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Home Environmental & Temperature Temperature Calibration Dry Block / Metrology Well Calibrators

Fluke 9171-X-256 Field Metrology Well – Choice of Insert

Stability, accuracy and uniformity of a bath calibrator
Practicality of a dry well tester
Available in seven models
Ideal for calibrating temperature sensing instruments

SKU

Fluke 9171-X-256

MPN

3015978

View All Dry Block / Metrology Well Calibrators

Description Offers Technical Info Reviews

The Fluke 9171-X-256 Field Metrology Well – Choice of Insert is optimised for calibrating temperature sensing instruments such as temperature probes, thermometers and thermal switches. It has a temperature range of -30°C to 155°C and is available in seven models with different disc inserts; please see the table below for further details.

Product Code	Product Name	9171 Disc Insert Name	Disc Insert Part Number	Hole Types
9171-A-256	Fluke 9171-A-256 Field Metrology Well	A	9171-INSA	Misc Holes
9171-B-256	Fluke 9171-B-256 Field Metrology Well	B	9171-INSB	Comparison Holes
9171-C-256	Fluke 9171-C-256 Field Metrology Well	C	9171-INSC	0.25-inch Holes
9171-D-256	Fluke 9171-D-256 Field Metrology Well	D	9171-INSD	Metric Comparison Holes
9171-DW-256	Fluke 9171-DW-256 Field Metrology Well	DW	N/A	INDICATES THAT A DISC IS NOT INCLUDED
9171-E-256	Fluke 9171-E-256 Field Metrology Well	E	9171-INSE	Metric Misc Holes with 0.25-inch Ref Hole
9171-F-256	Fluke 9171-F-256 Field Metrology Well	F	9171-INSF	Metric Comparison Misc Holes with 0.25-inch Ref Hole
For a visual indication of how these discs will appear, please see the attached datasheet listed under 'Technical Specifications'.

PLEASE NOTE that these instruments do NOT include integrated reference thermometry, therefore they cannot read external PRTs with ITS-90 coefficients. Versions of these instruments with integrated reference thermometry are available here.

The Fluke 9171-X-256 Field Metrology Well is able to provide the user with a heat source that is stable to ±0.005°C across its full temperature range. This is achieved as a result of the inclusion of Fluke’s patent-pending proprietary electronics and dual-zone control (analogue and digital). These features, as well as the inclusion of a well with a depth of 203mm, also facilitates the calibrator’s ability to provide temperature uniformity over a zone of 60mm, with an axial/vertical uniformity of up to ±0.02°C (at 0°C). The Fluke 9171-X-256 Field Metrology Well also provides a radial uniformity between wells of ±0.01°C.

The depth of the well and dual-zone controls also help to minimise loading effects, reducing them to ±0.005°C. Furthermore, a deeper well ensures that temperature probes are properly immersed thereby accounting for and testing all the characteristics of the instrument, including:

The location and size of the sensor
The width and thermal mass of the probe
Any lead wires

The depth of the integrated well, therefore, ensures that temperature sensing instruments are accurately calibrated. The instrument itself has been calibrated using accredited, traceable PRTs in order to ensure its accuracy. This combined with the Fluke 9171-X-256 Field Metrology Well’s proprietary electronics maintains the instrument’s repeatable, display accuracy of ±0.1°C and lowers the effects of hysteresis to 0.025°C.

All these features work to maintain the Fluke 9171-X-256 Field Metrology Well’s conformity with the six critical components of performance outlined in the European Metrology Community’s EA-10/13 document, these include:

Calibrated display accuracy
Stability
Axial uniformity
Radial uniformity
Loading effects
Hysteresis

Conformity is not compromised by the instrument’s small, rugged and lightweight design. It can be used in a variety of worksites and is particularly well suited for use in hard-to-access places.

The Fluke 9171-X-256 Field Metrology Well includes a large, LCD display where the user can view the block temperature, cut-out temperature, stability criteria and the ramp rate. A numeric keypad and on-screen menus facilitate the user’s ability to adjust the aforementioned entities; access the Switch Test protocol that zeros in on the ‘dead-band’ for thermal switches, as well as tailor the four pre-programmed calibration tasks to his/her requirements. The user is able to enter up to eight temperature set points with ‘ramp and soak’ times between each one. He/she is also able to select the desired measurement unit (°C or °F) using the dedicated function button.

