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TN
701R |
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The TN701R differential
thermometer has two inputs enabling both direct and differential
temperature measurement. It offers precision measurements to an accuracy of +/-0.01°C or
better (when used with ITS-90 Pt100 or Pt25 sensor) with resolution at an
impressive 0.01°C (over the entire range -180 to +650°C). In addition the
self-adaptative linearization mechanism allows to
account for probe characteristics automatically during calibration by a
National Laboratory (with a residual non-linearity better than 0.002°C). Other key
performances are: - Long-term
drift < 0.01°C +25ppm of Rdg (per year) - Short-term
stability (jitter) < 0.2 digit ( = 0.002°C) - Temperature
coefficient < 2 ppm/°C (max.) |
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Technical specifications |
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q Accuracy |
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Accuracy (after calibration at two fixed points) |
0.01°C |
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q Measurement range |
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Temperature measurement range |
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q Connection between probe and
thermometer |
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Probe type |
2 x Pt100 (1 per channel), ITS90 |
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Measurement current |
1 mA DC |
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Connection |
4-wire (with shield) |
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Lead wire effect |
0.0001°C/ W (10 W per lead) |
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NMRR |
> 120 dB (at 50 Hz and above) |
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CMRR |
> 140 dB (from 0 to 60 Hz) |
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q Resolution |
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Thermometer resolution |
0.01°C |
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q Input channels |
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Number of measurement channels |
2 x Direct temperature measurements Differential temperature measurement |
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Channel selection |
With 1 key and 3 [STATUS] red LEDs |
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q Probe linearization |
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Linearization characteristics |
Based on ITS-90 Self-adaptative & automatic |
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Residual non-linearity |
< 0.002°C |
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q Stability performances |
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Long-term drift |
< 0.01°C +25ppm of Rdg (per year) |
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Short-term stability (jitter) |
0.2 LSD ( = 0.002°C) |
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q Auto-zero |
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Auto-zero residual |
< 0.0005°C/°C (at the |
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q Temperature coefficient |
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Temperature coefficient |
<2 ppm/°C (max.) |
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q Warm-up |
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Warm-up time |
15 min. for optimum accuracy |
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q Adjustment |
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Adjustment of system Zero & Full-Scale (2 channels) |
By means of 3 front-panel keys |
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Channel selection |
Using 1 key and 3 [STATUS] red LEDs |
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q Display |
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Display |
Easy-to read display with 6 digits |
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q Communication |
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Communication |
RS232 serial
mode (ASCII-characters) , isolated command circuit |
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q Power |
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Power |
110-220VAC, 50-60Hz, 1Watt |
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q Physical characteristics |
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Case |
Extruded aluminium case (EMC) Full electrical continuity |
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Version |
Laboratory version ( |
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Dimensions |
9.1" x 3.3" x 7.5" (inches) (mm: 230 x 85 x 190 ) |
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Weight |
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q Environmental conditions |
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Operating temperature range |
0 to |
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