signal. Special options are available for 4-20mA and unamplified feedback signals. The second loop feedback can be wired directly to the 6-pin Hirschmann connector or through an auxiliary receptacle (S305...

2 = Two loop M=Aluminum S=Stainless steel MONITOR OPTION COMMAND INPUT MONITOR MAX. CALIBRATED SIGNAL PRESSURE Ranges Available E=Voltage 0 thru 200 psig 0-10 Vdc C=Current Examples: 4-20 mA 100=0-100 psig Blank=No Monitor F=Monitor SPECIFY 005=0-5 psig 020=0-20 psig 159=0-159 psig E=Voltage 0-10 Vdc I=Current 4-20 mA D=Digital K=Digital Latching MONITOR SIGNAL WITH THIS OPTION MONITOR SIGNAL COMMAND INPUT F=Monitor MONITOR STANDARD (4-20 mA optional) ACCESSORIES QB2 POWER CORDS VOLUME BOOSTER SPECIAL OPTIONS S14 = Third valve fail safe S59 = Build w/o external transducer S191 = 4-20...