Home

What's New

Products

Support

U.S. Cal Lab

European Cal Lab

Accreditation

Training

Events

Publications

Contact Hart

International

Links

Fun Stuff

Site Contents

Micro-Baths 

Model 

Range 

Accuracy 

Description/Features 

6102
Micro-Bath 

35 °C to 200 °C 
95 °F to 392 °F 

±0.25 °C 

World’s smallest calibration bath. 
Stability to ±0.02 °C. 
Stirred 2.5-inch-diameter tank. 

7102
Micro-Bath 

–5 °C to 125 °C 
23 °F to 257 °F 

±0.25 °C 

Portable bath to –5 °C. 
No refrigeration—solid-state cooling. 
Stability to ±0.015 °C. 

7103
Micro-Bath 

–30 °C to 125 °C 
–22 °F to 257 °F 

±0.25 °C 

Ultracold Micro-Bath reaches –30 °C. 
No refrigeration or external cooling needed. 
Stability to ±0.03 °C. 

Handheld dry-wells 

Model 

Range 

Accuracy 

Description/Features 

9100S
Handheld
Dry-Well 

35 °C to 375 °C 
95 °F to 707 °F 

±0.25 °C at 100 °C 
±0.5 °C at 375 °C 

World’s smallest dry-well. 
Fixed block with 4-inch well depth. 
Four hole patterns available. 

9102S
Handheld
Dry-Well 

–10 °C to 122 °C 
14 °F to 252 °F 

±0.25 °C 

Handheld unit cools to –10 °C. 
Two 0.5-inch-diameter, removable sleeves. 

Field dry-wells 

Model 

Range 

Accuracy 

Description/Features 

9009
Dual-Block Calibrator 

–15 °C to 350 °C 
5 °F to 662 °F 

Cold block: ±0.2 °C 
Hot block: ±0.6 °C 

Dual-block industrial dry-well. 
Each block has two wells with removable sleeves. 
Water- and air-tight enclosure. 

9103
Field Dry-Well 

–25 °C to 140 °C 
–13 °F to 284 °F 

±0.25 °C 

Small, lightweight field calibrator reaches –25 °C. 
Stability to ±0.02 °C. 
Calibrates up to six probes at once. 

9140
Field Dry-Well 

35 °C to 350 °C 
95 °F to 662 °F 

±0.5 °C 

Portable field calibrator. 
Choose from four multi-hole, removable inserts. 

9141
Field Dry-Well 

50 °C to 650 °C 
122 °F to 1202 °F 

±0.5 °C to 400 °C 
±1 °C to 650 °C 

High-temp field calibrator. 
Interface-it software and RS-232 included. 
Extremely small and fast for temperature range. 

3125
Surface Calibrator 

35 °C to 400 °C 
95 °F to 752 °F 

±0.5 °C to 200 °C
±1.0 °C to 400 °C 

Calibrates surface sensors. 
Plate stability of ±0.3 °C. 

Infrared calibrators 

NEW! Precision Infrared Calibrators

Model 

Range 

Accuracy 

Description/Features 

Model 

Range 

Accuracy 

Description/Features 

9132 

50 °C to 500 °C 
122 °F to 932 °F 

±0.5 °C at 100 °C 
±0.8 °C at 500 °C 

Certifies most handheld pyrometers. 
Short heating and cooling times. 

9133 

–30 °C to 150 °C  
–22 °F to 302 °F 

±0.4 °C 

Calibrates at cold temperatures. 
Gets to desired temperature quickly. 

9135
3-Pt. IR Calibrator 

50 °C, 100 °C, 150 °C 
122 °F, 212 °F, 302 °F 

±1 °C 

Easiest to use IR calibrator. 

Three set-points—all reached quickly. 

Metrology  Wells 

Model 

Range 

Accuracy 

Description/Features 

9170 

–45 °C to 140 °C 
(–49 °F to 284 °F) 

±0.1 °C 

Best-performing industrial heat sources (accuracy, stability, uniformity) in the world. 
Immersion depth to 203 mm (8 in). 
Optional ITS-90 reference input reads PRTs to ±0.006 °C. 
Temperature range from –45 °C to 700 °C. 

9171 

–30 °C to 155 °C 
(–22 °F to 311 °F) 

±0.1 °C 

9172 

35 °C to 425 °C 
(95 °F to 797 °F) 

±0.1 °C at 100 °C 
±0.15 °C at 225 °C 
±0.2 °C at 425 °C 

9173 

50 °C to 700 °C 
(122 °F to 1292 °F) 

±0.2 °C at 425 °C 
±0.25 °C at 660 °C 

Zero point dry-well 

Model 

Range 

Stability 

Description/Features 

9101 

0 °C 
32 °F 

±0.05 °C 

Solid-state cooling. 
Replaces messy ice baths—easy to operate. 
Three wells, each 6 inches deep. 

Dual block dry-well 

Model 

Range 

Stability 

Description/Features 

9011 
Hot Block 

50 °C to 670 °C 
122 °F to 1238 °F 

±0.15 °C at 100 °C 
±0.65 °C at 600 °C 

Combined ranges from –30 °C to 670 °C. 
1 unit – 2 blocks. 
Two independent temperature controllers (hot and cold side). 
Stability: ±0.01 °C. 
Multi-hole inserts hold up to 8 probes at once. 

Cold Block 

–30 °C to 140 °C 
–22 °F to 284 °F 

±0.25 °C (insert wells) 
±0.65 °c (fixed wells) 

Portable lab dry-wells 

Model 

Range 

Stability 

Description/Features 

9007 

–40 °C to 140 °C 
–40 °F to 284 °F 

±0.15 °C 

 –40 °C with solid-state Peltier cooling. 
Rugged truck-, plane-, and sea-worthy enclosure. 

Furnaces 

Model 

Range 

Stability 

Description/Features 

9150 Thermocouple Furnace 

150 °C to 1200 °C 
302 °F to 2192 °F 

±0.5 °C 

Benchtop thermocouple furnace. 
Interchangeable insert sleeves. 
Fast heating and cooling. 

9112B Calibration Furnace 

300 °C to 1100 °C 
572 °F to 2012 °F 

±0.1 °C 

Standard block fits five probes. 
Accommodates long probes. 
Gradients less than ±0.3 °C at 1000 °C.