Proportional pressure regulator QKL-B1

PIDmulti-stagedigital

QKL-B1TR/QKL-B4HR is an ultra high resolution electro-pneumatic proportional pressure control valve that provides step control of ±0.005% F.S., ideal for very sensitive applications. This series is a complete closed loop servo system consisting of two solenoid valves, an internal pressure transducer, and electronic controls. A bleed orifice of 0.1mm (M5 exhaust) comes with this series. Based on input signal, the pressure is controlled by two solenoid valves and the bleed to maintain precise pressure; one valve functions as inlet control, the other as exhaust, and a constant bleed. This series features fast and high resolution pressure change. The pressure output is measured by an internal feedback pressure transducer that provides a feedback signal to the electronic controls. There are 3 selections of input signal and monitor signal: 0-10VDC, 4-20mA or RS485 ModBus. All our products have CE, SGS, RoHS certification with ISO13485 quality system. - Features: - Compact - High Precision - High Sensitivity - Wide Pressure Range - Applications: - Leak Testing At Low Pressure - Microfluidics Flow Control - Dispensing - Multi-Stage Pressure Control *Technical Specifications:* - Model: QKL-B1TR / QKL-B4HR - Output Range: 2 / 5 / 10 bar (29 / 72 / 145 psig) - Supply Pressure Max: 11.5 bar (165 psi) - Input Signal: 0-10V / 4-20mA / RS485 - Monitor Output: 0-10V / 4-20mA / RS485 - Supply: DC24V (≦3W for QKL-B1TR, ≦5W for QKL-B4HR) - Medium: Clean compressed air or with 5 µm filter - Repeatability: ±0.02% F.S. (QKL-B1TR), ±0.05% F.S. (QKL-B4HR) - Resolution (max): ±0.005% F.S. (QKL-B1TR), ±0.01% F.S. (QKL-B4HR) - Accuracy: ±0.1% F.S. - Hysteresis: ±0.1% F.S. - Flow Rate: 2.5L/min @ 1bar (orifice: 0.45mm, QKL-B1TR), 3L/min @ 1bar (orifice: 0.5mm, QKL-B4HR), 120L/min@1bar (orifice: 3.0mm, QKL-B4HR) - Operating Temperature Range: 0 ~ 70 ⁰C (32 ~ 158 ⁰F) - Port Size: 1/8" PT - Manifold Material: Aluminum - Wetted Materials: Aluminum, Stainless steel, Brass, FKM - Electrical Connection: M12 Connector (2m) - Ingress Protection: IP 65 https://www.genndih.com/