(1)测量点的选择所选的测量点应代表被测压力的真实情况。测量点要选在直管段部分,离局部阻力较远的地方。导压管*不伸入被测对象内部而应与工艺管道平齐。导压管内径一般为6~10mm,长度不应大于50mm,否则会引起传递滞后。为了防止导压管堵塞,取压点一般选在水平管道上。当测量液体压力时,取压点应在管道下部,使导压管内不积存液体;若北侧额液体易冷凝或冻结,必须加装管道保温设备。
(2)安装测量蒸汽压力时,应装冷凝管或冷凝器,以使导压管中测量的蒸汽冷凝。当被测流体有腐蚀性或易结晶时,应采用隔离液和隔离器,以免破坏压力测量仪表的测量元件。隔离液应选在沸点高、凝固点低、物理化学性能稳定的液体。压力表尽量安装在远离传热、振动的场所,以避免其影响。在靠近取压口得地方应装切断阀,以备检修压力表时使用。COOPER POWER TOOLS TORQUE NUTRUNNER DGD 3B260A 3K2M 3ZA
FANUC ROBOTICS BACKPLANE RACK WITH POWER SUPPLY AND SIX
FEC INC DFT-132M3-S, AXIS TOOL, 200 W, 200/230 VAC, 3 P
ATLAS COPCO SERVO MOTOR BSM 43180C-R2.5 4230 1904 80 W/
FANUC ROBOTICS AXIS CONTROL PCB BOARD A16B-2200-0853/?03
ASCO TRI POINT HB20A214 PRESSURE SWITCH 25 A RES 1/8 HP
NOREN CC1300F-115 COMPACT CABINET COOLER, 75 W, 115 V,
SEW EURODRIVE DFV225S4BMHR 37 kW AC MOTOR, NNB
ALLEN BRADLEY 506-BJB-6P-24R COMBO REVERSING STARTER W/
HONEYWELL FBG 060-C750-05 CONFIGURABLE PRESSURE TRANSDU
ALLEN BRADLEY 10HP AC DRIVE 1336S-BRF100-AA?-EN5 **
FANUC DP017240 COMPUTER DYNAMIC, NNB
LITTLEFUSE MINI 297 10A 32V FUSES, LOT OF 1800, NNB
INGERSOLL RAND DEA23N3S8UTL D SERIES NUTRUNNER TORQUE W