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Fluke 1502A, 1504 Tweener Thermometer Readouts

Best performance thermometers in their price range

  • Two Tweeners to choose from—reading PRTs or thermistors
  • Best price/performance package

One of Fluke Calibration's best-selling products is the Tweener thermometer, and there’s a reason. No other company, not one, has a reference thermometer that comes close to the performance and features of the Tweener for anywhere near its price.

 

Description 

1502A Tweener PRT Readout

The Fluke 1502A Tweener (formerly Hart Scientific) features accuracy up to ±0.006 °C (the 1504 is even more accurate, up to ±0.002 °C). In addition, it reads 100-ohm, 25-ohm, and 10-ohm probes, has a resolution of 0.001 °C across its entire range, and is the smallest unit in its class. It also has an optional battery pack for completely portable operation.

Each Tweener is programmable to match a probe’s constants for maximum linearity and accuracy. All probe constants and coefficients are programmed through simple, front-panel keystrokes. Temperature is displayed in °C, °F, K, or resistance in ohms.

The 1502A accurately measures the resistance of the probe and then converts the resistance to a temperature value using its built-in algorithms.

For convenience, the 1502A reads the common industrial grade IEC-751 or “385 ALPHA RTD without any programming. Enter the actual R0 and ALPHA of the individual probe for increased accuracy. For maximum accuracy, use the ITS-90 formulas. The Tweener accepts the subranges 4 and 6 through 11.

ITS-90 formulas reside in the Tweener’s firmware. If your probe has been calibrated for any of the above subranges of the ITS-90, you simply enter the coefficients directly into your Tweener.

Each thermometer comes complete with an RS-232 interface for automation of temperature data collection, calibrations, or process control functions. An IEEE-488 interface is available as an option.

The 1502A is calibrated digitally using the front-panel buttons. You never have to open the box to calibrate it. This calibration protocol further reduces the cost of the 1502A. It goes where you go and works the way you want it to.

1504 Tweener Thermistor Readout

If you need more accuracy in a limited temperature range, the Model 1504 Tweener gives it to you as a thermistor readout. Thermistors are less fragile than PRTs and less likely to be impacted by mechanical shock. Thermistors are more sensitive to temperature, have faster response times, and come in many shapes for different applications.

Typical accuracy of a 1504 is ±0.002 °C with a resolution of 0.0001 °C.

Software

With our 9934 LogWare, both Tweener models may be used for real-time data acquisition. Collect data and analyze it graphically or statistically. Additionally, Tweeners may be used as reference thermometers with our MET/TEMP II software.

Battery pack

Want to take your Tweener on the road? Order Fluke Calibration's 9320A Battery Pack. Our battery gives you 36 hours between charges, allowing you to take your work wherever you need.

Calibration choices

Each Tweener and its accompanying probe (sold separately) have their own individual calibration reports. Overall system error can be calculated from the individual errors, rendering the added cost of system data unnecessary. However, for those requiring it, system data is available at two or more temperatures of your choice. (See Calibration Model 1929-X )

 