Also adding to this instrument’s adaptability is its ability to display menus in English, French or Chinese.

Further to this, using the Fluke 9171-X-256 Field Metrology Well’s RS-232 serial interface and Fluke’s Model 9930 Interface-it Software the operator is able to view results remotely from his/her PC. He/she is also able to access and adjust various settings and features allowing him/her to run calibrations remotely.

Alternatively, the Fluke 9171-X-256 Field Metrology Well can be used in conjunction with Fluke’s MET/ TEMP II Software in order to perform automatic calibrations of RTDs, thermocouples and thermistors.

The Fluke 9171-X-256 Field Metrology Well – Choice of Insert is ideal for calibrating a variety of temperature sensing instruments used in an array of industries. It offers the user the accuracy, stability and uniformity of a bath temperature calibrator with the practicality and functionality of a dry well tester.

Fluke 9171-X-256 Field Metrology Well – Choice of Insert Key Features

Optimised for calibrating temperature sensing instruments such as temperature probes, thermometers and thermal switches
Temperature range: -30°C to 155°C
Available in seven models with different disc inserts
Does NOT include integrated reference thermometry
Stability of ±0.005°C across its full range
Includes patent-pending Fluke proprietary electronics
Dual-zone control (analogue and digital)
Includes a well with a depth of 203mm
Homogenous temperature zone spanning 60mm from the bottom of the well
Axial uniformity of up to ±0.02°C (at 0°C)
Radial uniformity of ±0.01°C
Loading effects are reduced to as low as ±0.005°C
Deeper well ensures that all the temperature probe’s characteristics are accounted for and tested
The metrology well is calibrated using accredited, traceable PRTs
Proprietary electronics helps to maintain the instrument’s repeatability and display accuracy
Display accuracy of ±0.1°C
Hysteresis: 0.025°C
Conforms with the six critical components of performance as outlined by the EA-10/13
Small, rugged and lightweight design
Large, LCD display
Block temperature, cut-out temperature, stability criteria and ramp rate are all viewable via this display
Numeric keypad
Onscreen menus
Switch Test protocol zeros in on the ‘dead-band’ for thermal switches
Four pre-programmed calibration tasks
Up to eight set point temperatures with ‘ramp and soak’ times can be entered into these pre-programmed tasks
Function button for selecting between °C and °F
Menus can be displayed in English, French or Chinese
RS-232 interface
Supplied with Fluke’s Model 9930 Interface-It Software
RS-232 and Interface-it Software can be used to view results and operate the instrument remotely
Can be used with Fluke’s MET/ TEMP II Software (NOT included)
Ideal for calibrating a variety of temperature sensing instruments in an array of industries
Offers the stability, accuracy and uniformity of a bath temperature calibrator and the practicality and functionality of a dry well tester

What’s Included?

Your Choice of Fluke 9171-X-256 Field Metrology Well – Choice of Insert
Fluke Interface-It Software

£9,703.00

£11,643.60 inc vat

Free Delivery*

Made To Order

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Available Models Select An Option

Without an Insert 9171-DW-256 £9,703.00 Made to Order Insert A 9171-A-256 £9,998.00 Made to Order Insert B 9171-B-256 £9,998.00 Made to Order Insert C 9171-C-256 £9,998.00 Made to Order Insert D 9171-D-256 £9,998.00 Made to Order Insert E 9171-E-256 £9,998.00 Made to Order Insert F 9171-F-256 £9,998.00 Made to Order

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Technical Information

Specification

Fluke 9171-X-256 Field Metrology Well – Choice of Insert Technical Specifications

The Fluke 9171-X-256 Field Metrology Well is apart of Fluke's 917X series of Metrology Wells; please find below the technical specifications for the models included in this series.

