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A06B-6066-H005导压管堵塞问题
在压力测量中,有时指示的压力不随工况而变化。打开排污阀后只有少量的污水后就没水流出,这是由于水质或压缩空气中会带有少量的浮尘,随着水流而进入导压管沉淀。日积月累的运行,导压管的管壁会腐蚀积垢,出现堵塞现象。
变送器设备本身故障问题
在润滑油压力的测量中,由于润滑油压力信号参与停机联锁控制。润滑油压力变送器测量所得的信号传输给计算机,一方面进行显示,另一方面此信号还通过程序比较,当压力低于0.06MPa时,发出缺油停机信号停机。
从润滑油压力信号趋势图上看到压力是瞬时直线下降而导致跳机的,检查变送器后发现变送器的内部模块损坏。虽然每年都对变送器进行定期的校验,检定合格后用于生产。由于变送器经过几年的运行后,其精度、灵敏度、稳定性等性能指标都会逐渐降低,内部的膜片、集成块也会损坏发生故障。
存在干扰问题
在空压机排气压力的测量中,排气压力信号的波动较大。校验变送器后符合精度要求,排除变送器本身的故障;检查导压管及接头也没有破损、漏气,信号电缆的连接处接触良好。但电缆的走向是通过高配室旁边的电缆桥架引入控制室的。周围存在着大量的电磁干扰。
A06B-6066-H005
3 STEC MFC SEC-4400M BCl3 100 SCCM, used
2 STEC MFC SEC-4400MC N2, WF6, used
4 STEC MFC SEC-4400M Cl2, HBr, used
5 STEC MFC SEC-4400M C3F6, WF6, SiH4, used
7 STEC MFC SEC-4400M, O2, SiH4, Ar, BCl3, Cl2, used
6 STEC MFC SEC-4400M, NH3, CF4, CHF3, used
2 Porter Mass Flow LB-366 NVL-003FA 5.0 ML/min TEOS
UNIT Series 8560 MultiFlo 500 PSI MAX/ 3500 kPa
Aera FC-7810CU 20 SLM O2
FloCat GFM37S-TCDL2 HCl 0-50, L/min max 500psi/3400 KPa
LAM 839-011025-1 NuPro Manometer ISO
2 GaSonics A90-031-03 PCB Plasma/Lamp Failure Detection
New AMAT 0020-70223 Endura-Centura Chamber Blank Off
New AMAT 4020-01094 GLF 4000 VM4 4HS-P7442-0
AMAT 0090-00513 Pressure Switch, Harness Assy
2 HP 10400A Miniature Passive Probes
MKS 122AA-01000BB, Baratron 1000 Torr
Keyence Sensor Fiber 7-39-79386, FU-51TZ (2000)
SVG 99-80266-01 Station CPU Lot of 2
20 New EEJA CP-032 Vacuum, Pad, #2 E393-2506K
AMAT 1140-90114 PSU, 45W, Multi, O/P
New Eutegris Gatekeeper CE2500 KF14R Inert Gas Purifier
Leyblod Inficon Sky Capacitance Diaphragm Gauge
AMAT 0840-90137 LED Ultra Bright 8MM, Lot of 2
Aera MFC TC FC-980C, SiH4 1 SLM with Calabration SHEET
Aera MFC TC FC-980C, MULTI, MULTI-1
Aera MFC TC FC-980C, BCL3,100 SCCM
Aera MFC, 10 RA FC-980C, SiH4, 20 SCCM
Aera MFC FC-770AC Ar 200 SCCM
Aera MFC FC-770AC, N2 200 SCCM
Aera MFC, TC FC-980 PH3/He 500 SCCM 800PPM
UNIT 1660 UFC-1660 He 10 SLPM with calabration sheet
Brooks Pure Digital 6256, Mod # 6256B7BA2ADLAA
Brooks Mass Flow Controller 5964, Mod # 5964
OMEGA CN371-KC2, NEW
Brooks MFC 6256S, Mod # 6256SBZVCLA, Gas CH3F
NUPRO 6LV-BNBW4-O with VCR connection
Flow Meter and Pressure gauge, Norgren polycarbonate
New MRC AlCu Target from Williams Advanced Materials
MKS 109070028CE, Vacuum gauge, New
Reliance Conductor Small D-C motors
AE RFPP LF-5 RF Generator and RFPP ATL-100RA RF Match
9 New Schneider Electric Circuit breaker 20A
N-48 KEYENCE TERMINATOR 0106043 lots of 3
7 New AMAT 0680-02000, CB MAG Therm, 1P
BELKIN OMNI VIEW FCKG240354 QG
A06B-6066-H005