Specifications

1502A 1504
Temperature Range −200 °C to 962 °C (−328 °F to 1764 °F) Any thermistor range
Resistance Range 0 Ω to 400 Ω, auto-ranging 0 Ω to 1 MΩ, auto-ranging
Probe Nominal RTPW: 10 Ω to 100 Ω
RTD, PRT, or SPRT
Thermistors
Characterizations ITS-90 subranges 4, 6, 7, 8, 9, 10, and 11
IPTS-68: R0, a, d, a4, and c4
Callendar-Van Dusen: R0, a, d, and b
Steinhart-Hart thermistor polynomial
Callendar-Van Dusen: R0, a, d, and b
Resistance Accuracy
(ppm of reading)
0 Ω to 20 Ω: 0.0005 Ω
20 Ω to 400 Ω: 25 ppm
0 Ω to 5 KΩ: 0.5 Ω
5 KΩ to 200 KΩ: 100 ppm
200 KΩ to 1 MΩ: 300 ppm
Temperature Accuracy ±0.004 °C at −100 °C
±0.006 °C at 0 °C
±0.009 °C at 100 °C
±0.012 °C at 200 °C
±0.018 °C at 400 °C
±0.024 °C at 600 °C
±0.002 °C at 0 °C
±0.002 °C at 25 °C
±0.004 °C at 50 °C
±0.010 °C at 75 °C
±0.020 °C at 100 °C
(Using 10 KΩ thermistor sensor, a=0.04. Does not include probe uncertainty or characterization errors.)
Operating Temperature Range 16 °C to 30 °C 13 °C to 33 °C
Resistance Resolution 0 Ω to 20 Ω: 0.0001 Ω
20 Ω to 400 Ω: 0.001 Ω
0 Ω to 10 KΩ: 0.01 Ω
10 KΩ to 100 KΩ: 0.1 Ω
100 KΩ to 1 MΩ: 1 Ω
Temperature Resolution 0.001 °C 0.0001 °C
Excitation Current 0.5 and 1 mA, user selectable, 2 Hz 2 and 10 µA, automatically selected
Measurement Period 1 second
Digital Filter Exponential, 0 to 60 seconds time constant (user selectable)
Probe Connection 4-wire with shield, 5-pin DIN connector
Communications RS-232 serial standard
IEEE-488 (GPIB) optional
Display 8-digit, 7-segment, yellow-green LED; 0.5-inch-high characters
Power 115 VAC (±10 %), 50/60 Hz, 1 A, nominal
230 VAC (±10 %), 50/60 Hz, 1 A, nominal, specify
Size (HxWxD) 61 x 143 x 181mm (2.4 x 5.6 x 7.1 in)
Weight 1.0 kg (2.2 lb.)
Probes from Fluke Calibration 5615, 5627, 5626, 5628, 5622 5640-44, 5610-65
Calibration ISO 17025-accredited calibration provided
Temperature ranges and accuracy may be limited by the sensor you use.

 

 

 

 

Model Name Description
1502A

Tweener PRT Readout

1502A-2506

Tweener PRT Readout, with IEEE-488

1504

Tweener Thermistor Readout

1504-2506

Tweener Thermistor Readout, with IEEE-488

9934-S

LogWare, Single Channel, Single User

9934-M

LogWare, Single Channel, Multi User

Accessories common to all models:

Accessory Description
9301

Carrying Case, fits Tweener and 12 in probe

2505

Spare Connector

2508

Serial Cable Kit

1929-2

System Verification, PRT with Readout, Accredited.
Choose two temperature points, extra points at additional cost. Available temperature points are –197 °C, -80 °C , –39 °C, 0.01°C, 30 °C, 157 °C, 232 °C, 300 °C, 420 °C, 500 °C, 660 °C.

1929-5

System Verification, Thermistor with Readout, Accredited.
Choose two temperature points; extra points at additional cost. Available temperature points are -30 °C, -20 °C, -10 °C, 0 °C, 10 °C, 20 °C, 30 °C, 40 °C, 50 °C, 60 °C, 70 °C, 80 °C, 90 °C, 100 °C.

1930

System Calibration, PRT with Readout, Accredited.
Choose PRT temperature range for the calibration. Available temperature ranges are –200 °C to 500 °C, –200 °C to 420 °C, –80 °C to 420 °C, –40 °C to 420 °C, –40 °C to 232 °C, 0 °C to 420 °C.

1935

System Calibration, Thermistor with Readout, NVLAP-accredited
Choose thermistor temperature range for the calibration. Available temperature ranges are 100 °C span (6 points over span), 60 °C span (7 points over span), 100 °C span (11 points over span).

 

Product Manuals
application/pdf icon 1502A, 1504 Statement of Memory Volitilty (14.24 KB)
application/pdf icon 1502A Thermometer Readout Users Guide (English) (303.84 KB)
application/pdf icon 1504 Thermometer Readout Users Guide (English) (370.24 KB)
application/pdf icon 1504 Thermometer Readout Users Guide Supplement (136.56 KB)
Application Notes
application/pdf icon Calculating Calibration Uncertainties in an Automated Temperature Calibration System (426.88 KB)
application/pdf icon Establishment of a Secondary Temperature Calibration Laboratory (3.09 MB)
application/pdf icon Industrial temperature readout and probe selection guide (2.33 MB)
application/pdf icon Anleitung zur Auswahl von Temperaturanzeigegeräten und Messfühlern für den Industrieeinsatz (German) (585.2 KB)
application/pdf icon Guide de sélection des afficheurs et sondes de températures industrielles (French) (584.47 KB)
application/pdf icon Guía para la elección de sonda y lectura de temperatura industrial (Spanish) (581.27 KB)
application/pdf icon Руководство по выбору промышленных показаний и зонда температуры (Russian) (686.56 KB)
application/pdf icon Guia de seleção de instrumento de leitura e sonda de temperatura industrial (Portuguese) (580.6 KB)
application/pdf icon 工业测温仪和探头选型指南 (Chinese) (253.92 KB)
application/pdf icon Probe-to-Readout Adapter Guide (943.12 KB)
application/pdf icon Temperature Calibration Equipment: A Technician's Guide (1.62 MB)
application/pdf icon Temperature measurement and calibration: What every instrument technician should know (1.65 MB)
application/pdf icon Temperaturmessung und -kalibrierung (German) (650.54 KB)
application/pdf icon Mesure et étalonnage thermique (French) (655.57 KB)
application/pdf icon Medición y calibración de temperatura (Spanish) (651.42 KB)
Papers / Articles
Making the Right Choice for Your Temperature Readout
application/pdf icon PRT Temperature vs. Resistance Table (45.6 KB)

