珠海歐伯特測控技術有限公司為中頻逆變點焊機提供電氣比例閥961-112-000，氣路系統(tǒng)主要由殘壓釋放閥、空氣過濾器、減壓閥、油霧分離器、電氣比例閥和油霧器組成，可實現(xiàn)過濾空氣、調(diào)節(jié)氣缸壓力大小功能。在氣路系統(tǒng)中配有儲氣罐用于提高氣壓的穩(wěn)定。其中，電極加壓力的調(diào)節(jié)采用電-氣比例閥961-112-000，可快速設定氣壓，并與性能優(yōu)越的德國博世逆變控制器相結合，實現(xiàn)焊接規(guī)范—電流、時間、壓力的任意編程、儲存、調(diào)用。大大提高了工廠對焊接工藝的管理水平。配置壓力開關，當氣源壓力超出設定值時，焊機會自動停機并報警，有利于產(chǎn)品質量的控制和對焊機自身的保護。

•New, Compact Analog and Digital Controllers •I/P and E/P - field selectable •Broad pressure ranges
（vacuum to 600 psi in different models） •Input signal: 4-20 mA, 0-20 mA, 0-50 mA, 0-100 mA, etc. •Pressure output ranges easily set at factory or by user •Solenoid valves consume very little air or gas （on/off）   •Second loop （remote, downstream sensor） feed back available •Accuracy  typically  0.2-0.5% •Digital model available with Keypad display or RS485 Serial Bus Communication •Serial Bus Permits up to 24 units to be
controlled from PC through Visual Basic,
Labview, Devicenet or Pro-fibus （coming）

Model 3110/3120 & 3111 Operational Description •Standard command signal inputs are 0-10 VDC or 4-20 mA •Double Loop option （3120） permits 0-10 VDC feedback from a remote sensor •Many output ranges are available, from 29” Hg / 740 mm Hg vacuum to 600 psig / 41 BAR （in different models） •Two manifold blocks are available to provide a choice of mounting:
1. Front ports to mount directly to a panel or inserted into a DIN rail tray.
2. Bottom ports to mount on a multi-unit manifold. Custom, multi-unit manifolds available  

Model 3210/3220 Field Mounted Pressure Controller •Weatherproof Housing •Wide range of output pressures - 29” Hg Vacuum to 600 psig
（in different models） •Low flow 1.2 SCFM - for flows in excess of
2000 SCFM, mount on a booster •Optional output monitor signals available •Double loop （3220） permits 0-10 VDC
feedback for remote sensor