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testo 400 智能型参比级多功能测量仪， 配有专业的测量程序，适用于高要求通风空调系统，室内空气质量，舒适度评估检测。","localOrderNoDynamic":"0560 0400","dynamicPictureMedias":[{"url":"/uploads/allimg/testo/testo-400-front-en.jpg","alt":"testo 400 Universal IAQ instrument"}],"relevantPrice":{"formattedGrossPrice":null,"formattedPrice":null,"showPrice":false,"onRequest":false},"productFeatures":null},{"code":"0563 0400 71","orderable":false,"url":"/testo400tao-zhuang-1han-san-gong-neng-re-xian-feng-su-tan-tou/p/0563-0400-71","whereToBuyUrl":null,"orderTextOnlineDynamic":null,"headlineOnlineDynamic":"testo 400 - 空调通风系统测量套装1（含三功能热线风速探头）","shortDescriptionOnlineDynamic":"testo 400空调通风系统测量套装1适用于专业的空调通风系统检测应用，，满足各类不同的风速，风量，压差，温湿度测量需求。 套装包含主机，热线风速探头（包括温度和湿度传感器），叶轮风速探头（Ø100mm）和高精度湿度/温度探头传感器，均可连接到蓝牙手柄，配置的伸缩杆及90°弯角适配器与风速探头配合使用，可轻松测量天花板风口。","localOrderNoDynamic":"0563 0400 71","dynamicPictureMedias":[{"url":"/uploads/allimg/testo/set-0563-0400-71.jpg","alt":"testo 400 air flow kit with hot wire probe"}],"relevantPrice":{"formattedGrossPrice":null,"formattedPrice":null,"showPrice":false,"onRequest":false},"productFeatures":null},{"code":"0563 0400 72","orderable":false,"url":"/testo400/p/0563-0400-72","whereToBuyUrl":null,"orderTextOnlineDynamic":null,"headlineOnlineDynamic":"testo 400 - 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testo Smart-App

The App for all applications. Multifunctional. Continuously up to date. Free.

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","picture":{"alt":null,"url":"/uploads/allimg/testo/smart-app-wow-all-in-one-1984x1280.jpg"}},{"active":false,"headline":null,"longDescription":"

Air balancing – time saving up to 30%

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风量罩重量不足 2.9kg

","picture":{"alt":null,"url":"/uploads/allimg/testo/testo-420-wow-light-weight-1984x1280.jpg"}},{"active":true,"headline":null,"longDescription":"

产品注册

通过注册您的产品，我们将例行的制造商质保延长一年。

立即注册

","picture":{"alt":null,"url":"/uploads/allimg/testo/product-registration-wow-climate-1984x1280.jpg"}}],"shortDescriptionOnlineDynamic":"testo 420风量罩用于天花板出风口测量，帮助您顺利完成空调暖通系统各项测量任务。测量底座搭配可更换风罩不仅轻巧坚固，更保证涡流出风口的精确测量。

详情：
testo 420 风量罩适用于大型进风/回风口快速精准测量，满足法规体系要求确保室内空气质量。为医院，写字楼或商业建筑的空调暖通系统测量提供可靠的支持。
 

内置气流整流栅，即使在涡流出风口也可精确测量

涡流出风口需要频繁地进行风量测量。由于出风口湍流的影响，风速经常不能准确测量。

testo 420 风量罩可有效减少测量误差。内置气流整流栅可有效降低涡流，均匀气流，从而实现风量在 80~3,500 m3/h之间精准测量。

 

轻质型风量罩，极简设置

风量罩搭载符合人体工学设计手柄及可调整显示屏，机身总重仅为2.9kg。意味着即使在大型会议室和头顶以上高度也可以轻松精准执行风量测量任务。突出的测量按钮位于风量罩底座，确保记录测量过程中的每一个读数。
  固定拉杆使得风量罩可以快速简单组装好。出厂标配的运输拉杆箱确保安全运输。
 

在线创建测量报告，使用应用程序可发送到邮箱中

下载免费的应用程序可使用更多优势功能。通过应用程序及蓝牙功能，可将智能手机和平板计算机作为第二显示屏，并进行远程控制。在使用三脚架进行天花板高处测量时尤为实用。

风量罩优势一览

• 适用于空调暖通系统测量的风量罩配备显示屏用于显示测量结果。可调整显示屏方便客户从不同角度读取测量值。
• 可完成风速，风量，绝对压力，温度和相对湿度测量任务。自动归零功能确保在微压下精确测量。

 

• 背光显示屏，所有测量值可在一屏下全部读取。通过应用程序，实现在线保存测量值和创建测量报告功能，可以分析和管理测量测量值。无需额外配备操作软件，也可以在计算机上进行数据管理。
• 风量罩集成不同测量仪器不仅仅局限于天花板出风口风量测量。拆下风罩还可用于管道内压力，风速和风量的测量。节约成本，无需采购其他仪器。

 

• 管道测量时，连接上选配的皮托管和连接软管即可。时间平均/多点平均计算功能，输入管道几何形状，两者结合使用帮助事半功倍完成管道测量。

testo 420 风量罩，标配主机，标准风罩尺寸610x610mm，5个固定拉杆，USB数据线，电池和运输拉杆箱，其他尺寸风量罩可选配。
技术数据：

NTC

测量范围	-20 ~ +60 °C
测量精度	±0.5 °C (0 ~ +60 °C) ±0.8 °C (-20 ~ +0 °C)
分辨率	0.1 °C
响应时间	45 s (t90)

电容式湿度传感器

湿度测量范围	0 ~ 100 %RH
测量精度	±1.0 %rF/year Drift ±1.0 %rF Hysterese ±1.8 %RH +3 %测量值 (at 25 °C, 5 % ~ 80 %RH) ±0.03 %rF/K (在 0 ~ 60 °C )
分辨率	0.1 %RH

差压

测量范围	-120 ~ +120 Pa
测量精度	±2 %测量值 + 0.5 Pa 在 +22 °C, 1013 hPa
分辨率	0.001 Pa
响应时间 t₉₀	1 s (t90)

探头：