 

 

Shipping
This Item Ships from Fremantle, Perth, Western Australia   

      

Please allow 2 - 10 days for your order to arrive. Although Most Stocked Products will generally Ship Overnight.  We source products from all over the world to bring you epic offers and the lowest prices. This means sometimes you have to wait a little longer to get your order but it's always worth it!

Returns are easy, simply contact us for a returns number and send your item to our returns centre for fast processing. We'll get you a replacement or refund in a snap!

 

 

Here are 6 more great reasons to buy from us:

      

You get a full 30 days to return your item to us. If your product is faulty or damaged under manufacture warranty, simply send it back to us and we'll cheerfully replace it or fix the problem for you. 

Returns are easy, simply contact us for a returns number and send your item to our returns centre for fast processing. We'll get you a replacement or refund in a snap!

In the unlikely event that you find your item cheaper at another online store, just let us know and we'll beat the competitor's pricing hands-down.

We insist that you love everything you buy from us. If you're unhappy for any reason whatsoever, just let us know and we'll bend over backwards to make things right again.

Ordering from Laserman Technologies is 100% safe and secure so you can rest easy. Your personal details are never shared, sold or rented to anyone either.
Laserman the Best Laser Level, Pipe Laser and Laser Measuring Warranties in the Business - Now thats unbeatable value !!.

 

 

Fluke 1502A, 1504 Tweener Thermometer Readouts

Best performance thermometers in their price range

  • Two Tweeners to choose from—reading PRTs or thermistors
  • Best price/performance package

One of Fluke Calibration's best-selling products is the Tweener thermometer, and there’s a reason. No other company, not one, has a reference thermometer that comes close to the performance and features of the Tweener for anywhere near its price.

 

Description 

1502A Tweener PRT Readout

The Fluke 1502A Tweener (formerly Hart Scientific) features accuracy up to ±0.006 °C (the 1504 is even more accurate, up to ±0.002 °C). In addition, it reads 100-ohm, 25-ohm, and 10-ohm probes, has a resolution of 0.001 °C across its entire range, and is the smallest unit in its class. It also has an optional battery pack for completely portable operation.

Each Tweener is programmable to match a probe’s constants for maximum linearity and accuracy. All probe constants and coefficients are programmed through simple, front-panel keystrokes. Temperature is displayed in °C, °F, K, or resistance in ohms.

The 1502A accurately measures the resistance of the probe and then converts the resistance to a temperature value using its built-in algorithms.

For convenience, the 1502A reads the common industrial grade IEC-751 or “385 ALPHA RTD without any programming. Enter the actual R0 and ALPHA of the individual probe for increased accuracy. For maximum accuracy, use the ITS-90 formulas. The Tweener accepts the subranges 4 and 6 through 11.

ITS-90 formulas reside in the Tweener’s firmware. If your probe has been calibrated for any of the above subranges of the ITS-90, you simply enter the coefficients directly into your Tweener.

Each thermometer comes complete with an RS-232 interface for automation of temperature data collection, calibrations, or process control functions. An IEEE-488 interface is available as an option.

The 1502A is calibrated digitally using the front-panel buttons. You never have to open the box to calibrate it. This calibration protocol further reduces the cost of the 1502A. It goes where you go and works the way you want it to.

1504 Tweener Thermistor Readout

If you need more accuracy in a limited temperature range, the Model 1504 Tweener gives it to you as a thermistor readout. Thermistors are less fragile than PRTs and less likely to be impacted by mechanical shock. Thermistors are more sensitive to temperature, have faster response times, and come in many shapes for different applications.

