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Reference Manual
00809-0400-4728, Rev AA
June 2011
A-7
Rosemount 644
Ambient Temperature Effect
Table A-2. Ambient Temperature Effect
Sensor Options Sensor Reference
Input Range
(°C)
Temperature Effects per 1.0 °C
(1.8 °F) Change in Ambient
Temperature
(1)
Range D/A Effect
(2)
2-, 3-, 4-wire RTDs
Pt 100 ( = 0.00385) IEC 751 -200 to 850 0.003 °C (0.0054 °F) Entire Sensor Input Range 0.001% of span
Pt 200 ( = 0.00385) IEC 751 -200 to 850 0.004 °C (0.0072 °F) Entire Sensor Input Range 0.001% of span
Pt 500 ( = 0.00385) IEC 751 -200 to 850 0.003 °C (0.0054 °F) Entire Sensor Input Range 0.001% of span
Pt 1000 ( = 0.00385) IEC 751 -200 to 300 0.003 °C (0.0054 °F) Entire Sensor Input Range 0.001% of span
Pt 100 ( = 0.003916) JIS 1604 -200 to 645 0.003 °C (0.0054 °F) Entire Sensor Input Range 0.001% of span
Pt 200 ( = 0.003916) JIS 1604 -200 to 645 0.004 °C (0.0072 °F) Entire Sensor Input Range 0.001% of span
Ni 120 Edison Curve No. 7 -70 to 300 0.003 °C (0.0054 °F) Entire Sensor Input Range 0.001% of span
Cu 10 Edison Copper
Winding No. 15
-50 to 250 0.03 °C (0.054 °F) Entire Sensor Input Range 0.001% of span
Pt 50 ( = 0.00391) GOST 6651-94 -200 to 550 0.004 °C (0.0072 °F) Entire Sensor Input Range 0.001% of span
Pt 100 ( = 0.00391) GOST 6651-94 -200 to 550 0.003 °C (0.0054 °F) Entire Sensor Input Range 0.001% of span
Cu 50 ( = 0.00426) GOST 6651-94 -50 to 200 0.008 °C (0.0144 °F) Entire Sensor Input Range 0.001% of span
Cu 50 ( = 0.00428) GOST 6651-94 -185 to 200 0.008 °C (0.0144 °F) Entire Sensor Input Range 0.001% of span
Cu 100 ( = 0.00426) GOST 6651-94 -50 to 200 0.004 °C (0.0072 °F) Entire Sensor Input Range 0.001% of span
Cu 100 ( = 0.00428) GOST 6651-94 -185 to 200 0.004 °C (0.0072 °F) Entire Sensor Input Range 0.001% of span
Thermocouples
Type B
NIST Monograph 175,
IEC 584
100 to 1820
0.014 °C T 1000 °C 0.001% of span
0.032 °C – (0.0025% of (T –
300))
300 °C T < 1000 °C 0.001% of span
0.054 °C – (0.011% of (T – 100)) 100 °C T < 300 °C 0.001% of span
Type E
NIST Monograph 175,
IEC 584
-50 to 1000
0.005 °C + (0.0043% of T) All 0.001% of span
Type J
NIST Monograph 175,
IEC 584
-180 to 760
0.0054 °C + (0.00029%of T) T 0 °C 0.001% of span
0.0054 °C + (0.0025% of
absolute value T)
T < 0 °C 0.001% of span
Type K
NIST Monograph 175,
IEC 584
-180 to 1372
0.0061 °C + (0.0054% of T) T 0 °C 0.001% of span
0.0061 °C + (0.0025% of
absolute value T)
T < 0 °C 0.001% of span
Type N
NIST Monograph 175,
IEC 584
-200 to 1300
0.0068 °C + (0.00036% of T) All 0.001% of span
Type R
NIST Monograph 175,
IEC 584
0 to 1768
0.016 °C T 200 °C 0.001% of span
0.023 °C – (0.0036% of T) T < 200 °C 0.001% of span
Type S
NIST Monograph 175,
IEC 584
0 to 1768
0.016 °C T 200 °C 0.001% of span
0.023 °C – (0.0036% of T) T < 200 °C 0.001% of span
Type T
NIST Monograph 175,
IEC 584
-200 to 400
0.0064 °C T 0 °C 0.001% of span
0.0064 °C +(0.0043% of
absolute value T)
T < 0 °C 0.001% of span
DIN Type L DIN 43710 -200 to 900
0.0054 °C + (0.00029% of T) T 0 °C 0.001% of span
0.0054 °C + (0.0025% of
absolute value T)
T < 0 °C 0.001% of span
DIN Type U DIN 43710 -200 to 900
0.0064 °C T 0 °C 0.001% of span
0.0064 °C + (0.0043% of
absolute value T)
T < 0 °C 0.001% of span
Type W5Re/W26Re ASTM E 988-96 0 to 2000
0.016 °C T 200 °C 0.001% of span
0.023 °C – (0.0036% of T) T < 200 °C 0.001% of span
GOST Type L GOST R 8.585-2001 -200 to 800
0.007 °C T 0 °C 0.001% of span
0.007 °C – (0.003% of absolute
value T)
T < 0 °C 0.001% of span