Hart Scientific 5611 Secondary Reference Thermistor Probes

Click image to enlarge Hart Scientific 5611A-11B

Features: Range 0°C to 100°C  Short-term accuracy to ±0.015°C; one year drift < ±0.01°C  Includes NIST-traceable calibration from manufacturer; accredited Hart calibration optional  We ship Hart Scientific products only within the United States and United States territories. This DOES include US military working abroad. If you have any questions about this policy please call - 1-877-742-8378.

Hundreds of thousands of thermistors are sold every year, but only a few have the stability necessary for use as high-accuracy thermometry standards. If you’re looking for economical lab-grade thermistor probes for accurate work across a narrow temperature range, Hart’s Secondary Reference Series thermistor probes are the best you can buy. A thermistor offers several advantages over a PRT as a reference thermometer in some applications. First, there’s size. A thermistor is much smaller than a PRT element, and so it can be built into a much larger variety of probe shapes and sizes. The smaller element contributes to much faster response times, too. If your application involves frequent handling, a thermistor is less susceptible to mechanical shock than a PRT. The bottom line may be better accuracy in fieldwork. Higher base resistance and larger resistance coefficients make it easier to achieve precision readings. Better resolution and accuracy are possible for a lower cost. These probes come in a complete assembly ready for use, and they make an excellent match with the uncertainties of our thermometer readouts: the 1504 Tweener, the 1521 Tweener and 1522 Handheld Thermometers, the 1529 Chub-E4, the 1560 Black Stack, and the 1575A and 1590 Super-Thermometers. These probes are accurate to ±0.015°C, and each comes with a NIST-traceable calibration and a resistance versus temperature table printed in 0.1°C increments. The Secondary Reference Series Thermistors cover the temperature range of 0°C to 100°C. No other sensors can match the accuracy and price combination of these high-accuracy thermistor probes. Try one and you’ll agree.

Model	Description	List Price	Sale Price
5611A-11B	Probe, Silicone Bead Thermistor		$546.00
5611A-11D	Probe, Silicone Bead Thermistor		$546.00
5611A-11G	Probe, Silicone Bead Thermistor		$546.00
5611A-11I	Probe, Silicone Bead Thermistor		$546.00
5611A-11J	Probe, Silicone Bead Thermistor		$546.00
5611A-11L	Probe, Silicone Bead Thermistor		$546.00
5611A-11M	Probe, Silicone Bead Thermistor		$546.00

	5610	5611	5665	5674
Resistance	Nominal 10,000Ω at 25°C			Nominal 10,000Ω at 25°C
Range	0°C to 100°C			0°C to 70°C
Calibration	R vs. T table with 0.1°C increments, interpolation equation furnished			Optionally available from Hart.
Calibration Uncertainty	Table and equation are accurate to ±0.01°C
Drift	Better than ±0.01°C per year			Better than ±0.02°C per year
Repeatability	Better than ±0.005°C			Better than ±0.07°C
Size and Construction	See Table
Termination	Specify when ordering.			Specify when ordering

 

Model		Applications	Construction
5610-6		Immersion, calibration standards	Stainless Steel Diameter: 0.125" Sheath Length: 6" Lead Length: 6'
5610-9			Stainless Steel Diameter: 0.125" Sheath Length: 9" Lead Length: 6'
5611		Immersion in most liquids (except silicone oils), pharmaceutical, faster response	2-Wire Silicone Coated Diameter: 0.070" Sheath Length: 0.55" Lead Length: 6'
5665		Liquid and soil immersion	Stainless Steel Diameter: 0.125" Sheath Length: 3" Lead Length: 20'
5674		Immersion, calibration standards	Stainless Steel Diameter: 0.188" Sheath Length: 9"; Lead Length: 4'

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