1. Product Presentation
T12 Thermometer

2. T12 Contents Introduction Key features and USP Specifications
Applications
Competitors
Target markets
Sales Promotion
June 2017
© MBW Calibration

3. T12 Introduction Multi-Channel Reference Thermometer
Twelve channel temperature measurement
High precision, stability and reproducibility
Internal reference resistors
PC software for system control and data acquisition
Simple to configure and use
RS-232 serial interface
SCS calibration option
June 2017
© MBW Calibration

4. T12 USP Fast 12 channel measurement
Uncertainties at a level that is neglectible in humidity measurement
Can be used as reference bridge as well as scanner for validation work
Perfect combination with Dew Point Mirrors through GeckoR2
Live relative humidity calculation
Temperature probe information can be stored locally or synchronized with server drive
17025 Calibration in resistance value and/or temperature
June 2017
© MBW Calibration

5. How does it work? Selectable current (0.33 / 0.67 / 1 mA)
4-wire measurement
Current +/-
Known resistance values on hidden channels
Linear fit to measurand A/D value
June 2017
© MBW Calibration

6. How does it work?
June 2017
© MBW Calibration

7. How does it work?
June 2017
© MBW Calibration

8. How does it work?
June 2017
© MBW Calibration

9. T12 Specifications Measuring Ranges Temperature Resistance
°C (PRT Pt-100)
0…380 Ω
Performance
Resolution
Accuracy (T12 only)
Temperature coefficient
for the range of -200…250 °C
0.1 mK
≤ ± 2 23 °C (95% confidence level, 1 year)
0.1 mK/ °C
June 2017
© MBW Calibration

10. Why performance from -200 … 250 °C ?
Usual range for all our humidity applications
Tested by NSAI National Metrology Laboratory, Ireland
Input Range 16.8 to 140 Ω Evaluated range.
Repeatability Ω Repeatability 0.5 mK
Linearity Ω
Long Term Stability Ω /year Evaluated at start and end of seven month period, after exposure to temperature
extremes (5°C to 40°C).
Long Term Stability 0.18 mK/year
Temperature Coefficient 0.05 ± mK/ °C Based on device exposure from 5°C to 40°C.
RMS Measurement Noise Ω
June 2017
© MBW Calibration

11. History data from MBW lab T12
June 2017
© MBW Calibration

12. T12 Applications Climatic Chamber Validation part of the IEC 60068
Requires nine sensors for temperature measurement
June 2017
© MBW Calibration

13. T12 Applications Climatic Chamber Validation
Combine with dew point mirror for relative humidity values
June 2017
© MBW Calibration

14. T12 Applications Temperature calibration Calibration by comparison
Validation of fluid baths
June 2017
© MBW Calibration

15. T12 Applications Ice Point Check your working standard
Check your T12 probes
Simple, but precise! (<5 mK)
June 2017
© MBW Calibration

16. T12 Maintenance T12: only calibration PRT
Calibration using a set of fixed resistors
PRT
Ice Point Check
Internal comparison
Internal or external recalibration
June 2017
© MBW Calibration

17. T12 Competitors
Fluke (Hart) Blackstack
June 2017
© MBW Calibration

18. T12 Competitors
ASL F200
June 2017
© MBW Calibration

19. T12 Promotion Opportunity Development:
Development divisions, validation of sensors and calibration setups
Combination with 473 -> Chamber validation
June 2017
© MBW Calibration