` 7103 Micro-Bath Thermometer Calibrators - Alpha Controls & Instrumentation Inc.

Fluke Calibration

7103 Micro-Bath Thermometer Calibrators

Portable calibrator with extremely stable temperature baths

Starting At
$14,211.00 CAD
Normally ships in 4-6 Weeks

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Need portability and extreme stability? Fluke Calibration Micro-Baths have both. We invented the Micro-Bath. And, while many have tried to duplicate it, none of them use proprietary Fluke Calibration controllers, so none of them deliver performance like a Fluke Calibration bath. Micro-Baths can be used anywhere for any type of sensor. The 6102 weighs less than 4.5 kg (10 lb.), with the fluid. It’s lighter and smaller than most dry-wells, has a spill-proof lid, and is easier to carry than your lunch. You can take it where you need to go without carts or excessive effort. Micro-Baths can even be transported with the fluid in them.
Wherever you go with your Micro-Bath, you can count on its performance. Each model is stable to ±0.03 °C or better, depending on the fluid you use. Uniformity is ±0.02 °C or better for low uncertainties using a reference thermometer. Display accuracy has been improved to ±0.25 °C for quick calibrations without a reference thermometer. In short, you get the stability and precision of a liquid bath in a dry-well-sized package. Don’t be fooled by competitors who pour oil into a dry-well and call it a bath. Micro-Baths are maximized for true fluid-bath performance.
With a 48 mm (1.9-inch) diameter, 140 mm (5.5-inch) deep tank, a Micro-Bath can calibrate any type of sensor including short, square, or odd-shaped sensors. The problems of fit and immersion are virtually eliminated by using a fluid medium rather than a dry-block calibrator. Micro-Baths are perfect for liquid-in-glass and bimetal thermometers.
The 6102 has a temperature range from 35 °C to 200 °C, the 7102 covers –5 °C to 125 °C, and the 7103 extends from –30 °C to 125 °C. Stability, uniformity, and accuracy specifications cover the entire range for each bath, not just the best temperature.
All Micro-Baths have RS-232 ports and can be used with MET/TEMP II software (described on page 81). Also included are contacts to calibrate a thermal switch, eight set-point memory storage, ramp-rate adjust, and over-temperature safety cutout.
You may have noticed we haven’t touted our CFC-free refrigeration. Yes, cold Micro-Baths are CFC-free, and also compressor-free. That’s right—no heavy, noisy compressor to lug around. We achieve our temperature range and stability with only one moving part. This means more durability and less weight. Fluke Calibration manufactures and sells temperature calibration baths of every size and shape, and now we have the smallest and lightest baths in the industry to go with the dozens of other models we make.

• World’s smallest portable calibration baths
• Calibrates sensors of any size or shape
• Stability to +/- 0.015°C
• Ranges from -30°C - 200°C






35°C - 200°C (95°F - 392°F) 

-5°C - 125°C (23°F - 257°F) 

-30°C - 125°C (-22°F - 257°F) 


+/- 0.25 °C 


+/- 0.02°C at 100°C (oil 5013)
+/- 0.03°C at 200°C (oil 5013) 

+/- 0.015°C at -5°C (oil 5010)
+/- 0.03°C at 121°C (oil 5010) 

+/- 0.03°C at -25°C (oil 5010)
+/- 0.05°C at 125°C (oil 5010) 


+/- 0.02°C 



Operating Temperature 

5°C - 45°C 

Heating Time 

25°C - 200°C: 40 min 

25°C - 100°C: 30 min 

25°C - 100°C: 35 min 

Cooling Time 

200°C to 100°C: 35 min 

25°C to 0°C: 30 min 

25°C to -25°C: 45 min

Well Size 

64 mm dia. x 140 mm deep (2.5 in x 5.5 in) (working area is 48 mm [1.9 in] in diameter) 

Size (WxHxD) 

14 cm x 26 cm x 20 cm
(5.5 in x 10.38 in x 8 in) 

18 cm x 31 cm x 24 cm
(7.2 in x 12 in x 9.5 in) 

23 cm x 34 cm x 26 cm
(9 in x 13.2 in x 10.5 in) 


4.5 kg (10 lb) with fluid 

6.8 kg (15 lb) with fluid 

9.8 kg (22 lb) with fluid 


0.75 L (1.6 pints) 

0.75 L (1.6 pints) 

1.0 L (2.11 pints) 


115 VAC (+/- 10%), 2.3 A or 230 VAC (+/- 10%), 1.1 A, switchable, 50/60 Hz,
270 W 

115 VAC (+/- 10%), 1.8 A or 230 VAC (+/- 10%), 0.9 A, switchable, 50/60 Hz,
200 W 

94 - 234 VAC (+/- 10%), 50/60 Hz, 400 W 

Computer Interface 

RS-232 included with free Interface-it software 

NIST-Traceable Calibration 

Data at 50°C, 100°C, 150°C, and 200°C 

Data at -5°C, 25°C, 55°C, 90°C, and 121°C 

Data at -25°C, 0°C, 25°C, 50°C, 75°C, 100°C, and 125°C 

Commonly Used Fluids1 

Water (distilled)

Do not use Water 2

Water (distilled)

Mineral Oil

Mineral Oil

Mineral Oil

Silicone Oil

Silicone Oil

Silicone Oil



1 Refer to the Users Guide for information on selecting the right bath fluid for your application.

2 If the 7102 tank coating is damaged, corrosion will occur due to dissimilar metals in contact with water.

Interface cable kit used to connect the 754 with dry-wells and micro-baths
Normally ships in 4-6 Weeks
$303.00 CAD
Spare stir bar for the 6102, 7102, or 7103 micro-baths
Normally ships in 4-6 Weeks
$96.00 CAD
Spare test lid for the 6102, 7102, or 7103 micro-baths
Normally ships in 4-6 Weeks
Starting At
$271.00 CAD
Tank extension adapter for the 7102 micro-bath
Normally ships in 4-6 Weeks
$847.00 CAD
Full line of bath fluids covering temperature ranges from 100C - 550C
Normally ships in 4-6 Weeks
Starting At
$261.00 CAD
Carrying cases for the 6102, 7102, or 7103 micro-bath thermometer calibrators
Normally ships in 4-6 Weeks
Starting At
$1,572.00 CAD