Typical accuracy of a 1504 is ±0.002 °C with a resolution of 0.0001 °C.

Software

With our 9934 LogWare, both Tweener models may be used for real-time data acquisition. Collect data and analyze it graphically or statistically. Additionally, Tweeners may be used as reference thermometers with our MET/TEMP II software.

Battery pack

Want to take your Tweener on the road? Order Fluke Calibration's 9320A Battery Pack. Our battery gives you 36 hours between charges, allowing you to take your work wherever you need.

Calibration choices

Each Tweener and its accompanying probe (sold separately) have their own individual calibration reports. Overall system error can be calculated from the individual errors, rendering the added cost of system data unnecessary. However, for those requiring it, system data is available at two or more temperatures of your choice. (See Calibration Model 1929-X )

 

Specifications

1502A 1504
Temperature Range −200 °C to 962 °C (−328 °F to 1764 °F) Any thermistor range
Resistance Range 0 Ω to 400 Ω, auto-ranging 0 Ω to 1 MΩ, auto-ranging
Probe Nominal RTPW: 10 Ω to 100 Ω
RTD, PRT, or SPRT
Thermistors
Characterizations ITS-90 subranges 4, 6, 7, 8, 9, 10, and 11
IPTS-68: R0, a, d, a4, and c4
Callendar-Van Dusen: R0, a, d, and b
Steinhart-Hart thermistor polynomial
Callendar-Van Dusen: R0, a, d, and b
Resistance Accuracy
(ppm of reading)
0 Ω to 20 Ω: 0.0005 Ω
20 Ω to 400 Ω: 25 ppm
0 Ω to 5 KΩ: 0.5 Ω
5 KΩ to 200 KΩ: 100 ppm
200 KΩ to 1 MΩ: 300 ppm
Temperature Accuracy ±0.004 °C at −100 °C
±0.006 °C at 0 °C
±0.009 °C at 100 °C
±0.012 °C at 200 °C
±0.018 °C at 400 °C
±0.024 °C at 600 °C
±0.002 °C at 0 °C
±0.002 °C at 25 °C
±0.004 °C at 50 °C
±0.010 °C at 75 °C
±0.020 °C at 100 °C
(Using 10 KΩ thermistor sensor, a=0.04. Does not include probe uncertainty or characterization errors.)
Operating Temperature Range 16 °C to 30 °C 13 °C to 33 °C
Resistance Resolution 0 Ω to 20 Ω: 0.0001 Ω
20 Ω to 400 Ω: 0.001 Ω
0 Ω to 10 KΩ: 0.01 Ω
10 KΩ to 100 KΩ: 0.1 Ω
100 KΩ to 1 MΩ: 1 Ω
Temperature Resolution 0.001 °C 0.0001 °C
Excitation Current 0.5 and 1 mA, user selectable, 2 Hz 2 and 10 µA, automatically selected
Measurement Period 1 second
Digital Filter Exponential, 0 to 60 seconds time constant (user selectable)
Probe Connection 4-wire with shield, 5-pin DIN connector
Communications RS-232 serial standard
IEEE-488 (GPIB) optional
Display 8-digit, 7-segment, yellow-green LED; 0.5-inch-high characters
Power 115 VAC (±10 %), 50/60 Hz, 1 A, nominal
230 VAC (±10 %), 50/60 Hz, 1 A, nominal, specify
Size (HxWxD) 61 x 143 x 181mm (2.4 x 5.6 x 7.1 in)
Weight 1.0 kg (2.2 lb.)
Probes from Fluke Calibration 5615, 5627, 5626, 5628, 5622 5640-44, 5610-65
Calibration ISO 17025-accredited calibration provided
Temperature ranges and accuracy may be limited by the sensor you use.

 

 

 

 

Model Name Description
1502A

Tweener PRT Readout

1502A-2506

Tweener PRT Readout, with IEEE-488

1504

Tweener Thermistor Readout

1504-2506

Tweener Thermistor Readout, with IEEE-488

9934-S

LogWare, Single Channel, Single User

9934-M

LogWare, Single Channel, Multi User

Accessories common to all models:

Accessory Description
9301

Carrying Case, fits Tweener and 12 in probe

2505

Spare Connector

2508

Serial Cable Kit

1929-2

System Verification, PRT with Readout, Accredited.
Choose two temperature points, extra points at additional cost. Available temperature points are –197 °C, -80 °C , –39 °C, 0.01°C, 30 °C, 157 °C, 232 °C, 300 °C, 420 °C, 500 °C, 660 °C.

