Fluke1551A棒式标准温度计

产品描述 温度计探头和数字读数装置*集成为一个装置 不锈钢探头和数字读数装置固定在一起，并作为一个系统进行校准。准确度技术指标易于理解，因为它包括了全部不确定度分量，包括长达一年的漂移。带背光的大屏幕 LCD 显示屏可旋转 90 度，从任何角度都可轻松读数。用户可配置的稳定度/趋势指示，使您可以知道温度何时达到足够稳定以记录准确的测量值。用户可设置的自动关闭功能将电池的典型寿命延长至 300 小时。电池低电量指示及停止测量功能可防止由于电池电量过低而造成错误测量结果。简单的三点校准功能可轻松准确地校准“棒式”温度计。数据记录功能为可选功能，可将 10,000 个带时标的测量结果存储到内部存储器。 为什么校准过程温度传感器？ 温度对体积测量准确度的影响非常大，在化学、制药、食品或石油化工等行业的制造过程都需要准确测量温度（尤其是那些由政府机构监管的质量或存储运输过程）。由于所有温度传感器会随时间变化而发生漂移，因此需要利用可靠的参考温度计对其进行定期校准或检定。然而，寻求一款准确度高、复现性好且坚固耐用的标准温度计一直是个难题。   功能特点 安全环保，杜绝水银危害 准确可靠，全量程一年准确度为±0.05°C 两种型号可选：-50°C~160°C或-80°C~300°C 10000个测试数据记录及变化趋势指示 300小时超长电池使用寿命 本安型设计，符合ATEX和IECEx认证 1551A/1552A型棒式标准温度计是工业温度校准领域选择。其准确度和复现性在整个量程内达到±0.05℃/年，电池供电，携带方便，坚固耐用。不仅可在实验室作为温度标准，更可在工业现场方便可靠地实现高准确度的温度测量。本安型设计可使其可在存在爆炸性气体的环境安全可靠地使用。它具有如下特性： 安全环保：*防止水银温度计破碎对人身和环境造成的危害 准确可靠：全量程一年准确度指标为±0.05°C 数据记录：10000个带时标的测试数据记录 智能实用：用户可配置温度趋势/稳定度指示 两种型号可选：1551：-50°C~160°C，1552：-80°C~300°C 超长使用时间：300小时电池寿命，电池剩余电量和低电指示，3节普通AAA电池，更换方便 本安型设计：符合ATEX和IECEx，可在各种环境中使用，安全可靠 符合NVLAP认证，NIST可溯源校准 福禄“课”开讲   技术规格  替代水银温度计的五大理由 1. 由于“棒式”温度计不含水银，因此不受政府施加的禁令制约。世界各地的政府机构已经禁止或正在设法禁止使用和运输工业水银温度计，这种趋势似乎在增长。 2. “棒式”温度计的不锈钢探头鞘比水银温度计的玻璃杆更坚固耐用，而且更适合在工业环境中使用。并且由于“棒式”温度计不含水银，因此消除了水银意外泼溅的风险。 3. 如果考虑拥有成本，数字温度计比水银温度计便宜。如果使用水银温度计，则需要投资购买装置，或在水银泼溅后雇人进行清理。 4. 水银温度计在校准后无法进行调节。必须对测量温度应用修正才能校准实际温度。这很费时，而且容易出现计算错误。数字温度计会为您执行数学计算，显示的温度准确地表示实际测量温度。 5. 如果水银温度计未在校准时所采用的相同条件下使用，则可能还需要修正水银柱露出部分。数字温度计不需要匹配您的校准条件即可实现准确的测量。只需符合zui低浸入要求（以 1551A Ex 为例，为七厘米（2.8 英寸））即可。 简单操作说明

1551A Ex and 1552A Ex "Stik" Thermometer

Thermometer probe and digital readout combined into one unit

The stainless steel probe and digital readout are fixed together and calibrated as a system. The accuracy specification

 is easy to understand since it includes all uncertainty components, including drift, for up to one year1. The large backlit 

LCD display rotates 90° degrees making it easy to read from any angle. A user-configurable stability/trend indicator lets

 you know when your temperature is stable enough to record an accurate measurement. A user-settable auto-off function 

extends typical battery life to three hundred hours. A low-battery indicator and stop-measure function prevent erroneous

 measurements from being made due to low battery life. A simple three-point calibration function allows you to easily and

 accuray calibrate the “Stik" Thermometer. Data logging to internal memory of up to 10,000 time-stamped measurements

 is optionally available.

