Metrológia teploty

Hart Scientific 3125 - Surface Calibrator

Hart Scientific 3125 - Surface Calibrator

  • Calibrates surface sensors up to 400°C
  • Uses Hart 2200 Controller for excellent accuracy and stability
  • NIST-traceable calibration included

More details

Dostupnosť: Na objednávku

Surface probes are difficult to calibrate because it’s hard to find a flat, heated surface that’s stable and uniform. Hart’s new Model 3125 Surface Dry-Well takes advantage of our proprietary 2200 Temperature Controller and gives you the best possible conditions for calibrating surface sensors.

Why buy a non-temperature calibration device designed for test tube sterilization or PC board repair when you can have a true calibration instrument? The 3125 has a uniform surface temperature and reaches temperatures as high as 400°C.

The test surface is milled aluminum for an absolutely smooth and true calibration work area with maximum thermal conductivity. The 12.25-square-inch test surface is large enough to calibrate more than one sensor at a time. The 3125 can be used with a reference surface sensor or PRT. PRTs (3/16" diameter, such as the 5615) may be inserted through a drilled hole into the center of the block for use as reference thermometers or for easy recalibration of the unit’s display.

With an accuracy of ±0.5 °C to 200 °C and ±1 °C to 400 °C, you can calibrate almost any surface probe, thermistor, thin film sensor, RTD, thermocouple, ribbon sensor, or surface mount cutouts, fuses, and switches. Stability is within ±0.3 °C at 400 °C and uniformity within the center three inches of the surface is ±0.6 °C at 200 °C. Don’t buy “make-do” hot plates when you can have a legitimate calibration tool. 


Temperature Range 

35 °C to 400 °C 
(95 °F to 752 °F) 

Display Accuracy 

±0.5 °C to 200 °C 
±1.0 °C to 400 °C 


±0.2 °C to 300 °C 
±0.3 °C to 400 °C 


0.01 ° 


±0.3 °C at 100 °C
±0.6 °C at 200 °C
±0.9 °C at 300 °C
±1.4 °C at 400 °C 

Heating Time 

25 °C to 400 °C: 22 minutes 

Cooling Time 

400 °C to 100 °C: 65 minutes 

Stabilization Time 

8 minutes 


Hart Model 2200, microprocessor based, with RS-232


 °C or  °F, switchable 


RTD, 100W 


325-watt, solid-state controlled 

Surface Plate 

6061 aluminum; top surface machine finished to 0.0008 mm (0.000032 in), 96 mm (3.8 in) diameter accessible 


115 VAC (±10 %), 2.8 A or 230 VAC (±10 %), 1.4 A, specify, 50/60 Hz, 325 W 


3.2 kg (7 lb.) with 2200 Controller 

NIST-Traceable Calibration 

Data at 50 °C, 120 °C, 190 °C, 260 °C, 330 °C, and 400 °C 

Ordering Information


Surface Calibrator, (includes detachable Hart Model 2200 Controller) 


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