压力校验仪是基于“加在密闭液体上的压强，能够大小不变地由液体向各个方向传递。（帕斯卡定律）”进行工作的。压力控制器通常由柱塞或螺杆活塞泵（手动的居多）产生压力，并通过密闭管道分别传导到被校表和标准表上进行刻度（指示值）对比（即校验）。校验的精度是由标准表的精度决定的，精密数字压力计目前国内*高精度为0.05级，液位控制仪在需要检定被检设备时很容易就能找到需要的高精度标准表。压力校验仪中有一种砝码式活塞式压力计，液位控制仪可以达到0.05级，是国家计量监督部门标准计量设备。活塞式压力计具有准确度高、性能稳定、操作简单等优点，在量值传递、精密测量、常规测量方面得到了广泛的推广和使用。
活塞式压力计误差主要来源有两个:一个是活塞有效面积A；另一个是砝码质量m。由于各地重力加速度不同，压力控制器对活塞式压力计的误差影响很大。在不同地区使用活塞式压力计要注意对砝码的质量按使用地点的重力加速度进行修正。根据以上的介绍，压力控制器我们对活塞压力计能够有一定的了解。
N-15S-200,N-15W-100,N-15W-200,N-20S-200,N-20W-100,N-20W-200,N-25S-100,N-25W-100,
N-25W-200,N-32S-200,N-32W-100,N-32W-200,N-40S-200,N-40W-100,N-40W-200,NF-50S-200,
NF-50W-100,NF-50W-200,ND-15S-200,ND-20W-100,N-40S-100,
VY6100A1002,VY6100B1001,VY6100C2010,VY6100D2009,VY6100C3016,VY6100D3025,电动二通球阀
VY6100A1000,VY6100A1010,VY6100A1008,VY6100A1016,VY6100A1024,VY6100A1032,VY6100A1040,
VY6100B1003,VY6100B1011,VY6100B1009,VY6100B1017,VY6100B1025,VY6100B1033,VY6100B1041,
VY6100C2002,VY6100C2000,VY6100C2008,CCLAIR,VY6100C2016,VY6100C2024,VY6100C2032,VY6100C2040,
TLEWN50E-WS,TLEWN50E-WP,TLEWN50E-WM,TLEWN50E-WA,TLEWN50E-WV,大功率报警器
VY6100D2003,VY6100D2001,VY6100D2011,VY6100D2017,VY6100D2025,VY6100D2033,VY6100D2041,
VY6100C3002,VY6100C3000,VY6100C3010,VY6100C3008,VY6100C3024,VY6100C3032,VY6100C3040,
VY6100D3003,VY6100D3001,VY6100D3011,VY6100D3009,VY6100D3017,VY6100D3033,VY6100D3041,
VY5218,VY5219,VY5228,VY5229,VY5238,VY5239,VY5248,VY5249,电动二通阀
T6065A2026,T6065B2024,T9065A2020,T9065B2028,室内温度控制器
T7090C100,T7090C104,T7090D104,室内温度传感器
TN4605F6101,室内恒温器
VJ200A1500,VJ200A2000,VJ200A2500,VJ200B1500,VJ200B2000,VJ200B2500,风机盘管用热动控制阀
TJ600A1111,TJ601A1111,TJ602A1111,TJ603A1111,TJ604A1111,风机盘管用室内恒温器
HPV-S11,HPV-S12,HPV-D13,光电开关
FHDK10N5101,传感器
HPQ-D11,HPQ-D12,传感器
HPX-NT1,HPX-NT2,HPX-NT3,HPX-NT4,传感器
HPQ-T1,HPQ-T2,传感器
TH200,直焊式无源隔离模块
HPX-H1,HPX-H2,HPX-A1,HPX-A2,HPX-F1,HPX-F2,HPX-V1,HPX-V2,光电开关
HPX-ETR1,HPX-ETR2,光电开关
HPX-MA,传感器
HPA-G11,HPA-G21,光电开关
FE7W-DA5K,FE7W-DB5K,FE7W-DA5,FE7W-DB5,光电开关
FE8V-TA6,FE8V-TB6,FE8V-TT2,FE8V-TU2,光电开关
HLA-C250DN,HLA-D300DN,传感器
HLA-D130A,HLA-D250A,HLA-D500A,HLA-CN5P,传感器
FL2S-4J6HD,FL2S-4K6S,FL2R-4J6HD,FL2R-7J6HD,FL2R-12K6H,FL2R-20J6HD,接近开关
FL2S-4K6H,FL2S-4J6SD,FL2R-4K6H,FL2R-4J6SD,FL2R-4K6S,FL2R-7K6H,FL2R-7J6SD,
FL2R-7K6S,FL2R-12J6HD,FL2R-12J6SD,FL2R-12K6S,FL2R-20K6H,FL2R-20J6SD,
FL2R-20K6S,