Why calibrate process temperature sensors?

Because temperature greatly effects the accuracy of a volumetric measurement, process manufacturers of chemical,

 pharmaceutical, food or petroleum products require accurate temperature measurements—especially for processes

 where quality or custody transfer are regulated by government agencies. Since all temperature sensors are subject

 to drift with time, regular calibration or verification against a reliable reference thermometer is required. Finding a

 reference thermometer that is accurate, repeatable and robust, however, can be challenging.

What’s wrong with my reference thermometer?

Industrial reference thermometers available on the market today, such as mercury-in-glass thermometers (or “ASTM therm

ometers") and portable electronic thermometers are useful, but both come with inherent problems. Although accurate and 

repeatable, mercury thermometers are fragile. The risk of a mercury spill poses potential hazards to the environment and

 to the health of personnel. Many of the United States and European Union countries have already banned their use in ind

ustrial applications. Some organizations have replaced their mercury thermometers with more durable portable electronic 

thermometers, only to discover that the RTD probes lack the repeatability and dependability required of a legitimate ref

erence thermometer.

The best alternative to mercury thermometers

The Fluke “Stik" Thermometer is accurate, stable and durable, making it the best alternative to mercury thermometers and 

existing electronic thermometers. The thin-film RTD sensor incorporates the same characteristics of other premium reference 

thermometers designed by Hart Scientific, but it is more robust and less susceptible to drift. Accuracy and repeatability,

 however, are not sacrificed for improved durability.

Using a glass-stem mercury- or spirit-filled thermometer at different immersion depths, or at significantly different ambient

 temperatures from which it was calibrated, may require the application of emergent-stem corrections that can be tedious

 but necessary to calculate an accurate measurement. This isn’t required with the “Stik" Thermometer. The sensor of the 

1551A Ex requires a minimum immersion depth of only seven centimeters (2.8 inches), with no appreciable effect on the 

measured temperature due to heat loss through stem conduction. Some digital thermometers can become less accurate

 when used outside a narrow range of ambient temperatures. This isn’t the case for the “Stik" Thermometer. Your 

measurement remains accurate in ambient temperatures from -10 degrees to 50 degrees celsius (14 degrees to 122 degrees

 fahrenheit). With a superior probe design combined with electronic functions that assist accurate measurement, the “Stik" 

Thermometer surpasses the capabilities of other digital thermometers and is the perfect substitute for your mercury

 thermometers. ¹In order to minimize sensor drift, the probe should always be protected from mechanical shock.

Five reasons to replace mercury thermometers

1. Since the “Stik" Thermometer does not contain mercury, it is not subject to government-imposed bans. 
   • Government agencies worldwide have either banned or are seeking to ban the use and transportation 
     • of industrial mercury thermometers—this seems to be a growing trend.
       • The stainless steel probe sheath of the “Stik" Thermometer is far more robust than the glass stem of a
         •  mercury thermometer and better suited for industrial environments. And since the “Stik" thermometer 
           • does not contain mercury, the risk of an accidental mercury spill is eliminated.
             • When considering cost of ownership, a digital thermometer is less expensive than a mercury thermometer. 
               • With a mercury thermometer, you either invest in equipment or you hire out to clean up after a mercury spill.
                 • Mercury thermometers cannot be adjusted after calibration. The actual temperature must be calculated by 
                   • applying corrections to the measured temperature. This costs time and is susceptible to calculation error. 
                     • A digital thermometer does the math for you—the displayed temperature accuray represents the actual 
                       • measured temperature.
                         • Emergent-stem corrections may also be required if the mercury thermometer is not used under the same
                           •  conditions under which it was calibrated. A digital thermometer doesn’t require that you match calibration 
                             • conditions to achieve an accurate measurement. You’re only required to meet the minimum immersion requir
                               • ements—which is only seven centimeters (2.8 inches) in the case of the 1551A Ex.