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產品簡介

Fluke1551A棒式標準溫度計 : 2399276633

詳細介紹

Fluke1551A棒式標準溫度計

產品描述

溫度計探頭和數字讀數裝置*集成為一個裝置
不銹鋼探頭和數字讀數裝置固定在一起，并作為一個系統進行校準。準確度技術指標易于理解，因為它包括了全部不確定度分量，包括長達一年的漂移。帶背光的大屏幕 LCD 顯示屏可旋轉 90 度，從任何角度都可輕松讀數。用戶可配置的穩定度/趨勢指示，使您可以知道溫度何時達到足夠穩定以記錄準確的測量值。用戶可設置的自動關閉功能將電池的典型壽命延長至 300 小時。電池低電量指示及停止測量功能可防止由于電池電量過低而造成錯誤測量結果。簡單的三點校準功能可輕松準確地校準“棒式”溫度計。數據記錄功能為可選功能，可將 10,000 個帶時標的測量結果存儲到內部存儲器。
為什么校準過程溫度傳感器？
溫度對體積測量準確度的影響非常大，在化學、制藥、食品或石油化工等行業的制造過程都需要準確測量溫度（尤其是那些由政府機構監管的質量或存儲運輸過程）。由于所有溫度傳感器會隨時間變化而發生漂移，因此需要利用可靠的參考溫度計對其進行定期校準或檢定。然而，尋求一款準確度高、復現性好且堅固耐用的標準溫度計一直是個難題。

功能特點
安全環保，杜絕水銀危害準確可靠，全量程一年準確度為±0.05°C 兩種型號可選：-50°C~160°C或-80°C~300°C 10000個測試數據記錄及變化趨勢指示 300小時超長電池使用壽命本安型設計，符合ATEX和IECEx認證
1551A/1552A型棒式標準溫度計是工業溫度校準領域選擇。其準確度和復現性在整個量程內達到±0.05℃/年，電池供電，攜帶方便，堅固耐用。不僅可在實驗室作為溫度標準，更可在工業現場方便可靠地實現高準確度的溫度測量。本安型設計可使其可在存在爆炸性氣體的環境安全可靠地使用。它具有如下特性：安全環保：*防止水銀溫度計破碎對人身和環境造成的危害準確可靠：全量程一年準確度指標為±0.05°C 數據記錄：10000個帶時標的測試數據記錄智能實用：用戶可配置溫度趨勢/穩定度指示兩種型號可選：1551：-50°C~160°C，1552：-80°C~300°C 超長使用時間：300小時電池壽命，電池剩余電量和低電指示，3節普通AAA電池，更換方便本安型設計：符合ATEX和IECEx，可在各種環境中使用，安全可靠符合NVLAP認證，NIST可溯源校準

福祿“課”開講

技術規格

替代水銀溫度計的五大理由
1. 由于“棒式”溫度計不含水銀，因此不受政府施加的禁令制約。世界各地的政府機構已經禁止或正在設法禁止使用和運輸工業水銀溫度計，這種趨勢似乎在增長。
2. “棒式”溫度計的不銹鋼探頭鞘比水銀溫度計的玻璃桿更堅固耐用，而且更適合在工業環境中使用。并且由于“棒式”溫度計不含水銀，因此消除了水銀意外潑濺的風險。
3. 如果考慮擁有成本，數字溫度計比水銀溫度計便宜。如果使用水銀溫度計，則需要投資購買裝置，或在水銀潑濺后雇人進行清理。
4. 水銀溫度計在校準后無法進行調節。必須對測量溫度應用修正才能校準實際溫度。這很費時，而且容易出現計算錯誤。數字溫度計會為您執行數學計算，顯示的溫度準確地表示實際測量溫度。
5. 如果水銀溫度計未在校準時所采用的相同條件下使用，則可能還需要修正水銀柱露出部分。數字溫度計不需要匹配您的校準條件即可實現準確的測量。只需符合zui低浸入要求（以 1551A Ex 為例，為七厘米（2.8 英寸））即可。

簡單操作說明

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

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.