FL7S-1A6W-CN08,FL7S-1D6W-CN08,FL7S-2W6W-CN03,FL7S-5W6W-CN03B,FL7S-8W6W-CN03,接近开关
FL7S-8W6W-CN03B,FL7S-2W6W-CN03B,FL7S-5W6W-CN03,
FL7M-4W6,FL7M-8W6,FL7M-15W6,FL7M-4Y6,FL7M-8Y6,FL7M-15Y6,FL7M-4W6-CN03,接近开关
FL7M-4Y6-CN03,FL7M-8W6-CN03,FL7M-8Y6-CN03,FL7M-15W6-CN03,FL7M-15Y6-CN03,
FL2R-12A5HV,FL2R-12B5HV,FL2R-12D5HV,FL2R-12E5HV,FL2R-12A5SV,FL2R-12B5SV,接近开关
FL2R-12D5SV,FL2R-12E5SV,
N5-3,液体流量开关
XSJ/C-H1VT0B2A2S2V0,XSJ/C-H1VT0B2A2S2V1,XSJ/C-H1VT0B2A2S2V2流量积算仪
XSJ/C-H1VT0B2A2S3V0,XSJ/C-H1VT0B2A2S3V1,XSJ/C-H1VT0B2A2S3V2
XSJ/C-H1VT0B2A3S0V0,XSJ/C-H1VT0B2A3S0V1,XSJ/C-H1VT0B2A3S0V2
XSJ/C-H1VT0B2A3S1V0,XSJ/C-H1VT0B2A3S1V1,XSJ/C-H1VT0B2A3S1V2
XSJ/C-H1VT0B2A3S2V0,XSJ/C-H1VT0B2A3S2V1,XSJ/C-H1VT0B2A3S2V2
XSJ/C-H1VT0B2A3S3V0,XSJ/C-H1VT0B2A3S3V1,XSJ/C-H1VT0B2A3S3V2流量积算仪
XSJ/C-H1KT0B0A0S0V0,XSJ/C-H1KT0B0A0S0V1,XSJ/C-H1KT0B0A0S0V2
XSJ/C-H1KT0B0A0S1V0,XSJ/C-H1KT0B0A0S1V1,XSJ/C-H1KT0B0A0S1V2流量积算仪
XSJ/C-H1KT0B0A0S2V0,XSJ/C-H1KT0B0A0S2V1,XSJ/C-H1KT0B0A0S2V2
XSJ/C-H1KT0B0A0S3V0,XSJ/C-H1KT0B0A0S3V1,XSJ/C-H1KT0B0A0S3V2
XSJ/C-H1KT0B0A1S0V0,XSJ/C-H1KT0B0A1S0V1,XSJ/C-H1KT0B0A1S0V2
FL7M-2J6AD,FL7M-2K6A,FL7M-4J6AD,FL7M-4K6A,FL7M-8J6AD,FL7M-8K6A,接近开关
FL7M-2J6AD-CN03,FL7M-2K6A-CN03,FL7M-4J6AD-CN03,FL7M-4K6A-CN03,
FL7M-8J6AD-CN03,FL7M-8K6A-CN03,
TLEWN40T-WS,TLEWN40T-WP,TLEWN40T-WM,TLEWN40T-WA,TLEWN40T-WV,壁装式报警喇叭
FL7M-3T7HD,FL7M-7T7HD,FL7M-10T7D-CN,FL7M-3T7HD-CN03,FL7M-7T7HD-CN03,接近开关
FL7M-10T7D-CN03,FL7M-10T7D,FL7M-3T7HD-CN,FL7M-7T7HD-CN,
FL7M-1P5A6,FL7M-2A6,FL7M-2B6G,FL7M-5A6,FL7M-10A6,FL7M-1P5B6,FL7M-5B6,接近开关
FL7M-1P5D6,FL7M-1P5E6,FL7M-2B6,FL7M-2D6,FL7M-2E6,FL7M-2A6G,FL7M-2D6G,
FL7M-2E6G,FL7M-5D6,FL7M-5E6,FL7M-10B6,FL7M-10D6,FL7M-10E6,
APM-A3A1,APM-B3A1,APM-C3B1,APM-D3A1,APM-A3E1,APM-D3B1,APM-B3E1,接近开关
APM-A3B1,APM-A3D1,APM-B3B1,APM-B3D1,APM-C3A1,APM-C3D1,APM-C3E1,
APM-D3D1,APM-D3E1,APM-C3A1-S,APM-C3B1-S,APM-C3D1-S,APM-C3E1-S,
LSA-A502,LSA-A702,**用钥匙开关
LJA10-11A21N,LJA10-13A21N,LJA10-57A21N,限位开关
LJS-PA592,LJS-PA792,**钥匙开关
TH80,直流信号输入**栅
LJM-B502,LJM-B5023,LJM-B515,LJM-B5153,限位开关
LJH-D11,LJH-D13,LJH-D15,LJH-D1,LJH-D23,LJH-D25,**钥匙开关
LJK-P118H29,LJK-P518H29,LJK-P145H29,LJK-P545H29,LJK-P701H29,LJK-P102H29,限位开关
LJK-P502H29,LJK-P702H29,
LJS-E7312,LJS-E5312,LJS-E7512,LJS-E5512,**钥匙开关
LJS-TE7312,LJS-TE5312,LJS-TE7512,LJS-TE5512,**钥匙开关
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