yb series accurate pressure gauge
用途說明（application desc-ription）
精密壓力表主要用來校驗工業(yè)用普通壓力表也可用于精密測量對銅合金和合金結(jié)構(gòu)鋼等無腐蝕性，非結(jié)晶，非凝固的各種介質(zhì)的壓力。
yb-150型在標(biāo)度線下沒有鏡面環(huán)，使儀表讀數(shù)更清晰精確，外形美觀新穎。精確度為0.4，0.25級。
accurate pressure gauge is mainly used for testing industrial nominal pressure gauge and for accuray testing the pressure of all kinds of service medium which will neither corrode with copper allouys,to make the appearance more beautiful and more noverl.accuracy is 0.4 and 0.25 grade.
主要技術(shù)指標(biāo)（main technology data）
精確度等級 accuracy | 使用環(huán)境條件 environment condition | 溫度影響 temperature influence |
0.4，0.25 | 5-40℃，相對濕度不大于80%，且震動和壓力源的波動應(yīng)對儀表的精確度讀數(shù)無影響 relative humidity is no more than 80% and the undulate of the shock and pressure resource has no influence to accurate readings of the gauge | 使用溫度如偏離20±3℃（a型）或20±2℃（b型）時，則須考慮溫度附加誤差（0.4%/10℃） must consider the additional error if the environment temperature deviate from 20±3℃(a model) and 20±2℃(b model) |
型號model | 測量范圍 measuring range (mpa) |
0.4級(grade) | -0.1～0，0～0.1，0～0.16，0～0.25，0～0.4，0～0.6，0～1，0～1.6，0～2.5，0～4，0～6(a型) |
0.25級 yb150b | 0～10，0～16，0～25，0～40，0～60 |