1929-5

System Verification, Thermistor with Readout, Accredited.
Choose two temperature points; extra points at additional cost. Available temperature points are -30 °C, -20 °C, -10 °C, 0 °C, 10 °C, 20 °C, 30 °C, 40 °C, 50 °C, 60 °C, 70 °C, 80 °C, 90 °C, 100 °C.

1930

System Calibration, PRT with Readout, Accredited.
Choose PRT temperature range for the calibration. Available temperature ranges are –200 °C to 500 °C, –200 °C to 420 °C, –80 °C to 420 °C, –40 °C to 420 °C, –40 °C to 232 °C, 0 °C to 420 °C.

1935

System Calibration, Thermistor with Readout, NVLAP-accredited
Choose thermistor temperature range for the calibration. Available temperature ranges are 100 °C span (6 points over span), 60 °C span (7 points over span), 100 °C span (11 points over span).

 

Product Manuals
application/pdf icon 1502A, 1504 Statement of Memory Volitilty (14.24 KB)
application/pdf icon 1502A Thermometer Readout Users Guide (English) (303.84 KB)
application/pdf icon 1504 Thermometer Readout Users Guide (English) (370.24 KB)
application/pdf icon 1504 Thermometer Readout Users Guide Supplement (136.56 KB)
Application Notes
application/pdf icon Calculating Calibration Uncertainties in an Automated Temperature Calibration System (426.88 KB)
application/pdf icon Establishment of a Secondary Temperature Calibration Laboratory (3.09 MB)
application/pdf icon Industrial temperature readout and probe selection guide (2.33 MB)
application/pdf icon Anleitung zur Auswahl von Temperaturanzeigegeräten und Messfühlern für den Industrieeinsatz (German) (585.2 KB)
application/pdf icon Guide de sélection des afficheurs et sondes de températures industrielles (French) (584.47 KB)
application/pdf icon Guía para la elección de sonda y lectura de temperatura industrial (Spanish) (581.27 KB)
application/pdf icon Руководство по выбору промышленных показаний и зонда температуры (Russian) (686.56 KB)
application/pdf icon Guia de seleção de instrumento de leitura e sonda de temperatura industrial (Portuguese) (580.6 KB)
application/pdf icon 工业测温仪和探头选型指南 (Chinese) (253.92 KB)
application/pdf icon Probe-to-Readout Adapter Guide (943.12 KB)
application/pdf icon Temperature Calibration Equipment: A Technician's Guide (1.62 MB)
application/pdf icon Temperature measurement and calibration: What every instrument technician should know (1.65 MB)
application/pdf icon Temperaturmessung und -kalibrierung (German) (650.54 KB)
application/pdf icon Mesure et étalonnage thermique (French) (655.57 KB)
application/pdf icon Medición y calibración de temperatura (Spanish) (651.42 KB)
Papers / Articles
Making the Right Choice for Your Temperature Readout
application/pdf icon PRT Temperature vs. Resistance Table (45.6 KB)

 

 

Shipping
This Item Ships from Fremantle, Perth, Western Australia   

      

Please allow 2 - 10 days for your order to arrive. Although Most Stocked Products will generally Ship Overnight.  We source products from all over the world to bring you epic offers and the lowest prices. This means sometimes you have to wait a little longer to get your order but it's always worth it!

Returns are easy, simply contact us for a returns number and send your item to our returns centre for fast processing. We'll get you a replacement or refund in a snap!

 

 

Here are 6 more great reasons to buy from us:

      

You get a full 30 days to return your item to us. If your product is faulty or damaged under manufacture warranty, simply send it back to us and we'll cheerfully replace it or fix the problem for you. 

Returns are easy, simply contact us for a returns number and send your item to our returns centre for fast processing. We'll get you a replacement or refund in a snap!

In the unlikely event that you find your item cheaper at another online store, just let us know and we'll beat the competitor's pricing hands-down.

We insist that you love everything you buy from us. If you're unhappy for any reason whatsoever, just let us know and we'll bend over backwards to make things right again.

Ordering from Laserman Technologies is 100% safe and secure so you can rest easy. Your personal details are never shared, sold or rented to anyone either.
Laserman the Best Laser Level, Pipe Laser and Laser Measuring Warranties in the Business - Now thats unbeatable value !!.

 

 

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