产品名称：日新计器NISSHIN压力表AU-G3/8-75X-20kPa
产品型号：AU-G3/8-75x-20kPa
产品报价：1500
产品特点：日新计器NISSHIN压力表AU-G3/8-75X-20kPa，日系AU系列标准径向直立式结构，底部直螺纹安装设计，无安装法兰，结构简洁紧凑，不占用设备多余空间，适配狭小管路、设备柜体、小型真空设备的直装场景。标配G3/8（PF3/8）英制直管螺纹，通用性高，可匹配多数气动、负压设备标准管路接头，拆装便捷、适配性广。搭配Φ75mm标准表盘，尺寸适中，表盘刻度清晰规整，设备日常巡检、数值读取直观便捷
AU-G3/8-75x-20kPa日新计器NISSHIN压力表AU-G3/8-75X-20kPa的详细资料：
日新计器NISSHIN压力表AU-G3/8-75X-20kPa真空压力表完整解析
品名：真空計（真空压力表）量程：0 ～ -20 kPa（负压 / 微真空表）执行标准：JIS B 7505-1 日本工业标准
一、型号逐段拆解
| 代码 | 释义 |
|---|---|
| AU | A 形 径向直立式（下接螺纹、无面板安装法兰；密闭壳体通用型） |
| G3/8 | 连接螺纹 G3/8（PF3/8）英制直管螺纹 |
| 75 | 表盘外径 Φ75 mm |
| X | 量程分隔标识符（日系压力表通用标记），无其它含义。 |
| -20kPa | 测量范围：0 ~ -20 kPa（表压，负压微真空） |
日新计器NISSHIN压力表AU-G3/8-75X-20kPa
二、核心技术参数
| 项目 | 规格 |
|---|---|
| 测量量程 | 0 ～ -20 kPa（真空，微负压） |
| 精度等级 | CL.1.6 ±1.6% F.S.（满量程误差） |
| 安装形式 | 径向直立（底部螺纹直装） |
| 螺纹规格 | G3/8（PF3/8） |
| 表盘直径 | φ75mm |
| 标准接液材质 | 接头：黄铜（外层表面电镀层）；机芯：C2680R-H、BSP/BsBm |
| 壳体 | SPCC壳体（外层表面电镀层工艺） |
| 填充油 | 无充油（标准无充油干式）；振动工况可定制甘油充油耐震款 |
| 使用环境温度 | -5℃ ～ +45℃ |
| 适用介质 | 干燥空气、中性气体；禁止直接用于强腐蚀介质 ⚠️ 不可用于水乙二醇、强酸强碱（需确认 SUS316 材质） |
| 标准刻度标识 | 盘面印刷 VACUUM（真空） |
日新计器NISSHIN压力表AU-G3/8-75X-20kPa
三、结构特点
波登管式弹性元件，适配微真空、低负压工况（最大负压仅 20kPa，属于浅真空）；
密闭螺纹盖壳体，防护优于普通敞开式压力表；
无安全泄压结构，严禁超量程负压（不可长期接近 - 20kPa 极限，建议常用压力≤量程 2/3）；
无电接点；如需上下限报警，需选用 AUC 接点付系列。
四、典型应用场景
负压风机、小型真空吸附平台、真空搬运设备
风道负压监测、洁净室压差负压监测
包装机械简易真空回路、小型真空泵负压显示
气动负压回路、实验室微真空装置
五、选型 & 采购注意事项
量程确认：0~-20kPa = 最大负压 20kPa，不要混淆成 -100kPa（-0.1MPa 全真空表）；
振动环境：原装干式指针易抖动，订货时需要注明「グリセリン充填（甘油充油）」；
介质腐蚀：介质含水汽、腐蚀性气体，必须指定 SUS316 接液；
螺纹区分：G3/8 直管螺纹 ≠ R3/8 锥螺纹，管路接头不可混用；
运输防护：微压真空表波登管刚度低，极易受冲击损坏，出货必须独立防震泡沫包装；
关建词：NISSHIN真空计 NISSHIN压力表 NISSHIN真空表 日新计器真空计 日新计器压力表 日新计器真空表 VaccumGauge NisshinGauge NisshinKeiki
日新计器NISSHIN压力表AU-G3/8-75X-20kPa
NISSHIN AU-G3/8-75X-20kPa Vacuum Gauge
1. Model Breakdown
| Code | Description |
|---|---|
| AU | Type A, Radial Bottom Connection (Bottom thread, no panel mounting flange; general type with sealed housing) |
| G3/8 | Connection Thread: G3/8 (PF3/8) British Standard Parallel Pipe Thread |
| 75 | Dial Outer Diameter: Φ75 mm |
| X | Range separator (common marker for Japanese pressure gauges, no additional meaning) |
| -20kPa | Measuring Range: 0 ~ -20 kPa (gauge pressure, micro negative vacuum) |
2. Core Technical Specifications
| Item | Specification |
|---|---|
| Measuring Range | 0 ~ -20 kPa (Vacuum, micro negative pressure) |
| Accuracy Class | CL.1.6, ±1.6% F.S. (Full Scale Error) |
| Mounting Style | Radial bottom entry (direct mounting via bottom thread) |
| Thread Specification | G3/8 (PF3/8) |
| Dial Diameter | Φ75 mm |
| Standard Wetted Materials | Connection: Brass (surface electroplated); Movement: C2680R-H, BSP/BsBm |
| Housing | SPCC housing with surface electroplating treatment |
| Filling Liquid | Non-filled (standard dry type); glycerin-filled vibration-resistant version available on request for vibrating environments |
| Ambient Operating Temperature | -5℃ ~ +45℃ |
| Applicable Media | Dry air, neutral gas. Not suitable for strongly corrosive media.⚠️ Not compatible with water-glycol, strong acids and alkalis. SUS316 wetted parts must be confirmed for such applications. |
| Standard Dial Marking | "VACUUM" printed on dial |
3. Structural Features
Adopts Bourdon tube elastic element, suitable for micro-vacuum and low negative pressure conditions (max negative pressure 20kPa, shallow vacuum range).
Sealed housing with threaded cover, superior protection compared with ordinary open-type pressure gauges.
No built-in pressure relief structure. Over-range negative pressure is strictly prohibited. Avoid continuous operation near the limit of -20kPa; recommended working pressure ≤ 2/3 of full range.
Without electrical contacts. Select AUC contact-equipped series if high/low limit alarm is required.
4. Typical Applications
Negative pressure fans, compact vacuum suction platforms, vacuum handling equipment
Duct negative pressure monitoring, cleanroom differential negative pressure monitoring
Simple vacuum circuits for packaging machinery, negative pressure indication for small vacuum pumps
Pneumatic negative pressure circuits, laboratory micro-vacuum devices
5. Selection & Purchasing Notes
Range Confirmation: 0~-20kPa means maximum negative pressure of 20kPa. Do not confuse with -100kPa (-0.1MPa) full vacuum gauge.
Vibration Environment: The original dry-type gauge suffers pointer flutter. Indicate "glycerin filling" when placing orders.
Corrosive Media: Specify SUS316 wetted parts if media contains moisture or corrosive gas.
Thread Distinction: G3/8 parallel thread ≠ R3/8 tapered thread; pipe fittings cannot be interchanged.
Transportation Protection: The Bourdon tube of micro-pressure vacuum gauge has low rigidity and is vulnerable to impact damage. Individual shockproof foam packaging is mandatory for shipment.
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