Specifications	1551A Ex	1552A Ex
Temperature range	-50 °C to 160 °C (-58 °F to 320 °F)	-80 °C to 300 °C ( -112 °F to 572 °F)
Accuracy (1 year)	± 0.05 °C (± 0.09 °F)
Display units	°C, °F
Sensor type	100 Ω thin-film RTD	100 Ω wire-wound PRT
Probe temperature coefficient	0.00385 Ω/Ω/°C nominal
Sensor length	≤ 10 mm	≤ 30 mm
Sensor position (from sheath tip)	3 mm (0.1 in)
Minimum immersion depth	7 cm (2.8 in)	12 cm (4.8 in)
Probe sheath material	Stainless steel
Response time	4.8 mm diameter probe (3/16 in): 14 seconds 6.35 mm diameter probe (1/4 in): 21 seconds
Probe hysteresis	± 0.01 °C
Temperature resolution	Selectable: 0.1, 0.01, 0.001 (default 0.01)
Sample rate	Selectable: 0.5 seconds, 1 seconds, 2 seconds (default 1 seconds)
Operating temperature range readout	-10 °C to 50 °C (14 °F to 122 °F)
Temperature resolution	Selectable: 0.1, 0.01, 0.001 (default 0.01)
Sample rate	Selectable: 0.5 seconds, 1 seconds, 2 seconds (default 1 seconds)
Operating temperature range readout	-10 °C to 50 °C (14 °F to 122 °F)
Storage temperature	-20 °C to 60 °C (-4 °F to 140 °F) 0 % to 95 % RH, non-condensing
Optional data logging¹	Up to 10,000 time-stamped readings stored to internal memory
Logging intervals¹	2 seconds, 5 seconds, 10 seconds, 30 seconds, or 60 seconds; 2 minutes, 5 minutes, 10 minutes, 30 minutes, or 60 minutes
Damping	Moving average of the most recent 2 to 10 readings (ON/OFF, 2, 5, 10)
Communications	RS-232 stereo jack (access calibration parameters only)
AC power	None
DC power	3-AAA Batteries, typical battery life of 300 hours without LCD backlight
EMC compliance	EN61326:2006 Annex C; CISPR II Edition 5.0-2009; Class “B
Enclosure rating	IP50
Electronics dimensions (H x W x D)	114 mm x 57 mm x 25 mm (4.5 in x 2.25 in x 1.0 in)
Weight	196 g (6.9 oz)
Calibration (included)	NVLAP-accredited, NIST-traceable
Characterization	CVD	ITS-90

型號名稱	描述
1551A-9	1551A Ex Thermometer, Fixed RTD, -50 °C to 160 °C, 4.8 mm x 229 mm (3/16 in x 9 in) Includes NVLAP-accredited report of calibration, User’s Guide on CD-ROM, 3 AAA batteries
1551A-12	1551A Ex Thermometer, Fixed RTD, -50 °C to 160 °C, 6.35 mm x 305 mm (1/4 in x 12 in) Includes NVLAP-accredited report of calibration, User’s Guide on CD-ROM, 3 AAA batteries
1551A-20	1551A Ex Thermometer, Fixed RTD, -50 °C to 160 °C, 6.35 mm x 508 mm (1/4 in x 20 in) Includes NVLAP-accredited report of calibration, User’s Guide on CD-ROM, 3 AAA batteries
1551A-9-DL	1551A Ex Datalogging options Thermometer, Fixed RTD, -50 °C to 160 °C, 4.8 mm x 229 mm (3/16 in x 9 in) with Datalog Includes NVLAP-accredited report of calibration, User’s Guide on CD-ROM, 3 AAA batteries
1551A-12-DL	1551A Ex Datalogging options Thermometer, Fixed RTD, -50 °C to 160 °C, 6.35 mm x 305 mm (1/4 in x 12 in) with Datalog Includes NVLAP-accredited report of calibration, User’s Guide on CD-ROM, 3 AAA batteries
1551A-20-DL	1551A Ex Datalogging options Thermometer, Fixed RTD, -50 °C to 160 °C, 6.35 mm x 508 mm (1/4 in x 20 in) with Datalog Includes NVLAP-accredited report of calibration, User’s Guide on CD-ROM, 3 AAA batteries
1552A-12	Thermometer, Fixed PRT, -80 °C to 300 °C, 6.35 mm x 305 mm (1/4 in x 12 in) Includes NVLAP-accredited report of calibration, User’s Guide on CD-ROM, 3 AAA batteries
1552A-12-DL	Thermometer, Fixed PRT, -80 °C to 300 °C, 6.35 mm x 305 mm (1/4 in x 12 in) with Datalog Includes NVLAP-accredited report of calibration, User’s Guide on CD-ROM, 3 AAA batteries

Note: Model number appended with a -9, -12, -20 indicates probe sheath length in inches. All probe diameters are 6.35 mm (1/4 in.) with the exception of the 1551A-9, which is 4.8 mm diameter (3/16 in.).