PDF《YCAN》

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18 53.5 PC 2008.11.6, 2:49 PM

11 BEIJING BRIGHTY INSTRUMENT CO.,LTD. 差压表安装几何尺寸 Differential pressure gauges dimensions MODEL YCA / YCAN

(一) 后背板安装 Back mounting

(二) 固定支架安装 Steady rest mounting 注:

1、后背板只适合平面安装(如仪表板、机器外表平面等) ;

2、注意平面要坚固,使差压表安装后牢固,不会发生掉落;

3、 特殊后背板可按客户要求出图加工或照来样加工. 注:

1、固定支架安装只适用于管道安装(横向或竖向;

2、注意管道的外径不能大于 60mm;

3、仪表可以装到支架上方或下方, 方便用户自由选择. 量程范围规格代码表 TABLE OF RANGES 选型代码 code 量程规格 ranges 选型代码 code 量程规格 ranges 选型代码 code 量程规格 ranges K110 16KPa K192

100 KPa K220 400KPa K150 40KPa K196

160 KPa K240 600KPa K170 60KPa K200 250KPa 以上量程为常见量程 以上量程以外规格另行商定 other rang please con snct with us PC ・03 -4 Note: 1. back mounting fit for plate mounting (instrument plate, and outer surface etc) 2.Make sure the plane and mount the differential gauge are tight, which will not fall off. Note: 1. Steady rest mounting is suitable for pipe (horizontal or vertical) 2.Outer diameter of pipe cannot over 60mm. ② pipe clamp ③ Steady rest mounting ④ Differential pressure gauge ⑤ vertical pipe ① horizontal pipe ② pipe clamp ③ Steady rest mounting ④ Differential pressure gauge PC 2008.11.6, 2:49 PM

12 PC 北京布莱迪仪器仪表有限公司三阀组的安装、拆卸及使用方法 Three Valves mounting, disassembly and method of application 安装 Mounting 拆卸 Disassembly 1. 正常使用差压表必须配三阀组或五阀组以保护差压表正常工作. 2. 差压表和三阀组用两个索母紧固.索母和差压表接头密封面应加四氟垫片. 3. 装有三阀组的差压表在使用前必须把中间阀门打开, 并把正压阀门和负压阀门打 开. (当P+ 和P- 任意的压力先进入时,中间阀门能起到平衡差压表两腔体内的压 力的作用,以免打坏差压表. ) 4. 当P+、P-的压力正常进入三阀组后,再关闭中间阀门使差压表正常工作.如差 压表表针有轻微离零属正常, 只需把表针调到零位即可 (注意必须用肥皂水检验所 有密封口是否泄露,如有泄露必须紧固. ) 5. 差压表有后背板式安装(如图)和立管固定方法. (管卡子卡到管子上) . 1. Use differential gauge must fit out three valves in order to insure it's normal working. 2. The differential gauge and there valves are connected by two nuts tightly, nuts and socket are with PTFEspacer. 3. Open the middle valve, negative pressure valve and positive pressure valve before use the differential gauge, when either of P- or P+ input, the middle valve can have equilibrium activity, and avoid to damage the gauge. 4. When P- and P+ normal input the three valves, the close the middle valve, to make the gauge works right. If the gauge' s pointer is not at zero, please adjust it to zero (note must use soap water to inspect the seal, if has leak, please tight.) 5. The differential pressure gauge has back plate mounting (see the chart) and standpipe fixed (the pipe with clamp). 1. 首先打开三阀组的中间阀门. 并打开正压和负压阀门 (正压负压阀门原始为打开) 2. 关闭总进气的两个阀门. (在设备的主管道上) 3. 拆下更换仪表 (卸两个索母) 注意用扳子卡住差压表的接头, 只拆三阀组上的上 索母.先松开一点放空压力,再把卡到管子上的卡子螺母松掉,并把卡子拿下. 4. 再把三阀组上的两个索母慢慢松开把差压表取下. (注意一定要两个索母同时松) 5. 把新表装上的方法同上面安装方法最好换上两个新的四氟垫(确保不漏) 6. 把卡子卡好 7. 先开总开关(两个) ,再关上差压表三阀组中间的阀门(新接口用肥皂水试漏) . 8. 两分钟后把差压表表针调到零位. (如没有轻微离零不用调整) 1. Open the middle valve, negative pressure valve and positive pressure valve (negative pressure valve and positive pressure valve original state is open). MODEL YCA / YCAN PC ・03 -5 ① Differential pressure gauge ② Three Valves ③ negative pressure valve ④ positive pressure valve ⑤ middle valve ⑥ nuts ① Upper nut ② Middle Valve 2. Close these two input valves (on the main pipe of equipment). 3. Discharge instrument (discharge two nuts), use spanner lock the socket of gauge, and just discharge the nuts on three valves. Discharge pressure, then put off the nuts and clamp. 4. Screw down the two nuts and take down the differential pressure gauge (note screw down these two nuts together) 5. Then install the new gauge (same as mounting method), change two spacers to ensure it will not leak. 6. Fix the clamp. 7. Open main switch (two), then close the middle valve. (use soap water to inspect leak) 8. Two minutes later, set the pointer at zero (if it does not out off zero, you needn't to adjust). 注:在装表或卸表时,必须保证中间阀门和 P+、P- 两个阀门全部开启,以确保仪表能正常使用. PC 2008.11.6, 2:49 PM