Rosemount 848T Specifiche Pagina 68

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60
Reference Manual
00809-0100-4697, Rev GA
Appendix A: Reference Data
November 2014
Reference Data
A.4 Performance specifications
A.4.1 Stability
±0.1% of reading or 0.1 °C (0.18 °F), whichever is greater, for 2 years for RTDs
±0.1% of reading or 0.1 °C (0.18 °F), whichever is greater, for 1 year for thermocouples.
A.4.2 Self calibration
The transmitter’s analog-to-digital circuitry automatically self-calibrates for each temperature
update by comparing the dynamic measurement to extremely stable and accurate internal
reference elements.
A.4.3 Vibration effect
Transmitters are tested to high pipeline vibration specification per IEC 60770-1 1999 with no
effect on performance.
A.4.4 Electromagnetic compatibility compliance testing
Meets the criteria under IEC 61326:2006
Meets the criteria under European Union Directive 2004/108/EC
A.4.5 Accuracy
Table A-1. Input Options/Accuracy
Sensor option Sensor reference
Input ranges
Accuracy over
range(s)
°C °F °C °F
2- and 3-Wire RTDs
Pt 50 ( = 0.00391)
GOST 6651-94 –200 to 550 –328 to 1022 ± 0.57 ± 1.03
Pt 100 ( = 0.00391)
GOST 6651-94 –200 to 550 –328 to 1022 ± 0.28 ± 0.50
Pt 100 ( = 0.00385)
IEC 751; = 0.00385, 1995 –200 to 850 –328 to 1562 ± 0.30 ± 0.54
Pt 100 ( = 0.003916)
JIS 1604, 1981 –200 to 645 –328 to 1193 ± 0.30 ± 0.54
Pt 200 ( = 0.00385)
IEC 751; = 0.00385, 1995 –200 to 850 –328 to 1562 ± 0.54 ± 0.98
Pt 200 ( = 0.003916)
JIS 1604; = 0.003916, 1981 –200 to 645 –328 to 1193 ± 0.54 ± 0.98
Pt 500
IEC 751; = 0.00385, 1995 –200 to 850 –328 to 1562 ± 0.38 ± 0.68
Pt 1000
IEC 751; = 0.00385, 1995 –200 to 300 –328 to 572 ± 0.40 ± 0.72
Ni 120
Edison Curve No. 7 –70 to 300 –94 to 572 ± 0.30 ± 0.54
Cu 10
Edison Copper Winding No. 15 –50 to 250 –58 to 482 ± 3.20 ± 5.76
Cu 100 (a=428)
GOST 6651-94 -185 to 200 -365 to 392 ± 0.48 ±0.86
Cu 50 (a=428)
GOST 6651-94 -185 to 200 -365 to 392 ± 0.96 ±1.73
Cu 100 (a=426)
GOST 6651-94 -50 to 200 -122 to 392 ± 0.48 ±0.86
Cu 50 (a=426)
GOST 6651-94 -50 to 200 -122 to 392 ± 0.96 ±1.73
Thermocouples—Cold Junction Adds + 0.5 °C to Listed Accuracy
NIST Type B (Accuracy varies
according to input range)
NIST Monograph 175
100 to 300
301 to 1820
212 to 572
573 to 3308
± 6.00
± 1.54
± 10.80
± 2.78
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