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TN 16I
/ 12 I / 8I |
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TN 16I, TN 12I, and TN 8I are multi-channel thermometer (16, 12 or 8 input
channels) with permanent
supply of each of the 16, 12 or 8 probes attached. It offers very high precision measurements to an accuracy of +/-0.002°C or better
(when used with ITS-90 Pt100 sensor) with resolution at an impressive 0.001°C
(over the entire range -180 to +650°C). Channel selection is performed
either manually
or automatically
(scanning) or remotely.
Other key performances are: - Long-term
drift < 0.005°C +0.001% of Rdg (per year) - Short-term
stability (jitter) < 0.5 digit ( = 0.0005°C) - Temperature
coefficient < 1ppm/°C (max.) - Probe linearization
(ITS-90) to better than 0.002°C |
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Technical specifications |
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q Accuracy |
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Accuracy (after calibration at two fixed points) |
0.002°C |
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q Input channels |
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Number of channels |
8 for TN 8I 12 for TN 12I 16 for TN 16I |
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Channel selection |
3 modes: MANU, AUTO and RS232 Mode selection with the [MAM] key |
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Measuring currents |
16, 12, or 8 currents of 1 mA: 1 per probe (all attached probes are permanently supplied) Optionally: currents of 0.25 mA |
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MANU mode |
Channel selection with [INC]/[DEC] keys Channel n° is displayed (0 to 15) |
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AUTO mode |
Successive and permanent display of the 16, 12 or 8 channels Adjustable scanning interval: 1 to 255sec |
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RS232 mode |
Channel selection via RS232 with PC |
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q Measurement range |
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Temperature measurement range |
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q Resolution |
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Thermometer resolution |
0.001°C |
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q Probes 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 |
< 0.005°C +0.001% of Rdg (per year) |
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Short-term stability (jitter) |
0.5 LSD ( = |
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q Auto-zero |
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Auto-zero residual |
< 0.0002°C/°C (at the |
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q Temperature coefficient |
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Temperature coefficient |
< 1 ppm/°C (max.) |
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q Adjustment |
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Adjustment of system Zero & Full-Scale |
By means of 3 front-panel keys ([CAL], [INC], and [DEC]) Adjustment on each channel |
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q Display |
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Display |
Easy-to read display with 9 digits (2 digits used for channel n° display), red LEDs |
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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) for TN 8I (mm: 230 x 85 x 190 ) 2U 19-inch rack optionally |
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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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