Techne Secondary Standard Probe's 
 Buy online today!
 

     Our PRT's offers proven and reliable performance for your critical temperature measurements. They can be used with our Tecal Accu-Temp indicator or any comparable unit. All models include a carrying case and ITS-90 calibration (NIST traceable) certificate with coefficients and resistance vs. temperature table. Our working standard probes are a good choice for use in verifying, calibrating and monitoring the temperature of  calibration baths, furnaces, fluidized baths, dry block calibrators, incubators, freezers, water baths, thermal validation systems, comparison calibrations of other sensors or for any other temperature application where a high level of accuracy and reliability are required.  All probes shown are fully annealed to remove any instability for longer term accuracy and performance throughout the operating range.
 

Choose one for your application

Probe size (see sketch) Calibrated
Temperature range		 Catalog #

Description
1/4" OD (A) x 12"L (B) w/ 72"(C) 4 wire lead -50 to 350°C 7002617 WSP350 Probe w/ carrying case. Includes ITS90 calibration with
a8, b8, a4, b4, Rtpw coefficients and R vs T table
1/4" OD (A) x 15"L (B) w/72" (C) 4 wire lead -196 to 660°C 7002660 WSP660 Probe w/ carrying case. Includes ITS90 calibration with
a7, b7, c7, a4, b4, Rtpw coefficients and R vs T table
1/8" OD (A) x 12"L (B) w/72" (C) 4 wire lead -50 to 350°C 7002809 WSP350 Probe w/ carrying case. Includes ITS90 calibration with
a8, b8, a4, b4, Rtpw coefficients and R vs T table
6mm OD (A) x 15"L (B) w/72" (C) 4 wire lead -196 to 660°C 7002800 WSP660 Probe w/ carrying case. Includes ITS90 calibration with
a7, b7, c7, a4, b4, Rtpw coefficients and R vs T table

 

Technical details for each model

Catalog # 7002617 7002660 7002809 7002800
Temperature coefficient
 Ω /Ω /° C minimum		 0.003924 0.003924 0.003924 0.003924
Stability

Meets IEC stability specifications after 250 hours exposure to extremes of temperature range. Typical drift is less than 0.025°C at 0°C.

 R0 typical drift less than 0.020°C after 500 hours at 660°C Meets IEC stability specifications after 250 hours exposure to extremes of temperature range. Typical drift is less than 0.025°C at 0°C. Meets IEC stability specifications after 250 hours exposure to extremes of temperature range. Typical drift is less than 0.025°C at 0°C.
Repeatability Meets IEC requirements. Typical shift less than 0.025°C at 0°C after ten cycles over range. R0 typical drift less than 0.010°C after 10 cycles over the range. Meets IEC requirements. Typical shift less than 0.025°C at 0°C after ten cycles over range. Meets IEC requirements. Typical shift less than 0.025°C at 0°C after ten cycles over range.
Time constant (in water flowing at 3ft/second) 6 seconds N/A 2 seconds 10 seconds
Self heating (mV/° C in water flowing at 3ft/second) 35mW N/A 75mW 50mW
Calibrated Measurement uncertainty K=2 -50°C ±0.028°C
-20°C ±0.028°C
0°C ±0.023°C
100°C ±0.030°C
350°C ±0.037°C		 -196°C ±0.054°C
-38°C ±0.028°C
0°C ±0.023°C
232°C ±0.030°C
420°C ±0.037°C
660°C ±0.059°C		 -50°C ±0.028°C
-20°C ±0.028°C
0°C ±0.023°C
100°C ±0.030°C
350°C ±0.037°C		 -196°C ±0.054°C
-38°C ±0.028°C
0°C ±0.023°C
232°C ±0.030°C
420°C ±0.037°C
660°C ±0.059°C
ORDERING INFORMATION: Catalog number: 7002617 
List Price: $445
Web Price: $422.75
Catalog number: 7002660 
List Price: $913
Web Price: $867.35
Catalog number: 7002809 
List Price: $445
Web Price: $422.75
Catalog number: 7002800 
List Price: $985
Web Price: $935.75

Home | Temperature Calibration Products | Online Store | News
Contact Us | About Us
Copyright © 2007 Techne® Incorporated