What the published case establishes
Endress+Hauser describes temperature monitoring of a UHT nutrient-solution process at Chr. Hansen in Denmark using its iTHERM TM411 thermometer. The account highlights response speed and recalibration with the process remaining closed. This is a third-party published case, not a WESIVO installation or a WESIVO performance claim. The source is linked below.
The following RFQ workflow is independent procurement guidance. It does not copy the case's process setpoints, validate a sterilization recipe or establish interchangeability with the equipment used there.
Start with the measurement duty
Identify each temperature tag as an indication, process-control input, batch record or input to a separately engineered protective function. Ask the process owner to supply the required operating envelope and acceptance criteria. Record which party owns the control logic, any product diversion, alarms and final commissioning approval.
Describe the medium, normal and upset temperatures, pressure, cleaning conditions, pipe size, installation orientation and maintenance access. Attach a connection drawing. For a hygienic duty, list the required materials, surface finish, seals and documentary approvals for the actual ordered assembly. A catalogue label alone does not establish suitability for a validated food process.
Quote the installed assembly, not only the sensing element
Identify the probe, insert, process connection, any thermowell, transmitter and electrical interface on one revision-controlled drawing. WIKA's thermowell guidance explains that the additional thermal path affects response; its material and geometry matter. Keep mechanical and pressure requirements in the review rather than removing protection simply to obtain a faster catalogue number.
For procurement, make the configuration traceable: ask whether the submitted response evidence applies to a bare probe or the offered complete assembly. A certificate for a different insertion length or output setting needs an explanation of its relevance before it becomes acceptance evidence.
Agree where the response measurement ends
- Sensor or assembly test: identify the temperature step and the point at which its output is recorded.
- Transmitter test: state the electrical stimulus, configured range, output and damping settings.
- Control-system check: identify the input module, filtering, sampling and timestamp used for the recorded value.
- Functional commissioning: define the approved site procedure, witnesses and responsibility for testing the intended action.
These are proposed work packages, not four results supplied by an instrument name. Ask each supplier to state its boundary. A resistance simulator can exercise an electrical input without heating the installed probe; label that record accordingly.
Build a short evidence pack before comparing prices
Request the offered configuration, installation drawing, response-test method and raw time trace where required by the purchase specification. Include test medium, flow condition, initial and final temperatures, immersion, thermowell configuration, measurement point, instrument settings and test date. Identify exceptions explicitly instead of treating an unspecified response time as a guaranteed installed result.
At handover, keep the approved settings and the final drawing with the instrument tag. Record configuration changes during commissioning so that a later replacement can be ordered against the accepted assembly rather than an incomplete family name.
WESIVO selection enquiry
The confirmed WESIVO catalogue provides TT30E sanitary temperature transmitter and TT20R industrial temperature sensor enquiry routes. Send the process and mounting information above for configuration review. Any response-time commitment, hygienic approval or application acceptance must be confirmed for the quoted assembly; no TM411 result is attributed to these WESIVO products.
Use the companion t50/t90 guide to specify what the response percentage means. Send the drawing and acceptance requirements through the linked contact page to keep the instrument quotation and the integrator's responsibilities clear.
公开案例说明了什么
Endress+Hauser 的公开案例介绍了丹麦 Chr. Hansen 的 UHT 营养液工艺温度监测，使用其 iTHERM TM411 温度计，关注响应速度及工艺保持封闭时的重新校准。这是第三方发布的案例，不是 WESIVO 安装项目，也不代表 WESIVO 产品性能。原文链接见下方资料。
以下为独立的采购询价整理建议，不照搬案例中的工艺设定值，不验证灭菌配方，也不认定可与案例设备直接互换。
先明确测量任务
逐一说明温度位号用于显示、过程控制、批次记录，还是为另行设计的保护功能提供输入。由工艺责任方提出运行范围与验收要求，明确控制逻辑、产品分流、报警及最终调试批准的责任归属。
提供介质、正常与异常温度、压力、清洗条件、管径、安装方向和检修空间，并附连接图。卫生工况还需列明实际订购总成所需的材料、表面处理、密封及文件批准要求；样册名称本身不能证明适用于已验证的食品工艺。
报价应对应安装总成
在受控版本图纸上标明探头、芯体、过程连接、保护套管（如有）、变送器及电气接口。WIKA 的套管说明指出，增加的传热路径会影响响应，材料和几何尺寸也有影响。评审时应同时保留机械及承压要求，不能仅为追求更快的样册数值而去掉保护。
采购应核对配置可追溯性：提交的响应证据针对裸探头，还是报价中的完整总成？若证书对应不同插深或输出设置，应先说明适用依据，再决定能否作为验收证据。
约定响应测量的终点
- 传感器或总成试验：注明温差阶跃，以及输出记录的具体位置。
- 变送器试验：注明电气激励、设置量程、输出和阻尼设置。
- 控制系统核对：注明输入模块、滤波、采样及记录值所用时间戳。
- 功能调试：明确现场批准的程序、见证人员及预期动作的测试责任。
这是建议划分的工作内容，不是凭一个仪表名称就能交付的四项结果。要求各供货方明确范围。电阻模拟器可以测试电气输入，但并没有加热现场探头，相应记录应清楚标注。
比价前整理简明证据包
根据采购规范，索取报价配置、安装图、响应测试方法及需要的原始时间曲线。记录测试介质、流动条件、初始与最终温度、浸入深度、套管配置、测量点、仪表设置及测试日期。明确列出例外，不把未注明条件的响应时间视为现场安装后的保证值。
交接时，将批准的设置和最终图纸与位号一并保存。记录调试中的配置变化，后续替换才能依据验收总成订购，而不是仅凭不完整的系列名称。
WESIVO 选型沟通
已确认的 WESIVO 样册提供 TT30E 卫生型温度变送器与 TT20R 工业温度传感器选型入口。请提交上述工艺和安装信息，核对实际配置。响应时间承诺、卫生相关批准及应用验收，均需针对报价总成另行确认；本文不将 TM411 的结果归于这些 WESIVO 产品。
可用配套 t50/t90 指南明确响应百分比的含义，再通过联系页面提交图纸和验收要求，分别确认仪表报价与集成方责任。
Discuss your application
Send your medium, operating conditions, connection, output, quantity and destination. WESIVO will review the configuration before quotation.