Specifications	9170	9171	9172	9173
Range (at 23 °C ambient)	–45 °C to 140 °C (–49 °F to 284 °F)	–30 °C to 155 °C (–22 °F to 311 °F)	35 °C to 425 °C (95 °F to 797 °F)	50 °C to 700 °C† (122 °F to 1292 °F)
Display Accuracy	± 0.1 °C full range		± 0.1 °C: 35 °C to 100 °C ± 0.15 °C: 100 °C to 225 °C ± 0.2 °C: 225 °C to 425 °C	± 0.2 °C: 50 °C to 425 °C ± 0.25 °C: 425 °C to 660 °C
Stability	± 0.005 °C full range		± 0.005 °C: 35 °C to 100 °C ± 0.008 °C: 100 °C to 225 °C ± 0.01 °C: 225 °C to 425 °C	± 0.005 °C: 50 °C to 100 °C ± 0.01 °C: 100 °C to 425 °C ± 0.03 °C: 425 °C to 700 °C
Axial Uniformity (60 mm)	± 0.1 °C at –45 °C ± 0.04 °C at –35 °C ± 0.02 °C at 0 °C ± 0.07 °C at 140 °C	± 0.025 °C at –30 °C ± 0.02 °C at 0 °C± 0.07 °C at 155 °C	± 0.05 °C: 35 °C to 100 °C ± 0.1 °C: 100 °C to 225 °C ± 0.2 °C: 225 °C to 425 °C	± 0.1 °C: 50 °C to 100 °C ± 0.25 °C: 100 °C to 425 °C± 0.4 °C: 425 °C to 700 °C
Radial Uniformity	± 0.01 °C full range		± 0.01 °C: 35 °C to 100 °C ± 0.02 °C: 100 °C to 225 °C ± 0.025 °C: 225 °C to 425 °C	± 0.01 °C: 50 °C to 100 °C ± 0.025 °C: 100 °C to 425 °C ± 0.04 °C: 425 °C to 700 °C
Loading Effect (with a 6.35 mm reference probe and three 6.35 mm probes)	± 0.02 °C at –45 °C ± 0.005 °C at –35 °C ± 0.01 °C at 140 °C	± 0.005 °C at –30 °C ± 0.005 °C at 0 °C ± 0.01 °C at 155 °C	± 0.01 °C full range	± 0.02 °C at 425 °C ± 0.04 °C at 700 °C
Hysteresis	0.025 °C		0.04 °C	0.07 °C
Well Depth	160 mm (6.3 in)	203 mm (8 in)
Resolution	0.001 °C
Display	LCD, °C or °F, user-selectable
Key Pad	Ten key with decimal and +/- button. Function keys, menu key, and °C / °F key.
Cooling Time	44 min: 23 °C to –45 °C 19 min: 23 °C to –30 °C 19 min: 140 °C to 23 °C	30 min: 23 °C to –30 °C 25 min: 155 °C to 23 °C	220 min: 425 °C to 35 °C 100 min: 425 °C to 100 °C	235 min: 700 °C to 50 °C 153 min: 700 °C to 100 °C
Heating Time	32 min: 23 °C to 140 °C 45 min: –45 °C to 140 °C	44 min: 23 °C to 155 °C 56 min: –30 °C to 155 °C	27 min: 35 °C to 425 °C	46 min: 50 °C to 700 °C
Size (HxWxD)	366 x 203 x 323 mm (14.4 x 8 x 12.7 in)
Weight	14.2 kg (31.5 lb)	15 kg (33 lb)	13.2 kg (29 lb)	15 kg (33 lb)
Power	115 V ac (± 10 %), or 230 V ac (± 10 %), 50/60 Hz, 550 W		115 V ac (± 10 %), or 230 V ac (± 10 %), 50/60 Hz, 1025 W
Computer Interface	RS-232 Interface with 9930 Interface-it control software included
Traceable Calibration (NIST)	Data at –45 °C, 0 °C, 50 °C, 100 °C, and 140 °C	Data at –30 °C, 0 °C, 50 °C, 100 °C, and 155 °C	Data at 100 °C, 150 °C, 250 °C, 350 °C, and 425 °C	Data at 100 °C, 200 °C, 350 °C, 500 °C, and 660 °C
†Calibrated to 660 °C; reference thermometer recommended at higher temperatures.